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Właściwości fizykochemiczne smoothie owocowo-warzywnego z dodatkiem pestek awokado

Rolewicza Aleksandra, Szmigielski Marek, Grządka Elżbieta

Przemysł Chemiczny

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2025

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T. 104, nr 3

373--376

PL

Przeprowadzono analizy fizykochemiczne świeżo przygotowanego smoothie marchwiowo-bananowego oraz wzbogaconego odpowiednio spreparowaną (wstępnie rozdrobnioną, wysuszoną i zmieloną) pestką z awokado (Persea americana Mill.), stosowaną w ilości 2 g/100 mL. Próbki zbadano również po 24 h chłodniczego przechowywania. W wyrobach uzupełnionych sproszkowaną pestką awokado zaobserwowano wzrost zawartości ekstraktu, polifenoli i witaminy C w porównaniu z próbką kontrolną. Analiza EDX wykazała, że składy pierwiastkowe próbek znacząco różniły się od siebie jakościowo. Dodatek suszu z pestki awokado wzbogacił smoothie w cenne dla zdrowia makroelementy. Wyniki przeprowadzonych badań sugerują, że poprzez dodatek proszku z pestki awokado do smoothie marchwiowo-bananowego można uzyskać produkt charakteryzujący się lepszymi właściwościami fizykochemicznymi, stabilniejszy koloidalnie i z większą ilością biodostępnych składników odżywczych.

EN

Physicochem. analyses were carried out on a freshly prepd. carrotbanana smoothie and one enriched with appropriately prepd. (precrushed, dried and ground) avocado seed (Perseaamericana Mill.), used in the amt. of 2 g/100 mL. The samples were also analyzed after 24 h of storage in refrigerated conditions. In the samples with the addn. of powdered avocado seed, an increase in the content of extract, polyphenols and vitamin C was obsd. compared to the control sample. EDX anal. showed that the elemental compn. of the samples differed significantly in terms of quality. The addn. of dried avocado seed enriched the smoothie with addnl. amts. of macronutrients valuable for health. The results of the conducted studies suggest that by adding avocado seed powder to the carrot-banana smoothie, a product with better physicochem. properties, more colloidal stability and more bioavailable nutrients can be obtained.

2

Elektrochemiczne i biologiczne badania DNA : plazmidy i chromosomalne DNA : krótka historia badań DNA w pracowni elektroanalizy chemicznej

Elżanowska Hanna, Kępska-Tatar Blanka

Wiadomości Chemiczne

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2024

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[Z] 78, 7-8

943--971

EN

For a number of years, the DNA interactions with various compounds have been a subject of research at the Laboratory of Electroanalytical Chemistry. Plasmids and chromosomal DNAs have been used to investigate and distinguish between the DNA interactions with intercalators, newly synthesized potential anticancer drugs and antioxidants. So far, plasmids have been rarely used in electrochemical experiments and therefore their use can be considered a novelty in our investigations, realized in collaboration with the Molecular Biology Laboratory at the Faculty of Biology of the University of Warsaw. New potential anticancer drugs have been synthesized at the Institute of Organic Industrial Chemistry and tested on cancer cell lines at the Pharmacy Department of the Warsaw Medical University. The methodology of DNA-drugs investigations has been tested with the use of a typical DNA intercalator, Methylene Blue, and resulted in the sequential use of four electrochemical methods, i.e. SW, DP, AC 00 i AC 900 to assess redox properties and capacity/resistance changes of the electrode layers formed. Such complex electroanalytical methodology allowed for distinguishing between the anticancer properties of two seemingly similar compounds, IPBD and Cl-IPBD, which differed only by one substituent. The comparison of these electrochemical results with biological testing (on cancer cell lines) these prospective anticancer drugs, showed good correlation of the two different methods used, in prediction of anticancer properties of new drugs. Thus, it has been shown that the combination of electroanalytical methods can be successfully used for preliminary testing of anticancer drugs, before further confirming their use by complex and time consuming biological methods. It should be noted that the interactions of plasmids with the antioxidants such as: riboflavin (Rb, Wit.B2), Witamin C and Rutin (RU), used in this work and tested by electroanalytical methods, showed contrasting results to the ones obtained for anticancer drugs.

3

Rośliny źródłem naturalnych substancji przeciwutleniających

Hać-Szymańczuk Elżbieta

Przemysł Spożywczy

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2024

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T. 78, nr 12

44--48

PL

Żywność pochodzenia roślinnego jest bogatym źródłem związków o właściwościach przeciwutleniających. Konsumenci stają się coraz bardziej świadomi i bardzo uważnie czytają etykiety opisujące żywność. W miarę jak nacisk na czyste etykiety staje się coraz bardziej powszechny, stosowanie naturalnych przeciwutleniaczy w produktach spożywczych wzrasta. Związki te reprezentowane są przede wszystkim przez: polifenole, witaminy, karotenoidy, kwasy organiczne, wapń, selen, chlorofiliny, glutation, indole, fityniany, tiocyjaniany i izomery kwasu linolowego. W niniejszym artykule omówiono wybrane owoce i warzywa, przyprawy oraz inne rośliny posiadające udokumentowane działanie przeciwutleniające.

EN

Plant-based foods are a rich source of antioxidant compounds. Consumers are becoming increasingly aware and are reading food labels very carefully. As the push for clean labels becomes more widespread, the use of natural antioxidants in food products will continue to grow. These compounds are represented primarily by polyphenols, vitamins, carotenoids, organic acids, calcium, selenium, chlorophyllins, glutathione, indoles, phytates, thiocyanates and linoleic acid isomers. This article discusses selected fruits and vegetables, spices, and other plants that have documented antioxidant effects.

4

Physiological and Biochemical Responses of Maize (Zea mays L.) to the Application of Re-Treated Urban Wastewater Using Wood Waste Biochar

Soujoud Radouane, Lamsaadi Nadia, Bouhadi Mohammed, El Moukhtari Ahmed, Ourribane Malika

Journal of Ecological Engineering

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2024

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Vol. 25, nr 6

180--193

EN

The present work aimed to evaluate the effect of re-treated urban wastewater using wood biochar on the development of maize (Zea mays L.) plants. Maize seeds were sown in plastic pots, containing agronomic soil, and watered with treated wastewater (TWW) before and after re-treatment with wood waste biochar. Before re-treatment, results indicated that the application of TWW at 75% significantly enhanced the maize growth, in terms of plant height, shoot fresh (SFW) and dry (SDW) weight compared to control (natural water). In turn, the application of TWW at 100% showed the opposite effects. In fact, the total chlorophyll content and relative water content (RWC) were significantly decreased by 20% and 4%, respectively, compared to control plants. Furthermore, TWW at 100% significantly (p < 0.05) induced an accumulation of oxidative stress markers (MDA, H2O2). The non-enzymatic antioxidant process (total polyphenols and flavonoids) and the enzymatic antioxidant activity (CAT and APX) were also interestingly increased. The obtained negative correlation between maize growth and the accumulation of oxidative stress markers could explain the showed reduction in maize growth under 100% TWW. However, this effect seems to be alleviated in maize plants when they were watered with TWW re-treated with biochar, indeed, a significant improvement was marked in plant height, SFW, SDW, total chlorophyll content and RWC by 44%, 106%, 176%, 38% and 12%, respectively, compared to maize under 100% TWW. The finding suggests that the use of TWW diluted or re-treated by wood biochar could be a relevant approach to valorize TWW in agricultural purposes.

5

Morpho-Physiological and Biochemical Responses of Cymbopogan citratus and Asparagus officinalis L. to Waterlogging and Salinity Stress

Hanif Asma, Sattar Maida, Qiushi Qin, Gul Mah, Shahzad Sobia, Jian Wei, Hassan Muhammad Umair, Al-Khayri Jameel Mohammed, Aldaej Mohammed Ibrahim, Sattar Muhammad Naeem

Journal of Ecological Engineering

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2024

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Vol. 25, nr 2

115--125

EN

Salinity stress is an alarming issue causing a substantial reduction in crop productivity. Waterlogging also limits crop productivity and the extent of both these stresses is increasing due to climate change and global warming. This study investigated the response of Lemongrass and Asparagus grass under salinity stress and waterlogged conditions. The study was comprised of different treatments: control, salinity stress, waterlogged conditions and salinity stress + waterlogged conditions. The results revealed that salinity + waterlogging pressure negatively affected cymbopogan citratus and Asparagus officinalis. The physio-morphological, biochemical attributes, enzymatic antioxidants, and nutrient parameters showed a greater reduction under combined salinity and water waterlogged conditions. Waterlogging caused a marked decrease in root growth, leaves production and plant height of both grasses, compared to the control. Salinity stress also resulted in similar morphological modifications, albeit to a lesser extent. Physiological analysis showed a decline in chlorophyll content and RWC, indicating reduced photosynthetic capacity and water uptake efficiency in response to waterlogging and salinity. Electrolyte leakage, increased significantly under waterlogging and salinity stress, suggesting cellular damage and membrane disruption. C.citratus exhibited greater resilience to waterlogging and salinity compared to A. officinalis. Despite the adverse conditions, C. citratus maintained higher chlorophyll content, RWC, and lower electrolyte leakage, indicating better stress tolerance mechanisms. In conclusion, waterlogging and salinity induced significant morphophysiological modifications in both C. citratus and A. officinalis. However, C. citratus exhibited better tolerance to these stresses, suggesting its potential for cultivation in waterlogged and saline environments.

6

Growth, Physiological and Biochemical Responses of Mung Bean (Vigna radiata L.) to Cadmium Polluted Soil

Hayat Rida, Khan Imran, Chattha Muhammad Umer, Hassan Muhammad Umair, Jian Wei, Al-Khayri Jameel Mohammed, Aldaej Mohammed Ibrahim, Sattar Muhammad Naeem, Rezk Adel Abdel-Sabour, Almaghasla Mustafa Ibrahim

Journal of Ecological Engineering

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2024

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Vol. 25, nr 3

75--84

EN

Cadmium (Cd) toxicity is an alarming issue for our agricultural soils and serious threat to crop productivity. The concentration of Cd in our soils is continuously increasing which is posing serious threat to plants, animals and humans. Mung bean is a conventional pulse crop cultivated all over the world. Thus, this study’s goal was to evaluate response of mung bean seedlings in terms of growth, physiology, and biochemistry to varying degrees of Cd stress. The investigation examined various Cd levels, including control, 5, 10 and 15 mg Cd/kg of soil. The results indicate that mungbean growth, physiological and biochemical components was negatively impacted by Cd stress. Results depicted that Cd (15 mg/kg) reduced the growth attributes photosynthetic pigments (Chl. a, b and carotenoids), total soluble proteins (TSP) and free amino acids (FAA) and increased the malondialdehyde (MDA), hydrogen peroxide (H2O2), and electrolyte leakage (EL). Interestingly, activities of all four antioxidants (ascorbic acid, catalase, ascorbate peroxidase and peroxidase) increased with increase in Cd toxicity.

7

The Sulfur Dioxide Absorption Capacity of Plants Tecoma Stans and its Effect on Antioxidants

Al-Jaba Sura Razzaq Manhee, Al-Janabi Ameera O. Hussain

Ecological Engineering & Environmental Technology

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2024

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Vol. 25, iss. 9

268--276

EN

The current study used to prove the efficiency of Tecoma stans to sulfur dioxide gas (SO2 )was at a concentration of 10 mg·m-3 which is equal to 3.82 ppm for the period from summer exposure (May – June 2023) to reduce SO2 thus reduce some gaseous pollutants that cause global warming and some air pollutants and know the effect of seasonal conditions to mitigate these pollutants. The physiological changes of the three replicates of study plant were observed through equal time periods daily for a period of seven days covered with polyethylene under controlled conditions represented by a greenhouse. The process was repeated three times between the three exposures provide rest periods for the plant for a week. During summer exposure, it was found that the concentration of flavonoids was significantly increased as compare to control (5.222 ± 0.27 mg/100 ml of extract) from 6.58 ± 0.43 to 6.24 ± 0.31 mg/100 ml of extract, but this concentration was increased after the third exposure into to 6.99 ± 0.29 mg/100 ml of extract. There was decrease in Tannins concentration after the second exposure (with concentration 1.5 ± 0.05 to 0.72 ± 0.01 µl/ml)), but this concentration was returned increased significantly to 1.36 ± 0.01 µl/ml) after the third exposure to SO2 . Also in The enzyme activities for peroxidase (POD), superoxide dismutase (SOD) and catalase (CAT) demonstrated varied responses to SO2 exposure, and T. stans showing distinct patterns of enzyme activation. The effect of POD and CAT increased in plants which exposure into SO2 , whereas CAT play important role in inhibition of ROS.

8

The influence of the production process management on the health-promoting properties of sauerkraut

Zawadzki Mateusz

Scientific Journal of Gdynia Maritime University

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2023

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nr 126

74--87

EN

The article presents the issue of health-promoting properties of sauerkraut based on a critical analysis of literature sources. The issue of the properties of cabbage and sauerkraut is discussed, and the characteristics of the most frequently used species in the pickling process are presented, namely white cabbage (Latin Brassica oleracea var f. Alba). Moreover, the content of water, nutrients and minerals in whitehead cabbage and sauerkraut have been presented and compared, showing their differences. The course of the ensilage process has been discussed, and the lactic acid bacteria mainly responsible for it, Lactobacillus plantarum, has been indicated. The author has also pointed to glucosinolates in sauerkraut, which show high anti-cancer activity, primarily preventing the development of breast, prostate, lung and stomach cancer. The influence of the production process on the health-promoting properties of sauerkraut has also been analysed. For these reasons, the aim of the work was to present the Griffin model in the context of the assessment of sauerkraut production process management. Such action made it possible to determine the stages of the production process that should be subject to special control.

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Klitoria ternateńska (Clitoria ternatea) – właściwości prozdrowotne i wykorzystanie w żywności

Gramza-Michałowska Anna, Kulczyński Bartosz

Przemysł Spożywczy

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2023

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T. 77, nr 12

31--35

PL

W pracy scharakteryzowano wieloletnią roślinę strączkową z rodziny bobowatych Clitoria ternatea L., znaną także pod nazwą groszek motylkowy lub groszek niebieski. Ma szereg właściwości i zastosowań rolniczych oraz technologicznych, w tym m.in. jako pasza, czy barwnik spożywczy. Ze względu na zawartość związków biologicznie aktywnych o pożądanych właściwościach funkcjonalnych roślina ta jest również wykorzystywana w celach leczniczych, m.in. w zaburzeniach neurologicznych, poprawy zdolności zapamiętywania, działa uspokajająco i antydepresyjnie, przeczyszczająco, przeciwbólowo, może chronić przed cukrzycą lub miażdżycą. Opisane właściwości wskazują, że Clitoria ternatea może stanowić pożądany składnik nowych receptur żywności funkcjonalnej lub suplementów diety.

EN

This paper characterizes the perennial legume of the leguminous bean family Clitoria ternatea L., also known as butterfly pea or blue pea. It has a number of agricultural and technological properties and uses, including, among others, as animal feed or food colouring. Due to its content of biologically active compounds with desirable functional properties, the plant is also used for medicinal purposes, e.g. in neurological disorders, improvement of memory capacity, sedative and antidepressant effects, laxative, analgesic, may protect against diabetes or atherosclerosis. The properties described indicate that Clitoria ternatea could be a desirable ingredient in new functional food formulations or dietary supplements.

10

Possibility of Water Saving in Processing of Snack Pellets by the Application of Fresh Lucerne Sprouts: Selected Aspects and Nutritional Characteristics

Combrzyński Maciej, Wójtowicz Agnieszka, Biernacka Beata, Oniszczuk Tomasz, Mitrus Marcin, Soja Jakub, Różyło Renata, Wojtunik-Kulesza Karolina, Kasprzak-Drozd Kamila, Oniszczuk Anna

Journal of Ecological Engineering

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2023

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Vol. 24, nr 12

130--142

EN

New types of extruded snack pellets of wheat-corn blend base and fresh lucerne sprouts were developed. The aim of the study was to examine the effect of fresh lucerne sprouts addition on the water consumption, processing efficiency and the specific mechanical energy during production of wheat-maize snack pellets. Additionally, the total phenolic content and antiradical activity, as well as the water absorption and water solubility indices in samples processed under variable processing conditions were tested. The extrusion-cooking of blends consisted of 10, 20 and 30% of lucerne sprouts was carried out using a single screw extruder at screw speeds of 60 and 100 rpm, and at moisture contents of 32, 34 and 36%. Replacement of wheat-corn flour blends by fresh lucerne sprouts at various levels (10, 20 and 30%) enabled to sufficiently reduce technological water which is needed in extrusion-cooking process of snacks pellets. The limitation of water was from 89 to 100% if fresh lucerne sprouts were used, depending on the recipe and dough moisture level tested. Total phenolic content and antioxidant activity increased significantly due to lucerne sprouts addition. Furthermore, higher water absorption and water solubility index were noted if increased initial moisture content was applied during the processing of snack pellets. It can be concluded that fresh lucerne sprouts can be valuable additives, enabling to save the technological water in production process and to obtain nutritionally valuable supplemented wheat-corn-based snack pellets.

11

Antioxidant properties of Moringa oleifera and Withania somnifera extracts and their use in cosmetics for men

Jezierska Adrianna, Sykuła Anna

Biotechnology and Food Science

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2023

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Vol. 85, nr 1

34--42

EN

Nowadays, men are paying more and more attention to their appearance, and thus try to provide their skin with proper care so that it looks healthy and without signs of aging. In the present study, ashwagandha (Withania somnifera) and moringa oleifera (Moringa oleifera) were selected from the most popular adaptogens used in cosmetics, which are currently not commonly used in cosmetic preparations for men. The selected adaptogens were compared for their phytochemical and antioxidant properties to determine their skin care effects in cosmetics. The phytochemical content was evaluated through the determination of total phenolic content and in vitro antioxidant capacity was determined by DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS{2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid)} free radical scavenging tests. The total phenolic contents 1.81±0.13 and 0.14±0.02 mg GAE/g extract were found to be present in Moringa oleifera and Withania somnifera glycol-water extracts, respectively. Among the two chosen extracts, Moringa oleifera exhibited significant free radical scavenging activity, ABTS (0.964 ± 0.021 mg TE/g extract) and DPPH (0.822 ± 0.004 mg TE/g extract). It can be concluded that Moringa oleifera extract has strong antioxidant properties than Withania somnifera extract.

12

Czarnuszka siewna, tarczyca bajkalska, łuska gryki – potencjalne źródła naturalnych przeciwutleniaczy

Zwolan Adam

Przemysł Spożywczy

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2022

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T. 76, nr 6

37--39, 43

PL

Decyzje towarzyszące zakupom żywności są w znaczącym stopniu warunkowane wiedzą żywieniową konsumentów. Wzrost świadomości i kontrowersje wobec stosowania syntetycznych dodatków do żywności stawiają przed branżą spożywczą wyzwanie: jak zapewnić wysoką jakość produktów przy zastosowaniu naturalnych substancji dodatkowych. Aby ograniczyć negatywne zmiany chemiczne spowodowane utlenianiem, do produktów spożywczych coraz częściej dodaje się związki pochodzenia roślinnego np. polifenole. Poza owocami i warzywami bogatym źródłem polifenoli, a tym samym związków o właściwościach przeciwutleniających, są przyprawy i zioła. Cały czas prowadzone są badania w kierunku pozyskania nowych, potencjalnych źródeł naturalnych przeciwutleniaczy, których dodatek będzie nie tylko chronił żywność przed niekorzystnymi zmianami podczas przechowywania, ale również wzbogacał ją w składniki bioaktywne. W.tym celu mogą być stosowane takie rośliny, jak czarnuszka siewna, tarczyca bajkalska czy gryka.

EN

Food purchasing decisions are largely determined by consumers’ nutritional knowledge. Growing consumer awareness and controversy over the use of synthetic additives challenge the food industry to ensure quality high product using natural additives. In order to reduce the negative chemical changes caused by oxidation, compounds of plant origin, such as polyphenols, are increasingly added to food products. Besides fruit and vegetables, a rich source of polyphenols, and thus compounds with antioxidant properties are spices and herbs. Research is constantly being conducted to find new potential sources of natural antioxidants, the addition of which will not only protect food from adverse changes during storage, but also enrich it with bioactive components. Plants such as black cumin, baikal skullcap or buckwheat can be used for this purpose.

13

A novel HPLC method for simultaneous quantification of eleven phenolic antioxidants in commercial personal care and food products which contain extracts of green apple, pomegranate and argan oil

Moussad Ranim I., Salam Randa A. Abdel, Hadad Ghada M., EL Gindy Alaa, Foudah Ahmed I., Hameed Eman A. Abdel

Acta Chromatographica

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2022

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Vol. 34, no. 1

77--86

EN

In this study, a simple, fully validated and rapid reversed-phase HPLC with photodiode array detector method was developed for the simultaneous determination of 11 selected phenolic antioxidants over 33 min in personal care and food samples containing extracts of green apple, pomegranate (Ponica granatum) and argan oil (Argania spinosa). The method was performed using NUCLEODUR C18 column 5 µm particle size and 12.5 cm length. The HPLC mobile phase was prepared as follows, solution A: 1% aqueous acetic acid and solution B: Acetonitrile. The method was gradient at flow rate 1.0 mL/min with a simple mobile phase, minimal sample preparation, and diminished organic solvent usage (3% acetonitrile for almost 90% of the run time). The detection was carried out at 278 nm. The method presented good precision and accuracy with RSD% values ranged between 0.33 and 1.94% and wide linear range. The developed method was successfully applied on 67 personal care and food products present in Egyptian market and can be used for routine screening in laboratory for the regular quality control of the antioxidant content for products containing the mentioned extracts.

14

Fitozwiązki jako wszechstronne dodatki do polimerów

Olejnik Olga, Masek Anna

Modelowanie Inżynierskie

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2021

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T. 42, nr 73

30--34

PL

Substancje pomocnicze są niezbędne, by poprawić lub nadać nowe właściwości materiałom polimerowym. Niestety, wiele z dodatków nie tylko otrzymywana jest z surowców nieodnawialnych, ale także negatywnie oddziałuje na środowisko naturalne oraz zdrowie człowieka, co jest coraz częściej komentowane przez naukowców z dziedziny ekologii. Niniejsza praca przedstawia przykłady fitozwiązków ze szczególnym uwzględnieniem przeciwutleniaczy, które mogą być stosowane jako wszechstronne proekologiczne dodatki do polimerów. Mają one szansę spełniać rolę nie tylko stabilizatorów, ale także wiele z nich może jednocześnie znaleźć inne zastosowanie, np. jako barwniki, napełniacze, plastyfikatory, indykatory starzenia czy substancje sieciujące. Związki te mogą sprawdzić się w roli proekologicznych dodatków z uwagi na ich pochodzenie, nietoksyczność oraz zdolność do biodegradacji.

EN

Additives are necessary in order to improve or give to polymeric materials new properties. Unfortunately, many of these substances are derived from nonrenewable resources as well as they have a negative impact on natural envi- ronment and human health, which is widely commented by ecologists. This paper presents examples of phyto- chemicals, especially natural antioxidants, which can be applied as versatile pro-ecological additives for polymers. These natural substances can be utilized not only as stabilizers, but also as dyes, fillers, plasticizers, aging indica- tors or curing agents simultaneously. These compounds can be used as fully pro-ecological additives because of the origin, non-toxicity and biodegradability.

15

Waterlogging tolerance: A review on regulative morpho-physiological homeostasis of crop plants

Sharma Shubhangani, Sharma Jyotshana, Soni Vineet, Kalaji Hazem M., Elsheery Nabil I.

Journal of Water and Land Development

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2021

|

no. 49

16--28

EN

The natural environment is being drastically affected by climate change. Under these severe environmental conditions, the growth and productivity of agricultural crops have reduced. Due to unpredictable rainfall, crops growing in the field are often exposed to waterlogging. This leads to significant crop damage and production losses. In this review paper, the morphological and physiological adaptations such as development of aerenchyma, adventitious roots, radial root oxygen loss barrier, and changes in chlorophyll fluorescence parameters of crops under waterlogging are discussed. This will help to understand the effects of waterlogging on various crops and their adaptation that promotes crop growth and productivity. To meet the food requirements of a growing population, the development of waterlogging tolerant crops by screening and plant breeding methods is necessary for plant breeders. Better knowledge of physiological mechanisms in response to waterlogging will facilitate the development of techniques and methods to improve tolerance in crops.

16

Wpływ dodatków przeciwutleniających na wybrane właściwości chemiczne oleju z nasion maku tłoczonego na zimno

Blicharz-Kania Agata, Pecyna Anna, Andrejko Dariusz, Sagan Agnieszka, Zdybel Beata, Kobus Zbigniew

Przemysł Chemiczny

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2020

|

T. 99, nr 1

109--112

PL

Przedstawiono wybrane właściwości chemiczne oleju tłoczonego na zimno z dwóch odmian maku: niebieskiego i białego. Zbadano wpływ dodatku kurkumy i rozmarynu na zmiany parametrów określających jakość otrzymanego oleju: liczby kwasowej (LK), liczby nadtlenkowej (LN) i stabilności oksydacyjnej. Dodatek naturalnych przeciwutleniaczy, takich jak rozmaryn i kurkuma wydłuża trwałość oleju, pozwala spowolnić proces hydrolizy tłuszczu w oleju z nasion maku oraz wydłuża czas indukcji badanych olejów.

EN

Cold-pressed white and blue poppy seed oils were improved by the addn. of rosemary or turmeric herbs (1% by mass). The oils were stored at 10 ± 1°C for 14 days, studied for acid index (AN), peroxide value (PN) and oxidative stability and compared with the corresponding values of the unmodified oils. The storage of oils with both additives resulted in a decrease in AN and PN values as well as improved their oxidative stability.

17

Selected pro-healthy food products in male reproduction®

Stachoń Małgorzata, Kołota Aleksandra, Lachowicz Katarzyna

Postępy Techniki Przetwórstwa Spożywczego

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2020

|

nr 1

110--120

EN

Infertility is one of the most serious medical issues and its prevalence has dramatically increased worldwide, especially in the past few decades. Recent studies have demonstrated that nutrition and lifestyle play crucial roles in the normal functioning of the reproductive system, as well as in prevention and in supportive treatment of infertility. Fruits and vegetables are a special group of foods that provide many nutrients necessary for female and male reproductive health. The paper presents current knowledge about the effects of nutrients contained in fruits and vegetables on male reproductive functions and their use in the supportive treatment of infertility. Understanding these issues can help in designing a proper diet for men of reproductive age planning parenthood, and/or those who have been diagnosed with infertility.

PL

Niepłodność jest jednym z najpoważniejszych problemów medycznych, a jej rozpowszechnienie dramatycznie wzrosło na całym świecie, szczególnie w ciągu ostatnich kilku dekad. Ostatnie badania wykazały, że odżywianie i styl życia odgrywają kluczową rolę w prawidłowym funkcjonowaniu układu rozrodczego, a także w zapobieganiu i wspomaganiu leczenia niepłodności. Owoce, warzywa i orzechy to grupa żywności, która dostarcza wiele składników odżywczych niezbędnych dla zdrowia reprodukcyjnego kobiet i mężczyzn. W niniejszej pracy przedstawiono aktualną wiedzę na temat wpływu składników odżywczych zawartych w owocach, warzywach i orzechach na męskie funkcje rozrodcze i ich zastosowanie we wspomaganiu leczenia niepłodności. Zrozumienie tych problemów może pomóc w opracowaniu odpowiedniej diety dla mężczyzn w wieku rozrodczym planujących rodzicielstwo i / lub tych, u których zdiagnozowano niepłodność.

18

Przetwarzanie odpadów z produkcji cebuli w żywność funkcjonalną

Piechowiak Tomasz, Józefczyk Radosław, Balawejder Maciej

Polish Journal for Sustainable Development

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2020

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T. 24, cz. 1

103--116

PL

W prezentowanej pracy przedstawiono przegląd dotychczasowego stanu prac badawczych związanych z wykorzystaniem łuski cebuli w produkcji żywności funkcjonalnej. Opisano dotychczasowe metody wyodrębniania związków bioaktywnych z łuski cebuli, wpływ antyoksydantów na właściwości funkcjonalne i prozdrowotne żywności oraz ich rolę w prewencji chorób cywilizacyjnych. Łuska cebuli jest odpadem powstającym podczas produkcji cebuli. Jak się okazuje, materiał ten, charakteryzuje się wysoką zawartością związków o charakterze antyoksydacyjnym, głównie flawonoidów (2-10 g/kg łupiny).

EN

In the paper a review of the current state of research works described in the literature and related to use of onion skins in the production of so-called functional food, is presented. The review was started by discussing the impact of antioxidants on the functional properties and health benefits of food and their role in the prevention of civilization diseases. Onion skin is waste generated during onion processing in the food industry and agriculture. As it turns out, this material has a high content of antioxidant compounds, mainly flavonoids (2-10 g / kg of onion skins). In the review current methods of the separation antioxidants, including those used in our own work, from the abovementioned skin, are discussed.

19

Stres oksydacyjny i wewnątrzkomórkowe mechanizmy antyoksydacyjne

Cal Magdalena, Kilisch Julia

Laboratorium - Przegląd Ogólnopolski

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2020

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nr 1

38--43

PL

Wszystkie organizmy żywe są narażone na działanie czynników zewnętrznych, które mogą indukować stres komórkowy. Wolne rodniki, których poziom jest kontrolowany przez mechanizmy wewnątrzkomórkowe, są niezbędne dla prawidłowego funkcjonowania komórki. Nadmiar wolnych rodników prowadzi do stresu oksydacyjnego. W komórkach w odpowiedzi na stres oksydacyjny są uruchamiane procesy mające na celu neutralizację nadmiaru wolnych rodników, aby zapobiec ich szkodliwemu wpływowi na elementy składowe komórki. W wyniku stresu oksydacyjnego uszkodzeniu mogą ulec tak ważne elementy komórki jak materiał genetyczny czy lipidy i białka. Bardzo ważną rolę w walce z wolnymi rodnikami odgrywają antyoksydanty, które są produkowane wewnątrzkomórkowo oraz te, które dostępne są jako suplementy diety lub po prostu w żywności.

EN

All living organisms are exposed to external factors that can induce cellular stress. Free radicals, whose level is controlled by intracellular mechanisms, are necessary for the proper functioning of a cell. Excess free radicals lead to oxidative stress. In cells, in response to oxidative stress, processes are initiated to neutralize excess free radicals in order to prevent their harmful effects on the cell's components. As a result of oxidative stress, such important elements of the cell as genetic material, lipids and proteins may be damaged. Antioxidants that are produced intracellularly and those that are available as dietary supplements or simply in food play a very important role in the fight against free radicals.

20

Impregnation of Poly(lactic Acid) with Polyphenols of Plant Origin

Latos-Brozio Malgorzata, Masek Anna

Fibres & Textiles in Eastern Europe

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2020

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Vol. 28, no. 2 (140)

15--20

EN

The aim of the research was the solvent-based impregnation of poly(lactic acid) (PLA) with polyphenols of plant origin. The process is a scientific novelty because quercetin, rutin, xanthone and green tea extract had not been previously used to stabilise PLA as a result of the solvent-based impregnation of a polymer. As part of the work, the extruded poly(lactic acid) was impregnated with ethanol solutions of polyphenols. Samples after impregnation were subjected to tests: determination of mechanical properties, differential scanning calorimetry, melt flow index and SEM microscopy. In addition, the properties of the samples, such as the Vicat softening temperature and change in colour, before and after controlled weathering as well as thermal and UV aging were investigated. On the basis of the results presented, the effectiveness of the impregnation of poly(lactic acid) with natural compounds was confirmed as a new method of stabilisation of the biodegradable polyester selected.

PL

Celem badań była rozpuszczalnikowa impregnacja poli(kwasu mlekowego) (PLA) z zastosowaniem polifenoli pochodzenia roślinnego. Proces jest nowością naukową, ponieważ kwercetyna, rutyna, ksanton i ekstrakt zielonej herbaty nie były wcześniej stosowane do stabilizacji PLA w procesie impregnacji polimeru. W ramach pracy wytłoczyny poli(kwasu mlekowego) impregnowano etanolowymi roztworami polifenoli. Próbki po impregnacji poddano badaniom: określeniu właściwości mechanicznych, różnicowej kalorymetrii skaningowej, wskaźnikowi szybkości płynięcia i mikroskopii SEM. Ponadto zbadano właściwości próbek, takie jak temperatura mięknienia Vicata i zmiana koloru, przed i po kontrolowanym starzeniu klimatycznym, termicznym i wywołanym promieniowaniem UV. Na podstawie przedstawionych wyników potwierdzono skuteczność impregnacji poli (kwasu mlekowego) związkami naturalnymi jako nową metodę stabilizacji wybranego biodegradowalnego poliestru.