Wyniki wyszukiwania - Biblioteka Nauki

1

Wykorzystanie i porównanie metody chemicznej i histologicznej w ocenie zawartości mięsa oraz części kostnych w produktach mięsnych

100%

Szymańska A. , Bogucka J.

Przemysł Spożywczy

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2023

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tom T. 77, nr 3

12--18

PL

W artykule przedstawiono wyniki oceny jakości produktów mięsnych metodą chemiczną i histologiczną. Oceniono zawartość mięsa i części kostnych w produktach oraz porównano wyniki obu metod badawczych. Stwierdzono, że wyniki oceny chemicznej i histologicznej są spójne, badanie chemiczne potwierdził obraz histologiczny. Z przeprowadzonych badań wynika, że zawartość mięsa w produktach nie została zachowana na deklarowanym poziomie. W obrazie histologicznym nie zidentyfikowano żadnych zafałszowań surowcami pochodzenia roślinnego lub innymi tkankami pochodzenia niemięsnego. Przyczyn obniżonej mięsności można doszukiwać się zatem weryfikując zadeklarowaną zawartość białka, analizując jakość surowców użytych do produkcji wyrobu, czy też zastosowany proces technologiczny. Wynika z tego, że produkt niespełniający deklaracji mięsności niekoniecznie musi być zafałszowany. Analiza produktów pod kątem zawartości części kostnych, wskazuje na podejrzenie zastosowania MOM-u, bądź potwierdza, że jest to MOM.

EN

The article presents the results of the evaluation of the quality of meat products by chemical and histological methods. The content of meat and bone parts in the products was assessed and the results of both research methods were compared. The results of the chemical and histological assessment were found to be consistent, the chemical examination confirmed the histological picture. The research shows that the meat content of the products was not maintained at the declared level. No adulterations with raw materials of plant origin or other tissues of non-meat origin were identified in the histological image. The reasons for the reduced meat content can therefore be found by verifying the declared protein content or by analyzing the quality of the raw materials used in the production of the product or the technological process used. It follows that a product that does not meet the meat content declaration does not necessarily have to be adulterated. The analysis of products in terms of the content of bone parts indicates a suspicion of the use of MDM or confirms that it is MDM.

2

Impact of low-molecule acidic peptides on growth and histological structure of inner organs of marbled crayfish Procambarus fallax (Hagen, 1870) F. virginalis

84%

Marenkov O. , Fedonenko E. , Naboka A.

International Letters of Natural Sciences

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2016

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tom 56

EN

The results of studies on the effects of low molecular weight acidic solution peptides on the growth and development of the marbled crayfish artificial cultivation.An increasing weights of juvenile freshwater crayfish under the influence of dietary supplement "Albuvir" drug. With the use of histological methods of research, found the impact of 0.01 % solution of the drug on the state of the marbled crayfish lobules of hepatopancreas and fat cells. Developed a method for growing juvenile freshwater crayfish with "Albuvir", which allows to increase the weight gain of crustaceans on 24.3–27.2 % and reduce the level of cannibalism at 20 %.

3

Hepatic tissue changes in rats due to chronic invasion of Babesia microti

84%

Okla H. , Jasik K. P. , Slodki J. , Rozwadowska B. , Slodki A. , Jurzak M. , Pierzchala E.

Folia Biologica

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2014

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tom 62

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nr 4

4

The effect of undecanones and their derivatives on tumor angiogenesis and VEGF content

67%

Gibka J. , Wasiutynski A. , Skopinska-Rozewska E. , Siwicki A. K. , Chorostowska-Wynimko J. , Sommer E. , Mazurkiewicz M. , Glinski M. , Skurzak H. , Wojcik R. , Jung L.

Polish Journal of Veterinary Sciences

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2010

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tom 13

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nr 1

105-115

EN

The in vivo effects of some derivatives of aliphatic ketones (2-undecanone, 3-undecanone, 4-undecanone and their derivatives) on L-l sarcoma tumor angiogenesis and VEGF content were studied in Balb/c mice. Mice that inhaled 10% solution of 3-undecanone(3-on) or 1% solution of 2-undecanone propylene acetal (Acpr2) for 3 days after tumor cells implantation, presented lower neovascular response measured by tumor-induced cutaneous angiogenesis test (TIA) and lower tumor VEGF content in 5-days tumors, than non-inhaled controls. Other substances presented various effects on tumor VEGF concentration and angiogenesis. Histological examination of lesions collected from mice inhaled Acpr2, or non-inhaled controls, revealed small diffused areas of necrosis in the former group. In both groups, slight to moderate inflammatory infiltrations were seen at the tumor's margin. In Acpr2 group, there were less small blood vessels at tumor's margin than in the control group.

5

Mouse model of infected wound

67%

Stepinska M. , Grzybowski J. , Struzyna J. , Olszowska M. , Jablonska H. , Chomicka M. , Chomiczewski K.

Acta Microbiologica Polonica

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1995

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tom 44

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nr 1

6

The effect of diet supplementation with beta-carotene, vitamin C and E on peroxidation processes and atherosclerosis development in the model of experimental hypercholesterolaemia

59%

Ziemlanski S. , Panczenko-Kresowska B.

Żywienie Człowieka i Metabolizm

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1995

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tom 22

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nr 1

EN

The purpose of the study was the assessment of the intensity of peroxidation processes during experimental hypercholesterolaemia and the comparison of the antioxidative action of beta-carotene with that of vitamins C and E. The experiment was cairied out on 50 guinea pigs receiving a diet containing 0.2% of cholesteroli A part of the animals received additionally beta-carotene (50 mg per 100 g of lhe diet), another part was given vitamin E (10 mg/ 100 g of the diet), vitamin C (500 mg/100 g of the diet) and beta-carotene (50 mg/ 100 g of the diet). Histological examinations of the thoracic and abdominal aorta demonstrated in hypercholesterolemia animals a significant reduction of lipid infiltrations in the group receiving supplements of these vitamins. Beta-carotene was found to inhibit the development of atherosclerotic lesion in the same degree as all three antioxidative vitajnins ailmitiislered jointly. In biochemical investigations it was shown that the administration of beta-carotene or the complex of antioxidative vitamins inhibited in the same degree the rise of TBA-IiS produced by high-cliolesterol diet. The study confirmed also a positive correlation between TBA-RS concentration an the activity of CK and CK-MB enzymes. The presence of vitamin C and E in the atherogenic diet exerted a more beneficial effect than beta-carotene on the distribution of cholesterol in HDL and LDL fractions.

7

Wplyw dlugotrwalych kapieli racic owiec w roztworch formaliny, Incozanu i Mastycydu na obraz histologiczny skory okolicy palcowej

51%

Chyczewski M. , Rotkiewicz T. , Brzeski W.

Acta Academiae Agriculturae ac Technicae Olstenensis. Veterinaria

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1996

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tom 24

231-241

PL

Zakaźna zanokcica owiec (ZZO) jest schorzeniem racic powszechnie występującym u owiec. Jedną z metod profilaktycznego postępowania są kąpiele racic. W pracy dokonano oceny stopnia wrażliwości skóry okolicy palcowej u owiec po długotrwałym stosowaniu środków do profilaktycznych kąpieli (formaliny, Incozanu i Mastycydu). Badania prowadzono na 60 owcach rasy polska długowełnista podzielonych na 2 grupy. U owiec I grupy obserwację prowadzono w warunkach klinicznych, II grupy w warunkach terenowych. U owiec obydwu grup prowadzono przez jeden rok profilaktyczne kąpiele racic w wodnych roztworach wymienionych środków z określoną częstotliwością i tych samych terminach. Badania histopatologiczne wycinków skóry szpary międzyracicowej przeprowadzono przed rozpoczęciem kąpieli oraz po 1-rocznym stosowaniu. Badania te wykazały destrukcyjne oddziaływanie formaliny na skórę okolicy racic owiec oraz niewielki stopień oddziaływania Incozanu i Mastycydu na mikroskopową strukturę skóry tej okolicy.

EN

Foot rot is sheep foot disease that occurs commonly. Footbathing is one of the ways of preventive treatment of the disease in question. The paper presents evaluation of sensivity level of skin surrounding digits after prolonged application of formalin, Incozan and Mastycyd to prophylactic footbathing. The research concerned 60 sheep divided into two groups. The sheep of group I were observed in the clinical conditions, while those of group II - in the field ones. The animals of both groups were for a year subjected to prophylactic footbathing in water solutions of the above-mentioned remedies, with a certain frequency and in the same periods of time. Histopathological analyses of sheep skin were conducted before starting footbathing and one year after it had been finished. The research showed a destructive effect of formalin on skin surrounding sheep hooves and a slight influence of Incozan and Mastycyd on microscopic structure of skin.