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1

Glikolipidy jako alternatywne surowce dla zrównoważonych środowiskowo preparatów do automatycznego mycia naczyń

Lisowski Damian, Sikora Elżbieta

Przemysł Chemiczny

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2024

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T. 103, nr 7

786--790

PL

Przedstawiono przegląd literaturowy dotyczący glikolipidów jako al ternatywnych surowców do zastosowania w zrównoważonych środo wiskowo preparatach do automatycznego mycia naczyń. W ostatnim czasie ramnolipidy i soforolipidy, jako klasa surfaktantów otrzymywanych w procesach biotechnologicznych, cieszą się rosnącym zainte resowaniem w branży detergentowej. Przedstawiono charakterystyki związków oraz podano ich kluczowe właściwości. Szczególną uwagę zwrócono na korzyści wynikające ze stosowania biosurfaktantów w produktach chemii gospodarczej.

EN

A review, with 57 refs., of the use of rhamnolipids and sophorolipids as surfactants of microbial origin in dishwashing preparations. The struc ture of these compds. was presented and their phys. chem. properties were characterized. The benefits of using biosurfactants in automatic dishwasher products in terms of environmental sustainability were discussed.

2

A review of the application of nanoparticles as collectors in ion flotation

Sobouti Arash, Rezai Bahram, Hoseinian Fatemeh Sadat

Physicochemical Problems of Mineral Processing

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2023

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Vol. 59, iss. 6

art. no. 176040

EN

Ion flotation is one of the most promising and unique methods for reducing or removing toxic heavy metal ions, organic pollutants, or inorganic anions and cations from mining and metallurgical wastewater. It is a cost-effective and convenient method. In ion flotation, surface-active ions are removed from aqueous solutions by adding surfactants. Therefore, the main purpose of this review article was to summarize the application of various surfactants (nanoparticle surfactants, chemical synthetic surfactants, and biosurfactants) used in ion flotation. Then, the advantages, disadvantages, and prospects of surfactants were comprehensively discussed. Recent progress regarding nanoparticle surfactants in ion flotation and the mechanism of colligends binding with nanoparticles were evaluated.

3

Biosurfactant Produced by Indigenous Bacteria During Composting Process of Crude Oil Polluted Soil: Properties and Role

Sari Gina Lova, Trihadiningrum Yulinah, Ni'matuzahroh, Putra Suhendra Amka, Kasasiah Ahsanal, Alim Muhammad Syahirul

Journal of Ecological Engineering

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2022

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Vol. 23, nr 4

297--314

EN

Bacterial co-metabolism in composting process has been widely used to remove hydrocarbons, aided by in-situ production of bio-based surfactants, in terms of compost humic acid-like substances and biosurfactants. The properties of compost humic acid-like substances have been shown in previous studies as potential surface tension reducers and emulsifiers for hydrocarbons. The current study aimed to analyze the properties of biosurfactant of surface tension decrease, emulsification activity, and hydrocarbon solubilization ability. Four indigenous bacteria consortia were isolated from composted materials of yard waste, rumen residue, crude oil-polluted soil, and the mixture of polluted soil with organic waste (1:1, w/w) at day 0th, 20th, 40th, and 60th. Organic waste consists of yard waste and rumen residue in the ratio of 1:1. The isolated indigenous bacteria consortia were incubated for 7 days in different media, i.e., organic waste extract, 6.00% of crude oil, and a mixture of organic waste extract with 6.00% crude oil. The results indicated that the surface tension decrease and emulsification activity of biosurfactants were 8.35–52.90 mN m-1 and 0.00–12.00%, respectively, which showed the potential as surface tension reducers with low emulsification activity. The higher hydrocarbon solubility was shown by the biosurfactant from the rumen residue (13 620 µg g-1) and the mixture (10 998 µg g-1) at day 40th, which was comparable to 1.50% of Tween 80. The biosurfactants in the current research were produced with the same materials, process, and time as compost humic acid-like substances which acts as in-situ bio-based surfactants. The respective ability to solubilize hydrocarbon might be combined and estimated to be higher than Tween 80 of 24 329 µg g-1 and 21 619 µg g-1 for rumen residue and the mixture, respectively. Therefore, it was concluded that the best composition for in-situ bio-based surfactant production to assist the degradation of hydrocarbon through composting process is polluted soil with organic waste (1:1, w/w). The solubility of hydrocarbons can be increased without synthetic surfactants addition, but through providing nutrients to maintain in-situ bio-based surfactant production with intermittent addition of organic waste every 40 days. This method is expected to be an appropriate approach in composting development as a cost-effective sustainable bioremediation technique for polluted soil.

4

Bioremediation Possibilities of Oil-Contaminated Soil by Biosurfactant Based on Bacillus Strain

Nedoroda Vladyslav, Trokhymenko Ganna, Magas Nataliya

Journal of Ecological Engineering

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2022

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Vol. 23, nr 8

49--55

EN

This paper represents the results of the investigation of soil phytotoxicity with a high level of oil pollution. The artificially contaminated soils were exposed to an oil-destroying biosurfactant based on the strains of Bacillus amyloliquefaciens and Bacillus subtilis. The main objective of the work was to evaluate the effectiveness of a consortium of microorganisms in reducing the phytotoxicity of soils with high levels of oil contamination. The determination was performed on the reactions of test organisms to the pollution of the soil environment. The test system in the experiment comprised Sorghum bicolor subsp. Drummondii, Phleum pretense, Galéga officinális, Trifolium pretense, Medicágo sativa, and Sinapis arvensis. The variety of the applied indicator plants has provided a comprehensive analysis of the results of oil destruction and allowed an assessment of the sensitivity of the seeds of each species to toxic substances.

5

Analysis of Petroleum Biodegradation by a Bacterial Consortium of Bacillus amyloliquefaciens ssp. Plantarum and Bacillus subtilis

Nedoroda Vladyslav, Trokhymenko Ganna, Khrapko Taras, Koliehova Anastasiia

Journal of Ecological Engineering

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2021

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Vol. 22, nr 11

36--42

EN

Features of change of phytotoxic influence of the soil polluted with oil at the use of a complex biological product based on strains of microorganisms Bacillus amyloliquefaciens subsp. plantarum NSh-2 and Bacillus subtilis NSh-4 in the laboratory were investigated. The level of destruction of petroleum hydrocarbons at different combinations of pollutant and biological product concentrations was determined, as well as in the absence of oil pollution to ensure the assessment of the biological product’s impact on the environment. Soil phytotoxicity was assessed by the method of biotesting using radish seeds of the Sora variety by the ratio of seedling height and the obtained mass of organic matter.

6

Evaluation of the possibility of phytostabilization of post-flotation tailing ponds

Krawczyńska M., Kołwzan B., Gediga K., Dziubek A. M., Grabas K., Karpenko E.

Environment Protection Engineering

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2015

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Vol. 41, nr 1

157--167

EN

The effect of organic fertilization and microbiological preparations for phytostabilization of copper ore tailings were examined. It has been shown that the introduction of the pulp, waste from the sugar industry, leads to the mobilization of trace metals. The copper content in aqueous extract of enriched waste was greater than 500-fold higher than in controls. It has also been stated an increase in the toxicity of extracts. While the use of biopreparations for seed treatment contributed to the stimulation of nutrients uptake by plants. In the biomass of plants from treated seeds with a suspension of Azotobacter strain EK, and biosurfactant was found more phosphorus and calcium than in plants from control.

7

Green synthesis and characterization of cuprous oxide nanoparticles in presence of a bio-surfactant

Behera M, Giri G

Materials Science Poland

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2014

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Vol. 32, No. 4

702--708

EN

Herein, we report a facile green synthesis of Cu2O nanoparticles (NPs) using copper sulfate as precursor salt and hydrazine hydrate as reducing agent in presence of bio-surfactant (i.e. leaves extract of arka – a perennial shrub) at 60 to 70 °C in an aqueous medium. A broad band centered at 460 nm in absorption spectrum reveals the formation of surfactant stabilized Cu2O NPs. X-ray diffraction pattern of the surfactant stabilized NPs suggests the formation of only Cu2O phase in assistance of a bio-surfactant with the crystallite size of ∼8 nm. A negative zeta potential of −12 mV at 8.0 pH in surfactant stabilized Cu2O NPs hints non-bonding electron transfer from O-atom of saponin to the surface of NP. Red-shift in the vibrational band (Cu–O stretching) of Cu2O from 637 cm−1to 640 cm−1 in presence of bio-surfactant suggests an interfacial interaction between NPs and O-atoms of –OH groups of saponin present in the plant (i.e. Calotropis gigantea) extract. From X-ray photoelectron spectroscopy spectra, a decrease in binding energy of both 2p3/2and 2p1/2 bands in Cu2O with saponin molecules as compared to bulk Cu atom reveals a charge transfer interaction between NP and saponin surfactant molecules. Transmission electron microscopy images show crystalline nature of Cu2O NPs with an fcc lattice.

8

Wpływ biosurfaktanta Reco 10 na morfologię kłaczków osadu czynnego

Złotucha M., Rożej A., Łagód G.

Proceedings of ECOpole

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2012

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Vol. 6, No. 2

811--816

PL

Końcowy efekt oczyszczania biologicznego ścieków w znacznej mierze zależy od skuteczności oddzielania osadu czynnego od oczyszczonych ścieków. Właściwości sedymentacyjne osadu czynnego związane z wielkością, kształtem i gęstością kłaczków mogą ulec pogorszeniu w wyniku nadmiernego rozrostu bakterii nitkowatych lub kumulacji zewnątrzkomórkowych polimerów o znacznym uwodnieniu. W poszukiwaniu działającego wybiórczo i bezpiecznego dla środowiska środka redukującego liczebność organizmów nitkowatych przebadano wpływ biosurfaktanta Reco 10 na morfologię osadu czynnego. Bezpośrednio po wprowadzeniu roztworów biopreparatu do zawiesiny osadu czynnego nie wystąpiły zmiany w indeksie objętościowym osadu. Jednak po 24 godzinach inkubacji liczebność bakterii nitkowatych w kłaczkach osadu czynnego zmniejszyła się w porównaniu z kontrolą o 39 do 67% w zależności od stężenia środka powierzchniowo czynnego. Przy stężeniach 20 i 50 mg dm–3 biopreparatu obserwowano prawie 20% spadek aktywności oddechowej osadu mierzonej na podstawie ilości wydzielonego CO2. Mimo tego hamującego aktywność oddechową działania, po 24 godzinach od dodania Reco 10 morfologia osadu czynnego uległa wyraźnej poprawie. Zaobserwowano poprawę spójności kłaczków, wzrost ich gęstości i regularności kształtów, mimo zmniejszenia średnich rozmiarów skupisk nawet o odpowiednio 21 i 17% nie doszło również do zaniku mikrofauny.

EN

The final effect of biological treatment plant operation depends on the separation efficiency of the activated sludge from treated wastewater. Sludge sedimentation properties related to size, shape and density of flocs, may be deteriorated as a result of excessive growth of filamentous bacteria or accumulation of hydrated extracellular polymers. In search of selectively and environmentally safe substances able to reduce the size of filamentous organisms the impact of biosurfactant Reco 10 on the morphology of activated sludge was examined. Immediately after application of surfactant into the activated sludge suspension, there were no changes in the index of sludge volume. However, after 24 hours of incubation, the number of filamentous bacteria per activated sludge flock decreased by 39 to 67% depending on the surfactant concentration. At concentrations 20 and 50 mg · dm–3 of Reco 10 almost 20% inhibition of respiration calculated on the base of the increase of CO2 concentration was observed. Nevertheless after 24 hours of incubation with 10 Reco the activated sludge morphology (the increase of cohesion, density and regularity of flocs shape) has been significantly improved, despite a reduction in medium-sized clusters of up to 21 and 17%. No losses of microfauna (protozoa and rotifers) were observed. The results confirm that it is possible to use biodegradable surfactant to improve the structure of activated sludge.

9

Flotation of serpentinite and quartz using biosurfactants

Didyk A. M., Sadowski Z.

Physicochemical Problems of Mineral Processing

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2012

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Vol. 48, iss. 2

607-618

EN

Biosurfactants produced by Bacillus circulans and Streptomyces sp. were used for biomodification of both serpentinite and quartz surfaces. The biosurfactants produced by bacteria possess the ability to decrease the surface tension of water from 72 to 28.6 mNm-1 (Bacillus circulans) and to 29.3 mNm-1 (Streptomyces sp.). This paper demonstrated biomodification of quartz and serpentinite surfaces by the biosurfactants adsorption. The effect of biosurfactants adsorption onto mineral surface properties was investigated by microflotation. Additionally, IR-ATR spectroscopy was used for characterisation of the biomodificated surfaces of quartz and serpentinite. Flotation experiments indicated that these biosurfactants effectively changed the properties of mineral surfaces and the separation of minerals can be realized.

10

Agroindustrial wastes as unconventional substrates for growing of bacillus strains and production of biosurfactant

Płaza G. A., Pacwa-Płociniczak M., Piotrowska-Seget Z., Jangid K., Wilk K. A.

Environment Protection Engineering

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2011

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Vol. 37, nr 3

63-71

EN

The study was aimed at the development of economical methods for biosurfactant production by the use of unconventional substrates. The research investigated the potential of utilising agroindustrial wastes to replace synthetic media for cultivation of Bacillus strains and biosurfactant production. In total, 21 of the waste products from dairy, sugar, fatty, and fruit and vegetable processing industries, breweries, distillery were examined. Three bacterial strains were identified by 16S rRNA gene sequencing: Bacillus subtilis (I'-1a), Bacillus sp. (T-1), Bacillus sp. (T'-1). Biosurfactant production was examined in an indirect way by measuring of surface tension (ST), blood agar lysis, oil spreading and drop collapsing tests. The best unconventional substrates for bacteria growing and biosurfactant production at 30 °C under aerobic conditions were molasses, brewery effluents, and fruit and vegetable decoction from the processing factory.

11

The effect of medium composition on the production of sophorolipids and the tensiometric properties by Starmerella bombicola MTCC 1910

Vedaraman N., Venkates N.

Polish Journal of Chemical Technology

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2010

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Vol. 12, nr 2

9-13

EN

Starmerella bombicola a teleomorph of Candida bombicola is capable of producing extracellular secondary metabolites known as sophorolipids. In the present work the performance of Starmerella in producing sophorolipids, with standard medium ingredients glucose, sunflower oil, yeast extract and urea was studied. The quantities of different medium ingredients were optimized to maximize the production of sophorolipids. Variation in tensiometric properties like surface tension and interfacial tension during the incubation period were also reported. The optimized mixed substrate composition was found to be 200 g/l, containing equal amounts of glucose and sunflower oil, 4 g/l of yeast extract and 0.6 g/l of urea. With the optimized substrate composition 38.6 g/l of sophorolipids was obtained. The minimum surface tension produced by the culture free cell broth was 36.2 mN/m. Increasing the temperature from 25oC to 35° C has shown adverse effects on sophorolipids production.

12

Wpływ wielościennych nanorurek węglowych na wzrost bakterii z rodzaju Bacillus i produkcję biosurfaktantów

Płaza G., Kowalska E., Radomska J., Czerwosz E., Jangid K., Gawior K., Ulfig K., Janda-Ulfig K.

Ochrona Środowiska

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2009

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Vol. 31, nr 1

21-24

PL

Celem badań była ocena wzrostu oraz zdolności do produkcji biosurfaktantów trzech szczepów bakterii z rodzaju Bacillus hodowanych w obecności wielościennych nanorurek węglowych. W wyniku badań stwierdzono, że bakterie te bardzo dobrze rosły w obecności nanorurek węglowych oraz produkowały biosurfaktanty. Wytworzone przez bakterie biosurfaktanty powodowały dyspersję nanorurek węglowych w hodowlach płynnych. Wielościenne nanorurki węglowe nie wpływały na morfologię i wzrost bakterii, stymulowały jednak tworzenie przetrwalników. Badania obejmowały również ocenę właściwości produkowanych biosurfaktantów przez bakterie rosnące w obecności nanorurek węglowych, tj. napięcia powierzchniowego, zdolności emulgujących i pieniących. Nie stwierdzono wpływu badanych nanorurek węglowych na właściwości powierzchniowe biosurfaktantów produkowanych przez te bakterie. Biosurfaktanty zmniejszały napięcie powierzchniowe, miały zdolności emulgujące w stosunku do wybranych substancji/mieszanin hydrofobowych oraz zdolności pieniące porównywalne z próbką kontrolną.

EN

Three bacterial strains of the genus Bacillus were tested in order to ascertain how the presence of nanotubes in the culture medium influenced their growth, as well as their ability to produce biosurfactants. It was found that the bacteria grew very well in the presence of the nanotubes, and that they were capable of producing biosurfactants. The biosurfactants synthesized by the bacteria accounted for the dispersion of the carbon nanotubes in liquid cultures. Although the multiwalled carbon nanotubes did not affect the morphology or the growth of the bacteria, they were found to stimulate endospore production. The objective of the study was also to assess the properties of the biosurfactants produced by the bacteria growing in the presence of the carbon nanotubes, i.e. surface tension, emulsification and foamability. The nanotubes examined were found to exert no influence on the surface activity of the biosurfactants produced by the bacteria. The biosurfactants reduced surface tension, showed emulsifying properties towards some hydrophobic substances/mixtures, and displayed foamabilities comparable to those of the control.

13

The effect of surcfactants adsorption on the hindered ettling of magnesite solid waste

Bastrzyk A., Polowczyk I., Sadowski Z.

Physicochemical Problems of Mineral Processing

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2005

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Vol. 39

211-218

EN

Settling process is used to separate solid particles from water suspension. Many factors, like the presence of chemical compounds, affect this process. In this paper, the effect of surfactants addition on the settling velocity of magnesite solid waste was investigated. The studies were conducted in the presence of a natural surfactant (rhamnolipid from Jeneil Biosurfactant Co), cell culture filtrate of Pseudonwnas aeruginosa, and a chemical surfactant (sodium dodecyi sulphate (SDS)). The addition of these compounds caused destabilization of the investigated suspension. A particle size increase and rapid sedimentation were observed. It was noted that the addition of biosurfactant caused a faster settling velocity in comparison to the SDS addition.

PL

Proces kolektywnej (gromadnej) sedymentacji został wykorzystany do badania wpływu surfaktantu i biosurfaktantu na stopień agregacji drobnych ziaren odpadów magnezytowych. W badaniach został użyty płyn po hodowli mikroorganizmu Pseiidomonas aeruginosa oraz odczynnik dostarczony przez firmę Jeneił Biosurfactant Company JBR599. Oba produkty zawierają ramnolipid, będący biosurfaktantem. Dla porównania, część prac przeprowadzono z syntetycznym surfaktantem (dodecylosiarczan sodu - SDS). Badania przeprowadzono używając wodnej zawiesiny odpadów magnezytowych (frakcja -45 pm). Doświadczenia sedymentacyjne były przeprowadzone w szklanych cylindrach sedymentacyjnych, przy użyciu których określano prędkość przesuwania granicy supernatant/zawiesina. Do badania struktury przestrzennej osadu użyto metody ssania kapilarnego (CST). Otrzymane wyniki świadczą, że dodanie biosurfaktantu powodowało przyspieszenie sedymentacji i wzrost wysokości osadu. Ustalono, że małe wartości czasu ssania kapilarnego były odwrotnie proporcjonalne do ilości dodanego surfaktantu.