Surfactants in biorefineries: Role, challenges &amp; perspectives

Sánchez-Muñoz, Salvador; Balbino, Thércia Rocha; Alba, Edith Mier; Barbosa, Fernanda Gonçalves; Pier, Fernando Tonet de; Almeida, Alexandra Lazuroz Moura de; Zilla, Ana Helena Balan; Antunes, Felipe Antônio Fernandes; Hilares, Ruly Terán; Balagurusamy, Nagamani; Santos, Júlio César dos; Silva, Sílvio Silvério da

doi:10.1016/j.biortech.2021.126477

Cited by 34 publications

(7 citation statements)

References 124 publications

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“…coli as positive and negative strains, respectively. The action of surfactants on cells is dependent on their adsorption/insert efficiency as well as their hydrophobic property, which is conducive to altering the rearrangement ability of a cell membrane . Hence, cell hydrophobicity, which can reveal the above actions, was evaluated after various treatment procedures.…”

Section: Resultsmentioning

confidence: 99%

Preparing Biosurfactant Glucolipids from Crude Sophorolipids via Chemical Modifications and Their Potential Application in the Food Industry

Cui

Tang

Zhao

et al. 2023

J. Agric. Food Chem.

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This investigation developed a novel strategy for efficiently preparing glucolipids (GLs) by chemically modifying crude sophorolipids. Running this strategy, crude sophorolipids were effectively transformed into GLs through deglycosylation and de-esterification, with a yield of 54.1%. The acquired GLs were then purified via stepwise extractions, and 66.2% of GLs with 95% purity was recovered. GLs are more hydrophobic and present a stronger surface activity than acidic sophorolipids (ASLs). More importantly, these GLs displayed a superior antimicrobial activity to that of ASLs against the tested Gram-positive food pathogens, with a minimum inhibitory concentration of 32–64 mg/L, except against E. coli . This activity of GLs is pH-dependent and especially more powerful under acidic conditions. The mechanism involved is possibly associated with the more efficient adsorption of GLs, as demonstrated by the hydrophobicity of the cell membrane. These GLs could be used as antimicrobial agents for food preservation and health in the food industry.

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Section: Resultsmentioning

confidence: 99%

Preparing Biosurfactant Glucolipids from Crude Sophorolipids via Chemical Modifications and Their Potential Application in the Food Industry

Cui

Tang

Zhao

et al. 2023

J. Agric. Food Chem.

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“…It is evident that the amount of animal parts that remain completely unused is incredibly high. These scraps are usually referred to as biomasses and they are often used in industry, with roles that vary from energy production, in the forms of biofuels and biopower sources, to the synthesis of new chemical entities or the upgrade of already existent synthetic ways (bioproducts) [ 2 , 3 , 4 ]. Biomasses are not considered food per se, but many of them derive from food-related macro-organisms.…”

Section: Introductionmentioning

confidence: 99%

Fractioning and Compared 1H NMR and GC-MS Analyses of Lanolin Acid Components

et al. 2023

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The management of food and food-related wastes represents a growing global issue, as they are hard to recycle and dispose of. Foremost, waste can serve as an important source of biomasses. Particularly, fat-enriched biomasses are receiving more and more attention for their role in the manufacturing of biofuels. Nonetheless, many biomasses have been set aside over the years. Wool wax, also known as lanolin, has a huge potential for becoming a source of typical and atypical fatty acids. The main aim of this work was to evaluate and assess a protocol for the fractioning of fatty acids from lanolin, a natural by-product of the shearing of sheep, alongside the design of a new and rapid quantitative GC-MS method for the derivatization of free fatty acids in fat mixtures, using MethElute™. As the acid portion of lanolin is characterized by the presence of both aliphatic and hydroxylated fatty acids, we also evaluated a procedure for the parting of these two species, by using NMR spectroscopy, benefitting of the different solubilities of the components in organic solvents. At last, we evaluated and quantified the fatty acids and the α-hydroxy fatty acids present in each attained portion, employing both analytical and synthetic standards. The performed analyses, both qualitative and quantitative, showed a good performance in the parting of the different acid components, and GC-MS allowed to speculate that the majority of α-hydroxylated fatty acids is formed of linear saturated carbon chains, while the totality of properly said fatty acids has a much more complex profile.

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“…As a result, ethanol production was achieved under severe conditions. In addition, Tween 80 was reported to be an effective nonionic supernatant to improve fermentation efficiency, which boosted the secretion of intracellular products via the mechanisms of membrane reorganization, the formation of membrane and trans-membrane pores, and metabolic alteration. , …”

Section: Introductionmentioning

confidence: 99%

Consolidate Processing for Improvement of Ethanol Production from Food Waste

Ling,

Wang,

Leng

et al. 2023

Energy Fuels

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To improve the performance of ethanol production from food waste, a consolidation process involving both the addition of surfactant and cell immobilization was investigated. Results showed that the optimum glucose concentration was 200 g/L for ethanol fermentation using Saccharomyces cerevisiae as inoculum. With the addition of 0.5% Tween 80, the ethanol production was improved from 68.1 to 79.8 g/L, which was attributed to the increased mass transfer of cells provoked by Tween 80. In a cell-immobilized system, wheat straw was used as the matrix to carry the cells. A high ethanol production of 87.8 g/L was obtained with the sequential fermentation mode due to the high cell density on the cell carrier. The results of a mass balance calculation revealed that the ethanol production of food waste achieved 340.4 kg/t (on a dry basis), which provided an insight that food waste was a suitable substrate for ethanol production. The main cost was spent on energy consumption in the processes of food waste sterilization, hydrolysis, fermentation, and ethanol distillation, and measures for reducing the energy were suggested to improve the economic performance of ethanol production.

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Surfactants in biorefineries: Role, challenges & perspectives

Cited by 34 publications

References 124 publications

Preparing Biosurfactant Glucolipids from Crude Sophorolipids via Chemical Modifications and Their Potential Application in the Food Industry

Preparing Biosurfactant Glucolipids from Crude Sophorolipids via Chemical Modifications and Their Potential Application in the Food Industry

Fractioning and Compared 1H NMR and GC-MS Analyses of Lanolin Acid Components

Consolidate Processing for Improvement of Ethanol Production from Food Waste

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