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Ultima descărcare din IBN: 2024-04-23 22:48 |
Căutarea după subiecte similare conform CZU |
663.1+57.08 (1) |
Microbiologie industrială. micrologie industrială. Fermentare, industrii de fermentare. Industria băuturilor. Industria stimulenților (593) |
Tehnici biologice, echipament şi metode experimentale în general (194) |
SM ISO690:2012 TOFAN, Elena, CHISELITSA, Natalia, CHISELITA, Oleg, BESHLIU, Alina, EFREMOVA, Nadejda, LOZAN (SPRINCEAN), Ana, DANILIS, Marina. Optimization of the waste processing procedure of the beer industry and obtaining lipid preparations from yeast biomass. In: Patrimoniul cultural de ieri – implicații în dezvoltarea societății durabile de mâine, Ed. 3, 11-12 februarie 2021, Chişinău. Chișinău, Republica Moldova: 2021, Ediția 3, pp. 215-217. ISSN 2558 – 894X. |
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Patrimoniul cultural de ieri – implicații în dezvoltarea societății durabile de mâine Ediția 3, 2021 |
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Conferința "Yesterday’s heritage – implications for the development of tomorrow’s sustainable society" 3, Chişinău, Moldova, 11-12 februarie 2021 | |||||||
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CZU: 663.1+57.08 | |||||||
Pag. 215-217 | |||||||
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Currently, special attention is paid to the use of industrial by-products, in particular those obtained in huge quantities in the brewing and wine, making process, as a source for the production of natural preparations with high biological value. In this study are presented results related to the recovery of beer yeast biomass from the sediments of the beer industry, by obtaining lipid extracts with valuable biochemical composition. Thus, applying the optimized autolysis method, with the use of sodium phosphate buffer at 45 ° C for the destruction of the cell wall and fractional extraction with hydric, alkaline and acidic solutions, various liquid and solid fractions were obtained from the biomass of brewer’s yeast with varied lipid content. It was established that the yeast biomass contains up to 5.3 ± 0.09 g% BAU of lipids, and in the solid fractions, remaining after consecutive water and alkaline extractions, they constitute 5.16 ± 0.04 and 5.24 ± 0 respectively. .01% BAU, which highlights the inefficiency of lipid extraction with hydric and alkaline solutions. Next, the acidic liquid and the solid fraction, insoluble in alkalis and acids, were obtained. The amount of lipids of 3,0 ± 0,04 g% BAU in the acid fraction and 1,6 ± 0,23 g% BAU in the solid fraction indicates that some of the yeast lipids can be extracted with 0,5N acid solution acetic, and some remain in the fraction insoluble in alkalis and acids. Thus, in order to optimize the waste processing process of the beer industry and the complex recovery of yeast biomass, it is reasonable to include the lipid fraction extraction stage in the technological flow, after obtaining protein and mannoprotein extracts, which will be useful and as an additional step of purification of the β-glucan fraction |
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<meta name="citation_title" content="Optimization of the waste processing procedure of the beer industry and obtaining lipid preparations from yeast biomass"> <meta name="citation_author" content="Tofan Elena"> <meta name="citation_author" content="Chiselitsa Natalia"> <meta name="citation_author" content="Chiselita Oleg"> <meta name="citation_author" content="Beshliu Alina"> <meta name="citation_author" content="Efremova Nadejda"> <meta name="citation_author" content="Lozan (Sprincean) Ana"> <meta name="citation_author" content="Danilis Marina"> <meta name="citation_publication_date" content="2021"> <meta name="citation_collection_title" content="Patrimoniul cultural de ieri – implicații în dezvoltarea societății durabile de mâine"> <meta name="citation_volume" content="Ediția 3"> <meta name="citation_firstpage" content="215"> <meta name="citation_lastpage" content="217"> <meta name="citation_pdf_url" content="https://ibn.idsi.md/sites/default/files/imag_file/p-108-109.pdf">