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Title: | Recovery of Residual Brewer’s Yeast by Electroactivation | Authors: | TARNA, Ruslan VRABIE, Elvira PALADII, Irina STURZA, Rodica |
Keywords: | Brewer’s Yeast;Electroactivation;Redox Potential;Protein Concentrates;Protein Hydrolysates;Calcium | Issue Date: | 2021 | Publisher: | Scientific Research | Source: | Tarna, R. , Vrabie, E. , Paladii, I. and Sturza, R. (2021) Recovery of Residual Brewer’s Yeast by Electroactivation. Food and Nutrition Sciences, 12, 1177-1190. doi: 10.4236/fns.2021.1212086. | Project: | 2soft/1.2/83. INTELLIGENT VALORISATION OF AGRO-FOOD INDUSTRIAL WASTES 21.00208.8007.07/PD. Valorificarea deșeurilor din Industria Berii |
Journal: | Food and Nutrition Sciences | Abstract: | Yeasts resulting from the brewing process (RBY) are a valuable by-product, with an important content of minerals, vitamins and, especially, proteins. The purpose of the research was the electroactivation of RBY and the simultaneous obtaining of two products—protein concentrates and hydrolyzed protein from residual brewer’s yeast. Electroactivation is a non-residual process, without the use of chemical reagents and relatively inexpensive. The variation of the electroactivation conditions allowed the separation of 90% - 94% of the proteins in the form of protein concentrates. During the process, it is attested to increase the pH value and decrease the redox potential, which characterizes the multiple redox processes that take place in the cathode cell, including sedimentation at the isoelectric point. The presence of albumin in the protein fractions of RBY allows the formation of protein complexes with calcium, attributing a higher biological value to the obtained products. |
Description: | Vol.12 No.12, December 2021, pp. 1177-1190 |
URI: | http://cris.utm.md/handle/5014/1043 | DOI: | 10.4236/fns.2021.1212086 |
Appears in Collections: | Journal Articles |
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fns_2021120714531976.pdf | 2.92 MB | Adobe PDF | View/Open |
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