| Title | Peptide-rich extracts from spent yeast waste streams as a source of bioactive compounds for the nutraceutical market |
|---|---|
| ID_Doc | 8058 |
| Authors | Oliveira, AS; Pereira, JO; Ferreira, C; Faustino, M; Durao, J; Pintado, ME; Carvalho, AP |
| Title | Peptide-rich extracts from spent yeast waste streams as a source of bioactive compounds for the nutraceutical market |
| Year | 2022 |
| Published | |
| Abstract | Spent yeast is one of the main fermentation process by-products and several bioactive ingredients have been extracted from it, such as mannans and 8-glucans. These extraction processes generate waste streams rich in protein, that can still be used to produce peptide-rich extracts. This work describes the use of a scalable and low-cost process to obtain yeast peptide extracts in a circular economy concept. Peptide fractions produced contained 48.3 to 86.4% of protein (w/w) and essential amino acids amounts higher than those defined by FAO and WHO references. Regarding their bioactive properties, extracts exhibited strong antihypertensive and antioxidant ac-tivities. Furthermore, an inhibition of 62.0-71.3% in HMG-CoA reductase was observed, a feature hereby described for the first time, thus stating the cholesterol-lowering capacity of yeast peptides. In conclusion, due to their combined nutritional and bioactive characteristics, the produced yeast peptide extracts are good candidates for dietary supplementation and functional foods. |
| https://repositorio.ucp.pt/bitstream/10400.14/37559/1/42361621.pdf |
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