期刊
FOOD CHEMISTRY
卷 209, 期 -, 页码 27-36出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2016.04.016
关键词
Solid-state fermentation; Aspergillus niger; Rhizopus oligosporus; Plum by-products; Polyphenols; Antioxidant activity; Lipids
资金
- Romanian National Authority for Scientific Research and Innovation, CNCS-UEFISCDI [PN-II-RU-TE-2014-4-1255]
Evolutions of phenolic contents and antioxidant activities during solid-state fermentation (SSF) of plum pomaces (from the juice industry) and brandy distillery wastes with Aspergillus niger and Rhizopus oligosporus were investigated. The effect of fermentation time on the oil content and major lipid classes in the plum kernels was also studied. Results showed that total phenolic (TP) amounts increased by over 30% for SSF with Rhizopus oligosporus and by >21% for SSF with A. niger. The total flavonoid contents presented similar tendencies to those of the TPs. The free radical scavenging activities of methanolic extracts were also significantly enhanced. The HPLC-MS analysis showed that quercetin-3-glucoside was the major phenolic compound in both fermented plum by-products. The results also demonstrated that SSF not only helped to achieve higher lipid recovery from plum kernels, but also resulted in oils with better quality attributes (high sterol ester and n-3 PUFA-rich polar lipid contents). (C) 2016 Elsevier Ltd. All rights reserved.
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