Effects of maltodextrin and protein hydrolysate extracted from lotus seed peel powder on the fat substitution and lipid oxidation of lotus seed paste

Autor: Na Deng, Zhao Li, Hui Li, Yongjian Cai, Changzhu Li, Zhihong Xiao, Bo Zhang, Miao Liu, Fang Fang, Jianhui Wang
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Food Chemistry: X, Vol 20, Iss , Pp 100967- (2023)
Druh dokumentu: article
ISSN: 2590-1575
DOI: 10.1016/j.fochx.2023.100967
Popis: The fat substitution of maltodextrin from lotus seed peel powder (LSP-MD) and the lipid oxidation inhibitory effect of protein hydrolysate (LSP-PH) on lotus seed paste were investigated in this study. The LSP-MD with a dextrose equivalent value of 2.28 showed the smallest specific volume, strongest water-holding capacity and retrogradation. This LSP-MD effectively maintained the sensory quality, hardness and elasticity of low-fat lotus seed paste during storage at 25 °C. For protein hydrolysate, LSP-PH with a hydrolyzation degree of 13.45 % had the strongest DPPH· scavenging capacity and ferric reducing antioxidant power, which was further confirmed by FTIR spectra that enzymatic hydrolysis of LSP protein could facilitate the transformation of β-sheet into β-turn. Following 15 days of storage, supplementation with 0.5 % LSP-PH reduced the peroxide value and acid value of lotus seed paste, suggesting its excellent inhibitory effect on lipid peroxidation via interacting with hydrophobic polyunsaturated fatty acids.
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