Effect of Banana Flower Extract on Protein Oxidation in Naturally Fermented Yak Meat Sausage

被引：0
|
作者：
Zhao J. [1 ]
Tang S. [1 ]
Li S. [1 ]
Chen L. [1 ]
Li Q. [1 ]
机构：
[1] College of Food Science and Engineering, Southwest Minzu University, Chengdu
来源：
Shipin Kexue/Food Science | 2023年 / 44卷 / 10期
关键词：
banana flower extract; fermented sausage; protein oxidation; yak meat;
D O I：
10.7506/spkx1002-6630-20220804-045
中图分类号：
学科分类号：
摘要：
The effects of adding different levels (0.01%, 0.05% and 0.10%) of banana flower extract (BFE) versus dibutylated hydroxy toluene (BHT) on protein oxidation in naturally fermented yak meat sausages were investigated. lys The carbonyl content, Schiff base content, total sulfhydryl content, active sulfhydryl content, surface hydrophobicity, dimeric tyrosine content, endogenous fluorescence intensity and solubility of myofibrillar proteins (MPs) from fermented yak meat sausage were measured at different fermentation times, and the secondary structure and composition of MPs were characterized by Fourier transform infrared (FTIR) spectroscopy, and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). The results showed that compared with the blank control, the addition of BFE decreased the carbonyl group content, Schiff base content, surface hydrophobicity, dimeric tyrosine content and endogenous tryptophan fluorescence intensity of MPs, and increased the total sulfhydryl group content, active sulfhydryl group content and solubility. FTIR spectroscopy showed that the addition of BFE improved the reveal the more stability of the secondary structure of MPs. SDS-PAGE showed that BFE reduced the diffusion of myosin heavy chain and had a protective effect on myosin. This study showed that BFE inhibited protein oxidation in naturally fermented yak sausage, and this effect was positively correlated with BFE concentration, being most pronounced at 0.10% BFE concentration. © 2023 Chinese Chamber of Commerce. All rights reserved.
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页码：90 / 99
页数：9
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