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A comparative evaluation of the structure, functionality and volatile profiles of Trichosanthes kirilowii seed protein isolates based on different extraction methods

文献类型: 外文期刊

作者: Peng, Dong 1 ; He, Zhilin 1 ; Pan, Xiangmin 1 ; Zheng, Rui 1 ; Bao, Hanxiao 1 ; Liao, Jingru 1 ; Dong, Ling 2 ; Li, Weiwen 2 ; Chen, Jianping 3 ; Li, Pan 1 ; Du, Bing 1 ;

作者机构: 1.South China Agr Univ, Coll Food Sci, Guangzhou 510642, Peoples R China

2.Anhui Acad Agr Sci, Inst Hort, Hefei 230031, Peoples R China

3.Univ Hong Kong, Sch Chinese Med, Hong Kong 999077, Peoples R China

关键词: Trichosanthes kirilowii seed protein isolate; Extraction methods; Structure; Functional properties; Volatile profiles

期刊名称:FOOD CHEMISTRY ( 影响因子:8.8; 五年影响因子:8.6 )

ISSN: 0308-8146

年卷期: 2024 年 443 卷

页码:

收录情况: SCI

摘要: In the present study, we hypothesised that Trichosanthes kirilowii seed protein isolate (TPI) obtained by different extraction methods have distinct structure, functional attributes and volatile profiles. Alkaline-extracted isolate (AE-TPI) exhibited lower protein content and a darker colour than the other two isolates because more polyphenols and pigments were coextracted. Salt-extracted isolate (SE-TPI) and AE-TPI had higher in vitro protein digestibility than reverse micelle-extracted isolate (RME-TPI) due to higher degrees of denaturation, which enabled them to be more susceptible to proteolysis. The SE-TPI gel resulted in a stronger gel network and greater hardness than the other two isolate gels. In the volatile profile, SE-TPI (22) yielded the largest number of volatile compounds, followed by AE-TPI (20) and RME-TPI (15). The current results indicated that the structure, functional properties and volatile profiles of TPI are largely influenced by the extraction technique.

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