Sulfonated cottonseed hydrolysates with adjustable amphiphilicity as environmental -Stress stable emulsifiers
文献类型： 外文期刊
作者： Frempong, Kwame Eduam Baiden 1 ; He, Guiqiang 1 ; Kuang, Meng 2 ; Xue, Min 3 ; Wang, Jie 3 ; Wei, Yanxia 1 ; Zhou, Jian 1 ;
作者机构： 1.Southwest Univ Sci & Technol, Engn Res Ctr Biomass Mat, Sch Life Sci & Engn, Minist Educ, Mianyang 621010, Sichuan, Peoples R China
2.Chinese Acad Agr Sci, Inst Cotton Res, Natl Key Lab Cotton Biobreeding & Integrated Utili, Anyang 455000, Henan, Peoples R China
3.Chinese Acad Agr Sci, Inst Feed Res, Beijing 100081, Peoples R China
关键词： Sulfonation; Cottonseed protein isolate; Nano-emulsion; Amphiphilicity
期刊名称：FOOD CHEMISTRY （ 影响因子：8.5； 五年影响因子：8.2 ）
ISSN： 0308-8146
年卷期： 2024 年 454 卷
页码：
收录情况： SCI
摘要： Cottonseed protein isolate (CPI) is a valuable agro-industrial waste with potential biotechnological applications. However, inadequate stability in water due to its characteristic hinders its widespread use. Therefore, a new sulfonation modification approach was developed to improve the amphiphilicity and structural flexibility of CPI. Structural characterizations confirmed the successful incorporation of sulfonate groups with structural and conformational changes. This significantly unfolded molecular-chain, and improved amphiphilicity, flexibility, and surface-hydrophobicity while reducing pI (5.1-1.7), and molecular-weight (5745-2089 g/mol). The modified samples exhibited improved emulsification with higher amounts of absorbed proteins on the droplet interface, smaller droplet size, and a higher zeta-potential. Additionally, they possessed good emulsification ability under acidic conditions. The nano-emulsions exhibited long-term stability (>= 70 days) under different environmental conditions, with excellent fluidity. This study contributes to understanding sulfonation as a viable approach for improving protein properties, thus, opening up new possibilities for their application and maximizing their economic benefits.
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