A novel thermo-responsive phospholipase A 1 with high selectivity and efficiency in enzymatic oil degumming
文献类型： 外文期刊
作者： Li, Zhong 1 ; Zhou, Huilin 1 ; Liu, Xuan 1 ; Wang, Weifei 2 ; Lan, Dongming 1 ; Wang, Yonghua 1 ;
作者机构： 1.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510640, Peoples R China
2.Guangdong Acad Agr Sci, Sericultural & Agrifood Res Inst, Guangzhou 510610, Peoples R China
3.Guangdong Youmei Inst Intelligent Biomfg Co Ltd, Foshan 528200, Peoples R China
关键词： Phospholipase A 1; Enzymatic properties; Phospholipid substrate specificity; Enzymatic degumming; Phospholipid composition
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 456 卷
页码：
收录情况： SCI
摘要： The limited availability of phospholipase A1 (PLA1) has posed significant challenges in enzymatic degumming. In this study, a novel PLA1 (UM2) was introduced to address this limitation, which had a unique thermo-responsive ability to switch phospholipase and lipase activities in response to temperature variations. Remarkably, UM2 displayed an unprecedented selectivity under optimized conditions, preferentially hydrolyzing phospholipids over triacylglycerols-a specificity superior to that of commercial PLA1. Moreover, UM2 demonstrated high efficiency in hydrolyzing phospholipids with a predilection for phosphatidylcholine (PC) and phosphatidylethanolamine (PE). A practical application of UM2 on crude flaxseed oil led to a dramatic reduction in phosphorus content, plummeting from an initial 384.06 mg/kg to 4.38 mg/kg. Broadening its industrial applicability, UM2 effectively performed enzymatic degumming for other distinct crude vegetable oils with a unique phospholipid composition. Collectively, these results highlighted the promising application of UM2 in the field of oil degumming.
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