Effects of atmospheric pressure plasma jet on the conformation and physicochemical properties of myofibrillar proteins from king prawn (Litopenaeus vannamei)

被引：203
作者：
Ekezie, Flora-Glad Chizoba [1 ,2 ,3 ]
Cheng, Jun-Hu [1 ,2 ,3 ]
Sun, Da-Wen [1 ,2 ,3 ,4 ]
机构：
[1] South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
[2] South China Univ Technol, Guangzhou Higher Educ Mega Ctr, Acad Contemporary Food Engn, Guangzhou 510006, Guangdong, Peoples R China
[3] Guangzhou Higher Educ Mega Ctr, Engn & Technol Res Ctr Guangdong Prov Intelligent, Guangzhou 510006, Guangdong, Peoples R China
[4] Natl Univ Ireland, Univ Coll Dublin, Agr & Food Sci Ctr, Food Refrigerat & Computerized Food Technol, Dublin 4, Ireland
来源：
FOOD CHEMISTRY | 2019年 / 276卷
基金：
中国博士后科学基金; 国家重点研发计划;
关键词：
Cold plasma; Reactive species; Myofibrillar proteins; Protein conformation; Prawn; FUNCTIONAL-PROPERTIES; SECONDARY STRUCTURE; QUALITY ATTRIBUTES; ACP TREATMENT; COLD; OXIDATION; MODEL; ZEIN; PREDICTION; OVALBUMIN;
D O I：
10.1016/j.foodchem.2018.09.113
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The aim of this study was to ascertain the impact of atmospheric pressure plasma jet treatment (APPJ) as a function of treatment times (0, 2, 4, 6, 8 and 10 min) on the conformation and physicochemical properties of myofibrillar proteins (MPs) extracted from king prawn (Litopenaeus vannamei). The results showed that the pH and protein solubility were decreased after 10 min treatment of APPJ. These results were also confirmed by dynamic light scattering, which indicated an increase in mean particle diameter of MPs from 654 to 2297 nm. Complementary methodologies used to characterize the structural changes confirmed the exposure of hydrophobic groups and promotion of protein-protein interactions. These occurrences were particularly more intense at the longest treatment duration. The high energetic and oxidizing species contained in the plasma gas may have considerable implications on the physical and structural characteristics of MPs from king prawn.
引用
收藏
页码：147 / 156
页数：10
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