原肌球蛋白
绒螯蟹
化学
消化(炼金术)
十二烷基硫酸钠
食品科学
凝胶电泳
聚丙烯酰胺凝胶电泳
中华绒螯蟹
生物化学
色谱法
生物
肌球蛋白
酶
动物科学
作者
Yong Lü,Huafeng Cheng,Shaotong Jiang,Lin Lin,Jianfeng Lu
标识
DOI:10.1016/j.fshw.2022.09.024
摘要
The tropomyosin (TM) fractions of crab proteins may cause allergic reactions in individuals susceptible to allergies; however, efficient and safe methods by which to reduce such allergenicity are not currently available. Therefore, in this study, the effects of three different processing methods, i.e., microwave, ultrasound, and high temperature-pressure (HTP) treatments, on the digestion stability of TM from Chinese mitten crab muscle and the allergenicity of TM digestion products were explored. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis showed that microwaving had little effect on the digestion stability of TM. In contrast, ultrasound and HTP treatments facilitated the degradation of TM. Similarly, Western blotting and inhibition ELISA indicated that the IgE-binding activity of TM was significantly reduced after treatment with ultrasound or HTP. Among the three different processing methods, HTP was the most effective method for improving digestibility of TM and reducing immunoreactivity. This finding provides new insights into treatments for crab allergies.
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