Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2017, Vol. 33 ›› Issue (32): 113-120.doi: 10.11924/j.issn.1000-6850.casb17050125

Special Issue: 生物技术 水产渔业

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Optimization on Embedding of Antifreeze Proteins from Skin of Nemipterus virgatus

吴珊,,沈瑾烨,陈怡,傅维擎,曾红亮 and 郑宝东   

  • Received:2017-05-27 Revised:2017-10-31 Accepted:2017-11-03 Online:2017-11-27 Published:2017-11-27

Abstract: In order to improve the thermal stability of the anti-freeze skin proteins from Nemipterus virgatus, the porous modified starch was used to embed the anti-freeze proteins from fish skin in this paper, and then their embedding technology and thermal stability were studied. The effects of the ratio of wall material and core materials (W/C ratio), embedding temperature and time on the embedding rate of antifreeze proteins from fish skin were investigated respectively. Moreover, the thermal hysteresis activity was determined. The results showed that the optimum embedding conditions of AFP by the porous modified starch were as following: W/C ratio of 30:1, embedding temperature of 39 ℃, embedding time of 120 min. Under these conditions, the embedding rate could be up to 85.12 ± 1.10%. The effect of variables on the embedding rate of AFP are in the order: embedding temperature > W/C ratio > embedding time. The thermal stability analysis showed that the AFP was protected by the porous modified starch effectively, which improved the thermal stability of AFP of fish skin from Nemipterus virgatus.

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