Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (22): 136-142.doi: 10.11924/j.issn.1000-6850.casb20190600356

Special Issue: 生物技术 畜牧兽医

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The Application of Forsythosides-Lysozyme-KGM Compound Fresh-Keeping Film in Egg Preservation

Xie Qian(), Zhang Xiaohu(), Pan Cunli   

  1. College of Biology Pharmacy and Food Engineering, Shangluo University/Shaanxi Qinling Industrial Technology Research Institute of Special Biological Resources, Shangluo Shaanxi 726000
  • Received:2019-06-29 Revised:2019-10-30 Online:2020-08-05 Published:2020-07-22
  • Contact: Zhang Xiaohu E-mail:1595698257@qq.com;zhangxiao5462@163.com

Abstract:

The paper aims to prolong the storage period of eggs by preparing the compound plastic film from forsythia sycophane, lysozyme, chitosan and konjac glucomannan. The effects of different concentrations of forsythia glycosides, lysozyme, chitosan and konjac glucomannan on the freshness of eggs were investigated by using egg Haugh unit and egg yolk index as the main freshness evaluation indexes. On the basis of single factor experiment, three significant influencing factors were selected, and the formula of the compound fresh-keeping film was optimized by response surface method, and the fresh-keeping of eggs was studied with Haugh unit as the response value. The results showed that phillyrin, lysozyme and konjac glucomannan had a strong inhibitory effect on egg Haugh unit. The optimum ratio of fresh-keeping film was: forsythyl glycoside concentration 1.64%, lysozyme concentration 2.10%, konjac glucomannan concentration 2.03%, chitosan concentration 1.5%. The best formula of the compound fresh-keeping film was applied to the storage of fresh eggs at 37℃ for 15 days, and the Haugh unit of eggs reached 74.86±2.31. The compound fresh-keeping film formula can be used as a technical reference for egg preservation.

Key words: phillyrin, lysozyme, konjac glucomannan, compound fresh-keeping film, Haugh unit

CLC Number: