Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2022, Vol. 38 ›› Issue (34): 120-129.doi: 10.11924/j.issn.1000-6850.casb2021-0641

Special Issue: 生物技术

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Effect of South Schisandra chinensis Ester B-Nisin-KGM Compound Coating Agent on Fresh Meat Preservation

ZHANG Junwei(), ZHANG Xiaohu(), XU Yucong   

  1. College of Biology Pharmacy and Food Engineering, Shangluo University/ Shaanxi Qinling Industrial Technology Research Institute of Special Biological Resources, Shangluo, Shaanxi 726000
  • Received:2022-06-29 Revised:2022-09-30 Online:2022-12-05 Published:2022-11-25
  • Contact: ZHANG Xiaohu E-mail:zjw7252021@163.com;zxh5462@163.com

Abstract:

Taking Schisandra chinensis, the “medicine and food homology” plant, of Shangluo as the research object, the extraction, purification and antibacterial study of south Schisandra chinensis ester B were conducted. Then, we combined south Schisandra chinensis ester B with Nisin, KGM and lycopene to prepare a compound coating agent, in order to prolong the storage time of cold fresh meat. The ultrasonic-assisted ethanol extraction of south Schisandra chinensis ester B was optimized by response surface method of HPLC. At the ultrasonic temperature of 68℃, solid-liquid ratio of 1:8, ethanol mass fraction of 84% and extraction time of 60 min, the yield of south Schisandra chinensis ester B was 1.426 mg/g. The bacterial inhibition order of south Schisandra chinensis ester B purified by HPD100 macroporous resin was Salmonella paratyphi A< Escherichia coli< Staphylococcus aureus< Bacillus subtilis. Taking pH, TVB-N value and MetMb content as the main freshness indexes of cold fresh meat, the effects of different concentrations of south Schisandra chinensis ester B, Nisin, KGM and lycopene on the preservation of cold fresh meat were investigated. The optimal formula of the compound coating agent optimized by orthogonal method was as follows: 2.5% south Schisandra chinensis ester B+0.1% Nisin+0.4% KGM+0.03% lycopene, the agent can preserve fresh meat at 4℃ for 10 days. The results can provide technical reference for south Schisandra chinensis ester B application in the storage and preservation of cold fresh meat.

Key words: south Schisandra chinensis ester B, response surface method, ultrasonic-assisted, HPD100 type macroporous resin, cold fresh meat

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