食品科学 ›› 2019, Vol. 40 ›› Issue (1): 263-269.doi: 10.7506/spkx1002-6630-20171028-333

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鹅皮胶原蛋白/壳聚糖复合膜理化性质和保鲜效果

阮一凡1，朱静静1，潘道东1,2,*，孙杨赢1，沈建良3   

  1. 1.宁波大学 浙江省动物蛋白食品精深加工技术重点实验室，浙江 宁波 315211；2.南京师范大学金陵女子学院食品科学与营养系，江苏 南京 210097；3.湖州展旺食品科技有限公司，浙江 湖州 313014
  • 出版日期:2019-01-15 发布日期:2019-01-22
  • 基金资助:
    国家水禽产业技术体系岗位科学家基金项目（CARS-42-25）

Physicochemical Properties of Goose Skin Collagen/Chitosan Composite Membrane and Its Potential for Food Preservation

RUAN Yifan1, ZHU Jingjing1, PAN Daodong1,2,*, SUN Yangying1, SHEN Jianliang3   

  1. 1. Key Laboratory of Animal Protein Food Deep Processing Technology of Zhejiang Province, Ningbo University, Ningbo 315211, China; 2. Department of Food Science and Nutrition, Ginling College, Nanjing Normal University, Nanjing 210097, China; 3. Huzhou Zhanwang Food Technology Co. Ltd., Huzhou 313014, China
  • Online:2019-01-15 Published:2019-01-22

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摘要： 为了研发由天然生物材料制成的安全、无毒且具有抗氧化效果的可食性复合膜，以鹅皮胶原蛋白和壳聚糖为原料，研究了30 g/L胶原蛋白溶液与30 g/L壳聚糖溶液以体积比分别为10∶0、8∶2、6∶4、4∶6、2∶8、0∶10制备的可食性复合膜理化性质和其对鸭肉保鲜方面的影响。结果显示：在V（胶原蛋白）∶V（壳聚糖）＝6∶4时，复合膜抗拉强度最大（36.05 MPa），且具备良好的水蒸气透过率、透光率和断裂伸长率；而以上述比例制备的复合膜对新鲜鸭肉进行涂膜处理发现，贮藏12 d后，V（胶原蛋白）∶V（壳聚糖）＝6∶4组硫氏巴比妥酸值和挥发性盐基氮含量最低，分别为0.35 mg/kg和18.04 mg/100 g；V（胶原蛋白）∶V（壳聚糖）＝4∶6组菌落总数最少，为4.75（lg（CFU/g）），且V（胶原蛋白）∶V（壳聚糖）＝6∶4组次之，为5.49（lg（CFU/g））。综上所述：以V（胶原蛋白）∶V（壳聚糖）＝6∶4制备的复合膜具有较好的机械性能和保鲜效果，在食品保鲜中具有一定的应用潜力。

关键词: 胶原蛋白, 壳聚糖, 复合膜, 保鲜

Abstract: In order to develop a safe and non-toxic edible composite membrane with antioxidant properties made from natural biomaterials, edible composite membranes were prepared from mixtures of 30 g/L goose skin collagen (GSC) and 30 g/L chitosan (Ch) at volume ratios of 10:0, 8:2, 6:4, 4:6, 2:8, and 0:10, and their physicochemical properties was assessed, as well as their application for duck preservation. The results showed that the composite membrane with a 6:4 GSC to Ch ratio had the highest tensile strength (36.05 MPa) along with good water vapor permeability (WVP), light transmittance and elongation at break. Duck samples coated with this composite membrane showed the lowest thiobarbituric acid (TBA) value (0.35 mg/kg) and total volatile base nitrogen (TVB-N) content (18.04 mg/100 g) values after 12 days of storage. The total number of bacteria in duck samples coated with the composite membrane with a 4:6 GSC to Ch ratio was the lowest, only 4.75 (lg(CFU/g)), and the composite membrane with a 6:4 GSC to Ch ratio showed a higher value of 5.49 (lg(CFU/g)). In summary, the composite membrane with a GSC to Ch ratio of 6:4 has good mechanical properties and good potential in food preservation.

Key words: collagen, chitosan, composite membrane, preservation

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