Author(s): Qi Fengsheng, Liu Hongying, Wu Xueli, Wang Jie, Ocean College of Hebei Agricultural University, College of Food Science and Technology, Hebei Agricultural University
Pages: 73-79
Year: 2015 Issue:  7
Journal: Journal of Chinese Institute of Food Science and Technology
Keyword:  Argopecten irradias; tea polyphenols; carboxymethyl chitosan; propolis; fresh-keeping;
Abstract: To prolong shelf life of Argopecten irradias adductors, orthogonal experiment has been carried out among Propolis Extract, Carboxymethyl Chitosan and Tea Polyphenols based on studies of single biological preservative to optimize a composite biological preservative. The results show that the optimal composite biological preservative is propolis extract- 0.3%, carboxymethyl chitosan- 2.0%, tea polyphenols- 0.2%. The total volatile basic nitrogen(TVB-N) in Argopecten irradias treated with this biological preservative on 8th day of storage at(0±1) ℃ was still less than 15 mg/100 g, the total bacterial count(TBC) was only 5.82 lg(CFU/g) on the 10 th day, the sensory quality kept better than that of untreated Argopecten irradias and the shelf-life was prolonged from 5-6 to 10 days. This compound preservative has promising applications in the fresh-keeping of Argopecten irradias.