【摘要】 为延长海湾扇贝的货架期,在单一生物保鲜剂试验研究的基础上,通过正交试验将蜂胶、羧甲基壳聚糖和茶多酚进行复配,优选出一种复合生物保鲜剂,并验证其在海湾扇贝防腐保鲜中的应用效果。试验结果表明:该复合保鲜剂最佳配比为蜂胶0.3%、羧甲基壳聚糖2.0%、茶多酚0.2%。利用该保鲜剂处理海湾扇贝,在(0±1)℃贮藏过程中,挥发性盐基氮第9天未达到15 mg/100 g,细菌总数第10天才达到5.82 lg(CFU/g),保持了较好的感官品质,货架期由原来的5~6 d延长至10 d,具有较好的应用价值。更多还原

【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.更多还原