桑蚕活蛹的最适冷藏期研究

[目的]研究桑蚕活蛹的冷藏技术问题,为利于桑蚕活蛹的食用化利用途径拓展。[方法]将刚化蛹的蚕蛹6 h收集1次,分别单独存放,在不同的蛹龄时放入冰箱（2℃）中冷藏60 d左右。[结果]蛹龄≤12 h的蚕蛹Ⅰ、Ⅱ区的蛹色均有不同程度的变深;蛹龄〈24 h的蚕蛹,其存活率很低;蛹龄=48 h的蚕蛹,其外观在冷藏前后几乎无变化;蛹龄≥192 h的蚕蛹冷藏后无蚕蛹存活,同时出现了蚕蛹蛋白腐败后特有的蛹臭味。[结论]桑蚕在化蛹48 h后用2℃冷藏可达60 d以上。

Research on the Best Period of Refrigerated Storage for Alive Silkworm Chrysalis

[Objective] The ways for the practical utilization of the freshly living pupa would be expanded through the research on the technique of alive silkworm chrysalis refrigeration.[Method] The silkworm chrysalis,just pupated,was collected at each interval of 6 hours,and,stored separately in the refrigerator(2 ℃) for about 60 days depending on the different pupae ages.[Results] The color of the pupa with the age ≤ 12 hours was darker.The survival rate of the pupa with the age <24 hours was very low.The appearance of the pupa with the age=48 hours was almost no change before and after its cold storage.The survival rate of the pupa with the age < 192 hours was zero and meanwhile the unique bad smell of silkworm pupae protein appeared.[Conclusion] The silkworm pupa,after 48 hours of its pupation,could be refrigerated at 2 ℃ for 60 days or more.