文献类型： 外文期刊

作者： Xiao, Y. ¹ ; Shen, W. Z. ¹ ; Li, Q. R. ¹ ; Xing, D. X. ¹ ; Yang, Q. ¹ ;

作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Agri Food Res Inst, Guangzhou 510610, Peoples R China

2.Key Lab Funct Foods, Minist Agr & Rural Affairs, Guangzhou 510610, Peoples R China

3.Guangdong Key Lab Agr Prod Proc, Guangzhou 510610, Peoples R China

关键词： active ingredient; silkworm; quantitative determination; vitality; correlation analysis

期刊名称：JOURNAL OF INSECTS AS FOOD AND FEED （ 影响因子：5.1； 五年影响因子：5.1 ）

ISSN：

年卷期： 2023 年 9 卷 8 期

页码：

收录情况： SCI

摘要： Silkworm (Bombyx mori) is a traditional edible insect. Whole silkworm powder contains 1-deoxynojirimycin (DNJ). DNJ is an alpha-glucosidase inhibitor with hypoglycaemic activity. The silkworm cannot synthesise DNJ by itself, most of the DNJ in silkworm is obtained by the consumption of mulberry leaves. In this study, the DNJ content of silkworm in different developmental stages and that of 50 representative resource varieties were measured, its correlation with viability of the variety was analysed. The results showed that silkworms at the peak feeding point of the 3rd instar had the highest DNJ content in seven development stages from the 2nd instar to the pupa stage. There was a large difference in the content of DNJ among varieties. The average DNJ content was 7.528 mg/g and the distribution of DNJ content among varieties conformed to the normal distribution (P>0.05). The varieties could be divided into three clusters according to DNJ content, and the DNJ content in cluster III, which contained 11 varieties was higher than other clusters. There were significant differences among polyvoltine species, Chinese species, and Japanese species, and significant differences between colour-cocoon varieties and white-cocoon ones. DNJ content in silkworm larvae was significantly correlated with larval survival rate and larva-pupa rate. In this study, the cluster III with the highest DNJ content may have the potential to be used as preferred raw material for hyperglycaemia regulation or treatment and candidate parent materials for enriched material. Furthermore, DNJ may have a positive effect on the physical fitness of silkworm.