State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, 1 Xiangshan Beigou, Beijing 100093, China; College of Engineering, China Agricultural University, P.O. Box 194, 17 Qinghua Donglu, Beijing 100083, China.
State Key Laboratory of Resource Insects, Institute of Apicultural Research, Chinese Academy of Agricultural Sciences, 1 Xiangshan Beigou, Beijing 100093, China.
Ultrason Sonochem. 2024 Jul;107:106927. doi: 10.1016/j.ultsonch.2024.106927. Epub 2024 May 24.
A novel technique was proposed for processing silkworm pupae by combining plasma- activated water (PAW) with ultrasound (US). The microbial diversity and quality characteristics of the silkworm pupae were also evaluated. The results of the microbial diversity analysis indicated that PAW combined with US treatment significantly reduced the relative abundance of Streptococcaceae, Leuconostocaceae, and Acetobacteraceae from 32%, 18% and 16% to 27%, 11% and 11%, respectively. Microstructural analysis demonstrated that the collapse of the internal structure of chitin in silkworm pupae facilitated the release of nutrients and flavour compounds including fatty acids, water-soluble proteins (WSP), amino acids, phenolics, and volatile compounds. Furthermore, the increase in antioxidant capacity and the decrease in catalase activity and malondialdehyde content confirmed the mechanism of quality change. These findings provide new insights into the possible mechanism of PAW combined with US to improve the quality of edible insects.
提出了一种将等离子体激活水（PAW）与超声（US）相结合处理蚕蛹的新方法，并对蚕蛹的微生物多样性和品质特性进行了评价。微生物多样性分析结果表明，PAW 联合 US 处理可使蚕蛹中链球菌科、明串珠菌科和醋杆菌科的相对丰度分别从 32%、18%和 16%显著降低至 27%、11%和 11%。微观结构分析表明，PAW 联合 US 处理可破坏蚕蛹中几丁质的内部结构，促进包括脂肪酸、水溶性蛋白质（WSP）、氨基酸、酚类化合物和挥发性化合物在内的营养物质和风味化合物的释放。此外，抗氧化能力的提高和过氧化氢酶活性的降低以及丙二醛含量的减少证实了其品质变化的机制。这些发现为 PAW 联合 US 改善食用昆虫品质的可能机制提供了新的见解。
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