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Comparison of silkworm powder from 3 Bombyx mori varieties on alcohol metabolism in rats

  • Lee, Da-Young ;
  • Cho, Jae-Min ;
  • Yun, Sun-Mi ;
  • Hong, Kyung-Sook ;
  • Ji, Sang-Deok ;
  • Son, Jong-Gon ;
  • Kim, Eun-Hee
  • Received : 2017.06.20
  • Accepted : 2017.08.08
  • Published : 2017.09.30

Abstract

Increased alcohol consumption is a burden on the world because it is associated with various health problems. However, the effects of silkworms on alcohol metabolism have not been studied yet. The hard-to-eat mature silkworms have become easier to ingest recently due to the development of technology, steam-lyophilising mature silkworm larvae. In this study, we investigated and compared the effects of SMSPs from three silkworm varieties, Baekokjam, Golden-silk and Yeonnokjam weaving white, golden, and light green cocoons on alcohol metabolism in vivo. Sprague-Dawley rats pretreated with three SMSPs (0.1 g/kg or 1 g/kg body weight) or normal diet (AIN-76A) for 2 weeks were subjected to intragastric administration of absolute ethanol (3 g/kg body weight, 3 h). Three SMSPs did not affect the final body weight and liver weight. All 3 SMSPs were effective to reduce the enzymes in alcohol metabolism, alcohol dehydrogenase (ADH) and aldehyde dehydrogenase (ALDH), and liver damage and enzymes involved in liver damage, aspartate aminotransferase (AST) and alanine aminotransferase (ALT). Among SMSP from 3 varieties of silkworm, preadministration of 1 g/kg Baekokjam SMSP showed the most effective suppressive effect on the activities of ADH, ALDH, AST and ALT. The Baekokjam SMSP contained higher amounts of beneficial amino acids than Golden-silk or Yeonnokjam SMSP. These results suggest that Baekokjam SMSP might be used as a new and promising candidate for improving alcohol metabolism and liver injury through promoting rapid alcohol metabolism.

Keywords

Steamed and freeze-dried mature silkworm larval powder;Silkworm varieties;Ethanol;Alcohol dehydrogenase;Aldehyde dehydrogenase;SD rat

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Acknowledgement

Grant : Elucidation the health improvement effects of boiled silk worm larvae

Supported by : Rural Development Administration