FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (12): 494-497.

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Screening of Strains Used for Producing Rapeseed Peptide through Solid-state Fermentation

 JU  Xing-Rong, HE  Rong, YUAN  Jian, WANG  Li-Feng, GU  Jian-Hong   

  1. 1.College of Food Science and Engineering,Nanjing University of Finance and Economics,Key Laboratory of Grain and Oils Quality Control and Deep-utilizing Technology of Jiangsu Province,Nanjing 210003,China;2.Nantong Hongtong Biotechnology Co,Ltd.,Nantong 226006,China
  • Online:2008-12-15 Published:2011-12-08

Abstract: With Aspergillus niger,Geotrichum candidum,Aspergillus usamii,Actinomucor elegans,Candida utilis,Bacillus licheniformis,Aspergillus oryzae,and Bacillus subtilis as original strains,rapeseed meal as raw material,and peptide recovery ratio,soluble nitrogen,amino acid nitrogen and protease activity as evaluation indexes,the screening of the strains which were used for producing rapeseed peptide through solid-state fermentation was carried out. The results showed that the effects of fermentation of Aspergillus usamii,Actinomucor elegans,and Bacillus subtilis are better than those of other strains,and a lot of low molecular weight rapeseed peptides are produced after solid-state fermentation,while Bacillus subtilis is more suitable for producing rapeseed peptide singly through solid-state fermentation.

Key words: rapeseed peptide, solid-state fermentation, strain screening