Brewer's spent grain and corn steep liquor as alternative culture medium substrates for proteinase production by Streptomyces malaysiensis AMT-3

Revista de microbiologia

Nascimento, Rodrigo Pires do¹  Alves Junior, Nelson² 

[1] Universidade Federal do Recôncavo da Bahia, Cruz das Almas, Brasil;Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil

关键词: Streptomyces malaysiensis;    brewer's spent grains;    corn steep liquor;    proteinases;    submerged fermentation.;   

DOI  :  10.1590/S1517-83822011000400020

学科分类：农业科学（综合）

来源: Sociedade Brasileira de Microbiologia / Brazilian Society for Microbiology

【 摘 要 】

Brewer's spent grain and corn steep liquor or yeast extract were used as the sole organic forms for proteinase production by Streptomyces malaysiensis in submerged fermentation. The influence of the C and N concentrations, as well as the incubation periods, were assessed. Eight proteolytic bands were detected through gelatin-gel-electrophoresis in the various extracts obtained from the different media and after different incubation periods, with apparent molecular masses of 20, 35, 43, 50, 70, 100, 116 and 212 kDa. The results obtained suggest an opportunity for exploring this alternative strategy for proteinases production by actinomycetes, using BSG and CSL as economically feasible substrates.

【 授权许可】

CC BY-NC