Some effective measures beneficial to the production of alkaline proteinase are discussed: organismal rejuvenation, mutagenesis breeding. metabolic regulation and improvement of technology condition.
Accelerating the aging of new wine and new vinegar, sterilizing fermented foods and mutagenizing Saccharomyces cerevisia by modern physical technology were reviewed in this paper.
A mutant, TS-N-121 was obtained by mutation and plate screening from a parent strain Mycobacterium fortuitum MF2 , which could transform sterol into androstanedione as the main product.
UV can be a very, very powerful mutagen for DNA and what it does specifically, is these C-bases, these green bases, it can turn them into T-bases, these red bases.
紫外线对 DNA 来说是一种非常非常强大的剂,它具体的作用是,这些 C 碱基,这些绿色碱基,它可以把它们成 T 碱基,这些红色碱基。