作者: M. V. RAMANA RAO , S. M. DUTTA
DOI: 10.1111/J.1365-2621.1981.TB04188.X
关键词:
摘要: A β‐galactosidase from Streptococcus thermophilus was purified to homogeneity by ammonium sulfate and acetone fractionation, gel filtration on Sephadex G‐200, and ion exchange …