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THE ESTIMATION OF PENICILLIN IN MILK
Author(s) -
WRIGHT R. C.,
TRAMER J.
Publication year - 1961
Publication title -
international journal of dairy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 53
eISSN - 1471-0307
pISSN - 1364-727X
DOI - 10.1111/j.1471-0307.1961.tb00947.x
Subject(s) - penicillin , titratable acid , streptococcus , microbiology and biotechnology , chemistry , food science , biology , antibiotics , bacteria , genetics
Summary A simple test for the estimation of 001‐0‐30 i.u. of penicillin per ml. of milk is proposed, based on the inhibition of a strain of Streptococcus thermophilics 'BC Fairly accurate assessments are obtained in 21 hr. using 2:3:5 triphenyltetrazolium chloride (TTC) as indicator, or more accurate results in 4 hr. using titratable acidities.