The microbiological assay of riboflavin. The influence of inorganic constituents and unknown growth factors

Chattaway, F. W.; Happold, F. C.; Sandford, Mary

doi:10.1042/bj0370298

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Acid-producing Potentialities Of Lactobacillus Arabinosus1

Determination Of Response1

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1943

1966

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Cited by 15 publications

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“…Inhibitory substances Iron and calcium. In view of the findings of Chattaway, Happold & Sandford (1943), regarding the toxicity of certain cations, the effect of both iron and calcium was investigated in the modifiGd final medium (Table 10) containing 0.1 and 0.5 pg. nicotinic acid/lO ml.…”

Section: Acid-producing Potentialities Of Lactobacillus Arabinosusmentioning

confidence: 99%

A Critical Study of Factors Influencing the Microbiological Assay of Nicotinic Acid

Kodíček

Pepper

1948

Journal of General Microbiology

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SU1MMARY:The cultural characters of a strain of Lactobacillus arabinosus and L. helveticus used in the microbiological assay of riboflavin and nicotinic acid proved to be typical, excepting that neither strain fermented xylose and the strain of L. arabinosus fermented rhamnose but not raffinose. Neither produced catalase, so that a strongly positive catalase test in these cultures indicates probable contamination by common air-borne micro-organisms.

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Section: Acid-producing Potentialities Of Lactobacillus Arabinosusmentioning

confidence: 99%

A Critical Study of Factors Influencing the Microbiological Assay of Nicotinic Acid

Kodíček

Pepper

1948

Journal of General Microbiology

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“…He corrected for this by converting the tannin to an insoluble substance with heat. Chattaway et al (1943) presented evidence to show that acid production can be altered by varying the concentrations of Fe++, Ca++, K+, PO43, and NaCl in the basal medium.…”

Section: Determination Of Responsementioning

confidence: 99%