Removal of acid by trioctylamine from samples for microbiological assay
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A MICROBIOLOGICAL ASSAY METHOD FOR p-AMINOBENZOIC ACID
Since the eshablishment of p-aminobenzoic acid as a member of the B vitamin group, a considerable interest has been shown in methods of determination in natural materials. Since known chemical methods are not sufficiently sensitive, it became evident that microbiological tests should be the most practicable. The organism Clostridium acetobutylicum has been used (I) but no general assay procedur...
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Background: Natural organic matter is the cause of many problems associated with water treatment such as the presence of disinfection by-products (DBPs) and membrane fouling during water filtration. In this study, the performance of the peroxi-electrocoagulation process (PEP) was investigated for the removal of humic acids (HAs) from aqueous solutions. Methods: PEP was carried out for the remov...
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5 Present study attempted to determine the microbiological quality of raw, pasteurized and UHT (Ultra High Temperature-processed) milk samples collected from different locations in Bangladesh. A total of 46 samples were studied including 22 raw milk samples from the local dairy markets and 24 different brands of pasteurized and ultrahigh temperature (UHT) treated milk manufactured in different ...
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this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
A microbiological assay of deoxyribonucleosides and deoxyribonucleic acid.
Brady, T. G. (1941). Biochem. J. 35, 855. Clark, V. M. & Kalckar, H. M. (1950). J. chem. Soc. p. 1029. Doudoroff, M., Barker, H. A. & Hassid, W. Z. (1947). J. biol. Chem. 168, 725. Friedkin, M. & Kalckar, H. M. (1950). J. biol. Chem. 184, 437. Hoff-J0rgensen, E. (1952). Biochem. J. 50, 400. Kalckar, H. M. (1947 a). J. biol. Chem. 167, 429. Kalckar, H. M. (1947b). J. biol. Chem. 167,445. Klenow,...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1951
ISSN: 0306-3283
DOI: 10.1042/bj0480487