منابع مشابه
Improved 18-hour methyl red test.
Standard methods for the methyl red (MR) test are not practical for routine use in clinical laboratories because of the necessarily prolonged incubation period. When read after overnight incubation, the usual MR test is often equivocal or falsely positive. The present study demonstrates the importance of standardizing the total volume of broth, the size of the vessel in which the cultures are i...
متن کاملThe One-Hour Oral Glucose Tolerance Test
Response of middle-aged men to loo-gram and 50-gram doses of glucose given fasting and 1, 2, and 3 hours after meal. PREFACE This is one of several studies designed to evaluate examination procedures used in the first cycle of the Health ESamination Survey. These studies constitute efforts to define and to measure some of the components of variation in the examination techniques. Where the tech...
متن کاملDeoxyribonuclease: detection with a three-hour test.
A three-hour test has been developed to determine deoxyribonuclease activity of Enterobacteriaceae and staphylococci. The test is inexpensive and easy to perform. The rapid deoxyribonuclease test and the conventional method showed complete agreement with the strains tested.
متن کاملRapid seven-hour fecal coliform test.
A rapid 7-h fecal coliform (FC) test for the detection of FC in water has been developed. This membrane filter test utilizes a lightly buffered lactose-based medium (m-7-h FC medium) combined with a sensitive pH indicator system. FC colonies appeared yellow against a light purple background after incubation at 41.5 degrees C for 7 to 7.25 h. Comparison of FC test results showed that the mean ve...
متن کاملPhotocatalytic degradation of methyl red dye
Introduction Most dyes used in the pigmentation of textiles, paper, leather, ceramics, cosmetics, inks and food-processing products are derived from azo dyes, which are characterised by the presence of one or more azo groups (-N=N-) in their structure. Approximately 15% of the dyes produced worldwide are lost within waste water during synthesis and processing. This waste represents a great haza...
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ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1970
ISSN: 0003-6919
DOI: 10.1128/am.20.6.866-870.1970