منابع مشابه
Honey as a natural preservative of milk.
The anti-bacterial property and preservative nature of honey has been studied by evaluating the role of hydrogen peroxide in these properties, against bacterial strains isolated and identified from pasteurized milk samples. The antibacterial property of honey examined by agar incorporation assay and turbidometry, indicated a concentration dependent inhibition of bacterial growth in all catalase...
متن کاملPolymeric Betaine as a Wood Preservative
Didecyl polyoxyethyl ammonium borate (DPAB), also known as Polymeric Betaine, was developed as a co-biocide for chromium-free copper based wood preservatives in Europe in the 1980’s. This paper summarizes the properties of DPAB as a wood preservative. Unique properties related to the betaine nature of DPAB are discussed in terms of the structureproperty relationship. Physical properties of DPAB...
متن کاملUse of Hydrogen Peroxide as a Milk Preservative
an official enquiry prompted by a commercial firm in order to know whether a limited amount of hydrogen peroxide can be used in preservation of milk for 48 hours longer than raw milk under ordinary condition. Under the Public Health Regulation now in force in the U.K. or India hydrogen peroxide has been classed as a nonpermitted preservative in foodstuffs. Although any kmd of preservative in a ...
متن کاملD-mannose as a preservative of glucose in blood samples.
We studied the changes in blood glucose concentration in blood samples collected in heparinized specimen tubes containing no other preservative, or containing NaF, D-mannose, or a combination of NaF and D-mannose. Blood concentration in samples taken into NaF decreased by 0.40 mmol/L in the first 2 h; thereafter, there was no change. In samples collected into mannose there was a small but signi...
متن کاملAzide as a preservative in assays of aspartate aminotransferase activity.
Azide at an effective antimicrobial concentration, 7.7 mmol/liter, inhibits neither the cytoplasmic or the mitochondrial isoenzymes of human aspartate aminotransferase (EC 2.6. 1. 1) or porcine malate dehydrogenase (EC 1.1.1.37). It markedly prolongs the usefulness of substrates in assays for estimating aspartate aminotransferase activity (aspartate substrate without azide deteriorates in less ...
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ژورنال
عنوان ژورنال: Nature
سال: 1940
ISSN: 0028-0836,1476-4687
DOI: 10.1038/146133b0