منابع مشابه
Some Impurities of Vended Milks
Through the courtesy of a colleague, it has been possible to examine some 240 samples of Bristol milk collected under good conditions.
متن کاملEnzymatic synthesis of vanillin.
Due to increasing interest in natural vanillin, two enzymatic routes for the synthesis of vanillin were developed. The flavoprotein vanillyl alcohol oxidase (VAO) acts on a wide range of phenolic compounds and converts both creosol and vanillylamine to vanillin with high yield. The VAO-mediated conversion of creosol proceeds via a two-step process in which the initially formed vanillyl alcohol ...
متن کاملMicrobial Production of Vanillin
Vanilla (4-Hydroxy-3-methoxybenzaldehyde), an aromatic flavour compound, is one of the most commonly used food flavouring agents and is extracted from pods of Vanilla planifolia. It holds tremendous industrial applications in food, pharmaceuticals, beverages, perfumes and as nutraceuticals (1). Vanillin extracted from natural sources represents less than 1% of annual market demand and has a mar...
متن کاملBiocatalytic synthesis of vanillin.
The conversions of vanillic acid and O-benzylvanillic acid to vanillin were examined by using whole cells and enzyme preparations of Nocardia sp. strain NRRL 5646. With growing cultures, vanillic acid was decarboxylated (69% yield) to guaiacol and reduced (11% yield) to vanillyl alcohol. In resting Nocardia cells in buffer, 4-O-benzylvanillic acid was converted to the corresponding alcohol prod...
متن کاملFluoride levels in UK infant milks
AIM To provide a comprehensive report of fluoride concentration in UK infant milks and estimate their contribution to daily fluoride intake. METHODS A total of 60 formula milk products available commercially or within a hospital environment were analysed, along with eight pasteurised cow's milk samples. Formula milk products requiring preparation were reconstituted with fresh Leeds tap water ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1963
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(63)89097-9