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4 hydroxybenzyl alcohol/vanilė
Nuoroda įrašoma į mainų sritį
5 rezultatus
Exploration of Vanilla pompona from the Peruvian Amazon as a potential source of vanilla essence: quantification of phenolics by HPLC-DAD.
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This study provides the first chemical investigation of wild-harvested fruits of Vanilla pompona ssp. grandiflora (Lindl.) Soto-Arenas developed in their natural habitat in the Peruvian Amazon. Flowers were hand-pollinated and the resulting fruits were analysed at different developmental stages
Biosynthesis of vanillin via ferulic acid in Vanilla planifolia.
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(14)C-Labeled phenylalanine, 4-coumaric acid, 4-hydroxybenzaldehyde, 4-hydroxybenzyl alcohol, ferulic acid, and methionine were applied to disks of green vanilla pods 3 and 6 months after pollination (immature and mature pods), and the conversion of these compounds to vanillin or glucovanillin was
Properties of diphenolase from Vanilla planifolia (Andr.) shoot primordia cultured in vitro.
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Properties of diphenolase (PPO, EC1.10.3.1) from vanilla (Vanilla planifolia Andr.) shoot primordia culture were investigated. Two pH optima of the enzyme extraction at pH 6 and 8 were found. Nevertheless, the enzymes shared the same optimum pH of activity-between pH 3 and 4. Sodium dodecyl sulfate
Development and validation of an RP-HPLC method for quantitative determination of vanillin and related phenolic compounds in Vanilla planifolia.
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A simple and fast method was developed using RP-HPLC for separation and quantitative determination of vanillin and related phenolic compounds in ethanolic extract of pods of Vanilla planifolia. Ten phenolic compounds, namely 4-hydroxybenzyl alcohol, vanillyl alcohol, 3,4-dihydroxybenzaldehyde,
Studies on the antioxidant activities of natural vanilla extract and its constituent compounds through in vitro models.
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Vanilla extract was prepared by extraction of cured vanilla beans with aqueous ethyl alcohol (60%). The extract was profiled by HPLC, wherein major compounds, viz., vanillic acid, 4-hydroxybenzyl alcohol, 4-hydroxy-3-methoxybenzyl alcohol, 4-hydroxybenzaldehyde and vanillin, could be identified and
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