The aroma of vanilla pods is mainly derived from vanillin. Microbial biotransformation reactions vanillin precursors yield “natural” vanillin-related metabolites. In this study, we coated with three edible microorganisms and observed the changes in tissues a laser scanning microscope during early curing. addition, conducted volatile components analysis using gas chromatography-mass spectrometry...

BACKGROUND Bacterial cellulose (BC) is a polymeric nanostructured fibrillar network produced by certain microorganisms, principally Gluconacetobacter xylinus. BC has a great potential of application in many fields. Lignocellulosic biomass has been investigated as a cost-effective feedstock for BC production through pretreatment and hydrolysis. It is well known that detoxification of lignocellul...

Since the late 1960’s, when it was realized that male orchid bees (Hymenoptera: Apidae: Euglossina) are strongly attracted to synthetic scents that mimic floral fragrances of at least six plant families (Vogel, 1966; Dodson et al., 1969; Dressler, 1982), the use of chemical baits has become a powerful tool in ecological studies involving this group of Neotropical bees (e.g. Ackerman, 1983; Oliv...

Flavone compounds present as secondary metabolites in many plants have beneficial phytochemical activity. Isolation of flavones from various parts has been widely carried out, but the synthesis pathway is another way to obtain higher yields. This research aimed synthesize flavone vanillin and 2-hydroxyacetophenone through chalcone intermediates produce a 74% yield using an iodide catalyst. new ...

OBJECTIVE Apnea is one of the most common problems in premature newborns. The present study aimed to determine the effect of olfactory stimulation by vanillin on prevention of apnea in premature newborns. METHODS In this randomized controlled trial, 36 premature newborns with the postnatal age of 2 days and weight under 2500 grams referred to the hospitals affiliated to Shiraz University of M...

Benzyl-o-vanillin and benzimidazole nucleus serve as important pharmacophore in drug discovery. The benzyl vanillin (2-(benzyloxy)-3-methoxybenzaldehyde) compound shows anti-proliferative activity in HL60 leukemia cancer cells and can effect cell cycle progression at G2/M phase. Its apoptosis activity was due to disruption of mitochondrial functioning. In this study, we have studied a series of...

The gene loci vdh, vanA, and vanB, which are involved in the bioconversion of vanillin to protocatechuate by Pseudomonas sp. strain HR199 (DSM 7063), were identified as the structural genes of a novel vanillin dehydrogenase (vdh) and the two subunits of a vanillate demethylase (vanA and vanB), respectively. These genes were localized on an EcoRI fragment (E230), which was cloned from a Pseudomo...

The title compound, C(14)H(20)O(3), is a synthetic analogue with a long aliphatic side chain of the important food additive and flavoring agent, vanillin. There are two independent mol-ecules in the asymmetric unit, each having an essentially planar conformation (r.m.s. deviations of 0.023 and 0.051Å for all non-H atoms of the two mol-ecules in the asymmetric unit).