The floral phenology, pollination ecology and breeding systems of two sympatric early-divergent angiosperms, Goniothalamus tapisoides and G. suaveolens (Annonaceae) are compared. The flowers are protogynous and morphologically similar, with anthesis over 23-25 h. Both species are predominantly xenogamous and pollinated by small beetles: G. tapisoides mainly by Curculionidae and G. suaveolens ma...

The search for novel brewing strains from non-brewing environments represents an emerging trend to increase genetic and phenotypic diversities in yeast culture collections. Another valuable tool is hybridization, where beneficial traits of individual are combined a single organism. This has been used successfully create de novo hybrids parental by mimicking natural Saccharomycescerevisiae ale ×...

beta-Damascenone, a C-13 norisoprenoid compound, is usually presented as an impact odorant in red wines. Its direct contribution to their aroma was investigated. Both free beta-damascenone and beta-damascenone precursors were isolated from various French red wines and then analyzed by gas chromatography-mass spectrometry, revealing concentrations in the vicinity of 1 and 2 microg/L for free com...

Herein, nuruks derived from non-glutinous and glutinous rice inoculated with Aspergillus oryzae N159-1 (having high alpha-amylase and beta-glucosidase activities) were used to produce Korean alcoholic beverages. The resultant beverages had enhanced fruity (ethyl caproate and isoamyl alcohol) and rose (2-phenethyl acetate and phenethyl alcohol) flavors and high taste scores.

Molecular dynamics simulations are used to investigate the interfacial properties of molecules related flavours Scotch whisky, in ethanol/water solutions with different values alcohol-by-volume (ABV). The propensity flavour accumulate at liquid-vapour interface is linked evaporation those into head space, and consequently their perception when nosing or tasting. simulation approach first valida...

A series of lactic/glycolic acid polymers with various molar ratios of lactic to glycolic acid and various molecular weights were synthesized using the ring-opening polymerization method. The polymerization conditions for the lactic/glycolic acid polymer synthesis were as follows: 150 degrees C, 700 microm Hg, 3 h, 0.03 wt% of catalyst (stannous 2-ethyl-hexanoate) concentration. The molecular w...

The influence of human salivary enzymes on palm wines' odorant concentrations were investigated by the application of aroma extracts dilution analysis (AEDA) and by the calculation of odour activity values (OAVs), respectively. The odorants were quantified by means of stable isotope dilution assays (SIDA), and the degradation profiles of odorants by human saliva were also studied. Results revea...

Abstract The wheat wireworm, Agriotes mancus (Coleoptera: Elateridae), is a predominant elaterid pest species in the Nearctic region, with life history and morphology similar to those of obscurus , lineatus sputator three Palearctic elaterids invasive North America. Here, we report identification field testing sex pheromone A. mancus. We collected headspace volatiles from female beetles on Pora...

Pseudomonas putida KT 2442 was utilized as biocatalyst to form optoactive poly(/?-hydroxya1kanoate)s (PHAs) from a cosubstrate mixture of octanoate and the achiral polarizable carbon source 6(4-cyanophenoxy)hexanoate, CPH. COSY and heteronuclear multiplet quantum correlation experiments were used to assign ‘H and 13C NMR signals of 3-hydroxy-6(4cyanophenoxy)hexanoate (3HCPH) repeat units. The m...