The metabolite production of lactic acid bacteria (LAB) on silage was investigated. The aim was to compare the production of antifungal metabolites in silage with the production in liquid cultures previously studied in our laboratory. The following metabolites were found to be present at elevated concentrations in silos inoculated with LAB strains: 3-hydroxydecanoic acid, 2-hydroxy-4-methylpent...

The emergence of multidrug-resistant bacteria has prompted the development alternative therapies, including use natural products with antibacterial properties. properties Zantaz honey produced in Moroccan Atlas Mountains against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus was evaluated analyzed using chemometric tools. Minimum inhibitory concentration (MIC) bactericidal ...

4-Coumaric acid:coenzyme A ligase (4CL) is involved in monolignol biosynthesis for lignification in plant cell walls. It ligates coenzyme A (CoA) with hydroxycinnamic acids, such as 4-coumaric and caffeic acids, into hydroxycinnamoyl-CoA thioesters. The ligation ensures the activated state of the acid for reduction into monolignols. In Populus spp., it has long been thought that one monolignol-...

The enhanced chemiluminescence (CL) reaction of the luminol±H2O2±horseradish peroxidase (HRP) system with immobilized HRP using microencapsulation in a sol±gel matrix has been used to develop a biosensor for p-iodophenol, p-coumaric acid, 2-naphthol and hydrogen peroxide. The detection limits obtained for p-iodophenol, p-coumaric acid and 2-naphthol were 0.83 mM, 15 and 48 nM, respectively. Dir...

Brettanomyces bruxellensis has been described as the main contaminant yeast in wine production, due to its ability to convert the hydroxycinnamic acids naturally present in the grape phenolic derivatives, into volatile phenols. Currently, there are no studies in B. bruxellensis which explains the resistance mechanisms to hydroxycinnamic acids, and in particular to p-coumaric acid which is direc...

Kováčová M., Malinová E. (2007): Ferulic and coumaric acids, total phenolic compounds and their correlation in selected oat genotypes. Czech j. Food Sci., 25: 325–332. Ferulic and coumaric acids were determined by high-performance liquid chromatography in 21 oat genotypes supplied from the gene bank of the Research Institute of Plant Production in Piešťany (Slovak Republic) with the aim of sele...

In an effort to evaluate the antioxidative property in mango, a laboratory study was conducted at BCKV, Mohanpur during 2019 with ten varieties of mango selected on basis popularity and area coverage. The pulp fruit samples harvested firm ripe stage showed wide genotypic variability contents antioxidants activity enzymes tested. Ascorbic acid total phenol ranged from 16.20 44.26 mg 100 g-1 (aro...

Phenanthrene Biosynthesis, Bibenzyl Synthase, Batatasins, D ioscoreaceae The bibenzyl batatasin III was formed de novo in aerial bulbils and tubes o f D ioscoreaceae from dihydro-m-coumaric acid. In cell-free preparations, bibenzyl synthase activity and an O-methyltransferase converting 3,3',5-trihydroxybibenzyl into batatasin III were detected. High rates o f incorporation o f dihydro-m-coumar...