Oleaginous yeasts have attracted increasing scientific interest as single cell oil (SCO) producers. SCO can be used a fossil-free fuel substitute, but also source of rarely found odd-chain fatty acids (OCFAs), such C15, C17, and C25 which wide range nutritional biological applications. Volatile (VFAs) gained sustainable carbon for yeasts. This study aims to improve current knowledge on yeast sp...

Abstract The cornerstones of an efficient circular waste management strategy aiming for enhanced resource efficiency are maximizing organic valorization and improving residual conversion to biochemicals. In this regard, study focuses on the production volatile fatty acids (VFAs) from effluent fungi biomass cultivation low-grade residues potato starch industry with batch semi-continuous membrane...

Nanofiltration can be used to recover chemicals, like VFAs, produced by the fermentation of biomass. Solution pH is a key parameter for as well recovery using nanofiltration. Current work reports an experimental investigation carried out with single and mixed solutions that contain acetic, propionic, butyric acids, at various concentrations pHs. It shown retention VFAs increases solution follow...

The capacity of the rumen microbiota to produce volatile fatty acids (VFAs) has important implications in animal well-being and production. We investigated temporal changes of the rumen microbiota in response to butyrate infusion using pyrosequencing of the 16S rRNA gene. Twenty one phyla were identified in the rumen microbiota of dairy cows. The rumen microbiota harbored 54.5±6.1 genera (mean ...

A nanoporous array anodic titanium-supported co-polymeric ionic liquids (NAAT/PILs) solid-phase microextraction (SPME) fiber was prepared in situ on the titanium wire. NAAT was selected as the substrate, in view of its high surface-to-volume ratio, easy preparation, mechanical stability, and rich titanol groups on its surface which can anchor silica coupling agent containing vinyl and then intr...

Batch and continuous experiments were conducted to study the influence of dairy wastewater strength (2–30 g-COD/L) on acidification at pH 5.5 and 378C. Results of batch experiments showed that carbohydrate was preferentially acidified as compared to protein and lipid. Production of VFAs (mainly acetate, propionate and butyrate) and hydrogen corresponded to carbohydrate acidification, whereas pr...

Sansone, F.J. and Martens, C.S., 1981. Determination of volatile fatty acid turnover rates in organic-rich marine sediments. Mar. Chern., 10: 233-247. Volatile fatty acid (VFA) apparent turnover rates in organic-rich marine sediments were determined by measuring whole sediment VFA concentration and the corresponding first­ order reaction rate constants. In order to measure VFA concentrations, b...

In order to minimize odor and manage nutrients in liquid pig manure we need to be able to predict what operational practices most influence the concentrations of volatile fatty acids (VFAs), ammonium nitrogen (NH(4)(+)-N), and other nutrients present in the manure. To determine this, we collected manure from 15 pig operations in southwestern Ontario in the fall of 2001 and 2002 and spring of 20...

Purified basolateral membrane vesicles were prepared from the intestinal epithelium of the tilapia Oreochromis mossambicus, a herbivorous teleost. Characteristics of volatile fatty acid (VFA) transport were investigated using [H]acetate as a representative anion. No significant change in [H]acetate influx was observed in the presence of a cation gradient (K or Na) compared to the influx observe...

Abstract Volatile fatty acids (VFAs) are key platform chemicals used in a multitude of industries including chemicals, pharmaceuticals, food and agriculture. The current route for VFA production is petrochemical based. VFAs can be biologically produced using organic wastes as substrate, therefore directly contributing to sustainable economy. This process commonly known acidogenic fermentation (...