As the human population grows on planet so does generation of waste and particularly that food waste. In order to tackle world sustainability crisis, efforts recover products from are critical. Here, we anaerobically recovered volatile fatty acids (VFAs) analysed microbial populations underpinning process. An increased contribution fungi relative bacteria was observed throughout reactor operati...

This study revealed long-chain fatty acids(LCFAs) on propionic acid production by lipid anaerobic acidogenesis. Oleic and palmitic acid, the two most common LCFAs, were added into acidogenic system to evaluate LCFAs type concentration capacity. The results showed that when of oleic was 4 g/L, content volatile acids(VFAs) 1.3 times higher than blank group(propionic main product, >70%). In contra...

Various wastewater treatment technologies are available today and biological processes predominantly used in these technologies. Increasing systems produces large amounts of sewage sludge with variable quantities qualities, which must be properly managed. Anaerobic aerobic digestion composting major strategies to treat this sludge. The main indicators stabilization volatile fatty acids (VFAs), ...

The objective of this study was to evaluate the effects of different doses of pistachio by-product (PBP) extracts supplemented with alfalfa hay (AH) or barley grain (BG) on microbial fermentation in an in vitro fermentation system. The total extracted phenolic compounds were 36.96, 65.78, 67.02 and 8.85% and total extracted tannin contents were 37.11, 59.64, 56.87 and 7.55% when PBP was extract...

This investigation studies the impact of trace elements supplementation on protein anaerobic conversion into volatile fatty acids (VFAs). Two continuous reactors were operated with two model substrates, casein and gelatin, at acid (pH 5) neutral 7) conditions, addition macro micronutrients. Micronutrients increased acidification degree both proteins from 40% to 50% more than 60% only pH 7, whic...

Biological production of organic acids from conversion of biomass derivatives has received increased attention among scientists and engineers and in business because of the attractive properties such as renewability, sustainability, degradability, and versatility. The aim of the present review is to summarize recent research and development of short chain fatty acids production by anaerobic fer...

The Cassava starch manufacturing wastewater (CSW) was used as a substrate to produce polyhydroxybutyrate (PHB) by Cupriavidus sp. KKU38. The acidogenic fermentation process of CSW was first conducted to obtain volatile fatty acids (VFAs), which are more efficient in PHB production than raw CSW. The effect on substrate concentration and nutrients, i.e. nitrogen and phosphorus concentrations, by ...

Automated reasoning about systems with infinite domains requires an extension of automata, and in particular, regular automata, to infinite alphabets. Existing formalisms of such automata cope with the infiniteness of the alphabet by adding to the automaton a set of registers or pebbles, or by attributing the alphabet by labels from an auxiliary finite alphabet that is read by an intermediate t...

Anaerobic digestion is a promising technology as renewable source of energy products, but these products have low economic value and process control challenging. Identifying intermediates formed throughout the could enhance understanding offer opportunities for improved monitoring, control, valorisation. In this review, present in anaerobic are identified discussed, including following: volatil...