Anaerobic digestion of biomasses originates different products, the most abundant of which are methane and carbon dioxide. During this process, a 60-70% organic matter reduction occurs and the final product, the digestate, is characterized by high biological stability and high contents of recalcitrant organic molecules and nutrients. In the present work digestates obtained by different mixture ...

The antioxidant and food pigment astaxanthin (AX) can be produced by several microorganisms, in auto- or heterotrophic conditions. Regardless of the organism, AX concentrations culture media are low, typically about 10–40 mg/L. Therefore, large amounts nutrients water necessary to prepare media. Using low-cost substrates such as agro-industrial solid liquid wastes is desirable for cost reductio...

Agro-industrial waste has been widely applied in bioprocesses, among which fungiculture highlighted for its ability to transform into value-added products. Thus, this study observed two strains (474 and 572) of Pleurotus ostreatus when cultivated residues pineapple crown, açaí seeds mixture crowns seeds, evaluated the colonization substrates, formation structures quantity mushrooms produced. In...

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Canada is one of the world’s largest producers oat (Avena sativa L.) grains and their derivatives, such as flakes. During flake production, considerable amounts residue are generated, which constitutes a major issue for producers. We applied life cycle assessment (LCA): (1) to quantify environmental impacts flakes production in northeastern (2) compare two agro-industrial symbiosis scenarios ag...

A significant part of fruit production is wasted annually, a material high value without use, causing environmental and social damage. These residues from agro-industrial processes, or those that can no longer be used in the market, recycled generate value-added products by pretreatments/hydrolysis. One important pretreatments acid hydrolysis, which produce xylooligosaccharides (XOS) biomass, p...

medical compounds, especially antibiotics, in which remains in milk and dairy products on the one hand causes health problems such as allergic reactions and development of bacterial resistance to antibiotics are a serious threat to the health of consumers , and on the other hand, industrial troubles such as failure to produce fermented products can cause the milk back to the rancher. the purpos...

In this work, oil mill wastewater (OMW), a residue generated during olive oil extraction, was evaluated as an inducer of rhamnolipid production. Using a medium containing as sole ingredients corn steep liquor (10%, v/v), sugarcane molasses (10%, w/v) and OMW (25%, v/v), Pseudomonas aeruginosa #112 produced 4.5 and 5.1g of rhamnolipid per liter in flasks and reactor, respectively, with critical ...

This work is focused on the study of different microorganisms to obtain a high level of lipase. It was selected 6 different microorganisms: Geotrichum candidum NRRLY-552, Geotrichum sp., Fusarium oxysporum and three wild yeasts from Brazil rainforest. Fermentation carried out using agro industrial by-products like corn steep liquor and protein hydrolysed in shaken flasks under different conditi...