2023
DOI: 10.1016/j.ijhydene.2022.11.271
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Relating biomass composition and the distribution of metabolic functions in the co-fermentation of sugarcane vinasse and glycerol

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Cited by 12 publications
(4 citation statements)
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“…This hypothesis is supported by the hydrogen profiles (Figure 3A,B) and the metabolic pathway suggested elsewhere [70], as demonstrated in Reactions (2)-(4). The results observed during the dark fermentation of other sugarcane-derived substrates, such as vinasse [20,66,67,71] and molasses [68,69,72], also corroborate this hypothesis because in all cases, lactate was identified as the primary precursor of biohydrogen and butyrate.…”
Section: Organic Acid Productionsupporting
confidence: 62%
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“…This hypothesis is supported by the hydrogen profiles (Figure 3A,B) and the metabolic pathway suggested elsewhere [70], as demonstrated in Reactions (2)-(4). The results observed during the dark fermentation of other sugarcane-derived substrates, such as vinasse [20,66,67,71] and molasses [68,69,72], also corroborate this hypothesis because in all cases, lactate was identified as the primary precursor of biohydrogen and butyrate.…”
Section: Organic Acid Productionsupporting
confidence: 62%
“…3A,B) and the metabolic pathway suggested elsewhere [70], as demonstrated in Reactions ( 2)-( 4). The results observed during the dark fermentation of other sugarcane-derived substrates, such as vinasse [20,66,67,71] and molasses [68,69,72], also corroborate this hypothesis because in all cases, lactate was identified as the primary precursor of biohydrogen and butyrate. Lactate + 0.4Acetate + 0.7H + →0.7Butyrate + 0.6H2 + CO2 + 0.4H2O (ΔG° = −183.9 kJ•mol −1 ) (2) (D,E) soluble phase products and (F) hydrogen-to-propionate (H 2 :HPr) and hydrogen-to-ethanol (H 2 :EtOH) ratios.…”
Section: Organic Acid Productionsupporting
confidence: 62%
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“…Na produçãode alguns ácidos, como o acético, cítrico, láctico e butírico, tem-se o acetil CoA como intermediário fundamental. De acordo com Camargo et al (2022), o acetil-CoA é o principal intermediário da produção dos ácidos acético, butírico, propiônico, entre outros ácidos e compostos orgânicos produzidos durante a acidogênese e acetogênese na digestão anaeróbia.O hidrogênio produzido nos dois ensaios foi possivelmente gerado nas reações catalisadas pelas seguintes enzimas: gliceraldeído-3-fosfato desidrogenase (NADH 2 ) Já a produção de ácido butírico ocorreu predominantemente pela via Clostridial a partir de acetil-CoA (Figura 5.7), primeiramente por meio de reações de conversão para formação do intermediário butiril-CoA, catalisadas pelas enzimas acetil-CoA C-Gatenbeck, 1984) Menezes et al (2023). em estudo com reator de leito fluidizado aplicado à co-digestão de vinhaça e glicerol identificaram elevada abundância relativa de Clostridium (77,0%) associado às enzimas atuantes na via de formação de HBu, tal como identificado no presente estudo.…”
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