Enzymatic Hydrolysis Intensification of Lignocellulolytic Enzymes Through Ultrasonic Treatment

Autor(es)

Silvello, Maria Augusta de Carvalho ^[1] ; Camargo, Aline Frumi ^[2] ; Scapini, Thamarys ^[2] ; Paudel, Shukra Raj ^{[3, 4]} ; Treichel, Helen ^[2] ; Goldbeck, Rosana ^[1]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Sch Food Engn, Bioproc & Metab Engn Lab, Campinas, SP - Brazil

^[2] Fed Univ Fronteira UFFS, Dept Environm Engn, Lab Microbiol & Bioproc, Erechim, RS - Brazil

^[3] Tribhuvan Univ, Inst Engn, Dept Civil Engn, Pulchowk Campus, Lalitpur 44700 - Nepal

^[4] Korea Univ, Coll Sci & Technol, Dept Environm Engn, Sejong - South Korea

• Tipo de documento: Artigo de Revisão
• Fonte: BioEnergy Research; SEP 2021.
• Citações Web of Science: 0

Resumo

Ultrasound technology is often associated with harmful effects on enzyme reactions, although it is possible to improve the productivity of bioprocesses when suitable conditions are employed. Sugarcane bagasse and straw are the feedstocks widely used in Brazil for second-generation (2G) ethanol production; however, the lignocellulose biomass conversion into fermentable sugars through the enzymatic route is not yet fully optimized. Lignocellulolytic enzymes represent a significant part of the costs related to 2G ethanol production. Nonetheless, they exhibit great potential for cost reduction due to improved enzyme features: mainly increment of its activity and an increase of hydrolysis yield. This enzymatic hydrolysis of feedstock can be enhanced by green technology ultrasound application's combined action on the enzymes and their substrates. The mixed action increases the lignocellulose saccharification; hence, it is considered a promising alternative for fermentable sugar release. The process optimization using green approaches, such as ultrasound and enzymatic treatment, can boost the sugar yield, thus emphasizing the importance of steps integration towards biomass conversion. This review attempts to provide an overview of the effects of ultrasound treatment on lignocellulolytic enzymes used in the 2G ethanol production and those of the process intensification through an unprecedented bibliometric search. (AU)

• Processo FAPESP: 19/08542-3 - Biotecnologia enzimática para produção de xilo-oligossacarídeos a partir de resíduos agroindustriais lignocelulósicos visando a produção de simbióticos
• Beneficiário: Rosana Goldbeck Coelho
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 15/20630-4 - Desenvolvimento integrado de biorrefinaria e planta de bioetanol de cana-de-açúcar com emissão zero de CO2: rotas para converter recursos renováveis em bioprodutos e bioeletricidade
• Beneficiário: Rubens Maciel Filho
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 18/20787-9 - Estratégias para sacarificação de biomassa microalgal visando a produção de bioetanol 3G
• Beneficiário: Maria Augusta de Carvalho Silvello
• Modalidade de apoio: Bolsas no Brasil - Doutorado