A Simple Biorefinery Concept to Produce 2G-Lactic Acid from Sugar Beet Pulp (SBP): A High-Value Target Approach to Valorize a Waste Stream

Autor(es)

de Oliveira, Regiane Alves ^{[1, 2, 3]} ; Schneider, Roland ^[2] ; Lunelli, Betania Hoss ^[4] ; Vaz Rossell, Carlos Eduardo ^[5] ; Maciel Filho, Rubens ^[1] ; Venus, Joachim ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, Sch Chem Engn, Lab Optimizat Design & Adv Proc Control, UNICAMP, Ave Albert Einstein 500, BR-3083852 Campinas - Brazil

^[2] Leibniz Inst Agr Engn & Bioecon eV ATB, Dept Bioengn, Max Eyth Allee 100, D-14469 Potsdam - Germany

^[3] Tech Univ Denmark, Novo Nordisk Fdn Ctr Biosustainabil, DK-2800 Lyngby - Denmark

^[4] Pontificia Univ Catolica Campinas PUC Campinas, Fac Quim, Ctr Ciencias Exatas Ambientais & Tecnologias, Rua Prof Doutor Euryclides Jesus Zerbini 1516, BR-1087571 Campinas - Brazil

^[5] Univ Estadual Campinas, Interdisciplinary Ctr Energy Planning NIPE, UNICAMP, Rua Cora Coralina 330, BR-13083896 Campinas - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Molecules; v. 25, n. 9 MAY 2020.
• Citações Web of Science: 1

Resumo

Lactic acid is a high-value molecule with a vast number of applications. Its production in the biorefineries model is a possibility for this sector to aggregate value to its production chain. Thus, this investigation presents a biorefinery model based on the traditional sugar beet industry proposing an approach to produce lactic acid from a waste stream. Sugar beet is used to produce sugar and ethanol, and the remaining pulp is sent to animal feed. Using Bacillus coagulans in a continuous fermentation, 2781.01 g of lactic acid was produced from 3916.91 g of sugars from hydrolyzed sugar beet pulp, with a maximum productivity of 18.06 g L(-1)h(-1). Without interfering in the sugar production, ethanol, or lactic acid, it is also possible to produce pectin and phenolic compounds in the biorefinery. The lactic acid produced was purified by a bipolar membrane electrodialysis and the recovery reached 788.80 g/L with 98% w/w purity. (AU)

• Processo FAPESP: 13/26290-5 - Otimização e produção de ácido lático a partir de cana-de-açúcar
• Beneficiário: Regiane Alves de Oliveira
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto
• Processo FAPESP: 16/14830-3 - Produção de ácido lático a partir de hidrolisado lignocelulósico utilizando fermentação com reciclo de células de Bacillus coagulans
• Beneficiário: Regiane Alves de Oliveira
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado Direto