A simple biorefinery concept to produce 2g-lactic acid from Sugar Beet Pulp (SBP): A high-value target approach to valorize awaste stream

Autor: Rubens Maciel Filho, Regiane Alves de Oliveira, Roland Schneider, Betânia Hoss Lunelli, Carlos Eduardo Vaz Rossell, Joachim Venus
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0106 biological sciences
Sucrose
food.ingredient
Sugar beet pulp
Pectin
020209 energy
Pharmaceutical Science
02 engineering and technology
engineering.material
01 natural sciences
Article
Analytical Chemistry
lcsh:QD241-441
Bipolarmembrane electrodialysis
Hydrolysis
chemistry.chemical_compound
food
Bioreactors
lcsh:Organic chemistry
010608 biotechnology
Yeasts
Drug Discovery
0202 electrical engineering
electronic engineering
information engineering
Physical and Theoretical Chemistry
Sugar
bipolar membrane electrodialysis
biology
Ethanol
Chemistry
Pulp (paper)
Organic Chemistry
fungi
food and beverages
Lactic acid
biology.organism_classification
Pulp and paper industry
Biorefinery
Chemistry (miscellaneous)
Fermentation
engineering
Molecular Medicine
Second-generation
Bacillus coagulans
Sugar beet
Beta vulgaris
Zdroj: Molecules
Volume 25
Issue 9
Molecules, Vol 25, Iss 2113, p 2113 (2020)
DOI: 10.34657/5405
Popis: 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&minus
1h&minus
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.
Databáze: OpenAIRE
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