RT info:eu-repo/semantics/article
T1 Carrot discard as a promising feedstock to produce 2,3-butanediol by fermentation with P. polymyxa DSM 365
A1 López Linares, Juan Carlos
A1 Mateo Martínez, Adrián
A1 Coca Sanz, Mónica
A1 Lucas Yagüe, Susana
A1 García Cubero, María Teresa
K1 Agriculture
K1 Plant Science
K1 Bioengineering
K1 Zanahorias - Cultivo
K1 Química industrial
K1 QuÍmica organica
K1 Alcoholes - Oxidación
K1 Enzymatic hydrolysis
K1 Biodiésel - Fabricación
K1 Residuos orgánicos
K1 2,3-butanodiol
K1 3303 Ingeniería y Tecnología Químicas
K1 3308 Ingeniería y Tecnología del Medio Ambiente
AB The valorization of fruit and vegetable residues (such as carrot discard) and their microbial conversion into 2,3-butanediol (BDO) can be considered as a very interesting way to reduce food waste and sustainably originate high value-added products. This work analyzes the valorization of carrot discard as feedstock for 2,3-butanediol (BDO) production by Paenibacillus polymyxa DSM 365. The influences of stirring and the presence of tryptone (nitrogen source) are studied. Furthermore, in order to evaluate the influence of the pre-culture medium (nitrogen source, nutrients, and pH) and the substrate, fermentation assays in simple and mixture semi-defined media (glucose, fructose, and/or galactose) were also carried out. As a result, 18.8 g/L BDO, with a BDO yield of 0.43 g/g (86% of its theoretical value), could be obtained from carrot discard enzymatic hydrolysate at 100 rpm, no tryptone, and pre-culture Häßler medium. No hydrothermal pre-treatment was necessary for BDO production from carrot discard, which increases the profitability of the process. Therefore, 18.8 g BDO, as well as 2.5 g ethanol and 2.1 g acetoin by-products, could be obtained from 100 g of carrot discard (dry matter).
PB MDPI
SN 2306-5354
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/66594
UL https://uvadoc.uva.es/handle/10324/66594
LA eng
NO Bioengineering, 2023, Vol. 10, Nº. 8, 937
NO Producción Científica
DS UVaDOC
RD 11-may-2024