Feasiblity of Bioethanol Production from Cider Waste.
J Microbiol Biotechnol
; 28(9): 1493-1501, 2018 Sep 28.
Article
em En
| MEDLINE
| ID: mdl-30086622
Wastewater from cider factories (losses during transfers, products discarded due to quality policies, and products returned from the market) exhibit a Chemical Oxygen Demand greater than 170,000 mg O2/l, mainly due to the ethanol content and carbohydrates that are added to obtain the finished product. These effluents can represent up to 10% of the volume of cider produced, and they must be treated to meet environmental regulations. In this work, a process was developed, based on alcoholic fermentation of the available carbohydrates present in ciders. The impact of inhibitors at different pH, size and reuse of inoculums and different nutrient supplementation on the ethanol yield were evaluated. The use of a 0.5 g/l yeast inoculum and corn steep water as the nutrient source allowed for depletion of the sugars in less than 48 h, which increased the content of ethanol to more than 70 g/l.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Eliminação de Resíduos Líquidos
/
Etanol
/
Bebidas Alcoólicas
/
Biocombustíveis
/
Águas Residuárias
Idioma:
En
Revista:
J Microbiol Biotechnol
Ano de publicação:
2018
Tipo de documento:
Article
País de afiliação:
Argentina
País de publicação: