Extraction and profiling of proteins in yellow powder from sweet potato starch wastewater using response surface methodology and proteomic approach.
J Food Sci
; 87(1): 339-352, 2022 Jan.
Article
em En
| MEDLINE
| ID: mdl-34954823
ABSTRACT
Sweet potato starch industry produce generous high soluble solid wastewater containing various biochemicals such as proteins. The wastewater could be spray dried into a product called yellow powder (YP). Proteins in the YP were recovered and profiled in this study. The extraction conditions were optimized on dependent variables of YP material-water ratio, pH, and temperature using response surface methodology (RSM). Maximum protein yield (61.2%) using RSM were observed at a material-water ratio of 50 (mg/L), pH 9.5, and extraction temperature of 30â. Subsequently, a total of 25 proteins were identified by proteomic analysis, which mainly were sporamins, ß-amylase, starch phosphorylase, polyphenol oxidase, and superoxide dismutase. The extraction and profiling of proteins from YP would contribute to a comprehensive utilization and added value of the wastewater produced by sweet potato starch processing industry. PRACTICAL APPLICATION This study reported the recovery (61.2%) of proteins and protein profile of yellow powder (byproducts) from sweet potato starch wastewater. These information could contribute to the valorization a yellow powder into high-value ingredients.
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Texto completo:
1
Coleções:
01-internacional
Temas:
Geral
Base de dados:
MEDLINE
Assunto principal:
Ipomoea batatas
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
J Food Sci
Ano de publicação:
2022
Tipo de documento:
Article
País de afiliação:
China