Phenolics extraction from sweet potato peels: modelling and optimization by response surface modelling and artificial neural network.

ABSTRACT: Sweet potato peels (SPP) are a major waste generated during root processing and currently have little commercial value. Phenolics with free radical scavenging activity from SPP may represent a possible added-value product for the food industry. The aqueous extraction of phenolics from SPP was studied using a Central Composite Design with solvent to solid ratio (30-60 mL g^-1), time (30-90 min) and temperature (25-75 °C) as independent variables. The comparison of response surface methodology (RSM) and artificial neural network (ANN) analysis on extraction modelling and optimising was performed. Temperature and solvent to solid ratio, alone and in interaction, presented a positive effect in TPC, ABTS and DPPH assays. Time was only significant for ABTS assay with a negative influen

SUBMITTER: Anastacio A 

PROVIDER: S-EPMC5223245 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature