Physicochemical and functional properties of dietary fibres extracted from the pseudostem of Musa balbisiana Colla

Taking banana variety Musa balbisiana Colla as raw material, dietary fibre from its pseudostem was extracted by using alkaline extraction method.Response surface methodology (RSM) was used to optimise the extraction process and investigate the impact of temperature, agitation speed, and extraction time on the yield of dietary fibre.According to the optimisation result, the following values for the extraction process parameters were found to be ideal: agitation speed of 300 rpm, temperature of 58.92 o C, and duration of 41.89 min.These conditions yielded 77.05% of dietary fibre.The extracted dietary fibre showed high dietary fibre content, insoluble dietary fibre in particular.It showed improved physicochemical and functional properties.These properties indicate the potential of the extracted dietary fibre as a nutraceutical with hypoglycemic and hypocholesterolemic properties.