| Abstrakt: |
The valourization of banana by-products is an area where extensive research has been undertaken. However, there is a need to thoroughly probe into their bioactive components and nutraceutical properties for utilization in the food industry. The present study is an attempt to evaluate the phytochemical composition and nutraceutical properties of ethanolic extracts of banana pseudostem and inflorescence of three popular cultivars in Kerala, a state in South India. Palayankodan(Musa× paradisiaca Mysore AAB group), Nendran(Musa× paradisiaca AAB group), and Njalipoovan(Musa× paradisiaca AB group) were the cultivars of interest.The extracts were found to be good source of phytochemicals; total phenolic contents in the range of 7.26 to 15.34 mg GAE/ g of extract and total flavonoid content in the range of 180.71 and 618. 96 mg QE/g of the extract. Furthermore, antioxidant assays were conducted, in which all the extracts showed fair DPPH radical scavenging activity in terms of EC50values ranging from 0.48 to 0.92 mg/mL. The pseudostem extracts showed better ABTS radical scavenging activity in comparison to the inflorescence extract in all the varieties. However, inflorescence extracts exhibited a better reducing activity. Similarly, the extracts gave promising results for anti-diabetic activity, in terms of in vitro α-amylase and α-glucosidase inhibition activity. Phenolics present in the extracts were identified and quantified using the HPLC analysis. The present investigation clearly showed that banana by-products are a storehouse of bioactives, with great potential to be utilized as nutraceuticals in the food industry. |
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