Effects Of Gamma Irradiation On Starch Granule Structure And Physicochemical Properties Of Unripe Musa Acuminata And Musa Cavendish

Abstract

The present study was aimed to isolation of starch and modified by gamma-irradiation at 5 kGy dose. The objective of the study was to investigate the SEM, FTIR, amylose content and physico-chemical and functional, flow properties. The L*, a* (4.56-2.54), and b* (11.81-9.49) values were also investigated for both starches. The results revealed that the flow properties of both starches were found to be poor. The moisture (7.9-10.23 %), ash, and fat content were decreased while fibre (0.71-0.94 %) increased with the doses. Whereas the WAC (7.57-11.48 g/g), OAC (8.13-11.66 g/g) increased while emulsion activity (11.16-5.37 %) and stability (65.21-42.24 %) were decreased with the dose. The swelling power was decreased while the solubility index was increased with the dose. Freeze-thaw stability, syneresis, and transmittance were decreased with the dose. The SEM and FTIR study indicated that tightly packed, the formation of patterns and cracks, fractures, breaches, cavities, and holes were seen in modified starch.