Abstract
Germinated brown rice (GBR) was produced from FARO 44 rice cultivar by sterilizing the paddy in sodium hypochlorite solution, steeping it in potable water and germination of the de-husked grain. Germination temperatures were maintained at 30 and 40oC for 12 and 36 h. The mould content, functional, cooking and sensory properties of the GBR were compared to non-germinated brown rice (BR) and non-germinated parboiled milled rice (MR) which were used as controls. The results showed that germination temperatures did not significantly affect (p<0.05) the parameters analyzed. The germinating conditions did not encourage the growth of moulds. The foaming capacity (55.73%), foam stability (43.11%), water absorption capacity (1.24 g/g), and oil absorption capacity (1.07 g/g) of BR did not differ significantly (p<0.05) from that of MR but they increased significantly in GBR to the range of 66.43-73.05%, 60.48-74.715%, 2.15-2.88 g/g, and 1.95-3.08 g/g respectively. These values were significantly higher (p<0.05) at germination duration of 36 h than 12 h. The bulk density (0.93 g/cm3) and swelling power (6.78 g/g) of BR did not differ from that of MR but they decreased significantly (p<0.05) in GBR to the range of 0.61-0.90 g/cm3 and 2.67-4.70 g/g respectively. Much significantly lower (p<0.05) values were obtained at a germination duration of 36 h. The cooking time was least in MR (11.0 min) against BR (18.0 min) and GBR (12.0-15.0 min), and the water uptake ratio (g water/ g rice) was also least in MR (2.00) against BR (2.19) and GBR (2.20-2.37). MR and GBR germinated for 12 h were accepted while BR was rejected.
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