Influence of aging on culinary and chemical properties of Basmati 385 rice grain
2004
Ali, L. | Ali, A. | Karim, M.A. | Ali, S.S. | Hassan, G. (Rice Research Inst., Kala Shah Kaku (Pakistan))
The influence of aging of milled rice on physico-chemical characteristics was studied during 1989-90 and 1990-91. Rice from freshly harvested paddy was stored in a cloth bag at room temperature. Analysis of rice was done for 24 months, starting from zero at a uniform interval of one month. However, the effect of aging on cooking time was not significant. Water absorption and volume expansion increased throughout the aging period. Similarly, cooked grain length was minimum (13.9 mm) in freshly milled rice, it increased gradually with the storage period and obtained a maximum value (15.5 mm) after 2-year storage. Bursting of grains during cooking decreased from 11.5% to 2.0% on storage. Loss of total solids in washing water and gruel was the highest (14.9%) at the beginning of the experiment which decreased significantly and reached the lowest value (3.2%) at the completion of the studies. The effect of aging on protein content, alkali spreading value and gel length was, however, non-significant. Amylose content decreased slightly during aging but remained in the intermediate amylose group.
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