Physicochemical Properties of Starch in Sago Palms (Metroxylon sagu) at Different Growth Stages
2008
Tie, Adrina Pei-lang | Karim, Alias A. | Manan, Dos Mohamed A.
This study was aimed to examine the physicochemical properties of starch extracted from two different points (base and mid heights) of the sago palms trunks (Metroxylon sagu) of different physiological growth stages namely, 'Plawei', 'Bubul', 'Angau Muda', 'Angau Tua' and 'Late Angau Tua' stages. The physicochemical properties of sago starch studied were the morphology of starch, amylose content, particle size and distribution profile, pasting, thermal and retrogradation profiles. The results showed significant differences in the amylose and amylopectin content as well as in the granule sizes of starch from the different growth stages. Variation was observed in the proportions of granule sizes and pasting properties of starch from base and mid heights of the different growth stages while slight or insignificant differences was observed in the thermal properties of sago starch.
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