Extraction and characterization of cassava starch cultivated in different locations in Sabah, Malaysia

Hasmadi Mamat and Harlina L. and Lee, Jau Shya and Mansoor Abdul Hamid and Jahurul, M.H A. and Zainol, M.K. (2021) Extraction and characterization of cassava starch cultivated in different locations in Sabah, Malaysia. Food Research, 5. pp. 44-52. ISSN 2550-2166

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Abstract

This work aimed to determine the physicochemical and functional properties of starch cassava grown in two different locations in Sabah, namely Tawau and Semporna. In this study, the starch of the cassava was extracted using a wet method and analysed for its physicochemical and functional properties. The total starch content of cassava grown in Semporna showed a higher value (61.21 g/100 g) compared to the sample from Tawau (51.77 g/100 g). No significant difference (p>0.05) observed for starch yield extracted from these two locations. However, there was a significant difference (p<0.05) showed for total starch, resistant starch and amylose content. The amylose content of starch isolated from Semporna (23.16%) was higher than from Tawau (13.87%). Scanning electron microscope revealed that starch isolated from both locations had smooth surfaces with some granules spherical, elongated and irregular in shape. Cassava starch from Semporna exhibited a high value of swelling power (6.85%) compared to Tawau (4.07%), and they were significantly different (p<0.05). The solubility values of the starch samples from Tawau and Semporna were 28.48% and 24.34%, respectively. The pH was observed to be lower for cassava starch isolated from Tawau (4.80) than for starch obtained from Semporna (5.49). The water absorption capacity of starch from Semporna absorbed slightly more water than starch from Tawau, with values of 76.51% and 63.64%, respectively. Pasting properties results showed no significance for all profiles measured except for setback viscosity. No significant differences (p>0.05) were observed for all gelatinisation and retrogradation properties. This study suggests that location influenced the physical, chemical and functional properties of cassava’s starch.

Item Type:	Article
Keyword:	Cassava starch, Amylose/amylopectin, Functional properties, Pasting properties, Gelatinisation, Retrogradation
Subjects:	H Social Sciences > HD Industries. Land use. Labor > HD28-9999 Industries. Land use. Labor > HD9000-9999 Special industries and trades > HD9000-9495 Agricultural industries S Agriculture > SB Plant culture > SB1-1110 Plant culture > SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
Department:	FACULTY > Faculty of Food Science and Nutrition
Depositing User:	SITI AZIZAH BINTI IDRIS -
Date Deposited:	22 Jan 2024 10:47
Last Modified:	22 Jan 2024 10:47
URI:	https://eprints.ums.edu.my/id/eprint/36476

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