Acid Modification of Sago Hampas for Industrial Purposes

Sunarti, Titi Candra and Derosya, Vioni and Yuliasih, Indah Acid Modification of Sago Hampas for Industrial Purposes. In: Sago Palm Multiple Contributions to Food Security and Sustainable Livelihoods. Springer, Singapore, pp. 262-281.

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Sago pith and sago hampas mainly consist of starch and fiber. In this research, acid modification of starch and fiber was conducted by high-temperature (autoclaving) and microwave-assisted treatments and slow or mild acid hydrolysis. Autoclaving and microwave-assisted treatments influenced the gelatinization and solubilization of starch granules to produce depolymerized starch and changed the fiber structure to become more amorphous forms. Heating in dilute acid produced high soluble total sugars with high dextrose equivalent, but the process also released hydroxymethylfurfural as undesired by-products. Slow or mild acid hydrolysis attacked the amorphous regions of starch and fiber. It did not change the starch and fiber crystallinity pattern but increased the degree of crystallinity. Acid modification techniques for sago starch and its fiber can be used for producing certain products such as starch sugar, fermentable sugars, and filler for biofoam production.

Item Type: Book Section
Subjects: S Agriculture > S Agriculture (General)
Divisions: Fakultas Teknologi Pertanian > Teknologi Hasil Pertanian
Lembaga Penelitian dan Pengabdian Masyarakat
Depositing User: Vioni Derosya
Date Deposited: 06 Aug 2018 10:24
Last Modified: 06 Aug 2018 10:24

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