Development of oxidative starch of sweet potato (var Anggun) via hurdle technologies

Sabri, Nurulamira (2020) Development of oxidative starch of sweet potato (var Anggun) via hurdle technologies. [Project Paper] (Submitted)

Text lp FK 2020 43.pdf Download (63MB)

Abstract

Oxidized starch is a starch derivative that is prepared by treating native starches via physical and/or chemical methods to change its characterization. However, chemical oxidations might lead to low oxidized starch yield because of the loss of small molecules produced by the starch breakdown and generate wastewater containing a high concentration of salts, causing wastewater disposal problems. For those reasons, starch oxidation via ultrasonic combined with ozone treatment is proposed in this study. Ozone has the ability to elevate the thermodynamic oxidation potential, hence, the reactions can be performed at low temperatures. Whereas ultrasonic is a physical method that able to mutilate the crystalline region in the starch granules resulting in the obliteration of the granular structures, which contributes to an ideal method to develop oxidized sweet potato starch. Sweet potato (var Anggun) was used in this study because it has the ability to replace other sources of starch utilized in industry as the production supply of Anggun in Malaysia is over the demand. Physicochemical characteristics such as solubility, swelling, and thermal properties of oxidized sweet potato starch was determined. The results showed low viscosity, high solubility, high swelling power and improved thermal properties. The oxidized starch obtained can be further used as an emulsifier, gum arabic replacer, and binding agent in the food industry.

Item Type:	Project Paper
Faculty:	Faculty of Engineering
Depositing User:	Ms. AZLINA ZAINAL ABIDIN
Date Deposited:	19 Oct 2023 08:01
Last Modified:	19 Oct 2023 08:01
URI:	http://psaspb.upm.edu.my/id/eprint/1600

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