Development of oxidative starch of sweet potato (VitAtoTM) via hurdle technologies

Ismail, Muhammad Azim (2020) Development of oxidative starch of sweet potato (VitAtoTM) via hurdle technologies. [Project Paper] (Submitted)

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Abstract

Oxidized starch is a starch derivative that is prepared by treating native starches via physical andlor chemical methods to change its characteizatron. 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 ulfasonic combined with ozone treatnent is proposed. Ozone has the ability to elevate the thermodynamic oxidation potential, hence, the reactions can be performed at low temperatures. Considering that ultrasonic is a physical tool capable of mutilating the crystalline area in the starch granules resulting in the obliteration of the granular structures, which leads to an ideal method for the production of oxidised sweet potato starch. Sweet potato (VitAtoM) is used in this study as there is proof that its functionality is the same as tapioca starch. Sodium metabisulfite was used as isolation medium because it is an establish method to produce oxidised starch and risk of health effects from chemical is negligible, since the concentration used is very low. Physicochemical characteristics such as solubility, swelling power, amylose content, carboxyl content, gelatinization, viscosity, morphology properties and syneresis of oxidized sweet potato starch were studied. 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 used as an emulsifier, gum arabicreplacer, and binding agent in the food industry.

Item Type:	Project Paper
Subjects:	T Technology > TP Chemical technology
Faculty:	Faculty of Engineering
Depositing User:	Ms. AZLINA ZAINAL ABIDIN
Date Deposited:	03 Nov 2025 06:02
Last Modified:	26 Nov 2025 08:04
URI:	http://psaspb.upm.edu.my/id/eprint/2583

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