The modification of sago (Metroxylon Sagu) starch by combination of lactic acid hydrolysis and HO oxidation methods to increase baking expansion
AIP Conference Proceedings, ISSN: 1551-7616, Vol: 2197
2020
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Conference Paper Description
Human needs of food is the absolutely important thing that must be fulfilled, therefore food availability is the very important issue now. Indonesian still use rice for the main source of food, even though Indonesia still have another potential saving to meet national food needs like sago (Metroxylon Sagu). Hydrolysis of sago starch can improve physicochemical properties. The purpose of this research is to hydrolyse sago starch with lactic acid oxidation with HO to improve baking expansion. The variable is the influence of pH to the physicochemical properties of modified starch and the baking expansion, the influence of HO concentration to the physicochemical properties of modified starch and the baking expansion, and the influence of temperature of HO to the physicochemical properties of modified starch and the baking expansion. Based on the physicochemical and rheology properties of modified starch we know the quality of the starch. The modified starch is then analysed the physicochemical and rheology properties such as swelling power, solubility, and baking expansion. The swelling power, solubility, and baking expansion of the starch increase linearly as the temperature increase from 35°C through 50°C. The pH increases from 4 to 6, and the concentration of HO increase from 1% through 2%. However, the baking expansion decreases at pH 6 through pH 8 revealing an optimum acidity for the hydrolysis of sago starch.
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