Development of Modified Glutinous Rice Powder by the Pregelatinization Method to Improve the Quality of Cooked High Amylose Rice

Orawan Oupathumpanont^1, and Sopida Wisansakkul²

¹Department of Food & Nutrition, Faculty of Home Economics Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand

²Department of Home Economics, Faculty of Home Economics Technology, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand

Cite this paper:
Orawan Oupathumpanont and Sopida Wisansakkul. Development of Modified Glutinous Rice Powder by the Pregelatinization Method to Improve the Quality of Cooked High Amylose Rice. Journal of Food and Nutrition Research. 2021; 9(7):375-381. doi: 10.12691/jfnr-9-7-8

Abstract

This research aimed to development modify glutinous rice powder by a pregelatinization method in a drum dryer to improve the physical quality of cooked high amylose rice (Sao Hai rice). Appropriate conditions in the pregelatinization method were studied, 2 factors in the study were gelatinization temperature modified at 3 levels of 120, 130, and 140°C, and the drum dryer speed modified at 2 levels of 1 and 2 rpm. Factorial in Completely Randomized Design (CRD) was used to design the experiment. The modified glutinous rice powder was subjected to physical, chemical, and microbial quality analysis. Next, appropriate conditions were studied for cooking using modified glutinous rice powder. Two factors in the study were the amount of modified glutinous rice powder, at 2 levels of 10% and 15%, and the time spent soaking the rice, at 2 levels of 20 and 30 minutes. The experiment was designed using factorial in CRD. Consumer acceptance of the modified glutinous rice powder was tested among 100 people. The experimental results revealed that the appropriate condition for modifying glutinous rice powder using the pregelatinization method was a gelatinization temperature of 130°C and a drum dryer speed of 2 rpm. In terms of physical quality, the water activity (a_w) of the obtained modified glutinous rice powder was 0.26. With regard to chemical quality, amylose and amylopectin contents were 5.81% and 94.1%, respectively. In terms of microbial quality, the total plate count, yeast and mold met standards of dried food. The appropriate condition for using the modified glutinous rice powder to cook Sao Hai rice required 15% of modified glutinous rice powder with 30 minutes of soaking the rice. The overall consumer acceptance score was very high.

Keywords:
modified flour Glutinous Rice pregelatinization Sao Hai Rice drum dryer

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References:

[1]	Wada, M. Tsubone, Y. Hamanhi and Ogata, T. “Evaluation and use of physicochemical properties as index trains for selecting rice cultivars with extremely high palatability,” Japanese Journal of Crop Science, 75(1), 38-43, 2006.
[2]	Lyon, B.G. Champagne, E.T. Vinvard, B.T. and Windham, W.R. “Sensory and instrumental relationships of texture of cooked rice from selected cultivars and postharvest handling practices,” Cereal Chemistry, 77(1), 64-69, January 2000.
[3]	Luechai, A. and Anchali, P. “Chek Shuey Kaab Keaw Sao Hai Rice,” Kasikorn News, 79(4), 9-13, 2006.
[4]	Vallous, N.A. Gavrielidou, M.A. Karapantsios T.D. and Kostoglou, M. “Performance of a double drum dryer for producing pregelatinized maize starches,” Journal of Food Engineering, 51(3), 171-183, February 2002.
[5]	Cuevas-Rodriguez, E.O. Verdugo-Montoya, N.M. Angulo-Bejarano, P.I. Milam-Carrillo, J. Mora-Escobedob, R. and Bello-Perez, L.A. “Nutritional properties of reknown flour from quality protein maize (Zea Mays L),” LWT, Food Science Technology, 39, 1072-1079, December 2006.
[6]	Anderson, R. A. Conway, H. F. Pfeifer, V. F. and Griffin, E. L. “Gelatinization of corn grits by roll and extrusion cooking," Cereal Science Today, 14, 4-12, 1969.
[7]	Juliano, B.O. Perez, C.M. and Blakeney, A.B. “International Cooperative testing on the amylose content of milled rice,” Starch, 33(5): 157-162, 1981.
[8]	AOAC, Official methods of analysis (21st ed.), Association of Official Analysis Chemistry, Washington DC, 2019.
[9]	Nitaya, R. Basic Food Processing, Odeon Store, Bangkok, 21-23, 2001.
[10]	Chutima, A. Comparative Study on Instant Powder Quality of Lemongrass (Cymbopogon citratus Stapf) Obtained from Drum Dying and Foam-Mat Drying [Research]. Phitsanulok: Naresuan University. 2008.
[11]	Panorjit, N. Oranut, S. Suphachai, P. and Nirun, N. Yanang Processing Powder and Application in Food Product [Research]. Nakhon Ratchasima: Rajamangala Univerity of Technology Isan. 2015.
[12]	Klanarong, S. and Kueakun, P. Starch Technology (4th ed.). Bangkok: Kasetsart University Press. 2007.
[13]	Piyaphon, S. Characterization of Physicochemical Properties of Glutinous Rice and Mixed Glutinous-Hom-Mali Rice Flour and Their Utilization for Butter Cake [Research]. Bangkok: Kasetsart University. 2011.
[14]	Wada, T. Umemoto, T. Aoki, N. Tsubone, M. Ogata, T. and Kondo, M. “Starch Eluted from Polished Rice during Soaking in Hot Water is Related to the Eating Quality of Cooked Rice,” Journal of Applied Glycoscience, 58(1), 13-18, 2010.
[15]	Kasem, N. Suchada, L. Ratchada, T. and Wichien, V. “Optimized formulation and cooking conditions of Khaw Dawk Mali 105 and Chainat 1 mixed rice,” KKU Research Journal, 8(1), 20-33, 2003.