Instant Porridge from Germinated Brown Rice
Main Article Content
Abstract
Germinated brown rice (GBR) has high nutritional value that related to health benefit. This study investigated the factors effecting the nutritional value in GBR of 2 rice varieties (Khao Dawk Mali 105 and Pathumthani 1). The GBR was processed to instant porridge and the shelf life of instant porridge from GBR was studied. GBR of 2 varieties were prepared by having germination time for 22 and 26 hours (soaking in water for 6 hours then incubated for 16 - 20 hours) in 2 conditions (dark and normal) at 30 °C. The nutritional value in GBR was analyzed e.g. total amino acids, proteins, reducing sugar, phenolic compounds and gamma oryzanol. GBR produced in the dark condition for 26 hours contained more nutritional value than in milled rice and brown rice, containing total amino acids 18 - 19 mg/100 g, reducing sugar 1,003 -1,058 mg/100 g, phenolic compounds 59 - 65 mg/100 g and gamma oryzanol 45 - 56 mg/100 g. Instant porridge from GBR was produced from 2 rice varieties and kept in the room temperature (25-35 °C) to test for sensory taste every month. The instant porridge from GBR of 2 rice varities had shelf life lasted for 5 months.
Article Details
References
AOAC. 1990. Official Method of Analysis. 15th ed. Association of the Analytical Chemists. AOAC, Washington, DC. 1,298 p.
Beasley, Z. 2004. Soaking brown rice increase its nutritional value. American Chemical Society, December 16, 2000.
DOMER company. 2004. GBR's Power. December 16, 2004. Available source : http://hatsuga.com.
Emmons, L.C., D.M. Peterson and G.L. Paul. 1999. Antioxidant capacity of oat (Avena sativa L.) extracts. 2. In vitro antioxidant activity and contents of phenolic and tocol antioxidants. J. Agric. Food Chem. 47(12) : 4894-4898.
Kamatsuzaki, N., T. Kikuichi, T. Hidechika, S. Tadanao, S. Naoto and K. Toshinori. 2007. Effect of soaking and gaseous treatment on GABA content in germinated brown rice. J. Food Eng. 78 : 556-560.
Miller, G.L. 1959. Use of dinitrosalicylic acid reagent for determination of reducing sugar. Biotechnol. Bioeny. 5 : 193.
Osawa, M.Z., K. Goto and K. Tsukahara. 2004. Clinical study of germinated brown rice on Sawapikari. World Rice Research Conference 2004, 5-7 November, 2004. Tsukuba International Congress Center (Epochal Tsukuba) Tsukuba, Ibaraki, Japan.
Rong, N., L.M. Ausman and R.J. Nicolosi. 1997. Oryzanol decreases cholesterol absorption and aortic fatty streaks in hamsters. Lipids 32 : 303-309.
Seki, T., R. Nagase, M. Torimitsu, M. Yanagi, Y. Ito, M. Kise, A. Mizukuchi, K. Hayamizu and T. Ariga. 2005. Insoluble fiber is a major constituent responsible for post-prandial blood glucose concentration in the pre - germinated brown rice. Biol. Pharm. Bull. 28(8) : 1539-1542.
Tian, S., K. Nakamura and H. Kayahara. 2004. Analysis of phenolic compounds in white rice, brown rice and germinated brown rice. J. Agric. Food Chem. 52 : 4808-4813.
Varanyanoud, W., P. Tungtrakul, V. Surojanametakul, L. Watanasirithum and W. Luxiang. 2005. Effect of water soaking on gamma-aminobutyric acid (GABA) in germ of different Thai rice varieties. Kasetsart J. (Nat. Sci.) 39 : 411-415.
Xu, Z. and J.S. Godber. 2000. Comparison of supercritical fluid and solvent extraction methods in extracting oryzanol from rice bran. JOACS, 77(5).
Zhou, Z., K. Robards, S. Helliwell and C. Baanchard. 2004. The distribution of phenolic acids in rice. Food Chem. 87 : 401-406.