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http://dx.doi.org/10.9799/ksfan.2017.30.1.031

Quality and Antioxidant Characteristics of Commercially Available Mixed Grains in Korea  

Kim, Mi-Jung (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Ko, Jee Yeon (Dept. of Southern Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Lee, Kyung Ha (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Kim, Hyun-Joo (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Lee, Seuk Ki (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Park, Hye Young (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Sim, Eun-Yeong (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Oh, Sea Kwan (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Woo, Koan Sik (Dept. of Central Area Crop Science, National Institute of Crop Science, Rural Development Administration)
Publication Information
The Korean Journal of Food And Nutrition / v.30, no.1, 2017 , pp. 31-40 More about this Journal
Abstract
This study was undertaken to evaluate the quality characteristics and antioxidant characteristics of commercially available mixed grains in Korea. The quality characteristics of mixed grain products studied were the mixing ratio, water binding capacity, water solubility, swelling power, and pasting characteristics. The antioxidant characteristics assessed the total polyphenol, flavonoid contents, DPPH and ABTS radical scavenging activities. The mixing ratio of commercially available mixed grain products consisted of 5~25 kinds of grains, with maximum products containing 15-grain products. The water binding capacity, water solubility, and swelling power in commercially available mixed grain products were 99.83~122.83%, 6.91~39.26% and 7.76~86.92%, respectively. The peak, trough, breakdown, final and setback viscosity were $31.53{\pm}20.17RVU$, $25.24{\pm}13.22RVU$, $6.29{\pm}7.43RVU$, $50.27{\pm}25.84RVU$ and $18.74{\pm}8.68RVU$, respectively. Total polyphenol and flavonoid contents were $817.14{\sim}2,524.29{\mu}g\;GAE/g$ and $106.36{\sim}1,099.09{\mu}g\;CE/g$, respectively. The DPPH and ABTS radical scavenging activities were 31.91~151.70 mg TE/100 g and 28.09~119.92 mg TE/100 g, respectively. Products with high phenol content and radical scavenging activity were found to contain greater proportion of brown rice, colored rice, barley and soybean.
Keywords
cereal crop; mixed grains; quality characteristics; antioxidant characteristics;
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Times Cited By KSCI : 11  (Citation Analysis)
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