한국식품과학회지 (Korean Journal of Food Science and Technology)
- 제18권3호
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- Pages.192-196
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- 1986
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- 0367-6293(pISSN)
쌀보리 전분의 화학적 호화
Cold Gelatinization of Naked Barley Starches
- Park, Yang-Kyun (Department of Food Science and Technology, Chonnam National University) ;
- Lho, Il-Hwan (Department of Food Science and Technology, Chonnam National University) ;
- Kim, Kwan (Department of Food Science and Technology, Chonnam National University) ;
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Kim, Sung-Kon
(Department of Food Science and Nutrition, Dankook University)
- 발행 : 1986.06.01
초록
쌀보리 품종인 송학과 명산 전분의 NaOH(0.14
Cold gelatinization of two naked burley (Songhak and Youngsan) starches in NaOH (0.14-0.21N) and KSC N (1.5-4.5M) was compared. Light transmittance of starch suspension in aqueous NaOH solution was higher in Youngsan starch than in Songhak starch. Viscosity of Youngsan starch was also higher at various starch concentrations (5-12.5%), however the critical concentration of NaOH for the gelatinization of Youngsan starch was lower by 0.1meq NaOH/g starch compared to Songhak starch. Two starches held a linear relationship between viscosity development rate and alkali concentration at a fixed starch concentration. The viscosity development rate of the starch was linearly decreased as starch concentration increased at a fixed alkali concentration. Gel volume of the starches was attained maximum at 2.5M KSCN, however Youngsan starch showed a higher volume and a less stability in KSCN than Songhak starch.
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