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백경환(Kyeong-Hwan Baek),조덕조(Doekjo Jo),윤석란(Sung-Ran Yoon),김귀란(Gui-Ran Kim),박주환(Ju-Hwan Park),이기동(Gee-Dong Lee),김정숙(Jeong-Sook Kim),김유리(Yuri Kim),한범수(Bumsoo Han),권중호(Joong-Ho Kwon) 한국식품과학회 2013 한국식품과학회지 Vol.45 No.1
반응표면분석법을 이용하여 적양배추 종자의 전자선 처리조건과 재배조건에 따른 새싹채소의 이화학적 및 관능적 품질특성을 분석하여 유통에 적합한 최적조건을 모색하였다. 수분함량의 경우 회귀식의 R<SUP>2</SUP>가 0.9638이었고 조사선량 및 재배기간에 많은 영향을 받고 있었다. Total phenolics 함량은 회귀식의 R<SUP>2</SUP>가 0.9117이었고 조사선량에 많은 영향을 받았으며, carotenoid 함량 (R<SUP>2</SUP>=0.8338)의 경우 조사선량, 재배기간, 저장기간의 순으로 조건변수의 영향력이 작용하였다. 관능적 품질 역시 전자선 조사선량에 가장 크게 영향을 받아 선량의 증가에 따라 관능평점이 감소하는 경향을 보여주었다. 재배 및 저장조건의 최적화를 위해 total phenolics 함량 및 전반적 기호도를 superimposing한 결과 최적조건은 조사선량 2.2-3.8 kGy, 재배기간 3.0-4.0일 및 저장기간 2.0-3.0일 범위로 예측되었다. This study was carried out to find the optimal conditions for red cabbage seed sprouts in terms of their physicochemical and sensory qualities by electron-beam irradiation, cultivation and storage using the response surface methodology (RSM). Moisture content (R²=0.9638) was affected by irradiation dose and cultivation time. Total phenolics content (R²=0.9117) was mainly affected by irradiation dose, but carotenoid content (R²=0.8338) was affected in the order of irradiation dose, cultivation time and storage time. Sensory properties were also affected by irradiation dose, and thus scores decreased as irradiation dose increased. The optimum conditions estimated by superimposing total phenolics content and overall acceptance were 2.2-3.8 kGy of the irradiation dose, 3.0-4.0 days of cultivation and 2.0-3.0 days of storage.
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김유리,한범수,김진규,강호 한국물환경학회 2004 한국물환경학회지 Vol.20 No.4
The use of electron beam irradiation was investigated to disinfect total coliforms in the secondary sewage treatment effluent. Unchlorinated secondary effluent was irradiated at different dose of 0.2~1.0 kGy by 1 MeV, ELV-4 Model electron beam accelerator. It is interesting to note that a 100% reduction in total coliforms and total colonies were achieved until a dose of approximately 0.8 kGy. Even at low dose of 0.2 kGy, the total coliforms and total colonies were successfully inactivated to the level of satisfying the new effluent discharge guideline. Besides disinfection of total coliforms, approximately a 50% removal in biochemical oxygen demand was pronounced at a dose of 0.2 kGy. More than 20% removal in suspended solids and turbidity was also observed at a dose of 1.0 kGy. The application of electron beam irradiation appeared to be one of options to reuse sewage treatment effluent as agricultural or industrial water.
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