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친환경 황토 가공 신소재 적용 재배법에 의한 무의 품질 특성
서유진(Yoojin Seo),윤성진(Sungjin Yoon),김성군(SungGun Kim),조원우(Wonwoo Cho),이소라(Sora Lee),강호덕(Ho-duck Kang),윤문영(Moon-Young Yoon),박정극(Jung-Keug Park),유병승(Byoungseung Yoo),장윤혁(Yoonhyuk Chang),이영승(Youngseung Lee) 한국식품영양과학회 2014 한국식품영양과학회지 Vol.43 No.9
본 연구는 무의 재배 시 가공황토 처리 여부에 따른 무 시료의 품질 특성을 비교하고자 무 시료를 동일한 조건으로 재배하여 일반성분, 물성, 영양소, 기능적 특성을 분석하였다. 조회분과 조지방 함량에서 실험구1, 2가 대조구 대비 더 높은 함량을 나타내었다. 또한 분석된 모든 무기성분 및 비타민 함량에서 실험구1, 2가 대조구 대비 유의적으로 높은 함량을 나타내었다. 실험구1, 2에서 비타민 C의 함량이 대조구보다 높게 나타남과 동시에 항산화 활성 또한 유의적으로 높은 것을 확인할 수 있었다. 또한 견고성 측정 결과 대조구에 비하여 황토처리 된 실험구1, 2의 경우 저장기간 동안 견고성 감소율이 낮아 저장기간 동안 조직감의 유지가 가능한 것으로 나타났다. 따라서 무 재배 시 친환경 가공황토소재를 화학비료 대신 적용하여 재배할 경우 무의 저장성이 강화된 고품질의 무 생산이 가능해지고 기능성이 부가된 다양한 무를 활용한 고부가가치 제품이 가능해져 국내 무 시장의 활성을 촉진시킬 수 있다고 판단된다. Quality characteristics of radish treated with red clay-processed materials (RCPM) were investigated. Two different types of treatments using RCPM including a control were farm-raised in identical environments. General components, texture, nutrients, and antioxidant activities were performed. For general components analysis, total amounts of crude fat and ash were higher in radish treated with RCPM than in control. RCPM-treated radish showed higher contents of minerals (P, Mg, K, Zn, Mn, and Na) and vitamins (vitamin C, thiamin, and riboflavin) than those of control. RCPM-treated radish exhibited higher DPPH radical scavenging activities and total polyphenol contents than those of control, indicating higher antioxidant activities of radish raised by RCPM. In the textural analysis following refrigeration for 4 weeks, RCPM-treated samples showed a more stable texture and higher hardness values than those of control. Therefore, these results indicate that RCPM can be used to produce high-value radish of premium quality.
변산향유 유묘 생장에 미치는 파종용기, 토양조성, 파종량, 추비조건의 영향
이상인(Sang In Lee),박지우(Ji Woo Park),권예은(Ye Eun Kwon),김상용(Sang Young Kim),조원우(Wonwoo Cho),정미진(Mi Jin Jeong) 한국자원식물학회 2022 한국자원식물학회지 Vol.35 No.1
Elsholtzia byeonsanensis is a Korean native plant of the Lamiaceae family, and was first introduced in the Korean Journal of Plant Taxonomy. This plant has a short plant length of 20-35 ㎝, with leathery and glossy leaves. The purple flowers bloom in November, so they are highly useful as potted or ground cover ornamental plants. In this study, tray cell size (128, 162, and 200-cell trays), soil composition [horticultural soil (HS): decomposed granite (DG) 1:1, 1:2, and 1:4 (v:v)], seeding rate (1, 2, and 3 seeds per cell) and additional fertilizer concentrations (0, 250, 500, and 1000 ㎎/L Hyponex) were tested to find out the optimum seedling growth conditions. As a result of the study, E. byeonsanensis growth increased proportionally as the cell size of the tray increased. The growth was inhibited as the percentage of DG increased. As for the growth according to the seeding rate, plant height, plant width, leaf length, and leaf width decreased as the seeding rate increased, but there was no difference in the number of leaves, stem diameter, and root length. There was an increasing trend in seedling growth as the additional fertilizer concentration increased. Therefore, for producing E. byeonsanensis seedling, it is most effective to fill HS or HS:DG 1:1 in 128-cell trays, sow one seed per cell, and spray the seedling at 1000 ㎎/L for additional fertilizer.