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고경혁(Gyung-Hyuck Ko),이근회(Keun-Hoi Lee),조성환(Sung-Hwan Cho) 한국식품영양과학회 1995 한국식품영양과학회지 Vol.24 No.5
광범위한 천연항균제로 그 활용이 고려되고 있는 grapefruit 종자추출물의 안전성을 검토하기 위하여 급성 경구독성, 피부자극 및 급성 안점막 자극시험을 수행하였다. 실험 흰쥐에 대한 급성 LD_(50)값은 3.75g/㎏이었으며, 피부에 대한 독성은 약한 편으로 부종 등의 병변이 거의 생기지 않았으나 눈에 대한 자극성이 있는 것으로 나타났다. Effects of grapefruit seed extract on the lethality, the primary skin irritation, and the acute eye irritation potentials were evaluated in rats. The acute oral LD_(50) of GFSE for Sprague-Dawley derived rats was 3.75g/㎏ with 95% confidence limits of 2.55 and 5.52g/㎏. Patch application to the intact and abraded skin of rabbits led to mild to moderate erythema and no or mild edema. Application to the eyes of rabbits led to severe corneal opacity, iritis, conjunctival erythema, edema, and discharge.
천연항균제처리에 의한 과채류의 선도유지 및 병해방지에 관한 연구 - 저장중 병리적 장해 방지를 중심으로 -
조성환(Sung Hwan Cho),서일원(Il Won Seo),이근회(Keun Hoi Lee) 한국응용생명화학회 1993 Applied Biological Chemistry (Appl Biol Chem) Vol.36 No.4
In order to retain the freshness of fruits and vegetables and to reduce the rate of disease damage, grafruit seed extract (GFSE), natural microorganism control agent, was applied during the preservation process of fresh fruits and vegetables. GFSE showed an effective inhibitory action against plant putrefactive bacteria and fungi which were involved in the decay of fruits and vegetables. Minimal inhibitory concentrations for GFSE against the microbes were in the range of 50 to 2,000 ppm. Direct observation of microbial cells and spores using electron microscopy showed their function was destroyed by the treatment of the dilute solutions of GFSE. Fresh Welsh onions, onions and red peppers treated with GFSE and stored in polyethylene film (0.1 ㎜) retained better quality in color and texture than the non-treated control. GFSE was efficient in controlling the germination of potatoes. It was observed that GFSE would reduce disease damages and have bactericidal and fungicidal properties during the storage of such fruits and vegetables as zucchinis, cucumbers, tomatoes and mandarin oranges.