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에틸렌이 유도한 강낭콩 잎 키틴분해효소의 정제 및 특성
박노동,이춘명,박남용 ( Ro Dong Park,Choon Myong Lee,Nam Yong Park ) 생화학분자생물학회 1991 BMB Reports Vol.24 No.2
Chitinase (EC 3.2.1.14), a potential pathogensis-related protein, was induced in leaves of 30-day-old bean (Phaseolus vulgaris) plants with treatment of 10 nl/ml ethylene for 30 hr. The enzyme was extracted in sodium citrate buffer (pH 5.0), and then purified by heat treatment, (NH₄)₂SO₄ precipitation, chitin-affinity and Sephadex G-75 chromatographies. Chitinase was enriched 22.5-fold with a yield of 29%. Its apparent molecular weight was estimated on SDS-PAGE to be 30 kD. Chitinase showed optimum pH 5.0 and broad pH stability, and showed thermal stability below 50℃. K_m and V_(max) values of the purified chitinase were 0.36 ㎎/㎖ and 0.7 nmole G1cNAc/min, respectively, for swollen chitin as a substrate. Chitinase was significantly inhibited by 10 mM Cu^(++), Hg^(++), S₂O₃^(--), S₂O₄^(--) or SO₃^(--) in reaction mixtures. Antibody was raised in rabbits against the chitinase and used for specific immunodetection of the enzyme.
강낭콩 잎에서 스트레스에 따른 키틴분해효소의 특이적 유도
박노동,이춘명,전덕영 ( Ro Dong Park,Choon Myong Lee,Deok Young Jhon ) 생화학분자생물학회 1992 BMB Reports Vol.25 No.2
We studied the induction of chitinase (EC 3.2.1.14), a pathogenesis-related protein, in bean plants under stress conditons. The chitinase was barely detected in healthy plant leaves but was significantly induced by ethylene, pathogen Fusarium oxysporum, or wounding, which was tested by enzyme activity assay, western blotting, and activity staining. Six isozymes of bean chitinase were separated in 12.5% SDS-PAGE. They were differentially induced when bean plants were treated with ethylene, F. oxysporum, or wounding.
나라수 힐링액 샴푸와 토닉의 모발 유수분과 양모 효능 및 안전성 연구 -단일기관, 단일군 전후 비교 예비 인체 적용 시험-
이규영,홍철희,이성진,선승호,이춘명,Lee, Kyou-Young,Hong, Chul-Hee,Lee, Sung-Jin,Sun, Seung-Ho,Lee, Chun-Myeong 대한한방안이비인후피부과학회 2014 한방안이비인후피부과학회지 Vol.27 No.3
Objectives : This study was carried out to examine the change of scalp and hair condition and to evaluate the efficacy of hair growth, subject's satisfaction and safety of the Narasoo healing shampoo and Hair tonic Methods : We offered 25 subjects Narasoo healing shampoo and Hair tonic and observed the changes among the starting point, 3rd week and 6th week. Study methods include the measurement of water and sebum content of the scalp, photo of scalp and hair, thermographic images and questionnaires. Results : It is estimated that Narasoo healing shampoo and Hair tonic have the positive effects on increase of water contents hair gloss, removal of excessive hair keratin, facilitation of hair growth, and decrease of sebum contents. Conclusions : Several meaningful effects of Narasoo healing shampoo and Hair tonic are observed in this study. Additional research is needed forward.