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한국산 고등 균류의 성분 연구 ( Ⅵ ) Amanita Spissaceea 및 Amanita Vaginata 의 아미노산
김병각,이영수,최응칠,심미자,이영남 ( Byong Kak Kim,Young Soo Lee,Eung Chil Choi,Mi Ja Shim,Young Nam Lee ) 생화학분자생물학회 1977 BMB Reports Vol.10 No.1
Amanita spissacea which is indiginous to Korea and Japan and Amanita vaginata which is an edible mushroom, grow wildly in Korea. However, their constituents have never been studied. These higher fungi were collected in the Gyeong Gi Province, Korea, and analyzed for their free and total amino acids, using gas chromatography and amino acid auto-analyzer. Fourteen free amino acids (alanine, glycine, valine, leucine, isoleucine, threonine, aspartic acid, methionine, phenylalanine, histidine, tyrosine, lysine, arginine, and tryptophan) were identified in both species. The contents of eight free essential amino acids in A. spissacea and a. vaginata were : threonine 7.26 and 3.15 ㎎/g, lysine 2. 85 and 2.5 ㎎/g, methionine 2.48 and 2.70 ㎎/g, phenylalanine 1.35 and 0.98 ㎎/g, isoleucine and leucine combined 1.65 and 1.05 ㎎/g, valine 1.24 and 0.68 ㎎/g, and tryptophan 0.90 and 0.93 ㎎/g, respectively. The total contents of the respective amino acids in A. spissacea and A, vaginata were: lysine 5.18 and 12.28 ㎎/g, histidine 3.00 and 5.12 ㎎/g, arginine 7.76 and 9.80㎎/g, threonine 8.88 and 8.00 ㎎/g, glutamic acid 20.10 and 34.94 ㎎/g, alanine 10.22 and 11.62 ㎎/g, valine 9.64 and 8.94 ㎎/g, glycine 8.32 and 8.30 ㎎/g, methionine 1.90 and 1. 63 ㎎/g, isoleucine 6.66 and 7.88 ㎎/g, leucine 12.74 and 14.00 ㎎/g, phenylalanine 7.00 and 7.82 ㎎/g, cysteine 0.82 and 1.26 ㎎/g, aspantic acid 16.94 and 15.28 ㎎/g, serine 9.84 and 10.34 ㎎/g and threonine 3.62 and 3.90 ㎎/g, respectively.
Claviceps paspali 의 액내배양에서의 라이써직산 알카로이드 생성에 대한 비산의 촉진작용
김병각,William J . Kelleher Arthur E . Schwarting ( Byong Kak Kim ) 생화학분자생물학회 1972 BMB Reports Vol.5 No.1
Analysis of the culture filtrates of lysergic acid alkaloid-producing fermentations at intervals during growth of the cultures showed that phosphate is most rapidly depleted from the medium in fermentations that produce the highest levels of alkaloid. In view of the known interference with phosphate metabolism by arsenate, sodium arsenate was added to the culture medium with the intent of creating, in effect, a phosphate deficiency. The addition of arsenate at levels between one-fiftieth and one-twentieth the molar concentration of phosphate resulted in increases in alkaloid production up to 100 per cent. Experiments with ten-times the usual concentration of phosphate showed that the ratio of arsenate to phosphate rather than the absolute concentration of arsenate was most significant in obtaining this effect. Increasing the concentration of phosphate alone (up to twenty times the usual concentration) resulted in substantial increases in alkaloid production. The effect of arsenate on both the rate and the extent of phosphate uptake was determined. Among several inhibitors of electron transport and/or oxidative phosphorylation, only the uncoupler of oxidative phosphorylation (dinitrophenol) was effective in increasing alkaloid production.
김병각,최응칠 생화학분자생물학회 1978 BMB Reports Vol.6 No.3
In order to isolate constituents of Lactayius piperatus (Fr.) S. F. Gray which previously gave a positive reaction to alkaloid detecting reagents, the fresh material of the mushroom was homogenized with ethanol in a blendor, preserved for three years, and subsequently extracted with ethanol. From the concentrated ethanol solution, a mixture of compounds was isolated. The mixture was separated into two portions, from which a white needle crystal (Compound A) was obtained. The physical and chemical characteristics of Compound A will be presented.
김병각,옥선 생화학분자생물학회 1978 BMB Reports Vol.6 No.3
Optimal conditions for the production of lysergic acid alkaloid by Claviceps paspali isolate No. 31 in stirred fermentors were investigated. Effects of surfactants, glycine, arsenate, dimethylsulfoxide, oxygen, and different impellers were examined.
한국산 고등 균류의 성분 연구 (제37보) : 뽕나무버섯의 항암 성분 Antitumor Components of Armillariella mellea
김병각,최응칠,심미자,정경수,이정옥,김혜령,이종길,김진숙 한국균학회 1983 韓國菌學會誌 Vol.11 No.4
To find antitumor components in Korean basidiomycetes, the carpophores of Armillariella mellea which were collected in Gyeong Gi Province were extracted with distilled water at 90∼100℃ for eight hours. The hot water extract was concentrated under reduced pressure, mixed with three-fold volumes of ethanol and allowed to stand at 4℃ overnight. The precipitate was centrifugated and lyophilized to yield a protein-polysaccharide fraction. It was examined for antitumor activity against sarcoma 180 implanted in ICR mice. The fraction showed 75.7%, 83.9% and 94.1% of tumor inhibition ratios at the doses of 10, 20 and 50 ㎎/㎏/day, respectively. The chemical analysis of the fraction showed that it contained a polysaccharide(41.3%) and a protein(35.0%). The hydrolyzates of the polysaccharide moiety contained fucose(4.5%), xylose (1.1%), galactose(17.4%), glucose(55.4%), mannose(19.4%), and one unknown monosaccharide. The protein moiety contained seventeen amino acids. The protein-polysaccharide from A. mellea was administered, i.p., to mice and caused an influx of polymorphonuclear leukocytes (PMN) at 5∼24 hours which was followed by an accumulation of macrophages and disappearance of the PMN at 48∼72 hours.