• Journal of Nutrition and Health
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• v.19 no.3
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• pp.155-160
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• 1986

This study was conducted to purify and characterize further a potent cholesterol lowering material found in Sogi. The ethanol extract of Sogi was purified with acetone and ethanol, and a white powder was obtained. This material yielded t재 spots on a Silicagel thin layer chromatogram. The major material identified by M.P. measurement, elementary analysis and spectrography was considered to be gyrophoric acid. Beside this, minor components (orsellic and leccanolic acids ) were detected.

• Journal of Nutrition and Health
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• v.20 no.1
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• pp.10-14
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• 1987

The effect of the addition of the white powder separated from Sogi (Gyrophora esculenta) by the extraction methods with ethanol and acetone was checked by the feeding experiment in rats fed with a high cholesterol diet. From this experiment, it was confirmed that this material, which was assumed to be the mixture of gyrophoric acid and the decomposition products, could lower both liver and plasma cholesterol levels.

• Journal of Korean Society of Forest Science
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• v.78 no.4
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• pp.333-344
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• 1989

The objectives of this study were to investigate the growth of Gyrophora esculanta and to establish a method of tissue culture of the plant. The results obtained were as follows : 1. The Gyrophora esculanta was found growing mostly on the rock slopes of 722 m to 1915 min elevation on mountains in Korea. 2. Trees growing in the vicinity of the G. esculanta were mainly Quercus spp., Pinus thunbergii, Acer spp. and Lespedeza spp, Especially Quercus spp. was found growing in all of the study site. 3. The average Length of the rock slopes with G. esculanta growing on was 14 m and their aspects were mostly south. 4. The G. esculanta were found growing on rocks of Crystalline Schist, Quartz, Liparite, Granite, ete. Particularly they were mostly found on granites. The gradient of the rock slopes was in the range of 22-90 degrees. 5. The mean number of individuals of G. esculanta per one rock slope ranged from 14 at Mt. Bukhan to 70 at Mt. Jrri. Their mean diameter ranged from 1.8cm at Mt. Munsu to 4.6cm at Mt, Sokri. 6. The average percentage of G. esculanta with fruit body was 17.6%. The highest value was found at Mt. Cheonhwang (24.0%). 7. When the 100 segments of rhizoid of Gyrophora esculanta cultured in Detmer's medium supplemented with kinetine 5mg/l and 2, 4-D 3mg/l, n callus of microspore origins were induced from about 20% of the segments. As the induced n callus was transplanted on the six different types of rocks, it was observed that the juvenile G. esculanta grew best on granite and the development rate of G. esculanta on the granite was about 55%.

• Journal of the Korean Applied Science and Technology
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• v.1 no.1
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• pp.33-36
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• 1984

As the previous report, by the administration of Sogi , Gyrophoraesculenta, to rats, cholesterol levels in liver and plasma were lowered. To know the Characteristics of the effective material contained in Iwatake, the aqueous and the alcoholic extracts were prepared, and these extracts were miked in the diet. After the feeding for 6weeks, cholesterols in liver and in plasma were determined. Either the aqueous or the alcoholic extracts administered groups showed a little low value as to these cholesterol levels compared with the value of group without the extract, but these values of alcoholic extract administered group were lower than those of aqueous extract group. From this result, it was assumed that this effective material would be the organic compound with hydrophilic groups.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.6
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• pp.820-825
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• 2010

The functional food components from various Basidiomycota were investigated to improve human intestinal microflora, especially associated with obesity. EtOH extract from Gyrophora esculenta fruit body and Coriolus versicolor judae mycelia showed antimicrobial activities on Eubacterium limosum, Clostridium perfrigens, Clostridium paraputrificum, Clostridium difficile and Clostridium ramosum, and on Bacteroides fragilis, respectively. Although the 80% EtOH extract from G. esculenta fruit body and hot-water extract from C. versicolor judae mycelia did not reduce weight of the rats in the high fat diet, these extracts showed stability at high temperatures and at wide pH ranges. In the rat group of feeding 80% EtOH extract from G. esculanta fruit body, Bifidobacterium spp. were increased and Clostridium spp. and Eubacterium spp. were decreased compared to the high fat feeding group. Also sensory evaluation was carried out for the development of prototype drink product. These results demonstrated the possibilities of C. versicolor judae and G. esculenta as a functional food components to control intestinal microbial flora.

• Korean journal of food and cookery science
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• v.7 no.3
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• pp.69-76
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• 1991

Recent epidemiological observations suggested beneficial effects of dietary fiber on man's health. The obsective of this study was to obtain the dietary fiber reference data of mushrooms. The dietary fiber contents of six different mushrooms (Cornellus edodes, Auricularia auriculajudae, Gyrophora esculanta, Agaricus bisporus, Pleurotus ostreatus, Collybia velutipes) were analyzed by Southgate method, modified neutral detergent fiber (NDF) method and Food Research Institute (FRI) method. Duplicate sample were used for each determination. The mean values of total dietary fiber by Southgate method, modified NDF method and FRI method were respectively $20.08\pm1.45g$/100g dry weight, $20.24\pm1.85g$/100g dry weight and $21.5\pm2.70g$/100g dry weight. The mean values of all mushroom samples by FRI method were significantly different from the mean values of the samples by modified NDF method and Southgate method. However, there was no difference in the mean values of the samples between modified NDF method and Southgate method. By Southgate method, total dietary fiber of mushrooms composed of 1.7-3.1% soluble fiber, 47.0-66.6% hemicellulose, 28.4-57.7% cellulose and 0.9-3.3% lignin. By modified NDF method, total dietary fiber of mushrooms composed of 61.8-79.1% hemicellulose, 5.4-32.9% cellulose and 4.5- l5.5% lignin. Therefore, dietary fiber contents of mushrooms were mainly hemicellulose. Our values for total dietary fiber for six mushrooms were 2~4 times higher than crude fiber in textbook.