• Food Science and Biotechnology
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• 제17권1호
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• pp.72-79
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• 2008

In this study, changes in the physicochemical properties and functional components of uncooked foods, including carrots, cabbage, shiitake (Lentinus edodes) and white button (Agaricus bisporus) mushrooms, sea mustard, and laver treated with electrolyzed water were investigated. No changes were observed in the primary compositions of any of the materials that were hot air- or freeze-dried after being treated with electrolyzed water. The lightness (L), redness (a), and yellowness (b) values of the carrots, shiitake, and laver were not affected by drying, while changes did occur in the cabbage (L-, a-, and b-values), mushrooms (a-value), and sea mustard (b-value) specimens that were hot air- or freeze-dried following the treatments with electrolyzed water. The dietary fiber contents of all the materials increased when they were hot air-dried. Vitamin C content decreased when the samples were treated with alkalic electrolyzed water. No changes occurred in the lectin, $\beta$-carotene, or total phenolic compound contents after the electrolyzed water treatments, suggesting that electrolyzed water could be used effectively as a pasteurization step for uncooked carrots, cabbage, shiitake and white button mushrooms, sea mustard, and laver.

• Journal of Microbiology and Biotechnology
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• 제11권1호
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• pp.167-171
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• 2001

The Hypoglycemic effect of exo-polymers (EPs) produced from submerged mycelial cultures of five types of mushrooms on streptozotocin (STZ)-induced diabetic rats were investigated in this study. The five experimental groups were fed with EPs (50 mg/kg body weight) for 7 days. Significant reduction in plasma glucose, total cholesterol (TC), and triglyceride (TG) levels were observed in rats fed with Lentinus edodes and Cordyceps militaris EPs. Plasma glucose and TC were also reduced by administration of Phellinus linteus EPs, but the TG level was not changed significantly. The EPs of three mushroom species also demonstrated a marked reduction in the level of plasma glutamate-pyruvate transminase (GPT). The result proves the hypoglycemic activity of EPs of three fungal group in STZ-induced diabetic rats and indicates their potential in the control of diabetes mellitus.

• 대한본초학회지
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• 제25권3호
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• pp.53-60
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• 2010

Objectives : This study was conducted to evaluate the antioxidative and fibrinolytic activity of the water and ethanol extracts from medicinal plants. Methods : Five kinds of medicinal plants(Carthami Flos, Glycyrrhizae Radix, Schisandrae Fructus, Atractylodes Rhizoma, Shiitake mushiroom) were extracted with distilled water and 70% ethanol, and the extracts were tested for their antioxidative and fibrilytic activities. Results : The highest polyphenol contents of the water and ethanol extracts from medicinal plants were 812.52 mg and 685.44 mg per 100 g of Carthamus tinctorius and Schizandra chinensis, respectively. The electron donating abilities (EDA) of the water extracts from all medicinal plants except Lentinus edodes were about 90% at 1,000 ppm and ethanol extracts were higher than those of water extracts. The highest SOD-like activity and nitrite scavenging abilities (NSA) were both of water and ethanol extracts from Schizandra chinensis. Five kinds of medicinal plants had fibrinolytoc activity and the highest activities were water and ethanol extracts from Glycyrrhiza uralensis. Conclusion : These results suggest that the medicinal plants can be used as natural antioxidant to prevent oxidative damage in normal cells probably because of their antioxidative and fibrinolytic activities.

• 한국식물병리학회지
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• 제10권3호
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• pp.197-210
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• 1994

This experiment was carried out to study the cause of degeneration and rot of cultivated mushroom. Among 597 bacterial isolates derived from the rots of Button mushroom (Agaricus bisporus), Oyster mushroom (Pleurotus ostreatus) and Oak mushroom (Lentinus edodes) collected from markets of 5 cities (Seoul, Suwon, Taegu, Pohang and Pusan) in Korea (1991~1993), 111 bacterial isolates (18.5%) were proved as pathogenic bacteria. These pathogenic bacteria causing bacterial rots of cultivated mushrooms were identified as Pseudomonas tolasii, P. agarici, and Eriwinia sp., and the main causal bacteria were P. tolaasii. P. fluorescens and Klebsiella plenticola were confirmed as saprophytic non-pathogenic bacteria. One hundred fifty nine isolates (Group No. 39) of the 486 saprophytic bacterial isolates were classified as P. fluorescens, and this species was most often found rot area of cultivated mushrooms. P. tolaasii, the causal organism of bacterial blotch, was classified into two groups; One group can be differentiated from the other by the formation of white precipitation band by white line reacting organisms of Pseudomonas Agar F media. P. tolaasii attacked the cultivated mushrooms relatively well at lower incubation temperature such as 5$^{\circ}C$, but P. agarici rarely attack at below 1$0^{\circ}C$. The temperature for the infection commercial cultivated mushrooms by P. agarici was higher than that of P. tolaasii. Optimum temperature for the infection of mushrooms by P. tolaasii and P. agarici were 2$0^{\circ}C$ and $25^{\circ}C$, respectively.

• 한국미생물·생명공학회지
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• 제44권3호
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• pp.246-253
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• 2016

The antibacterial activities of thirty mushroom species belonging to Basidiomycetes and Ascomycetes, cultivated on two liquid media, were evaluated against gram-positive (Bacillus subtilis and Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria by the disk diffusion method. All of the mushrooms, except Auriporia aurea, Fomes fomentarius, and Lyophyllum shimeji, showed different antibacterial activity levels—from 9.5 mm in diameter of the inhibition zone to full inhibition of growth of the test bacteria. The antibacterial activities of Crinipellis schevczenkovi, Hohenbuehelia myxotricha, Oxyporus obducens, and Spongipellis litschaueri were observed for the first time. The antibacterial potential of culture liquids of the investigated species was higher than that of their mycelia activity. Dependence of the intensity of antibacterial activity on the culture medium was shown. The antibacterial efficiency of the most active species (Lentinus edodes, Piptoporus betulinus, and Phellinus igniarius) was verified and compared with those of some commercial antibiotics and natural essential oils of Salvia and Eucalyptus. The culture liquid of Piptoporus betulinus, obtained after cultivation on glucose-peptone-yeast culture medium, is a potential substance for further creation of antibacterial products.

• 농촌지도와개발
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• 제6권2호
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• pp.141-147
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• 1999

느타리버섯은 톱밥:미강(80;20, %, v/v)에 황토흙, 밭흙, 논흙을 각각 40% 혼합시 89, 88, 68mm/10일 순, 표고버섯은 톱밥:미강(80;20, %, v/v)에 밭흙, 황토흙, 논흙을 각각 $40{\sim}50%$ 혼합시 74, 71, 68mm/10일 순, 영지버섯은 톱밥:미강(80;20, %, v/v)에 밭흙, 황토흙, 논흙을 각각 $40{\sim}50%$ 혼합시 98, 94, 89mm/10일 순으로 균사생장과 균사밀도가 양호하였다.

• 한국식품영양과학회지
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• 제31권6호
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• pp.986-993
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• 2002

항암성과 향미가 개선된 기능성 재래식 버섯균사체메주는 버섯균을 액체배양하여 재래식메주의 각 면에 5개씩 만든 구멍(1X3 cm)에 버섯균배양액을 메주 무게의 10%를 접종한후 $25^{\circ}C$에서 4주간 배양하여 제조하였다. 제조한 버섯균사체 메주 중 상황, 영지, 또는 신령버섯균사체메주가 항암성과 향미완화능이 우수하였다.

• Nutrition Research and Practice
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• 제1권3호
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• pp.180-183
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• 2007

Cytoprotective ability of polysaccharides isolated from different edible mushrooms was investigated on the 7-ketocholesterol-induced damaged cell line. Polysaccharide extracts from six different edible mushrooms-Flammulina velutipes, Peurotus ostreatus, Lentinus edodes, Agrocybe aegerita, Agaricus blazei, and Cordyceps militaris- were prepared by hot water extraction and alcohol precipitation. Cytoprotective ability was evaluated by measuring the viable cells of the normal embryonic liver cell line (BNL CL. 2) in the presence of 7-ketocholesterol. At $80\;{\mu}g/mL$ of 7-ketocholesterol, cytotoxicity was very high with a loss of 98% of viable cells after 20 h of incubation. With the addition of $200\;{\mu}g/mL$ of each polysaccharide isolate to the cell line containing $80\;{\mu}g/mL$ of 7-ketocholesterol, polysaccharide isolates from both Flammulina velutipes and Peurotus ostreatus could significantly inhibit the 7-ketochoelsterol-induced cytotoxicity in the cells. But other polysaccharide isolates were not effective in inhibiting cell damage caused by the oxLDL-induced cytotoxicity.

• 한국생명과학회:학술대회논문집
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• 한국생명과학회 2006년도 제47회 학술심포지움 및 추계국제학술대회
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• pp.118.1-118.1
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• 2006

• 대한본초학회지
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• 제23권1호
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• pp.17-22
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• 2008

Ojectives : Cheonggukjang(natto) is known to have anti-hyperlipidemic action. This study was designed to investigate whether Herbal-cheonggukjang (HC, Herbal-natto) is more effective than cheonggukjang only, Methods : We investigated anti-hyperlipidemic effects of HC in hyperlipidemic rats induced by high-fat diet in terms of observation on levels of total cholesterol, HDL-cholesterol and triglyceride in serum. HC was made by cheonggukjang added Codonopsis Lanceolata, Houttuynia cordata and Lentinus edodes in indicated concetrations. Results : In this experiment, hyperlipidemic rats showed elevated levels of total cholesterol and triglyceride, and also showed lowered level of HDL-cholesterol. Oral administration of HC decreased levels of total cholesterol and triglyceride, Cheonggukjang(natto) did not affect levels of total cholesterol, HDL cholesterol and triglyceride. Conclusions : In these results, oral administration of HC decreased total cholesterol and triglyceride effectively. These results demonstrate that HC is useful to modulate cholesterol and triglyceride in serum.