• Korean Journal of Plant Resources
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• v.18 no.2
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• pp.315-324
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• 2005

The study was carried out to offer the raw data on counterplan of restoration and conservation by systematical and objective analyzing the flora and herbaceous communities around Abeliophyllum distichum habitats. In the results of flora survey, as the site that the most taxa were showed was Yulji-ri, Geosan-gun III, there was surveyed as 114 ones; 48 families, 91 genera, 99 species and 15 varieties, and as Younjeong-ri, Jincheon-gun V was showed the fewest ones, there was appeared 54 ones; 28 families, 49 genera, 47 species and 7 varieties. The dominant species of herbaceous communities were verified Humulus japonicus${\cdot}$Artemisia princeps var. orientalis(Chujeom-ri, Goesan-gun I), Oplismenus undulatifolius(Songdeok-ri, Goesan-gun II and Maechon-ri, Yeongdong-eup IV), Carex siderosticta${\cdot}$Pueraria thunbergiana${\cdot}$Artemisia princeps var. orientalis(Yulji-ri, Geosan-gun III), Streptolirion cordifolium(Younjeong-ri, Jincheon-Eun V) and Sasa borealis(Junggye-ri, Buan-gun IV). In correlation analysis, Artemisia princeps var. orientalis${\cdot}$Carex siderosticta, Sasa borealis${\cdot}$Festuca ovina, Sasa borealis${\cdot}$Smilax china and Festuca ovina${\cdot}$Smilax china were showed the highest relativity. In similarity index analysis, as the site that was showed highest value was Yulji-ri, Geosan-gun III and Maechon-ri, Yeongdong-eup IV, there was turned up about some $27.27\%$. In the results of regression analysis between environmental factors and number of species, R-square of altitude and number of species was some $70.0\%$.

• Food Science and Preservation
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• v.15 no.1
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• pp.125-132
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• 2008

This study investigated the cremical components of 1he s1aks anI leaves of Sasa borealis Makino, and the antioxidative activities, nitrite scavenging levels, and antimicrobial activities of extracts of the stalks and leaves. The moisture contents of stalks and leaves were 59.87%(w/w) and 28.79%(w/w), the crude protein levels 2.09%(w/w) and 6.33%(w/w), the crude fat concentrations 1.21%(w/w) and 3.43%(w/w), and the ash levels 0.99%(w/w) and 3.76%(w/w), respectively. The major mineral components were K, Na, Mg and Mn; and the K contents of stalks and leaves were the highest amongst the minerals tested, at 350.27 mg% and 639.60 mg%, respectively. The principal organic acids of stalks and leaves were acetic acid, citric acid and succinic acid, and the organic acid content of leaves was higher than that of stalks. The antioxidative activity of stalk extracts was higher than that of leaves, and the antioxidative activities of ethanol extracts were higher than those of hot water extracts. The 0.5%(v/v) ethanol stalk extracts showed stronger antioxidative effects than did the 0.02%(w/v) butylated hydroxyanisole. All extracts showed nitrite scavenging activities, and hot water extracts from stalk showed the highest activities. Hot water extracts showed antimicrobial activities against all bacterial strains tested, and ethanol extracts from leaf showed strong antimicrobial activities against most bacteria, except Listeria monocytogenes and Salmonella typhymurium. The antimicrobial activities of most stalk and leaf extracts were higher than those obtained using 1.0%(w/v) sorbic acid.

• The Korean Journal of Ecology
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• v.14 no.3
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• pp.243-255
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• 1991

The vegetation of haenam peninsula(126 30e.l. and 34 30n.l ) was investigated from July, 1990 to 1991. the units of vegetatin were classified by the phytosociological method of broun- blanquet's. the forest vegetation was classified into 7 communities, sasa borealis-quercus acuta, cinnamomum japonicum, camellia japonica, rhododendron mucronulatum-pinus thunbergii, pinus densiflora community, torreya nucifera, chamaecyparis obtusa afforestatio, and the actual vegetation map was drawn in 1 : 50,00 scaie.

• The Korean Journal of Ecology
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• v.17 no.4
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• pp.443-452
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• 1994

A phytosociological study of the forest vegetation was carried out in Mt. Chongok and Mt. Tuta from June, 1992 to August, 1993. The forest vegetation was classified into 1 order, 2 alliances, 1 suballiance and 4 communities; Vaccinium hirtum v. koreanum-Quercus monogolica community, Carex humilis v. nana-Pinus densiflora community, Sasa borealis-Carapinus laxiflora community, Plectranthus inflexus-Quercus variabilis community. Actual vegetation map was drawn in 1:25,000 scale.

• Herbal Formula Science
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• v.16 no.2
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• pp.183-191
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• 2008

Acetaminophen (N-acety1-p-aminophenol, paracetamol) is widely used as an over-the-counter analgesic and antipyretic drug. Intake of a over dose of acetaminophen may result in severe hepatic necrosis. In this study, we investigated the liver damage in mice using single dose (300 mg/kg) of acetaminophen and the possible protective effects of administration (50-200 mg/kg body weight) of SB-Ex on acetaminophen-induced liver damage in mice. The alanine aminotransferase (ALT), and aspartate aminotransferase (AST) activities were determined in the plasma of mice. The effect of SB-Ex on lipid peroxidation product thiobarbituric reacting substances (TBARS) and some antioxidant enzymes superoxide dismutase (SOD), catalase, d-aminolevulinate dehydratase (${\sigma}$-ALA-D) activities, and gluthathione peroxidase (GPx), were also evaluated in the mouse liver homogenate. Acetaminophen caused liver damage as evident by statistically significant increased in plasma activities of AST and ALT. There were general statistically significant losses in the activities of SOD, catalase, ${\sigma}$-ALA-D, and GPx and an increase in TBARS in the liver of acetaminophen-treated group compared with the control group. However, SB-Ex was able to counteract these effects. These results suggest that SB-Ex can act as hepatoprotectives against acetaminophen toxicity and is a good candidate for further evaluation as an effective chemotherapeutic agent.

• Korean journal of food and cookery science
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• v.31 no.4
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• pp.405-412
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• 2015

To develop a color stable and fine bamboo leaf powder (BLP) as a functional green biomaterial, bamboo leaf (BL) purchased from Sasa borealis and cultivated in Damyang, Jeonnam was treated with different conditions and BLP was evaluated. The four treatments comprised of boiling in water, in zinc chloride, sodium bicarbonate, and vinegar solutions, BLP4 was treated with 2% $ZnCl_2$ for 1 h, BLP5 was treated with 1% $ZnCl_2$ for 2 h, and BLP6 was treated with 1% $ZnCl_2+10%$ NaCl for 1 h. The particle size distribution, ash content, water binding capacity, and color change after heating in acidic solution were compared to commercial fine green tea (GTP) and bamboo leaf powders (CBLP). The particle size (cumulative 90%) of BLP was finest in BLP4 followed by BLP6 < BLP5 < GTP < CBLP. The water binding capacity of GTP was the highest and that of BLP was negatively correlated with particle size. After heating in acidic solution, the color of commercial GTP and CBLP changed from bright green to olive green, but the treated BLPs remained bright green. Especially, the -a (greenness) values for the commercial powders decreased from 11.2-13.6 to 3.1-3.8, while those of the treated BLPs did not change.

• Korean Journal of Environment and Ecology
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• v.3 no.1
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• pp.1-15
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• 1989

To investigate the actual vegetation and the degree of green naturality(DGN) in Gaya Mountain National Park, forest communities were classified by phytosocialogical analysis according to physiognomy and Braun-Blanquet methods. Major forest communities were as follows: 1. Pinus densiflora community 1) P. densiflora-Rhododendron mucronulatum subcommunity 2) P. densiflora-Lespedeza maximowiczii subcommunity 3) P. densiflora-Sasa borealis subcommunity 4) P. densiflora-Carex siderosticta subcommunity 2. Quercus mongolica community group. 1) Q. mongolica-Rhododendron schlippenbachii community a) Typical subcommunity b) Vaccinium koreanum subcommunity 2) Q. mongolica-Sasa borealis community 3) Q. mongolica-Lespedeza maximowiczii community 3. Quercus serrata community 4. Carpinus laxiflora-Quercus serrata community 5. Rhododendron tschonoskii community 6. Lespedeza crytobotrya-Miscanthus sinensis var. purpurascens community The map of DGN was drawn according to the actual vegetaton map. The ratio of DGN 7 and 8 was 93.9% in Gaya Mountain National Park.

• Journal of the Korean Society of Food Science and Nutrition
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• v.39 no.12
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• pp.1745-1752
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• 2010

This study was conducted to investigate the antimicrobial activity of 70% ethanol (EtOH) extract and the five fractions of the crude extract from Sasa borealis leaves against seven food poisoning bacteria, Staphylococcus aureus, Micrococus luteus, Listeria monocytogens, Bacillus subtilis, Escherichia coli, Salmonella Typhimurium, and Pseudomonas aeruginosa. The yield of 70% EtOH extract was 11.4% and those of n-hexane, chloroform, ethyl acetate, n-butanol, and aqueous fractions were 3.0%, 1.1%, 0.6%, 1.3%, and 5.1%, respectively. The 70% EtOH extract and the four fractions except aqueous fraction demonstrated antimicrobial activity against all the seven food poisoning bacteria at a concentration of 0.5%, although it was less compared to benzoic acid. Minimal inhibitory concentration (MIC) of the 70% EtOH extract against all the food poisoning bacteria except S. aureus was $50{\mu}L$/disc. Moreover, chloroform fraction was $35{\mu}L$/disc against 3 food poisoning bacteria and $50{\mu}L$/disc against the other 4 food poisoning bacteria; ethyl acetate fraction was $50{\mu}L$/disc against all the food poisoning bacteria. In addition, n-butanol fraction was $50{\mu}L$/disc against all the food poisoning bacteria except S. aureus. Aqueous fraction, which did not show antimicrobial activity at 5%, was $200{\mu}L$/disc against only S. aureus and L. monocytogen. The 0.25%, and 0.5% of ethyl acetate fraction inhibited the growth of all the food poisoning bacteria 8 to 12 hours and 24 hours, respectively. These results indicate that the Sasa borealis leaves may be useful as a natural antimicrobial substance.

• Journal of the Korean Society of Food Science and Nutrition
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• v.38 no.12
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• pp.1640-1648
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• 2009

This study was carried out to investigate the antioxidant activity of bamboo (Sasa borealis) leaf extract by measuring electron donating ability, superoxide dismutase (SOD)-like activity, reducing power, and lipid peroxidation inhibitory activity. Two crude extracts by water or 70% EtOH and five fractions of n-hexane, chloroform, ethyl acetate, n-butanol, and aqueous from the crude extract of 70% EtOH were prepared for this study. The crude extracts of water and 70% EtOH yielded 8.5% and 11.4%, respectively and the yields of n-hexane, chloroform, ethyl acetate, n-butanol, and aqueous fractions were 5.1% to 0.6%. Total polyphenol contents of the water and the 70% EtOH crude extracts were not significantly different; however, their total flavonoid contents were significantly greater in the 70% EtOH than in the water crude extract. Total polyphenol contents were the highest in chloroform fraction followed by ethyl acetate and n-butanol fractions and total flavonoid contents were the highest in ethyl acetate fraction followed by chloroform and n-hexane fractions. The two crude extracts as well as the five fractions showed election donating ability, SOD-like ability, reducing power, and lipid peroxidation inhibitory activity. Most of the antioxidant activities of each crude extract or fractions increased proportionally with the concentration. These results indicate that bamboo (Sasa borealis) leaf extracts show antioxidant activities due to its substantial content of polyphenol including flavonoid. Thus, it could be concluded that crude extracts by water or 70% EtOH and the fractions from the 70% EtOH extract, especially chloroform, ethyl acetate and n-butanol, would be useful as natural antioxidant substances.

• Mycobiology
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• v.35 no.4
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• pp.186-190
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• 2007

This study was conducted to investigate the effects of foliar endophytic fungi and arbuscular mycorrhizal fungi (AMF) on plant community structure in experimental microcosms containing an assemblage of five species of plants (Oenothera odorata, Plantago asiatica, Trifolium repens, Isodon japonicas and Aster yomena). Leaves of Sasa borealis, Potentilia fragarioides, and Viola mandshurica were collected in Chungbuk, Korea. Endophytic fungi were isolated from the surface sterilized leaves and identified to species level using molecular and morphological techniques. Four isolates of the endophytic fungi were inoculated to the leaves of host plants in the microcosms. Also, three species of AMF spores were extracted from pure cultures and the mixture of the three species inoculated to the roots of the plants. After four months of growth in a green house, effects of both symbiotic fungi on plant species diversity, community composition and productivity were examined. The plant species diversity showed significant differences with inoculation of the symbiotic fungi. Results indicate that AMF significantly affect plant productivity and plant community structure.