• KSBB Journal
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• 제32권1호
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• pp.1-8
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• 2017

Bamboo is a plant belonging to the Gramineae family, and can be used as valuable bioresources for many industrial applications. Bamboo has some useful properties and having a lot of beneficial uses such as a bamboo ware, agriculture material, building construction material, pulpwood, etc. Bamboo stem has a large amount of active ingredients that those of bamboo leaves. The stem of bamboo can be processed into various biomaterials including cellulose and lignin, and sometimes uses as foods, cosmetics and medicines using stem extracts with polyphenol compounds. For cosmetic applications of bamboo stems, especially, the constituents of bamboo stem are suitable for inner beauty (cosmetic food) products showing antioxidant and UV-protecting activities. This review summaries the recent literature data and discusses the versatile uses of bamboo stem and its extracts mainly for cosmetic application.

• 한국산림과학회지
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• 제2권1호
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• pp.10-16
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• 1962

The following are what this auther concluded in his recent research of bamboo cultivation. 1. The bamboo logging should be prohibited during the months of July and August, for during that season the growth of the terrestrial stem is most vigorous and active. 2. The growth of terrestrial stem of the phyllotachys pubescens is not likely to be affected the soil texture on which it grows and it is sappling sprout out well enough in any kind of soil, but it was found out that it grows in the best condition on the sand-clay soil and in next best condition on the clay-soil. 3. The bamboo blossoming takes always most of the nutritions needed for the growth of the terrestrial stem and causes to decay 90 percent of the next year buds which await in the terrestrial stem to sprout as the sappling. The remaining 10 percent of the buds is to be the "re-incarnated bamboos" 4. The terrestrial thin roots of blossoming bamboo are negative in their growth, too weak in absorbing the nutrition. The above stated facts show, to be brief, that growth of bamboo depends largely upon that of the terrestrial stem.

• 한국가구학회지
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• 제20권5호
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• pp.480-489
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• 2009

This study was carried out to develop the core technology for the manufacturing the flat floor panel with the bamboo grown in Damyang region maintaining its indigenous merits. Using capital bamboo(Phyllostachys bambusoides) of Damyang with superior physical and working properties, Authors have standardized the core technologies for the integrated production of flat floor panel using this superior bamboo i.e, washing, splitting, flattening, blasting, and overlaying over plywood. It is expected to increase the income from bamboo forest and to enhance the image of the eco-city, Damyang with this technological development. Additional quality assuring test and economical analysis for the industralization as building material will be performed.

• 한국산림과학회지
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• 제111권4호
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• pp.622-629
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• 2022

본 연구는 우리나라 대나무 중 맹종죽에 대해 수간곡선식을 도출하고, 이를 이용하여 재적표를 개발하기 위하여 수행되었다. 맹종죽의 수간곡선식을 도출하기 위하여 Max & Burkhart, Kozak, Lee의 세 가지 수간곡선 모형을 이용하였다. 대나무는 목질 특성 상 내부가 비어 있기 때문에 수간 외직경과 내직경을 산출하고, 이를 연결하여 수간곡선화 하였다. 세가지 수간곡선 모형을 이용하여 수간 외직경 및 내직경을 추정한 결과, Kozak 모형이 적합도지수가 가장 높고, 오차 및 편의가 가장 적어 최적 수간곡선식으로 선정되었다. Kozak 식으로 맹종죽의 수간고별 직경을 추정하고 수간곡선을 도식화하였다. 수간곡선식에 대한 잔차도를 확인한 결과, 잔차가 모두 "0"을 중심으로 분포하여 식의 적합성이 입증할 수 있었다. 맹종죽의 재적 산출을 위해 내직경, 외직경에 대해 각각 연결한 수간곡선식을 회전시켜 회전입방체를 만들었으며, Smalian 구분구적법으로 재적을 계산하였다. 외직경으로 산출된 재적에서 내직경에 의해 산출된 재적을 공제하여 맹종죽의 재적을 도출하였다. 맹종죽의 재적은 일반용재인 일본잎갈나무 재적과 비교해 볼 때, 그 양이 20~30%에 불과한 것으로 나타났다. 그러나 맹종죽의 현재 ha당 본수와 매년 발생되는 죽순의 양을 고려한다면 개체목의 재적은 다른수종에 비해 상대적으로 적더라도, ha당 재적은 유사하거나, 오히려 더 많을 것으로 판단된다. 본 연구를 통해 국내 최초로 맹종죽의 수간곡선식 및 수간재적표가 개발되었으며, 공익 및 산업 수요 확대가 예상되는 대나무에 대한 매각 거래, 탄소흡수량 산정 등에 기초자료로 활용될 것으로 기대된다.

• 한국산림과학회지
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• 제113권1호
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• pp.66-72
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• 2024

Determining the nutrient stoichiometry in plant organs is critical for understanding nutrient uptake and cycling in forest ecosystems. This study evaluated nutrient concentrations and stoichiometry in various plant organs (stem, bark, branches, and foliage) of species found in four warm-temperate forests in southern Korea. Cryptomeria japonica D. Don (CJ), Quercus serrata Thunb. (QS), evergreen broadleaved tree species (EB), and bamboo spp. (BB) were destructively sampled to measure nutrient (C, N, and P) concentrations in the plant organs. The mean C concentration in the stem was significantly higher in CJ than in QS, BB, or EB, whereas the C concentration in the foliage was the lowest in BB. The mean foliar N and P concentrations were higher in BB than in EB or CJ. The mean stem C:N and C:P ratios were highest in CJ but were lowest in the foliage of BB. Overall, stems of all species showed a strong positive correlation between C concentration and dry weight, but a negative correlation between N and dry weight. The N and P concentrations of foliage and bark were strongly correlated, whereas those of the stem and branches were poorly correlated. Positive correlations were detected between the C:N and C:P ratios in bark and foliage. These results indicate the existence of intraspecific differences in nutrient requirements in warm-temperate forest species and add to the understanding of nutrient uptake and storage patterns in the organs of species growing in warm-temperate forests.

• 한국식생활문화학회지
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• 제31권3호
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• pp.213-219
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• 2016

Analysis of nutritional compositions of soybean sprouts cultivated with bamboo ash was carried out. Bamboo ash was utilized as sprouting water of soybeans and adjusted to 0.2, 0.6, 1.0, 1.4, 2.0, 6.0 and 10.0 g/L. Stem length and contents of isoflavone (daidzin, glycitin, genestin, daidzein, glycitein, and genestein) and vitamin C in soybean sprouts cultivated with 0.2 g/L were higher than those in soybean sprouts cultivated with only water. Potassium, magnesium, and calcium of all cultivation methods were detected in higher contents than others. In particular, potassium showed a high absorption rate in the soybean sprouts. The major amino acid was asparagine (616.05~849.15 mg/100 g, soybean eq.), and contents of lysine, leucine, and ornithine in soybean sprouts cultivated at 0.2 g/L were higher than those of methods by only water and addition of 6-benzylaminopurine. According to the results, soybean sprouts cultivated with 0.2 g/L of bamboo ash were effective for increasing nutritional compositions.

• Journal of Ginseng Research
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• 제22권2호
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• pp.147-153
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• 1998

An investigation was conducted to ascertain the basic information on characteristics of growth and morphological characters among the Korean (Panax. ginseng), the American (Panax. quinquefolium) and the Bamboo (Panax. japonicus) ginseng. In aerial parts growth of the ginseng species by age, The Korean ginseng and American ginseng's stem and leaf growth was alike in 2-4 years old, but growth cycle changed in 6 years old. The Korean ginseng was more vigorous than the American ginseng. The Korean ginseng roots were highly observed in ratio of red skin roots among three species, whereas The American ginseng roots were highly infected by root rot. It seems to be variable depending on growing stage and species. The Korean ginseng flowered about the middle of May, the American ginseng early June, and the Bamboo ginseng was late of May, The berry color of the ginseng species was observed, The Korean and American ginseng's mature berry color was red, The Bamboo ginseng's berry was three type of color and shape. In root characteristics of the seedling, Korean (p. ginseng), American (p. quinquefolium) ginseng's root shape was similarity in type, the bamboo ginseng showed different type, which root length and root weight was smaller than those of ginseng. In morphological characters of Leaf surface, pollen, and stoma, the Korean ginseng and American ginseng had crystal rosette on epidermis cell, but the Bamboo ginseng didn't has crystal rosette. Pollen shape observed tricolpate pollen and size was media type among the ginseng species, and also guard cell was anomocytic type, which were observed by scanning electronic microscope.

• Carbon letters
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• 제8권4호
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• pp.285-291
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• 2007

Carbon materials of various morphologies were synthesized by pyrolysis of Soap-nut seeds (Sapindus mukorossi), Jack Fruit seeds (Artocarpus heterophyllus), Date-seeds (Phoenix dactylifera), Neem seeds (Azadirachta indica), Tea leaves (Ehretia microphylla), Bamboo stem (Bambusa bambus) and Coconut fiber (Cocos nucifera), without using any catalyst. Carbon materials thus formed were characterized by SEM XRD and Raman. Carbon thus synthesized varied in size (in ${\mu}m$) but all showed highly porous morphology. These carbon materials were utilized as the anode in Lithium secondary battery. Amongst the various precursors, carbon fibers obtained from Soap-nut seeds (Sapindus mukorossi) and Bamboo stem (Bambusa bambus), even after $100^{th}$ cycles, showed the highest capacity of 130.29 mAh/g and 92.74 mAh/g respectively. Morphology, surface areas and porosity of carbon materials obtained from these precursors were analyzed to provide interpretation for their capacity to intercalate lithium. From the Raman studies it is concluded that graphitic nature of carbon materials assist in the intercalation of lithium. Size of cavity (or pore size of channels type structure) present in carbon materials were found to facilitate the intercalation of lithium.

• 한국산림과학회지
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• 제26권1호
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• pp.13-18
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• 1975

본시험(本試驗)은 죽간재적(竹稈材積)에 영향(影響)하는 형질(形質)을 정확(正確)하게 파악(把握)하기 위(爲)하여 계획(計劃)되었다. 그리고 왕대의 수개형질상호간(數個形質相互間)의 표현형상관(表現型相關), 유전상관(遺傳相關) 및 환경상관(環境相關)을 구명(究明)하고져 공분산분석(共分散分析) 되었으며 Dewey and Lu의 편회귀분석법(偏回歸分析法)으로 각형질(各形質)이 죽간재적(竹稈材積)에 미치는 효과(効果) 즉(即) 경로계수(經路係數)를 산출(算出)하였다. 조사형질(調査形質)은 흉고직경(胸高直徑), 죽간고(竹稈高), 지상고(枝上高), 지하경(地下莖), 절수(節數), 근원직경(根元直徑) 및 죽간재적(竹稈材積)이며 각(各) 형질(形質)의 평균치(平均値), 표준오차(標準誤差), 분산(分散) 및 표준편차(標準偏差)는 제(第)1표(表)와 같고 7개형간(個形間)의 표현형(表現型), 유전(遺傳) 및 환경상관(環境相關)을 분산분석(分散分析)한 결과(結果)는 제(第)2표(表)와 같이 계통간(系統間)에는 고도(高度)의 유의성(有意性)이 인정(認定)되었으나 몇몇 반복간(反覆間)에는 유의성(有意性)이 인정(認定)되지 않았다. 각(各) 형질(形質)의 유전력(遺傳力)을 추정(推定)한바 흉고직경(胸高直徑)과 근원직경(根元直徑)은 유전력(遺傳力)이 높고 기타형질(其他形質)의 유전력(遺傳力)은 제(第)4표(表)에서와 같이 보다 낮으며 환경상관(環境相關)은 표현형상관(表現型相關), 유전상관(遺傳相關)보다 전체적(全體的)으로 낮다. 그리고 죽간재적(竹稈材積)에 대(對)하여 근원직경(根元直徑)과 흉고직경(胸高直徑)은 높은 상관관계(相關關係)를 나타내었다. 형질별(形質別) 상관관계(相關關係), 경로계수(經路係數) 및 죽간재적(竹稈材積)에 미치는 직접(直接), 간접효과(間接効果)는 도표(圖表) 1과 제(第)5표(表)에서 볼 수 있으며 결과적(結果的)으로 본시험(本試驗)에서는 죽간재적수량(竹稈材積收量)은 근원직경(根元直徑)과 흉고직경(胸高直徑)에 의(依)하여 좌우(左右)될 수 있다는 것을 알았다.

• Carbon letters
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• 제9권3호
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• pp.188-194
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• 2008

Porous carbon materials synthesized from various plant derived precursors i.e. seeds of [Castor (Ricinus communis), Soap nut (Sapindus sp.), Cashew-nut (Semecarpus anacardium), Jack fruit (Artocarpus heterophyllus), Safflower (Carthamus tinctorius), Ambadi (Crotolaria juncea), Neem (Azadirachta indica), Bitter Almond (Prunus amygdalus), Sesamum (Sisamum indicum), Date-palm (Phoenix dactylifera),Canola (Brassica napus), Sunflower (Helianthus annulus)] and fibrous materials from [Corn stem- (Zea mays), Rice straw (Oryza sativa), Bamboo (Bombax bambusa) and Coconut fibers (Cocos nucifera)] were screened to make supercapacitor in 5M KOH solution. Carbon material obtained from Jack fruit seeds (92.0 F/g), Rice straw (83.0 F/g), Soap nut seeds (54.0 F/g), Castor seeds (44.34 F/g) and Bamboo (40.0 F/g) gave high capacitance value as compared to others. The magnitude of capacitance value was found to be inversely proportional to the scan rate of measurement. It is suggested that carbon material should possess large surface area and small pore size to get better value of capacitor. Moreover, the structure of carbon materials should be such that majority of pores are in the plane parallel to the plane of electrode and surface is fluffy like cotton ball.