• Archives of Pharmacal Research
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• 제21권1호
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• pp.24-29
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• 1998

To search for the anti-diabetic principle from the stem bark of Kalopanax pictus, seven kinds of chemical constituents including hederagenin glycosides and phenolic glycosides wre isolated. The anti-diabetic evaluation of these isoltes in the streptozotocin-induced diabetic rats exhibited that kalopanaxsaponin A has a potent anti-diabetic activity in contrast to a mild activity of hederagenin. In addition, significant hypocholesterolemic and hypolipidemic activities of kalopanaxsaponin A and hederagenin were observed. The structure-activity relationship of kalopanaxsaponin A was also investigated in the present work.

• 생약학회지
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• 제37권3호
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• pp.184-189
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• 2006

To find the monthly variation of kalopanaxsaponin contents in the leaves of Kalopanax pictus with thorns (KPT) and with no thorns (KPN), the leaves monthly collected from May to September were extracted with MeOH and then the kalopanaksaponin fractions were prepared. KPT collected on May showed the lowest saponin content of the KPTs whereas KPT on August exhibited the highest saponin content. From September, the saponin content in the loaves decreased. The highest saponin content was shown to be 7.3% in KPN collected on August. Evaluation of six kalopanaxsaponins A, I, J, B, H and K (KPA, KPI, KPJ, KPB, KPH, and KPK) were performed using TLC densitometer. In this measurement, considerably higher KPB and KPH, both hederagenin bisdesmosides, were found whereas very low contents In monodesrnosides KPI and KPJ were observed. In conclusion, it was shown that the leaves of KPN of August could be a biomaterial source for the kalopanaxsaponin fraction. It was also suggested that measurement of the weight of kalopanaxsaponin fraction and the content of KPB as the representative compound for kalopanaxsaponins will be used for the quantitative evaluation of the kalopanaxsaponins of K. pictus.

• 한국축산시설환경학회지
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• 제21권3호
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• pp.113-122
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• 2015

An experiment was conducted to examine the effects of Kalopanax pictus Nakai (Kalopanax) on in vitro rumen fermentation and methane (CH4) reduction. Kalopanax trunk was extracted with 70% ethanol and 70% methanol. Rumen fluid, alfalfa hay and buffer (control: C) supplemented with 0.3% Kalopanx juice (T1), 0.3% ethanol extract (T2) and 0.3% methanol extract (T3) in the total volume of culture medium were incubated at $38^{\circ}C$ for 24h and 48h. Rumen pH was lower in all Kalopanax treatments during all incubations than that in control (p<0.05). Total VFA and total gas production in T2 and T3 was significantly higher than that in C at 48h incubation (p<0.05). Ammonia-N was decreased in all treatments compared with C during the incubation periods (p<0.05). At 24h incubation, $CH_4$ contents were significantly reduced by both alcohol extracts. It is concluded that supplementing Kalopanax extracts can stimulate ruminal fermentation of rumen microorganisms and inhibit methanogenesis.

• The Korean Journal of Ecology
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• 제26권6호
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• pp.335-340
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• 2003

Patterns of mass loss and nutrient release from decomposing oak (Quercus mongolica) and mixed litters (Q. mongolica, Betula schmidtii, Acer pseudo-sieboldianum, Kalopanx pictus and Tilia amurensis) in a natural hardwood forest in Gyebangsan (Mt.) were examined using litterbags placed on the forest floor for 869 days. Mass loss rates from decomposing litter were consistently higher in mixed litter (59%) than in oak litter types (52%) during the study period. Nutrient concentrations such as nitrogen (N), phosphorus (P), potassium (K), and magnesium (Mg) from decomposing litter were also higher in mixed litter than in oak litter types. Nutrient concentrations (N, P, Ca, and Mg) increased compared with initial concentration of litter, while K concentrations dropped rapidly at the first 5 months and then stabilized. The results suggest that mas loss and nutrient release obtained from decomposing litter of single species in mixed hardwood forest ecosystem should be applied with caution because of the potential differences of mass loss and nutrient release between single litter and mixed litter types.

• 한국약용작물학회지
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• 제14권3호
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• pp.173-177
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• 2006

음나무는 잎을 산채로, 뿌리와 수피를 식의약용으로 다양하게 이용되고 있으며, 최근 농산촌의 신소득 작목으로 재배하기 시작하였다. 본 연구는 엽내 무기성분분석을 통하여 음나무 유묘의 생장에 미치는 영향을 조사하여 향후 재배 및 생산성 향상을 위한 기초자료를 제공하고자 수행하였다. 음나무 유묘의 엽내 무기영양원소는 다량 및 미량 무기성분에 따라 함량차이를 보였으며, N성분이 가장 많았으며, 다음으로 K, Ca, P, Mg, Mn, Fe, Zn 순으로 나타났다. N, P, K 성분은 유묘의 생장과 고도의 정의 상관관계를 나타내었으며, Mg와 Mn은 낮은 정의 상관을 보인 반면, Na과는 높은 부의 상관관계를 나타내었다. 한편 Ca, Fe, Cu, Zn 성분은 유묘의 생장과 상관관계가 인정되지 않았다. 분석된 무기성분 중에서 N, P, K, Mg, Mn, Na 성분은 음나무 유묘의 생장에 영향을 미치는 (P<0.01) 무기성분으로 나타났으며, 특히 N성분은 가장 영향을 미치는 성분으로 나타났다.