http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
엄나무 (Kalopanax pictus Nakai) 줄기 추출물이 In vitro 반추위 발효와 메탄저감에 미치는 영향
김재성,황문석,김용채,윤영만,배귀석,김창현,Kim, Jae Seong,Hwang, Moon Seok,Kim, Yong Chae,Yoon, Young-Man,Bae, Gui Sek,Kim, Chang-Hyun 한국축산환경학회 2015 한국축산시설환경학회지 Vol.21 No.3
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.
Intermolecular Friedel-Crafts Alkylation of 5-Alkylresorcinols with Cyclic Allylic Alcohols
Kim, Young-Chae,Young, Hee-Tae,Kim, Young-Ok,Yook, Chan-Nam,Baek, Seung-Hwa 圓光大學校 1994 論文集 Vol.28 No.2
알루미나상에서 BF₃etherate는 시클로 알릴알콜과 5-알킬레졸시놀의 축합반응 촉매로 작용된다: 알킬화반응의 생성물은 알킬기의 성질에 의존하며, 수득률은 5-(1,1-dimethylheptyl) resorcinol이 높고, 또한 5-pentylresorcinol은 5-methylresorcinol보다 수득률이 높다. 이러한 알킬화 생성물의 수득률은 알킬기의 입체적인 효과에 기인된다. Table.1 Condensations of cyclic alcohols with resorcinols by catalysis with BF₃etherate on alumina. (표)?? Boron trifluoride-diethyl ether on alumina catalyses the condensation of 5-alkylresorcinols with several cyclic allylic alcohol: the formation of allkylation products depends on the nature of the alkyl group. The yield is the highest with 5-(1,1-dimethylheptyl)resorcinol, while that with 5-pentylresorcinol is higher than that for 5-methylresorcinol apparently because of steric effects.
A Simple and Convenient Method for the Synthesis of Cannabinoids
Baek, Seung-Hwa,Kim, Young-Ok,Yook, Chan-Nam,Kim, Young-Chae 圓光大學校 1994 論文集 Vol.28 No.2
BF₃etherate촉매하에 네롤과 오르시놀, 오리비톨의 반응으로 카나비노이드 이성질체를 합성할 수 있다. Isomerization of the adduct derived from reaction of olivetol and orcino with nerol(1) in the presence of BF₃etherate affords cannabinoid derivatives.