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- 저자 : 이위영 ( Wi-yeong Lee ) (검색결과 3 건)
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HPLC를 이용한 한국산 송이의 methyl trans-cinnamate 함량 분석
이위영 ( Lee Wi Yeong ),박영기 ( Park Yeong Gi ),안진권 ( An Jin Gwon ),가강현 ( Ga Gang Hyeon ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.5
The contents of methyl trans-cinnamate, a significant and major aromatic compound in Tricholoma matsutake (pine mushroom), were determined by HPLC (High Performance Liquid Chromatography.). Mushroom sample collected from five sites in Korea were extracted with methanol by ultrasonication. The contents of methyl trans-cinnamate in the pileus and stalk of pine mushroom ranged from 84.8 to 995.7 μg/g and from 4.5 to 45.2 μg/g, respectively. The average contents of methyl trans-cinnamate in the pileus and stalk of pine mushroom from the five sites were 559.1 μg/g and 35.7 μg/g, respectively. From the results of this study, we could conclude that the contents of methly trans-cinnamate varied by different parts (pileus and stalk) and collecting sites. The amounts of methyl trans-cinnamate from tresh T. matsutake were higher than those of dried T. matsutake, Pileus of pine mushroom appeared to contain more methyl trans-cinnamate than did stalk. Additionally, as pileus of pine mushroom developed, the aroma content increased as well.
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박소영 ( Park So Yeong ),안진권 ( An Jin Gwon ),이위영 ( Lee Wi Yeong ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.6
A high frequency plant regeneration system was established using root segments of Albizziu corenna via tissue culture. Cotyledon, hypocotyl, leaf and root explants were cultured on B5 basal medium supplemented either with TDZ(0, 0.04, 0.5, 2.3 and 4.5μM) alone or with TDZ in combination with NAA (2.7 and 5.4μM) or 2,4-D(2.3 and 4.5μM). Shoot primordia were formed when the explants were transferred to B5 medium with 0.04-4.5μM TDZ. Among the explant types tested, only root explants showed high frequency shoot regeneration. Other tissues tested did not respond well to the same culture conditions. Histological observation of the responding explants showed direct development of shoots from endodermal tissues of root segments. The shoots formed could be elongated and further grown by transferring to the medium with 1.44μM GA₃. The shoots rooted either on B5 basal medium or on B5 medium supplemented with 1.44μM GAS. Shoot regeneration potential varied among the explant types. Root explants appeared to possess the highest potentiality for in vitro shoot regeneration.
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서동진 ( Dong-jin Seo ),김현철 ( Hyun-chul Kim ),이현석 ( Hyun Seok Lee ),이솔지 ( Solji Lee ),이위영 ( Wi-yeong Lee ),한심희 ( Sim-hee Han ),강준원 ( Jun Won Kang ) 한국농림기상학회 2016 한국농림기상학회지 Vol.18 No.4
Carbon dioxide (CO<sub>2</sub>) accounts for about 72% of the total greenhouse gas emissions. It is also widely known as a major cause of global warming. According to the IPCC`s fifth evaluation report, the growth rate of atmospheric CO<sub>2</sub> has increased by 35% for the last 100 years and global warming is occurring much more rapidly than expected since 1990s. As a result of climate change, global warming is increasing the frequency and severity of extreme weather events around the world, which has changed forest vegetation zone and vegetation phenology. The Kyoto Protocol recognizes the importance of forests and refers to the conservation and enhancement of forests as sinks and reservoirs of greenhouse gases. In this regard, studies of tree responses to climate change are indispensable for predicting changes in the forest ecosystems in the future. Therefore, studies using long-term climate change research facilities, associated with long-term ecological research (LTER) in the fields, will make a considerable contribution to predict and approach the changes in the future.
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