• Title/Summary/Keyword: Methylcinnamate

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Insecticidal Activity and Repellent Effects of Methylcinnamate Separated from Alpinia galangal on Ricania sp. (갈색날개매미충(Ricania sp.)에 대한 양강근 유래 Methylcinnamate의 살충 및 기피 효과)

  • Park, Bueyong;Jeong, In-Hong;Park, Se-Keun;Jeon, Sung-Wook;Lee, Sang-Bum;Lee, Sang-Ku;Lee, Sung-Eun
    • Korean Journal of Organic Agriculture
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    • v.27 no.1
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    • pp.57-63
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    • 2019
  • Ricania sp. is a pest to many crops in Korea. This pest prefers fruit crops especially, blueberry and apple trees. We tested the possibility of Ricania sp. control using of methylcinnamate. In the laboratory bioassay, the mortality of methylcinnamate against Ricania sp. adult with 100 and 250 time diluted solution was 36.6% and 13.3% respectively. While repellent that the use of methylcinnamate resulted rate of 43.3% with 100 time diluted solution and 40.0% in 250 time diluted solution. Insecticidal and repellent effect in semifield bioassay were higher than those in laboratory bioassay. From this result, methylcinnamate might have synergic effect for Ricania sp. management. The result of this study showed a possibility of Ricania. sp. control using methylcinnamate.

Insecticidal activities and repellent effects of methylcinnamate and essential oils from Alpinia galangal against nymphs and adults of Metcalfa pruinosa (양강근(Alpinia galangal Swartz) 정유와 양강근 유래 주요물질인 Methylcinnamate의 미국선녀벌레(Metcalfa pruinosa Say)에 대한 살충 및 기피 효과)

  • Park, Bueyong;Lee, Sang-Ku;Jeong, In-Hong;Park, Se-Keun;Lee, Sang-Bum
    • Journal of Applied Biological Chemistry
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    • v.61 no.3
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    • pp.291-295
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    • 2018
  • Metcalfa pruinosa is a pest causing widespread problems to many crops in Korea. This pest infects fruit crops especially, persimmon and grapes. We tested the possibility of M. pruinosa management using essential oils of Alpina galangal and methylcinnamate which were extracted from A. galangal by steam distillation method. The use of essential oil showed a mortality rate of 10.0 and 23.3% for adults and nymphs, respectively. While the use of methylcinnamate resulted to a mortality rate of 40.0% in adults and 36.6% in nymphs. For its repellent effect, it showed an avoidance rate of 50.0 and 63.3% for adult and nymph respectively. Considering these two results, the extract of A. galangal are shown to have some synergic effect for pest control. The result of this study showed a possibility of M. pruinosa control using essential oil and methylcinnamate from A. galangal.

Studies on Essential Oils of Plants of Angelica Genus in Korea (IV) -Essential Oils of Angelicae koreanae Radix- (Angelica속 생약의 정유성분에 관한 연구(IV) -강활의 정유성분-)

  • Chi, Hyung-Joon;Kim, Hyun-Soo
    • Korean Journal of Pharmacognosy
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    • v.24 no.2
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    • pp.111-115
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    • 1993
  • Essential oil of the root of Angelica koreana Max. (Umbelliferae) was investigated. Essential oil was obtained from the dried roots by steam distillation and fractionated by column chromatography. Each isolate or fraction was identified by GC, GC-MS and spectral analysis. It was found to contain nine monoterpenes such as ${\alpha}-pinene$(7.0%), camphene, ${\beta}-pinene$, myrcene, ${\alpha}-phellandrene$, ${\Delta}-3-carene$, p-cymene, limonene(2.8%), terpinolene and also found to contain m-cresol(11.6%), citronellol, citral b, methylcinnamate, eudesmol and osthol. 2-Hydroxy-5-methylacetophenone and twelve compounds were tentatively identified.

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Enhancement of In Vitro Regeneration of Several Ocimum Species and Varieties

  • Park Chung-Heon;Phippen Winthrop B.;Simon James E.;NamKoong Seung-Bak;Seong Nak-Sul
    • Plant Resources
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    • v.8 no.3
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    • pp.275-280
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    • 2005
  • Tissue culture systems to optimize regeneration plant species of Ocimum spp were evaluated as a method to micropropagate individual plants and to better study their biology in vitro. Ocimum species were also evaluated for the production of natural plant products during and following the regeneration process. The primary goal of this project was to enhance the regeneration efficiency of basil. Several factors were examined using different Ocimum species and commercial varieties. The effect of cytokinin combination, activated charcoal, gelling agents, and different carbon sources were investigated. Anthocyanin callus spots were produced only in four varieties among six tested. 'Sweet Dani' showed the best results on anthocyanin accumulation, while 'African beauty', 'Tree basil' and 'Methylcinnamate' produced only a few spots. Shoot regeneration was only achieved from 'Sweet Dani' explants. As the activated charcoal concentration increased, callus formation rate decreased respectively compare to the controls for all varieties. There was a decrease in callus growth with increasing concentration of agar and phytagel.

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