ผลงานตีพิมพ์ในวารสารวิชาการInsights into the reaction mechanism of n-hexane dehydroaromatization to benzene over gallium embedded HZSM-5: effect of H-2 incorporated on active sitesผู้แต่ง:Thivasasith, A, Mr.Thana Maihom, Assistant Professor, Pengpanich, S, Dr.Jumras Limtrakul, Professor, Wattanakit, C, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการDensity functional theory study on catalytic cracking of n-hexane on heteropoly acid: A comparison with acidic zeoliteผู้แต่ง:Choomwattana, S., Maihom, T., Dr.Bundet Boekfa, Assistant Professor, Dr.piboon pantu, Assistant Professor, Dr.Jumras Limtrakul, Professor, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการEffect of the Zeolite Nanocavity on the Reaction Mechanism of n-Hexane Cracking: A Density Functional Theory Studyผู้แต่ง:Maihom, T, Dr.piboon pantu, Assistant Professor, Tachakritikul, C, Probst, M, Dr.Jumras Limtrakul, Professor, วารสาร: |
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ผลงานตีพิมพ์ในวารสารวิชาการAnti-HIV-1 reverse transcriptase activities of hexane extracts from some Asian medicinal plantsผู้แต่ง:Silprasit, K, Seetaha, S, Pongsanarakul, P, Dr.Supa Hannongbua, Professor, Dr.Kiattawee Choowongkomon, Associate Professor, วารสาร: |
ผลงานตีพิมพ์ในวารสารวิชาการShape-selective hydrocarbon cracking of n-hexane on MCM-22 zeolite: Pore shape stability on zeolitesผู้แต่ง:Tiewcharoen, S, Dr.Bundet Boekfa, Assistant Professor, Treesukol, P, Maihom, T, Dr.Jumras Limtrakul, Professor, วารสาร: |
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หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Chemical Composition and Physical Properties of Oil from Plai (Zingiber cassumunar Roxb.) Obtained by Hydro Distillation and Hexane Extraction) ผู้เขียน:ดร.อุดมลักษณ์ สุขอัตตะ, นางสาวประภัสสร รักถาวร, Putthita Punjee, นางสาวโสภิดา ชิดชื่นเชย, ดร.วิเชียร กีรตินิจกาล, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractThis research studied essential oils of three native varieties of plai obtained by hexane extraction and hydro distillation and collected from Sa Kaco (S1), Chiang Mai (S2) and Prachuap Khiri Khan (S3) provinces in Thailand. The results showed that the yield of oil obtained from S1, S2 and S3 by hexane extraction was 0.983%, 0.900% and 0.857% (w/w), respectively, while by hydro distillation the yield was 1.137%, 1.262% and 1.373% (w/w), respectively. The chemical constituents of essential oils isolated by hexane extraction and hydro distillation were examined by gas chromatography-mass spectrometry (GC-MS). The results showed that essential oils in the plai rhizomes isolated by hexane extraction and by hydro distillation were rather similar in their major composition, but different in minor components. The plai oil obtained by hexane extraction contained mainly: sabinene (24.05-39.11%), ?-terpinene (6.68-7.74%), terpinen-4-ol (33.11-49.36%) and (E)-1-(3,4-dimethoxyphenyl) butadiene (DMPBD) (5.31-8.28%), whereas that obtained by hydro-distillation contained: sabinene (36.71-53.50%), ?- terpinene (5.27-7.25%), terpinen-4-ol (21.85-29.96%) and DMPBD (0.95-16.16%). |
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