 ผลงานตีพิมพ์ในวารสารวิชาการA deletion of the gene encoding amino aldehyde dehydrogenase enhances the "pandan-like" aroma of winter melon (Benincasa hispida) and is a functional marker for the development of the aromaผู้แต่ง: Saowalak Ruangnam, Samart Wanchana, Nongnat Phoka, Chatree Saeansuk, Sugunya Mahatheeranont, Simon Jan de Hoop, Theerayut Toojinda,  Dr.Apichart Vanavichit, Professor , Mr.Siwaret Arikit, Associate Professor , วารสาร:  
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 หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Volatile Aroma Compounds of Khao Dawk Mali 105 Rice) ผู้เขียน:Sugunya Mahatheeranont, นางสาวสมนึก พรมแดง, Adisak Chiampiriyakul สื่อสิ่งพิมพ์:pdf AbstractThe volatile compounds of uncooked Khao Dawk Mali 105 brown rice were extracted using simple steam distillation method under reduced pressure. After solvent extraction in dichloromethane, the extract was concentrated and subjected to analysis twice using capillary GC-MS. The first analysis was performed immediately after distillation and extraction, while the second analysis was done after the extract was left at room temperature until its aromatic volatile compounds dissipated. Comparison of these volatile compounds identified suggested that the compounds assumed to play an important role in aroma of khao Dawk Mali 105 rice were 1-acetyl-1-pyrroline as the major component, butly acetate, diethyl carbonate, butyl cyclopropane, 1,4-dimethylbenzene, isocyanato-methylbenzene, hexanal, nonanal, 7-octen-4-ol, 2-(2-propoxyethoxy) ethanol, and 2,6-bis (1,1-dimethyl-ethyl)-4-methylphenol. Order quality evaluation was performed among these compounds identified and came to a conclusion in that the odor of synthetic 2-acrtyl-1-pyrroline was shown to be most match with the cooked pandan leaves aroma. However, this specific compound when added into cooked bland rice gave the odor which matched most closely with the aroma of Khao Dawk Mali 105. |
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 Researcherดร. จริงแท้ ศิริพานิช, ศาสตราจารย์ที่ทำงาน:ศูนย์วิจัยและพัฒนาพืชผักเขตร้อน (ภาควิชาพืชสวน) คณะเกษตร กำแพงแสน สาขาที่สนใจ:สรีรวิทยาและเทคโนโลยีหลังการเก็บเกี่ยวและผลไม้ , สรีรวิทยาพืชสวน Resume |
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หัวเรื่อง:การศึกษาสารอินทรีย์ระดับทุติยภูมิในข้าวไทยพันธุ์ต้านทานและไม่ต้านทานต่อแมลง ผู้เขียน:Sugunya Mahatheeranont, Adisak Chiampiriyakul, นางสาวสมนึก พรมแดง สื่อสิ่งพิมพ์:pdf AbstractPlant volatiles were extracted form leaved and leaf sheath of Supan buri 90, a variety of rice resistant to brown planthopper, Supan buri 60 and Tai chung Native 1, varieties of rice susceptible to brown planthopper, using steam distillation and solvent extraction method. The crude extracts obtained were subjected to analysis by capillary gas chromatography/mass spectrometry (GC/MS) operated in electron impact mode. Various types of volatile compound were identified and some volatiles were assumed to be involved in resistance of rice to brown planthopper due to their absence in susceptible rice varieties or their present in resistant rice variety. Among them was 3,7-dimethyl-2, 6-octadienal, a terpene aldehyde reported as main constituent of lemon-grass oil. |
หัวเรื่อง:ไม่มีชื่อไทย (ชื่ออังกฤษ : Isolation of Acaricidal Substances against Tropical Cattle Ticks from Sugar Apple Seeds) ผู้เขียน:ดร.ณรงค์ จึงสมานญาติ, รองศาสตราจารย์, Sugunya Mahatheeranont, Chainarong Rattankkreetakul, ดร.สุรัตน์วดี จิวะจินดา , นายวีระพล จันทร์สวรรค์, รองศาสตราจารย์ สื่อสิ่งพิมพ์:pdf AbstractIsolation of acaricidal active substances from sugar apple seeds (Annona squamosa L.) against tropical cattle ticks (Boophilus microplus) was performed. Two active compounds were found in ethyl acetate part of ethanol extracted crude. The compound I (R 0.59) was isolated from twice chromatographed fractions of 60-100% ethyl acetate/toluene (F4-6) and 10, 20% ethanol/ethyl acetate (F7-8), and of 10% ethanol/ethyl acetate (FF 7) by preparative TLC (developed with hexane:acetone; 3:2) and preparative HPLC (reverse phase C subscript 18 column, 85% MeOH in water, 210 nm UV detecter). The compound II (R 0.31) was isolated from triple chromatographed of 80% ethyl acetate/toluene (F5), 45-60% acetone/hexane (F A), and of 40-50% ethyl acetate/toluene (FF B) respectively by preparative TLC (developed with hexane:acetone, 3:2). The compound I and II displayed a highest mass in EI mass spectrum at 623 and 432 mass unit, respectively. The fragmentation pattern of compound I are similar to those known substance; squamocin and acetogenin. The protron NMR spectrum of both compounds displayed the similarly pattern of triterpenoid. |
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