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Chemical Characterization of n-hexane extract Obtained from Lignocellulose Residual Contained in Agroindustrial Wastes

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Journal of Agricultural Chemistry and Environment 2018年第2期7卷 94-104页

作者： Jorge Ernesto Solá-Pérez Hugo Saldarriaga-norena Mario Murillo-Tovar Gustavo Ronderos-Lara Verónica Gisela López-Martínez Centro de Investigaciones Químicas ICCBAUniversidad Autónoma del Estado de MorelosCuernavacaMéxico

The chemical composition of n-hexane extractives from lignocellulose residual contained in different agroindustrial wastes was studied. The n-hexane extract, which accounted for 1.6% of total lignocellulose residual weight, was analysed by 1H-nMR and gas chromatography/mass spectrometry. The most predominant compounds identified were aliphatic hydrocarbons (lineal alkanes, branched alkanes, alkenes). Additionally, terpenes, ketones, fatty alcohols, fatty acids and steroids were also found together in minor amounts. The lipophilic compounds in n-hexane extracts in three lignocellulosic wastes, which is highly valuable information for a more complete industrial utilization of these lignocellulosic materials.

关键词： Wheat Straw Maguey Bagasse Sugarcane Bagasse n-hexane extract

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Study on the Inhibitory Mechanism of Sophora japonica n-hexane extract on Microcystis aeruginosa

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Agricultural Science & Technology 2011年第10期12卷 1543-1546页

作者：周晓见夏洁靳翠丽缪莉董昆明封克扬州大学环境科学与工程学院江苏扬州225127 扬州大学海洋科学与技术研究所江苏扬州225127

[Objective] The research aimed to analyze the inhibitory mechanism of Sophora japonica n-hexane extract which significantly inhibited Microcystis aeruginosa in the prior research.[Method] *** n-hexane extract was used to treat *** inspecting chlorophyll a content,protein content,cell membrane permeability and superoxide dismutase（SOD） activity,the inhibitory mechanism of *** n-hexane extract on *** was analyzed initially.[Result] *** n-hexane extract destroyed the cell membrane system of ***,and increased the cell membrane *** contents of chlorophyll a and protein respectively declined to 10% and 50% of that in the control group after cultivated for 7 d,which indicated the photosynthetic reaction system of *** was *** addition,under the effect of *** n-hexane extract,SOD activity of *** increased in the early period and decreased in the latter period.[Conclusion] The possible inhibitory mechanism of *** n-hexane extract on *** was destroying the cell membrane to increase the membrane permeability;destroying the photosynthetic reaction system to decrease the contents of photosynthetic pigment and protein;making SOD activity showing the phased variation.

关键词： S.japonica M.aeruginosa n-hexane extract Inhibitory mechanism

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GC-MS Analysis of Essential oil and n-hexane extract from Moso Bamboo

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Agricultural Science & Technology 2012年第5期13卷 993-996页

作者：刘志明任海青东北林业大学材料科学与工程学院生物质材料科学与技术教育部重点实验室黑龙江哈尔滨150040 中国林业科学研究院木材工业研究所北京100091

[Objective] This study aimed to analyze the chemical composition and yield of essential oil and n-hexane extract from moso bamboo to find active compounds with potential value. [Method] Essential oil and n-hexane extract were respectively extracted from moso bamboo of four different ages by using hydrodistillation and ultrasonic-assisted extraction with n-hexane, and analyzed with gas chromatography/mass spectrometry （GC/MS）. [Result] The results show that cedrol （46.39%） is the first principal volatile component in essential oil of the middle stem of 7-year old moso bamboo; dibutyl phthalate （59.46%） is the first principal volatile component in n-hexane extract of the middle stem of 3-year old moso bamboo; yield of n-hexane extract is higher than that of essential oil from moso bamboo. [Conclusion] Cedrol is an active compound with potential value.

关键词： Moso bamboo Hydrodistillation Ultrasonic assistance n-hexane extract Gas chromatography/mass spectrometry (GC/MS)

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