斑蚱蜢表皮腹腺的次生代谢物

O. Igwe, D. Udofia
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引用次数: 1

摘要

采用石油醚法从蚱蜢(Zonocerus variegatus L.)的腹部角质腺中提取化合物,采用气相色谱/质谱(GC/MS)技术结合傅里叶变换-红外光谱(FT-IR)对11个化合物进行了表征。分析化合物为2,7-二甲基辛烷(3.21%)、癸烷(5.33%)、十一烷(3.81%)、三烷酸甲酯(4.76%)、十六烷酸(9.37%)、11-十八烷酸甲酯(23.18%)、五烷酸、14-甲基甲酯(4.43%)、(Z)-13-十二烷酸(10.71%)、十二烷基五氟丙酸(9.52%)、2-十二烷基1,3-丙二醇(6.38%)、1,12-三烯二烯(19.30%)。萃取物的FT-IR分析显示在1270.17 (C - o和C - f)、1641.48 (C=C)、2937.68 (C - h)和3430.51 (O-H) cm−1处的峰表明存在醚、烯烃、烷烃、醇、羧酸和氟化合物。这些化合物由32.37%的酯、31.65%的烃类、20.08%的脂肪酸、9.52%的卤代酯和6.38%的醇组成。最高成分为11-十八烯酸甲酯,其次为1,12-三烯二烯。由于没有进行行为生物测定,因此认为这些化合物是信息素的半化学物质仍然是一种假设。
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Secondary Metabolites of the Cuticular Abdominal Glands of Variegated Grasshopper (Zonocerus variegatus L.)
Chemical compounds were extracted with petroleum ether from the cuticular abdominal glands of grasshopper (Zonocerus variegatus L.) and eleven compounds were characterised using Gas Chromatography/Mass Spectrometry (GC/MS) technique in combination with Fourier Transform-Infrared Spectroscopy (FT-IR). The compounds analysed were 2,7-dimethyloctane (3.21%), decane (5.33%), undecane (3.81%), tridecanoic acid methyl ester (4.76%), hexadecanoic acid (9.37%), 11-octadecenoic acid methyl ester (23.18%), pentadecanoic acid, 14-methyl-methyl ester (4.43%), (Z)-13-docosenoic acid (10.71%), dodecyl pentafluoropropionate (9.52%), 2-dodecyl-1,3-propanediol (6.38%), and 1,12-tridecadiene (19.30%). FT-IR analysis of the extract showed peaks at 1270.17 (C–O and C–F), 1641.48 (C=C), 2937.68 (C–H), and 3430.51 (O–H) cm−1 indicating the presence of ether, alkene, alkane, alcohol, carboxylic acid, and fluoric compounds. These compounds consisted of 32.37% ester, 31.65% hydrocarbons, 20.08% fatty acid, 9.52% halogenated ester, and 6.38% alcohol. The highest component was 11-octadecenoic acid methyl ester followed by 1,12-tridecadiene. Since behavioural bioassays were not carried out, the consideration of these compounds to be pheromone semiochemicals remains a hypothesis.
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