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首页> 外文期刊>Ukrainian Biochemical Journal >Determination of the major compounds in the extract of the subterranean termite Macrotermes gilvus Hagen digestive tract by GC-MS method
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Determination of the major compounds in the extract of the subterranean termite Macrotermes gilvus Hagen digestive tract by GC-MS method

机译：气相色谱-质谱法测定地下白蚁Macrotermes gilvus Hagen消化道中的主要化合物

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摘要

Degradation of woody components by termites is associated with symbionts inside their digestive tract. In this study, the major compounds were determined in the extract of the termite guts by GC-MS method. Macrotermes gilvus Hagen (worker caste) termites were collected and their dissected guts underwent methanol extraction. It was found that the gut of the termites has an alkaline environment (pH 8.83 ± 0.31) that supports the digestion of lignocellulose biomass and also helps to solubilize phenolic and recalcitrant compounds resulting from the depolymerization of woody components. The GC-MS analysis showed that termite guts contained hydrophobic organosilicon components including dodecamethylcyclohexasiloxane, tetradecamethylcyclohexasiloxane, hexadecamethylcyclooctasiloxane, and octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl. The guts also contained a phytosterol, which was identified as β-sitosterol. Further analysis of these water-insoluble compounds is needed to reveal their importance in termite digestion.
机译：白蚁对木质成分的降解与其消化道内的共生菌有关。在这项研究中，通过GC-MS方法测定了白蚁肠提取物中的主要化合物。收集大白蚁哈夫（工种）白蚁，将其解剖的肠道进行甲醇萃取。发现白蚁的肠具有碱性环境（pH 8.83±0.31），该环境支持木质纤维素生物质的消化，并且还有助于溶解由于木质成分解聚而产生的酚类和难降解化合物。 GC-MS分析表明，白蚁内胆中含有疏水性有机硅组分，包括十二甲基环六硅氧烷，十四甲基环六硅氧烷，十六甲基环八硅氧烷和八硅氧烷，分别为1,1,3,3,5,5,7,7,9,9,11,11,13,13 ，15,15-十六甲基。胆汁还含有植物甾醇，被鉴定为β-谷甾醇。需要对这些水不溶性化合物进行进一步分析，以揭示它们在白蚁消化中的重要性。

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