ABSTRACT Petitgrain essential oil of nine rootstocks and eight Citrus scion plants were analyzed by GC/MS and GC-FID. For the rootstocks, linalool and caryophyllene oxide were the most recurrent chemotypes. Hydrocarbon terpenes was the main chemical class; some oils presented oxygenated monoterpenes as the main class. The ‘Bitter’ orange petitgrain oil presented high amounts of esters, the ‘Taquari’ trifoliate oil has not presented hydrocarbon terpenes, and the ‘Swingle’ citrumelo oil only presented oxygenated compounds. Scion cultivar analysis showed petitgrain oils with sabinene, geranial, limonene and methyl-N-methyl anthranilate chemotypes. Most of the oils were composed mainly by hydrocarbon monoterpenes, with lesser content of terpene alcohols. Two scion cultivars presented the methyl-N-methyl anthranilate chemotype and smaller contents of hydrocarbon monoterpenes; the other was mainly composed by oxygenated monoterpenes. The oil composition of some of these rootstocks and scion varieties may be a potential feedstock for use in chemical, pharmaceuticals, fragrances and cosmetic industries.

中文翻译：

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不同柑橘砧木和接穗栽培品种苦橙叶（叶）精油的化学成分

摘要 采用 GC/MS 和 GC-FID 分析了九种砧木和八种柑橘接穗植物的苦橙叶精油。对于砧木，芳樟醇和石竹烯氧化物是最常见的化学型。烃类萜烯是主要的化学类别；一些油以含氧单萜为主要类别。“苦”橙苦橙油呈现出大量的酯，“Taquari”三叶油没有呈现烃萜，而“Swingle”柑橘油仅呈现含氧化合物。接穗栽培品种分析显示苦橙叶油具有柞树烯、天竺葵、柠檬烯和甲基-N-甲基邻氨基苯甲酸化学型。大多数油类主要由烃类单萜组成，萜醇含量较少。两个接穗品种表现出甲基-N-甲基邻氨基苯甲酸化学型和较少的烃类单萜含量；另一个主要由含氧单萜组成。其中一些砧木和接穗品种的油成分可能是用于化学、制药、香料和化妆品行业的潜在原料。