肯尼亚红 blush 葡萄柚（Citrus paradisi）和文旦（Citrus grandis）果皮精油的挥发性成分。

Volatile constituents of redblush grapefruit (Citrus paradisi) and pummelo (Citrus grandis) peel essential oils from Kenya.

作者信息

Njoroge Simon Muhoho, Koaze Hiroshi, Karanja Paul Nyota, Sawamura Masayoshi

机构信息

Department of Food Science and Technology, Faculty of Agriculture, Jomo Kenyatta University of Agriculture and Technology, Post Office Box 62000-00200, Nairobi, Kenya.

出版信息

J Agric Food Chem. 2005 Dec 14;53(25):9790-4. doi: 10.1021/jf051373s.

DOI:10.1021/jf051373s

PMID:16332132

Abstract

The volatile constituents of cold-pressed peel essential oils of redblush grapefruit (Citrus paradisi Macfadyen forma Redblush) and pummelo (Citrus grandis Osbeck) from the same locality in Kenya were determined by GC and GC-MS. A total of 67 and 52 compounds, amounting to 97.9 and 98.8% of the two oils, respectively, were identified. Monoterpene hydrocarbons constituted 93.3 and 97.5% in the oils, respectively, with limonene (91.1 and 94.8%), alpha-terpinene (1.3 and 1.8%), and alpha-pinene (0.5%) as the main compounds. Sesquiterpene hydrocarbons constituted 0.4% in each oil. The notable compounds were beta-caryophyllene, alpha-cubebene, and (E,E)-alpha-farnesene. Oxygenated compounds constituted 4.2 and 2.0% of the redblush grapefruit and pummelo oils, respectively, out of which carbonyl compounds (2.0 and 1.3%), alcohols (1.4 and 0.3%), and esters (0.7 and 0.4%) were the major groups. Heptyl acetate, octanal, decanal, citronellal, and (Z)-carvone were the main constituents (0.1-0.5%). Perillene, (E)-carveol, and perillyl acetate occurred in the redblush grapefruit but were absent from the pummelo oil. Nootkatone, alpha- and beta-sinensal, methyl-N-methylanthranilate, and (Z,E)-farnesol were prominent in both oils.

摘要

采用气相色谱（GC）和气相色谱-质谱联用（GC-MS）技术，对来自肯尼亚同一地区的红玉血橙（Citrus paradisi Macfadyen forma Redblush）和文旦柚（Citrus grandis Osbeck）冷榨果皮精油中的挥发性成分进行了测定。共鉴定出67种和52种化合物，分别占两种精油的97.9%和98.8%。单萜烃类分别占两种精油的93.3%和97.5%，主要成分是柠檬烯（91.1%和94.8%）、α-松油烯（1.3%和1.8%）和α-蒎烯（0.5%）。倍半萜烃类在每种精油中均占0.4%。显著的化合物有β-石竹烯、α-荜澄茄烯和（E,E）-α-金合欢烯。氧化合物分别占红玉血橙和文旦柚精油的4.2%和2.0%，其中羰基化合物（2.0%和1.3%）、醇类（1.4%和0.3%）和酯类（0.7%和0.4%）是主要类别。乙酸庚酯、辛醛、癸醛、香茅醛和（Z）-香芹酮是主要成分（0.1 - 0.5%）。紫苏烯、（E）-香芹醇和紫苏醇乙酸酯存在于红玉血橙精油中，但文旦柚精油中未检出。诺卡酮、α-和β-辛醛、N-甲基邻氨基苯甲酸甲酯和（Z,E）-金合欢醇在两种精油中均很突出。