Abstract

The essential oil was isolated from the fruit peels of eight Rutaceae genotypes of South India by utilizing the cold pressing method and has been analyzed through GC/MS. Altogether, 28 chemical constituents were detected and grouped into seven categories based on the presence of functional groups. Among all the groups, monoterpene hydrocarbons constituted the most dominant group ranging from 86.96-100 %, followed by sesquiterpene hydrocarbons (0.32-12.27 %), other miscellaneous compounds (12.52 %), oxygenated monoterpenes (0.34-0.79 %), oxygenated sesquiterpenes (0.83 %) and aldehydes (0.46 %), respectively. Limonene was the most abundant compound found in all the samples (51.53-93.52 %), followed by γ-terpinene (19.77 % in CLMB, β-pinene (17.83 % in CLMBI; 17.02 % in CLMS; 14.58 % in CLMM; 13.11 % in CLMB), 5-Ethylidene-1-methylcycloheptene (12.52 % in CLT), sabinene (7.73% inAM) and α-pinene (5.86 % in CLMB). Principal component analysis of all the volatiles detected from the samples discriminated into two main chemotypes (limonene and γ- terpinene/β-pinene). Further, based on the rich content of limonene, γ-terpinene and β-pinene in the genotypes CS, CLMB and CLMBI, they could be the potential sources for the commercial production of essential oil in the pharmaceutical industries.

摘要

利用冷压法从印度南部八种芸苔科基因型的果皮中分离出香精油，并通过GC / MS进行了分析。总共检测到28种化学成分，并根据官能团的存在将其分为7类。在所有组中，单萜烃是最主要的组，范围为86.96-100％，其次是倍半萜烃（0.32-12.27％），其他杂类化合物（12.52％），含氧单萜（0.34-0.79％），含氧倍半萜（分别为0.83％）和醛（0.46％）。柠檬烯是所有样品中含量最高的化合物（51.53-93.52％），其次是γ-松油烯（CLMB中的19.77％，β-pine烯（CLMBI中的17.83％; CLMS中的17.02％; CLMM中的14.58％; 13.11％）在CLMB中），5-亚乙基-1-甲基环庚烯（12。CLT中为52％），sa烯（AM中为7.73％）和α-pine烯（CLMB中为5.86％）。从样品中检测到的所有挥发物的主成分分析可分为两种主要的化学型（柠檬烯和γ-萜品烯/β-pine烯）。此外，基于基因型CS，CLMB和CLMBI中柠檬烯，γ-松油烯和β-pine烯的丰富含量，它们可能是制药工业中精油商业化生产的潜在来源。