Essential oil profiles of seeds, peels, and leaves obtained from Limnocitrus littoralis (Miq.) swingle species, in the Southcentral coast of Vietnam

Abstract

The essential oils of seeds, peels, and leaves from Limnocitrus littoralis (Miq.) Swingle growing wildly on the southcentral coast of Vietnam were extracted by hydrodistillation method. The yields of the oils were recorded. The organoleptic and physicochemical properties of the oils were defined and evaluated according to international standards at 25 °C. A total of forty-three, fifty, and sixty-five components of these oils were analysed and identified, respectively. Major constituents in the seed oil were β-pinene (3.7%, Quang Ngai; 24.0%, Ninh Thuan), β-myrcene (11.1%, Quang Ngai; 59.2%, Ninh Thuan), o-cymene (57.7%, Quang Ngai), and limonene (18.5%, Quang Ngai; 94.5%, Phu Yen; 8.5%, Ninh Thuan). Major constituents in the peel oil included α-pinene (11.3%, Ninh Thuan), β-pinene (3.9%, Quang Ngai; 62.6%, Ninh Thuan), and limonene (54.0%, Quang Ngai; 94.0%, Phu Yen; 3.5%, Ninh Thuan). Major constituents in the leaf oils consisted of β-pinene (36.4%, Ninh Thuan), β-myrcene (38.0%, Quang Ngai; 28.9%, Ninh Thuan), and limonene (17.3%, Quang Ngai; 93.2%, Phu Yen). This research highlighted the aromatic value of bearing oil plants growing wildly on the Southcentral coast of Vietnam.