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Chemical Composition and Antioxidant Activity of Essential Oils and Methanol Extracts of Different Parts from Juniperus rigida Siebold & Zucc.
Author(s) -
Liu Qiaoxiao,
Li Dengwu,
Wang Wei,
Wang Dongmei,
Meng Xiaxia,
Wang Yongtao
Publication year - 2016
Publication title -
chemistry and biodiversity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.427
H-Index - 70
eISSN - 1612-1880
pISSN - 1612-1872
DOI - 10.1002/cbdv.201600048
Subject(s) - chemistry , dpph , essential oil , abts , myrcene , antioxidant , food science , caryophyllene , composition (language) , botany , limonene , organic chemistry , biology , linguistics , philosophy
The chemical composition and antioxidant activity of essential oils and Me OH extracts of stems, needles, and berries from Juniperus rigida were studied. The results indicated that the yield of essential oil from stems (2.5%) was higher than from needles (0.8%) and berries (1.0%). The gas chromatography/mass spectrometer ( GC / MS ) analysis indicated that 21, 17, and 14 compounds were identified from stems, needles, and berries essential oils, respectively. Caryophyllene, α ‐caryophyllene, and caryophyllene oxide were primary compounds in both stems and needles essential oils. However, α ‐pinene and β ‐myrcene mainly existed in berries essential oils and α ‐ionone only in needles essential oils. The high‐performance liquid chromatography ( HPLC ) analysis indicated that the phenolic profiles of three parts exhibited significant differences. Needles extracts had the highest content of chlorogenic acid, catechin, podophyllotoxin, and amentoflavone, and for berries extracts, the content of those compounds was the lowest. Meanwhile, three in vitro methods ( DPPH , ABTS , and FRAP ) were used to evaluate antioxidant activity. Stems essential oil and needles extracts exhibited the powerful antioxidant activity than other parts. This is the first comprehensive study on the different parts of J. rigida . The results suggested that stems and needles of J. rigida are useful supplements for healthy products as new resources.