NDLI: Peel oils from three <i>Citrus</i> species: volatile constituents, antioxidant activities and related contributions of individual components.

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Peel oils from three Citrus species: volatile constituents, antioxidant activities and related contributions of individual components.

Content Provider	Europe PMC
Author	Lu, Qi Huang, Nana Peng, Ying Zhu, Chunhua Pan, Siyi
Abstract	In the present study, peel oils were extracted through hydrodistillation and cold pressing from three Citrus species (Valencia orange, Ponkan and Eureka lemon) to investigate their volatile constituents and antioxidant activities. A total of 47 volatile components were identified by GC–MS, and then grouped by principal component analysis. The extraction methods were found to have an obvious effect on the proportion of terpenes and oxygenated compounds in the six Citrus oils, especially for Eureka lemon oils. The major fractions in the Citrus oils were found to be monoterpenes (78.65–96.57%), with limonene occupying a dominant percentage (51.22–86.65%). Furthermore, γ-terpinene and terpinolene displayed strong DPPH (1,1-diphenyl-2-picrylhydrazyl) scavenging abilities and efficient inhibition of lipid peroxidation, while oxygenated compounds of α-terpineol and terpinen-4-ol showed poor DPPH radical-scavenging abilities. Therefore, hydrodistillated Eureka lemon oil with high levels of α-terpineol (9.11%) and terpinen-4-ol (4.69%) presented low radical scavenging capability. Citral displayed a high pro-oxidant ability against thiobarbituric acid reactive species formation, which might lead to the decreased ability of the Eureka lemon oils in inhibition of lipid peroxidation, since citral was significantly high in Eureka lemon oils. This study facilitated the understanding of volatile constituents and antioxidant activities in different Citrus peel oils.
Related Links	https://europepmc.org/backend/ptpmcrender.fcgi?accid=PMC6801276&blobtype=pdf
ISSN	00221155
Volume Number	56
DOI	10.1007/s13197-019-03937-w
PubMed Central reference number	PMC6801276
Issue Number	10
PubMed reference number	31686681
Journal	Journal of Food Science and Technology [J Food Sci Technol]
e-ISSN	09758402
Language	English
Publisher	Springer India
Publisher Date	2019-07-22
Publisher Place	New Delhi
Access Restriction	Open
Rights License	© Association of Food Scientists & Technologists (India) 2019
Subject Keyword	Citrus peel oil Hydrodistillation Cold pressing Individual component Antioxidant activities
Content Type	Text
Resource Type	Article
Subject	Food Science

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