Terpene Compound Composition and Antioxidant Activity of Essential Oils from Needles of Pinus densiflora, Pinus koraiensis, Abies holophylla, and Juniperus chinensis by Harvest Period
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Department of Forest Therapy, Chungbuk National University, Cheongju 28644, Republic of Korea
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Department of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Republic of Korea
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Suwon R & D Center, Hanbit Flavor and Fragrance, Suwon 16681, Republic of Korea
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Department of Consumer Science, Chungbuk National University, Cheongju 28644, Republic of Korea
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Department of Forest Science, Chungbuk National University, Cheongju 28644, Republic of Korea
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Author to whom correspondence should be addressed.
Forests 2024, 15(3), 566; https://doi.org/10.3390/f15030566 (registering DOI)
Submission received: 26 February 2024
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Revised: 14 March 2024
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Accepted: 19 March 2024
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Published: 20 March 2024
Abstract
Plant resources are used as raw materials in various industries related to humans, such as edible, medicinal, taste, and flavor industries, depending on processes such as drying, processing, and collection period. In this study, we investigated the terpene compound composition and antioxidant activity of essential oils extracted from the needles of Pinus densiflora, Pinus koraiensis, Abies holophylla, and Juniperus chinensis collected in the harvest period (February, April, July, and October) planted on the campus of Chungbuk National University. The essential oil was separated by hydrodistillation. According to the analysis results of gas chromatography–mass spectrometry, the terpene compounds changed depending on the season and tree species. The proportions of monoterpene and sesquiterpene classes in the needles of P. densiflora, P. koraiensis, A. holophylla, and J. chinensis changed depending on the harvest period. The antioxidant activity by DPPH and ABTS assays varied depending on the species and seasons, and needles harvested from P. koraiensis showed the highest activity in all harvest periods. High antioxidant activity has been confirmed even at low concentrations in pine trees, so it is expected to play a role as a natural antioxidant. Additionally, since the composition of terpene compounds varies depending on the harvesting time and species, it is expected to have various uses in the pharmaceutical, cosmetics, and food industries.
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MDPI and ACS Style
Kim, E.; Yang, S.; Jeon, B.B.; Song, E.; Lee, H.
Terpene Compound Composition and Antioxidant Activity of Essential Oils from Needles of Pinus densiflora, Pinus koraiensis, Abies holophylla, and Juniperus chinensis by Harvest Period. Forests 2024, 15, 566.
https://doi.org/10.3390/f15030566
Kim E, Yang S, Jeon BB, Song E, Lee H.
Terpene Compound Composition and Antioxidant Activity of Essential Oils from Needles of Pinus densiflora, Pinus koraiensis, Abies holophylla, and Juniperus chinensis by Harvest Period. Forests. 2024; 15(3):566.
https://doi.org/10.3390/f15030566
Chicago/Turabian Style
Kim, Eunjin, Suyeon Yang, Byeong Bae Jeon, Eugene Song, and Hwayong Lee.
2024. “Terpene Compound Composition and Antioxidant Activity of Essential Oils from Needles of Pinus densiflora, Pinus koraiensis, Abies holophylla, and Juniperus chinensis by Harvest Period” Forests 15, no. 3: 566.
https://doi.org/10.3390/f15030566
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