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Seasonal dynamics of VOCs released from Cinnamomun camphora forests and the associated adjuvant therapy for geriatric hypertension
Industrial Crops and Products  (IF5.645),  Pub Date : 2021-10-18, DOI: 10.1016/j.indcrop.2021.114131
Qi Zhou, Jinfeng Wang, Qing Wu, Zhuomei Chen, Guofu Wang

Cinnamomun camphora is an important species for afforestation in southern China and is widely used in landscaping. To explore the seasonal dynamics of the volatile organic compounds (VOCs) released from Cinnamomun camphora forests and the adjuvant therapeutic effect of forest bathing on elderly patients with hypertension (HTN), the components and relative contents of VOCs released by a Cinnamomun camphora forest were analysed, and the blood pressure and inflammation of elderly patients with HTN experiencing forest bathing were studied. Variations in the components and relative contents of VOCs released by the Cinnamomun camphora forest were detected among the seasons, and the alkanes varied more widely than the other kinds of VOCs. The relative contents of alkanes and organic acids were greater than those of the other kinds of VOCs in spring and winter, while the VOCs released in autumn and summer contained higher proportions of terpenes. Forest bathing in Cinnamomun camphora forests in autumn, summer and spring had a high auxiliary regulatory effect on blood pressure and inflammation in elderly patients with HTN, which may be closely related to terpenes and negative oxygen ions. However, forest bathing in Cinnamomun camphora forests in winter was not conducive to the therapy of elderly patients with HTN. The results not only lay the foundation for research on the release of VOCs from Cinnamomun camphora forests but also provide a reference for studies on the influences of forest bathing on human health.