Phytoncidere is a type of volatile organic compound with fragrant odor emitted from plant tissues naturally. As one of health-related ecotourism resources, Phytoncidere has many sanitarian functions, such as bacteriostasis, preventing and curing diseases etc. The discovery, biosynthesis approach, influences of environmental factors on releasing of Phytoncidere and their effects on human health are reviewed in this paper. The research techniques and applications of Phytoncidere are also discussed. Based on the present studies on Phytoncidere, most researches in this area has been focused on the composition, content, medical mechanism and releasing mechanisms of Phytoncidere. However, further studies on the taboo of Phytoncidere, the best content and time for human body, the best combination of plant species and most effective approach to utilize the Phytoncidere are needed in the future.
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