The antioxidant and tyrosinase inhibition properties of essential oil from the peel of Chinese Torreya grandis Fort

Tao Feng; Zhongshan Hu; Shiqing Song; Lingyun Yao; Min Sun; Xiao Zhu; Jun Lu

doi:10.1039/c9ra06664k

The antioxidant and tyrosinase inhibition properties of essential oil from the peel of Chinese Torreya grandis Fort

RSC Adv. 2019 Dec 20;9(72):42360-42366. doi: 10.1039/c9ra06664k. eCollection 2019 Dec 18.

Authors

Tao Feng¹, Zhongshan Hu¹, Shiqing Song¹, Lingyun Yao¹, Min Sun¹, Xiao Zhu², Jun Lu³

Affiliations

¹ School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 China fengtao@sit.edu.cn 18827511750@163.com sshqingg@163.com Lyyao@sit.edu.cn sunmin@sit.edu.cn.
² Research Computing, Information Technology at Purdue (ITaP), Department of Agricultural and Biological Engineering, Purdue University West Lafayette IN 47907 USA zhu472@purdue.edu.
³ Faculty of Health and Environmental Sciences, Auckland University of Technology New Zealand jun.lu@aut.ac.nz.

Abstract

The antioxidant and tyrosinase inhibition properties of essential oil from the peel of Chinese Torreya grandis Fort. (CTGF oil) were investigated. The antioxidant properties of CTGF oil were evaluated via 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging tests, and it showed an IC₅₀ value of 0.88 ± 0.06 μg mL^-1 compared to V _C with a value of 1.0 ± 0.1 μg mL^-1 and BHT with a value of 2.9 ± 0.1 μg mL^-1. CTGF oil had relatively significant DPPH scavenging activity (p < 0.05), which could be compared to other natural oils as follows: cassia oil (92.4%) > peppermint oil (89.1%) > clove leaf oil (87.7%) > nutmeg oil (80.1%) > CTGF oil (42.6%) > lemon oil (25.5%). Furthermore, changes in the peroxide values of different treatment groups during storage for 60 days were estimated. CTGF oil displayed better antioxidant activity than lemon oil, with activity similar to that of BHT for the reduction of the peroxide value. Moreover, CTGF oil effectively inhibited the oxidation of 3,4-dihydroxy-l-phenylalanine (l-DOPA) through tyrosinase (P < 0.05). The essential oil obtained after hydrodistillation from the peel of Chinese Torreya grandis Fort. could be potentially utilized as a good new alternative source of natural antioxidants for the food and cosmetics industries.