Feng Tao, Hu Zhongshan, Song Shiqing, Yao Lingyun, Sun Min, Zhu Xiao, Lu Jun
School of Perfume and Aroma Technology, Shanghai Institute of Technology Shanghai 201418 China
Research Computing, Information Technology at Purdue (ITaP), Department of Agricultural and Biological Engineering, Purdue University West Lafayette IN 47907 USA
RSC Adv. 2019 Dec 20;9(72):42360-42366. doi: 10.1039/c9ra06664k. eCollection 2019 Dec 18.
The antioxidant and tyrosinase inhibition properties of essential oil from the peel of Chinese Fort. (CTGF oil) were investigated. The antioxidant properties of CTGF oil were evaluated 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging tests, and it showed an IC value of 0.88 ± 0.06 μg mL compared to with a value of 1.0 ± 0.1 μg mL and BHT with a value of 2.9 ± 0.1 μg mL. CTGF oil had relatively significant DPPH scavenging activity ( < 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 ( < 0.05). The essential oil obtained after hydrodistillation from the peel of Chinese Fort. could be potentially utilized as a good new alternative source of natural antioxidants for the food and cosmetics industries.
研究了中国福橘（CTGF）果皮精油的抗氧化和酪氨酸酶抑制特性。通过2,2-二苯基-1-苦基肼（DPPH）自由基清除试验评估了CTGF精油的抗氧化特性，其IC50值为0.88±0.06μg/mL，相比之下，BHT的值为2.9±0.1μg/mL，另一个对照的值为1.0±0.1μg/mL。CTGF精油具有相对显著的DPPH清除活性（P<0.05），与其他天然油相比情况如下：桂皮油（92.4%）>薄荷油（89.1%）>丁香叶油（87.7%）>肉豆蔻油（80.1%）>CTGF精油（42.6%）>柠檬油（25.5%）。此外，还估计了不同处理组在储存60天期间过氧化物值的变化。CTGF精油显示出比柠檬油更好的抗氧化活性，其降低过氧化物值的活性与BHT相似。此外，CTGF精油通过酪氨酸酶有效地抑制了3,4-二羟基-L-苯丙氨酸（L-DOPA）的氧化（P<0.05）。从中国福橘果皮经水蒸馏得到的精油有可能作为食品和化妆品行业天然抗氧化剂的良好新替代来源。
