Ni Liang, Shi Wei-Yong
Key Laboratory o f Polluted Environment Remediation a nd Ecological Health, Ministry of Education, College of Natural Resources and Environmental Science, Zhejiang University, Hangzhou, China .
Iran J Pharm Res. 2014 Winter;13(1):221-6.
In this study, we measured the composition and free radical scavenging activity of several species of nuts, namely, Torreya grandis, Carya cathayensis, and Myrica rubra. The nut kernels of the aforementioned species are rich in fatty acids, particularly in unsaturated fatty acids, and have 51% oil content. T. grandis and C. cathayensis are mostly produced in ZheJiang province. The trace elements in the kernels of T. grandis and C. cathayensis were generally higher than those in M. rubra, except for Fe with a value of 64.41 mg/Kg. T. grandis is rich in selenium (52.91-68.71 mg/Kg). All three kernel oils have a certain free radical scavenging capacity, with the highest value in M. rubra. In the DPPH assay, the IC50 of M. rubra kernel oil was 60 μg/mL, and OH was 100 μg/mL. The results of this study provide basic data for the future development of the edible nut resources in ZheJiang province.
在本研究中，我们测定了几种坚果的成分及自由基清除活性，这几种坚果分别是香榧、山核桃和杨梅。上述种类的坚果仁富含脂肪酸，尤其是不饱和脂肪酸，含油率达51%。香榧和山核桃主要产于浙江省。除铁含量为64.41毫克/千克外，香榧和山核桃果仁中的微量元素普遍高于杨梅。香榧富含硒（52.91 - 68.71毫克/千克）。三种果仁油均具有一定的自由基清除能力，其中杨梅的清除能力最强。在DPPH测定中，杨梅果仁油的IC50为60微克/毫升，对羟基自由基的IC50为100微克/毫升。本研究结果为浙江省食用坚果资源的未来开发提供了基础数据。
