1. Hunan Provincial Engineering Research Center for Ginkgo biloba
2. Hunan University of Science and Engineering
3. Yongzhou 425100
4. China
5. Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education
6. Hunan University of Science and Technology
7. Xiangtan 411201
8. Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
9. Changsha University of Science and Technology
10. Changsha