1. Key Laboratory of Cultivation and Protection for Non-Wood Forest Trees of Ministry of Education and the Key Laboratory of Non-Wood Forest Products of Forestry Ministry, Central South University of Forestry and Technology, Changsha, Hunan, 410004, People's Republic of China
2. Hunan Great Sanxiang Camellia Oil Co., Ltd, Hengyang, Hunan 421000, People's Republic of China