Kang, Xin-cong, Horticulture College, Hunan Agricultural University, Changsha, Hunan, P. R. China; Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha, Hunan, P. R. China; State Key Laboratory of Subhealth Intervention Technology, Changsha, Hunan, P. R. China; and Hunan Co-Innovation Center for Utilization of Botanical Functional Ingredients, Changsha, Hunan, P. R. China, China