1. Key Laboratory of Quality and Safety Control of Citrus Fruits, Ministry of Agriculture and Rural Affairs, Citrus Research Institute, Southwest University, Chongqing 400712, P. R. China
2. Laboratory of Quality & Safety Risk Assessment for Citrus Products (Chongqing), Ministry of Agriculture and Rural Affairs, Chongqing 400712, P. R. China
3. National Citrus Engineering Research Center, Chongqing 400712, P. R. China