Chinese jujube (Ziziphus jujuba Mill.), belongs to the family of Rhamnaceae, is a traditional Chinese medicine and has been reported to have many pharmacological activities, such as tonic, nourishing blood, enhancing body resistance etc. With the maturity of Chinese jujube, its peel changes from green green-white to yellow-white, half red and red. The thick red color of Chinese jujube, being regarded as“China Red”, is believed to be lucky, happy and auspicious in China. The aim of the study was to find the ...