Determination And The Extraction Of The Function Components In Jujube Date

Chapter1:The chemical active ingredients of jujube dates and their research progress have been discussed. The classification, physiological functions, extraction and separation method and structure identification have been reviewed. On the basis of these reviews, our own research contents and the innovative points were put forward.Chapter2:The functional components of jujube fruit, including one flavonoid, two pentacyclic triterpenes, were analyzed. High performance liquid chromatography and the ultra-high performance liquid chromatography methods were developed for characterization and quantitation of the functional components. The established methods could be used to determine subtle differences and explore potential chemical markers for differentiation among jujube fruit from different sources. Distribution of the chemical components among the different jujube fruit samples varied.Chapter3:Two cyclic nucleotides in jujube fruit were analyzed. High performance liquid chromatography and the ultra-high performance liquid chromatography methods were developed for characterization and quantitation of the cyclic nycleotides. The established methods could be used to determine subtle differences and explore potential chemical markers for differentiation among jujube fruit from different sources. Four cultivars of Chinese jujube had clearly differently functional compositions and jujube fruit were a good source of cyclic nucleotides.Chapter4:The crude oligosaccharides were obtained from Ziziphus Jujube dates by hot water extraction and membrane separation, and then purified by DEAE-52anion-exchange chromatography and gel chromatography. The average molecular weights of the oligosaccharides were estimated by HPLC analysis. The average molecular weights of oligosaccharides were estimated to be543Da,334Da and1459Da.Chapter5:A tasty, special-flavoured, nutritional and quality-stable complex capsule of oligosaccharides in jujube date and hawthorn capsule was prepared. Using the defective cracking Jujube date as the main raw material with the addition of the hawthorn and some other ingredients. The optimal extraction prescription and production parameters of the beverage were determined.