Study on the Variation Law of Inclusions in Main Wolfberry Varieties in Different Periods in Qaidam Basin
In order to clarify the synthesis law of inclusions and their differences among different wolfberry varieties in Qinghai production area,this study took Ningqi No.1,No.5,No.7 and Qingqi No.1 as the experi-mental materials,and total sugar,polysaccharides,flavonoids,betaine,amino acids,carotenoids,and vitamin C of wolfberry fruits in the stage of green fruit,yellow fruit,and ripe fruit were measured,and the correlation among the inclusions of the fruits was analyzed,and the fruit quality was comprehensively evaluated by combi-ning with principal component analysis.The results showed that total sugar content in wolfberry increased grad-ually with the development of the fruit,while flavonoids and amino acids decreased gradually.Carotenoids and polysaccharides showed firstly increase and then decrease.Vitamin C content was the lowest in the green fruit stage,and fluctuated with the development of the fruit.The results of principal component analysis of wolfberry fruit showed that the better quality was Qingqi 1,followed by Ningqi 5.This study clarified the change rule of wolfberry fruit contents in different periods,and provided reference for the comprehensive development and utilization of the main wolfberry varieties in Qinghai production area.