Quality Analysis and Evaluation of Taoling Sanwei Pepper, Knit Line No.1 Line Pepper and Bola Tianjian Pod Pepper

Objective:The quality indicators of Bola Tianjian Pod Pepper, Knit Line No.1 Line Pepper and Taoling Sanwei Pepper including fruit shape index, pulp thickness, fruit cavity size, color (L^* value, a^* value, b^* value), physical property index (hardness, chewiness, cohesiveness, elasticity, adhesion), reducing sugar, sucrose, total sugar, total acid, soluble solids, solid acid ratio, amino acid nitrogen were compared and analyzed, and principal component analysis and cluster analysis were performed on the above 18 quality indicators. The results showed that through the principal component analysis and principal component factor analysis, the three types of peppers were ranked as Bola Tianjian Pod Pepper, Knit Line No.1 Line Pepper and Taoling Sanwei Pepper. Cluster analysis divided the quality indicators of pepper into two categories. Among them, the hardness was grouped into one class, and the remaining 17 indicators were grouped into one class. According to the comprehensive analysis of 18 indicators, Bola Tianjian Pod Pepper strain had better comprehensive quality, and its pulp thickness, hardness, chewiness and elasticity were better than those of Knit Line No.1 Line Pepper and Taoling Sanwei Pepper. From the overall point of view, Bola Tianjian Pod Pepper could be promoted and studied as an ideal processing type of pepper strain.