綦江皱皮木瓜果实有机酸特征性成分鉴定与 不同发育期变化规律

刘世尧,冉慧,毛运芝,陈欣瑜

Identification of the Fruit Characteristic Organic Acids of Chaenomeles speciosa from Qijiang, Chongqing by GC-MS and Their Dynamic Change Researching During Its Fruit Developing Period

LIU ShiYao,RAN Hui,MAO YunZhi,CHEN XinYu

图5 綦江皱皮木瓜不同发育期果实有机酸特征性成分PCA分析 1：草酸;2：丙二酸;3：戊酸;4：富马酸;5：α-酮戊二酸;6：苹果酸;7：琥珀酸;8：反式乌头酸;9：柠檬酸;10：异柠檬酸;11：水杨酸;12：奎尼酸;13：莽草酸;14：棕榈酸;15：亚油酸;16：油酸;17：10,13-二十碳二烯酸;18：10-羟基-十六烷酸;19：7-羟基-十八烷酸;20：十九烷酸;21：二十四烷酸;22：9,10-二羟基-十八烷酸;23：二十一烷酸;24：苯甲酸。底部横座标与左侧纵座标表示两个主成分方差贡献率,顶部模座标与右侧纵座标表示自变量载荷值

Fig. 5 PCA analysis based on the common organic acids components of C. speciosa fruit samples during its developing period The numbers represent the compounds 1: Oxalic acid; 2: Malonic acid; 3: Pentanoic acid; 4: Fumaric acid; 5: α-ketoglutaric acid; 6: Malic acid; 7: Succinic acid; 8: 1-Propene-1,2,3-tricarboxylic acid; 9: Citric acid; 10: 1-hydroxy-1,2,3-Propanetricarboxylic acid; 11: p-Hydroxybenzoic acid; 12: Quinic acid; 13: Shikimic acid; 14: Hexadecanoic acid; 15: 9,12-Octadecadienoic acid; 16: 9-Octadecenoic acid; 17: 10,13-Eicosadienoic acid; 18: 10-hydroxy-Hexadecanoic acid; 19: 7-hydroxy-Octadecanoic acid; 20: Nonadecanoic acid; 21: Tetracosanoic acid; 22: 9,10-dihydroxy-Octadecanoic acid; 23: Heneicosanoic acid; 24: Benzoic acid. The coordinate axis values represents the correlation coefficients between the principal components and the original variables