Study on Quality and Volatile Substances of New Excellent Cabbage Varieties in Mountainous Area of Southern Ningxia.

In order to explore the differences in conventional quality and volatile components of different varieties of cabbage, the appearance quality, physical and chemical quality and volatile components of 8 varieties of cabbage were detected by physiological and biochemical methods and gas chromatography-ion mobility spectrometry (GCIMS), and their quality was comprehensively evaluated. The results showed that 'Nissen' had the largest leaf head weight. The vertical diameter and respiratory intensity of 'Tanchun' were higher than those of other varieties. The highest transverse diameter and vitamin C content were 'Wanfeng'; the contents of total soluble solids, titratable acidity and soluble sugar in 'Chenggong 65' were the highest. A total of 99 volatile substances were identified in 8 varieties of cabbage, among which aldehydes, alcohols and heterocyclic substances were the main components of the characteristic aroma of cabbage. The key volatile substances of cabbage mainly included anethole, 2-isobutyl-3-methyl pyrazine, 5-methyl-2-furanmethanol, linalool, 3-methylbutyl acetate, benzene acetaldehyde, 2-decenal and so on. The comprehensive evaluation model was constructed, and the highest comprehensive score was 'Zhonggan 107', which could be considered as an excellent variety for new variety breeding and directional breeding. Above results provided a direction for the subsequent development and utilization of 8 varieties of cabbage, and provided a theoretical basis for the quality evaluation, directional breeding and production and processing of cabbage in the mountainous area of southern Ningxia. [ABSTRACT FROM AUTHOR]