Comparative analysis of volatile aromatic compounds from a wide range of pear (Pyrus L.) germplasm resources based on HS-SPME with GC–MS. (30th August 2023) - Wang, Xiaohua
Highlights: 221 major volatile components were detected in the mature fruits of 202 pear cultivars. 202 pear cultivars were divided into aldehydes or ester-dominant types. Aroma compositions of pear varied among species, maturing periods and geographic origins. Abstract: Aroma is one of the most important sensory characteristics of fruit quality. Here, the aroma composition of mature fruits of 202 pear cultivars was detected by headspace solid-phase microextraction (HS-SPME) with gas chromatography-mass spectrometry (GC–MS). As a result, 221 major volatile components were detected, among which aldehydes, esters and alcohols were the most dominant aroma components. We also found Pyrus communis L. had the highest volatile content, followed by Pyrus sinkiangensis Yu, Pyrus ussuriensis Maxim., Pyrus bretschneideri Rehd., Hybrid Breeding cultivar group, Chinese sand pears ( Pyrus pyrifolia Nakai), and Japanese and Korean (J&K) sand pears ( Pyrus pyrifolia Nakai). In addition, the aroma composition and contents varied greatly among the different ripening-period groups. Finally, the fruits of pear germplasms also showed geographical flavor characteristics. These basic data and results could help us better understanding the variations of aroma quality among pear varieties and promote the development of pear breeding program.