Abstract: Volatile constituents of main apricot cultivars in Xinjiang were studied to provide basic information for production and breeding. The aromatic substances in the fruits of 14 apricot cultivars , including Kuchexiaobaixing,Guoxiyulvke,Kuerleituoyong,Dayoubai,Heiyexing,Danxing,Kuchetuoyong,Kuikepiman,Dayoujia,Saimaiti,Kumaiti,Luotuohuang,Mulongxing and Aketuoyong,were identified by using headspace solid phase microextraction and GC-MS. Results showed that 208 aromatic components were identified, including 80 kinds of esters, 25 kinds of aldehydes, 21 kinds of ketones, 39 kinds of alcohols, 27 kinds of alkyl substances, one kind of acid substances and 15 kinds of other substances. The main volatile constituents were propyl acetate; 3-methyl-1-butanol, acetate; 3-hexen-1-ol, acetate, (Z)-; D-limonene; β-linalool; hexanal; hexyl acetate; butyl acetate; β-Myrcene; ethyl butanoate; β-cis-ocimene. Main volatile components and their relative contents were main differences among these cultivars, and there were no significant difference between the Northern China group and The Central Asian group varieties.

Key words: apricot, aromatic substances, GC-MS