Abstract: Headspace solid-phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS) was used to detect and analyze the aroma components of seven small berries that were introduced from Northeast China or Russia to Shijiazhuang, Xingtai and Zhangjiakou in Hebei province. The experimental data were analyzed by principal component analysis (PCA) using the SPSS 17.0 software. Results showed that a total of 150 aroma components were detected, with 31, 59, 47, 54, 39, 48 and 41 of them being present in blueberry, Cerasus humilis, Fengmanhong raspberry, Autumn Bliss raspberry, Harry Heritage raspberry, blackcurrant and goldenberry (Physalis peruviana), respectively. The main aroma compounds of blueberry were alcohols and aldehydes, constituting 43.9% and 40.9% of the total amount, respectively. The main aroma compounds of blackcurrant and Cerasus humilis were esters, accounting for 67.6% and 80.7% of the total amount, respectively. The main aroma compounds of Fengmanhong raspberry were alcohols and esters, representing 60.0% and 28.6% of the total amount, respectively. The main aroma compounds of Autumn Bliss raspberry and Harry Heritage raspberry were alcohols, accounting for 41.75% and 37.37% of the total amount, respectively. Ketones and esters were the main aroma compounds of goldenberry, accounting for 31.9% and 27.3% of the total amount, respectively. Our data on the aroma components of these seven berries can pave the foundation for their industrial development and utilization.

Key words: headspace solid phase microextraction (HS-SPME), gas chromatography-mass spectrometry (GC-MS), principal component analysis (PCA), berry, aroma compounds