Determination and characteristic analysis of aroma components of different varieties of rabbit-eye blueberries in Guizhou
To investigate and clarify the aroma components and contents of different varieties of Guizhou rabbit-eye blueberries,this study used headspace-solid phase microextraction and gas chromatography-mass spectrometry(HS-SPME/GC-MS)methods to analyze the aroma components content of the main rabbit-eye blueberry grown in Guizhou,such as'Coastal','Britewell','Climax','Tifblue'and'Powderblue'.The results were as follows:(1)A total of 46 aroma components in 7 categories were detected in the 5 varieties,including 8 types of alcohols,13 types of terpenes,9 types of benzenes,3 types of aldehydes,5 types of esters,4 types of alkanes,and 4 types of others.(2)'Climax'had the most aroma components with 33 types,while'Powderblue'had the least with only 24 types;among the aroma components of each variety,aldehydes accounted for the largest proportion,followed by benzenes,with'Britewell'having the highest content of aldehydes(59.32%)and'Powderblue'the highest content of benzenes(42.58%).(3)Among the five varieties,'Coastal'had the highest total content of aroma components,at 172 872.18 ng·g-1,followed by'Britewell'at 162 200.88 ng·g-1;'Coastal'and'Powderblue'had lower total aroma component contents,at 91 284.45 ng·g-1 and 97 511.10 ng·g-1,respectively.The significant differences in aroma components and contents among these five rabbit-eye blueberry varieties provide an important basis for the selection of blueberry varieties and the choice of raw materials.
Guizhourabbit-eye blueberryaroma componentheadspace-solid phase microextraction and gas chromatography-mass spectrometry(HS-SPME/GC-MS)characteristic analysis