| Headspace-solid phase micro-extraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was
employed for analyzing volatile flavor substances (VFS) in lemon pulp, and the condition was optimized. Heyuan Eureka,
Guangzhou Eureka and Guangzhou Lisbon were compared. And D-lemonene directly determining method in lemon pulp by
HS-GC-MS was also established. The probe with 50/30 m DVB/CAR/PDMS showed the best adsorption results. Dlemonene
was the main compound in the volatile flavor substances. Guangzhou Lisbon had the most sorts of volatile flavor
substances with higher content. When we determined D-lemonene, 25 mL headspace bottle was employed with keeping
50益for 30 min and 7 levels of mass of lemon pulp were selected for establishing the standard curve, which had good
linearity. Thereby, it was possible to make standard curve by real fruits. Guangzhou Eureka had the highest D-lemonene
concentration in three different sorts of lemons by the standard curve above. |
