Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10542288 | Food Chemistry | 2013 | 8 Pages |
Abstract
The conditions for headspace solid phase microextraction (HS-SPME) analysis of volatile off-flavour compounds in citral emulsion were determined. Type of SPME phase (65 μm PDMS/DVB, 100 μm PDMS and 75 μm CAR/PDMS), adsorption temperature and salt concentration were significant factors affecting total peak area in the gas chromatogram and optimised in one factor experiments. Then, adsorption temperature (30-50 °C), adsorption time (20-40 min), and salt concentration (0-6 M) were studied to develop HS-SPME condition for obtaining the highest extraction efficiency. PDMS/DVB in 65 μm was the optimum fiber because of high adsorption efficiency and good reproducibility. The optimal condition was adsorption at 50 °C for 40 min and 6 M salt added to sample. Good Linearity, high recovery, good reproducibility and low limit of detection (LOD) for all off-odour compounds according to the optimised SPME conditions indicated that the SPME procedure was applicable for the analysis of the degraded citral products in headspace volatile of emulsion.
Related Topics
Physical Sciences and Engineering
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Authors
Huaixiang Tian, Xiaoqing Yang, Chi-Tang Ho, Qingrong Huang, Shiqing Song,