Lina Guan

Prof. Dr. Lina Guan

Department of Tourism and Cooking, Harbin University of Commerce; Institute of Cereal Processing Science and Technology,Academy of National Food and Strategic Reserves Administration, P.R.C.

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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9 June 2022 in Foods
Verified
Journal Article
Open access
PDF file
SASailimuhan Asimi
Sailimuhan Asimi
XRXin Ren
Xin Ren
MZMin Zhang
Min Zhang
SLSixuan Li
Sixuan Li
LGLina Guan
Lina Guan
ZWZiyuan Wang
Ziyuan Wang
Rice’s geographic origin and variety play a vital role in commercial rice trade and consumption. However, a method for rapidly discriminating the geographical origins of rice from a different region is still lacking. Therefore, the current study developed a volatile organic compound (VOC) based geographical discrimination method using headspace gas chromatography-mass spectrometry (HS-GC-MS) to discriminate rice samples from Heilongjiang, Jilin, and Liaoning provinces. The rice VOCs in Heilongjiang, Liaoning, and Jilin were analyzed by agglomerative hierarchical clustering (AHC), principal component analysis (PCA), and partial least squares discriminant analysis (PLS-DA). The results show that the optimum parameters for headspace solid phase microextraction (HS-SPME) involved the extraction of 3.0 g of rice at 80 °C within 40 min. A total of 35 VOCs were identified from 30 rice varieties from Northeast China. The PLS-DA model exhibited good discrimination (R2 = 0.992, Q2 = 0.983, and Accuracy = 1.0) for rice samples from Heilongjiang, Liaoning, and Jilin. Moreover, K-nearest neighbors showed good specificity (100%) and accuracy (100%) in identifying the origin of samples. In conclusion, the present study established VOC fingerprinting as a highly efficient approach to identifying rice’s geographical origin. Our findings highlight the ability to discriminate rice from Heilongjiang, Liaoning, and Jilin provinces rapidly.

3 October 2024 in Journal of Food Science and Technology
Verified
Journal Article
Closed access
PDF file
GYGuodong Ye
Guodong Ye
LGLina Guan
Lina Guan
MZMin Zhang
Min Zhang