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Study Results from City University of Hong Kong Broaden Understanding of Agriculture and Food Chemistry

January 30, 2014

By a News Reporter-Staff News Editor at Food Weekly News -- Research findings on Agriculture and Food Chemistry are discussed in a new report. According to news reporting from Hong Kong, People's Republic of China, by VerticalNews journalists, research stated, "A matrix solid-phase dispersion (MSPD) procedure with titanium dioxide (TiO2) nanoparticles (NP) as sorbent was developed for the selective extraction of phospholipids from almond samples, and matrix-assisted laser desorption ionization-time-of-flight mass spectrometry (MALDI-TOF/MS) was employed for analysis. A remarkable increase in the signals of phospholipid accompanied by a decrease in those of triacylglycerols and diacylglycerols was observed in the relevant mass spectra."

The news correspondents obtained a quote from the research from the City University of Hong Kong, "The proposed method was applied to five batches of almonds originating from four geographical areas, whereas principal component analysis (PCA) was utilized to normalize the relative amounts of the identified phospholipid species. The results indicated that the lipidomic fingerprint of almonds was successfully established by the negative ion mode spectrum, and the ratio of m/z 833.6 to 835.6 as well as m/z 821.6 could be introduced as potential markers for the differentiation of the tested almonds with different geographical origins."

According to the news reporters, the research concluded: "The whole method is of great promise for selective separation of phospholipids from nonphospholipids, especially the glycerides, and superior in fast screening and characterization of phospholipids in almond samples."

For more information on this research see: Lipidomic fingerprint of almonds (Prunus dulcis L. cv Nonpareil) using TiO? nanoparticle based matrix solid-phase dispersion and MALDI-TOF/MS and its potential in geographical origin verification. Journal of Agricultural and Food Chemistry, 2013;61(32):7739-48. (American Chemical Society -; Journal of Agricultural and Food Chemistry -

Our news journalists report that additional information may be obtained by contacting Q. Shen, Dept. of Chemistry and Biology, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, People's Taiwan. Additional authors for this research include W. Dong, M. Yang, L. Li, H.Y. Cheung and Z. Zhang.

Keywords for this news article include: Asia, Hong Kong, People's Republic of China, Agriculture and Food Chemistry.

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Source: Food Weekly News

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