News Column

Researchers from College of Food and Bioengineering Describe Findings in Chromatography

June 27, 2014

By a News Reporter-Staff News Editor at Science Letter -- A new study on Science is now available. According to news reporting originating in Shandong, People's Republic of China, by NewsRx journalists, research stated, "In this study, a two-step process combining aqueous two-phase extraction (ATPE) with chromatography was developed for extraction and purification of alliin from garlic powder. The partition coefficient and yield value of alliin in different types of aqueous two-phase system (ATPS) were compared and response surface methodology (RSM) was used for analyzing and optimizing the extraction process."

The news reporters obtained a quote from the research from the College of Food and Bioengineering, "The optimal extraction conditions of 19% (w/w) (NH4)2SO4, 20% (w/w) 1-prpanol, at 30C, pH 2.35 with 8.54% (w/w) NaCl was chosen based on the higher yield. Compared to the results obtained with the conventional extraction method, this method had an evident advantage on yield (20.4mg/g versus the original yield of 15.0mg/g) and the concentration of alliin in extract solution by ATPE was close to three times of that with conventional extraction. The purification of alliin was carried out with the ammonium form of sulfonic acid cation-exchange resins 001 x 7. Sample solution with alliin concentration of 1mg/mL was passed through resins and the desorption of alliin was accomplished by water at the flow velocity of 0.5mL/min, 1.5mL/min, respectively."

According to the news reporters, the research concluded: "The purity and recovery of alliin after purification were 80% and 76%, respectively."

For more information on this research see: Combination of aqueous two-phase extraction and cation-exchange chromatography: new strategies for separation and purification of alliin from garlic powder. Journal of Chromatography B, Analytical Technologies In the Biomedical and Life Sciences, 2014;957():60-7 (see also Science).

Our news correspondents report that additional information may be obtained by contacting X.M. Jiang, Shandong Provincial Key Laboratory of Fine Chemicals, College of Food and Bioengineering, Qilu University of Technology, Jinan, Shandong 250353, People's Republic of China. Additional authors for this research include Y.M. Lu, C.P. Tan, Y. -Liang and B. Cui.

Keywords for this news article include: Asia, Science, Shandong, People's Republic of China.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

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Source: Science Letter

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