Value-added Ontario Ginseng Products PDF: Robert Bi Supervisor: Jesse Zhu Oct. 2010.

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Presentation transcript:

Value-added Ontario Ginseng Products PDF: Robert Bi Supervisor: Jesse Zhu Oct. 2010

Backgrounds  Ontario is one of the world’s largest North American ginseng producers  Ginseng has multiple health benefits  Ginseng products have a increasing market especially in far east  Most of the ginseng Ontario exported is ginseng roots, more value-added products are needed to promote the margin profits of Ontario ginseng industry

Research Plan Grind to Fine Powder Better Absorption Better Effects Extraction Aqueous Extract Ethanol Extract Make into New Dosage Forms

 Ontario ginseng is ground with jet mill  Powders with sizes ranging from 13um to 100um were tested and smaller powder showed a higher ginsenosides release Ginseng Powder Product Fine Ginseng Powder

Ginseng Powder Product Tablet Preparation

Ginseng Powder Product Chewable Tablets  Using those fine powders, chewable tablets were with different flavours were developed for market survey and possible clinical tests  Dissolution curves of the chewable tablets and Jamieson ginseng tablets were compared

Ginseng Aqueous Extract Regular & Chewable Tablets  Ontario ginseng is extracted by water and the product was spray-dried to prevent the loss of its biological activity  Regular tablets and Chewable tablets were made and dissolution tests showed that they contain more ginsenoside Re and Rb1 than two Chinese products

Ginseng Aqueous Extract Thermal-sensitive Gels  Thermal-sensitive gels – which can transform from solid (or liquid) status at 20 ℃ to liquid (or solid ) status at 37 ℃ 20 ℃ 37 ℃

Ginseng Ethanol Extract Research Outline  Ontario ginseng is extracted by 70% alcohol and the product was spray- dried to get powder

Ginseng Ethanol Extract Regular & Chewable Tablets  Regular tablets and Chewable tablets, which contain up to 60% spray-dried powder, were made for regular consumption.  Dissolution curves of the two products were tested and compared with the dissolution curves of two kinds of fast-release tablets.

Ginseng Ethanol Extract Fast-release Tablets  Effervescent tablets: dissolve in a cup of cold water within 10 minutes  Oral dispersible tablets: collapse in a small amount of cold water within 3 minutes Left: regular tablet; Right: dispersible tablet 0 min 3mins

Ginseng Ethanol Extract Dissolution Curves  Within 5 minutes, fast-release tablets can reach maximum release. However, it takes regular and chewable tablets up to 30 minutes to release most of the ginsenosides in them.

FUTURE WORK High Purity Ginsenosides

Thank You Robert Bi Department of Chemical & Biochemical Engineering The University of Western Ontario Tel: Ext Website: