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Comment Separation Processes

Solvent-free recovery of plant-based extracts

By Mary Page Bailey |

Plant-based extracts, such as antioxidants, phytochemicals and polyphenols, are used in a number of end-markets, including cosmetics, foods and nutritional supplements. A proprietary, low-polarity, pressurized-water extraction method is set to drastically improve the recovery of useful ingredients from botanical sources. Mazza Innovation Ltd. (Vancouver, B.C., Canada; www.mazzainnovation.com) designed the PhytoClean botanical extraction technology to be free of solvents, preservatives and excipients, making it more environmentally friendly than similar extraction technologies. Typically, botanical extraction processes depend on hydrocarbon-based solvents, which can lead to the presence of residual solvents or carrier compounds in end products. The PhytoClean method uses only water, manipulating the polarity of water molecules to control the solubility of targeted bioactive compounds at temperature and pressure conditions where water is still a liquid but its hydrogen bonds are disrupted, enabling the concentration of bioactive compounds in the water. According to the company, this method has shown comparable or better performance with regard to processing time, selectivity and yield, when compared to traditional extraction solvents,…
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