Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food
A system for dynamic continuous-flow dialysis during intestinal digestion for an in vitro simulation of gastrointestinal digestion is presented as an alternative to human and animal in vivo methods for estimation of the bioavailability of minerals. The method is based on the in vitro batch dialysis...
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th-mahidol.231802018-08-20T13:56:38Z Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food Juwadee Shiowatana Wutthika Kitthikhun Upsorn Sottimai Jeerawan Promchan Kanokwan Kunajiraporn Mahidol University Chemistry A system for dynamic continuous-flow dialysis during intestinal digestion for an in vitro simulation of gastrointestinal digestion is presented as an alternative to human and animal in vivo methods for estimation of the bioavailability of minerals. The method is based on the in vitro batch dialysis method described by Miller, which was developed into a continuous-flow system of a simple design to perform dynamic dialysis in the intestinal digestion stage. A flow dialysis system has the advantages of simulation being close to in vivo physiological conditions because pH change during dialysis is gradual and dialyzed components are continuously removed. The proposed new design performed dialysis during a continuous flow of dialyzing solution (NaHCO3) around a dialysis bag containing peptic digest, which is placed inside a glass dialysis chamber. Gradual change of dialysis pH, similar to that occurring in the gastrointestinal tract, was obtained by optimization of flow rate and concentration of NaHCO3. The dialysate collected in fractions was analyzed to determine dialyzed minerals and pH change in the course of dialysis. The method was tested by determination of calcium bioavailability of powder milk and calcium carbonate tablets. © 2005 Elsevier B.V. All rights reserved. 2018-08-20T06:56:38Z 2018-08-20T06:56:38Z 2006-01-15 Article Talanta. Vol.68, No.3 (2006), 549-557 10.1016/j.talanta.2005.04.068 00399140 2-s2.0-30144440672 https://repository.li.mahidol.ac.th/handle/123456789/23180 Mahidol University SCOPUS https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=30144440672&origin=inward |
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Chemistry Juwadee Shiowatana Wutthika Kitthikhun Upsorn Sottimai Jeerawan Promchan Kanokwan Kunajiraporn Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
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A system for dynamic continuous-flow dialysis during intestinal digestion for an in vitro simulation of gastrointestinal digestion is presented as an alternative to human and animal in vivo methods for estimation of the bioavailability of minerals. The method is based on the in vitro batch dialysis method described by Miller, which was developed into a continuous-flow system of a simple design to perform dynamic dialysis in the intestinal digestion stage. A flow dialysis system has the advantages of simulation being close to in vivo physiological conditions because pH change during dialysis is gradual and dialyzed components are continuously removed. The proposed new design performed dialysis during a continuous flow of dialyzing solution (NaHCO3) around a dialysis bag containing peptic digest, which is placed inside a glass dialysis chamber. Gradual change of dialysis pH, similar to that occurring in the gastrointestinal tract, was obtained by optimization of flow rate and concentration of NaHCO3. The dialysate collected in fractions was analyzed to determine dialyzed minerals and pH change in the course of dialysis. The method was tested by determination of calcium bioavailability of powder milk and calcium carbonate tablets. © 2005 Elsevier B.V. All rights reserved. |
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Mahidol University |
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Mahidol University Juwadee Shiowatana Wutthika Kitthikhun Upsorn Sottimai Jeerawan Promchan Kanokwan Kunajiraporn |
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Juwadee Shiowatana Wutthika Kitthikhun Upsorn Sottimai Jeerawan Promchan Kanokwan Kunajiraporn |
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Juwadee Shiowatana |
title |
Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
title_short |
Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
title_full |
Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
title_fullStr |
Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
title_full_unstemmed |
Dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
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dynamic continuous-flow dialysis method to simulate intestinal digestion for in vitro estimation of mineral bioavailability of food |
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2018 |
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https://repository.li.mahidol.ac.th/handle/123456789/23180 |
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1763489779367804928 |