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dc.contributor.authorParra LLanos, John Wilmer
dc.contributor.authorRodrÍguez Ordoñez, Dora Cecilia
dc.contributor.authorTorres Herrera, Laura Natalia
dc.date.accessioned2021-11-08T17:16:50Z
dc.date.available2021-11-08T17:16:50Z
dc.date.issued2019-11-19
dc.identifier.urihttp://repositorio.ufps.edu.co/handle/ufps/763
dc.description.abstractThe method of analysis was standardized, and the folic acid content was determined in samples of fortified white rice (Z, G and D) and unfortified (E and O). The analysis was performed in triplicate in samples of 2.0000 g, hydrolysis was performed with phosphate buffer pH 8.82 for one hour and then lowered to pH 7.00 for enzymatic treatment with takadiastase at 65°C. The extracts were filtered by gravity, purified with nylon syringe filters and ion exchange cartridges (solid phase extraction using strong anion exchange cartridges). The concentration in mg folic acid/kg of rice, in each extract was determined by ultrafast liquid chromatography, with average values for Lot1 of the fortified rice samples, of 44.03, 51.95, 38.08, and unfortified samples of 31.51 and 21.94, and with respect to Lot2 of 41.26, 41.27, 34.54 for fortified ones and 24.92 and 20.94 for non-fortified ones, respectively. The concentration of folic acid obtained by filtration through syringe filters was higher than in the extracts purified by solid phase extraction using strong anion exchange cartridges, evidencing loss of the analyte. The recovery of folic acid in the samples doped and purified by syringe filters was around 65.00%, while by solid phase extraction using strong anion exchange cartridges 43.00%. There is evidence of variation in the folic acid content between different batches of rice of the same brand.eng
dc.format.extent07 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.language.isoengspa
dc.publisherJournal of Physics: Conference Seriesspa
dc.relation.ispartofJournal of Physics: Conference Series
dc.rightsContent from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.eng
dc.sourcehttps://iopscience.iop.org/article/10.1088/1742-6596/1388/1/012037/metaspa
dc.titleAnalysis of folic acid in white rice by ultra-fast liquid chromatographyeng
dc.typeArtículo de revistaspa
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dc.identifier.doihttps://doi.org/10.1088/1742-6596/1388/1/012037
dc.publisher.placeReino Unidospa
dc.relation.citationeditionVol.1388 No.1.(2019)spa
dc.relation.citationendpage7spa
dc.relation.citationissue1(2019)spa
dc.relation.citationstartpage1spa
dc.relation.citationvolume1388spa
dc.relation.citesRodríguez, D. C., Torres, L. N., & Parra, J. W. (2019, November). Analysis of folic acid in white rice by ultra-fast liquid chromatography. In Journal of Physics: Conference Series (Vol. 1388, No. 1, p. 012037). IOP Publishing.
dc.relation.ispartofjournalJournal of Physics: Conference Seriesspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.creativecommonsAtribución 4.0 Internacional (CC BY 4.0)spa
dc.type.coarhttp://purl.org/coar/resource_type/c_6501spa
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dc.type.driverinfo:eu-repo/semantics/articlespa
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTspa
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oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
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