Sagrario Galvez Beltran - Academia.edu (original) (raw)
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Papers by Sagrario Galvez Beltran
Antioxidants, 2020
Brewer’s spent grain (BSG) was chemically characterized obtaining 52.1% of carbohydrates, 17.8% p... more Brewer’s spent grain (BSG) was chemically characterized obtaining 52.1% of carbohydrates, 17.8% protein, 5.9% lipids, 13.5% insoluble lignin and 24.3% of water-soluble extractives. This work has been focused on the study of polyphenol extraction of the extractive fraction by water ultrasound-assisted extraction. Selected extraction conditions were 47 °C and 21.7 mL water/gdry-BSG. The effect of solvent polarity on polyphenol extraction was studied by using ethanol aqueous mixtures, from 20% to 100% ethanol. The kinetics of polyphenol extraction have been fitted to the power law and the Weibull models yielding mean values of the root mean square deviation lower than 7.5%. Extracts have been characterized in terms of quantification of individual phenolic compounds by HPLC-DAD and protein and sugar soluble fractions (glucose, xylose, and arabinose). Polyphenol profile has been compared with other hydrolytic techniques, such as acid, basic and enzymatic hydrolysis, showing that ultrasou...
The Journal of Supercritical Fluids, 2018
To JCyL and ERDF for financial support of project BU055U16 and O.Benito-Román's Post-doctoral con... more To JCyL and ERDF for financial support of project BU055U16 and O.Benito-Román's Post-doctoral contract. To MINECO and ERDF for financial support of AEI's contract through project CTQ2015-64396-R. To MINECO for RM's pre-doctoral contract (BES-2013-063937). To ESF and Consejería de Educación of the JCyL for financial support of the technician Sarai del Rio Melgosa through the YEI program www.ubu.es/bioind EUROPEAN REGIONAL DEVELOPMENT FUND EUROPEAN SOCIAL FUND
2009 WRI World Congress on Computer Science and Information Engineering, 2009
Antioxidants, 2020
Brewer’s spent grain (BSG) was chemically characterized obtaining 52.1% of carbohydrates, 17.8% p... more Brewer’s spent grain (BSG) was chemically characterized obtaining 52.1% of carbohydrates, 17.8% protein, 5.9% lipids, 13.5% insoluble lignin and 24.3% of water-soluble extractives. This work has been focused on the study of polyphenol extraction of the extractive fraction by water ultrasound-assisted extraction. Selected extraction conditions were 47 °C and 21.7 mL water/gdry-BSG. The effect of solvent polarity on polyphenol extraction was studied by using ethanol aqueous mixtures, from 20% to 100% ethanol. The kinetics of polyphenol extraction have been fitted to the power law and the Weibull models yielding mean values of the root mean square deviation lower than 7.5%. Extracts have been characterized in terms of quantification of individual phenolic compounds by HPLC-DAD and protein and sugar soluble fractions (glucose, xylose, and arabinose). Polyphenol profile has been compared with other hydrolytic techniques, such as acid, basic and enzymatic hydrolysis, showing that ultrasou...
The Journal of Supercritical Fluids, 2018
To JCyL and ERDF for financial support of project BU055U16 and O.Benito-Román's Post-doctoral con... more To JCyL and ERDF for financial support of project BU055U16 and O.Benito-Román's Post-doctoral contract. To MINECO and ERDF for financial support of AEI's contract through project CTQ2015-64396-R. To MINECO for RM's pre-doctoral contract (BES-2013-063937). To ESF and Consejería de Educación of the JCyL for financial support of the technician Sarai del Rio Melgosa through the YEI program www.ubu.es/bioind EUROPEAN REGIONAL DEVELOPMENT FUND EUROPEAN SOCIAL FUND
2009 WRI World Congress on Computer Science and Information Engineering, 2009