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<dc:title>Production of small peptides and low molecular weight amino acids by subcritical water from fish meal: Effect of pressurization agent</dc:title>
<dc:creator>Barea Gómez, Pedro</dc:creator>
<dc:creator>Melgosa Gómez, Rodrigo</dc:creator>
<dc:creator>Illera Gigante, Alba Ester</dc:creator>
<dc:creator>Alonso Riaño, Patricia</dc:creator>
<dc:creator>Díaz de Cerio Alonso de Mezquía, Elixabet</dc:creator>
<dc:creator>Benito Román, Oscar</dc:creator>
<dc:creator>Beltrán Calvo, Sagrario</dc:creator>
<dc:creator>Sanz Díez, Mª Teresa</dc:creator>
<dc:subject>Soluble fish meal protein</dc:subject>
<dc:subject>Hydrolysis</dc:subject>
<dc:subject>Subcritical water</dc:subject>
<dc:subject>Carbon dioxide</dc:subject>
<dc:description>The hydrolysis of the water-soluble protein (WSP) fraction from tuna fish meal was evaluated by subcritical water (subW) by using N2 and CO2 as different pressurization agents in the temperature range from 140 to 180 °C. For both gases, the amino group release increased by increasing working temperature while the Lowry response decreased due to production of smaller-size peptides and free amino acids.&#xd;
&#xd;
The free amino acid content was higher with CO2 than with N2. At 180 °C, 344 ± 5 and 275 ± 3 mg of free amino acids per g of WSP were released, respectively; although, in both systems the smallest molecular weight amino acids, glycine and alanine, were preferentially released. The free amino acids content obtained by enzymatic hydrolysis with commercial proteases Alcalase and Novozym was much lower with the highest hydrolysis yield determined for histidine. These results have been supported by size exclusion chromatography analysis.</dc:description>
<dc:date>2023-06-15T12:29:10Z</dc:date>
<dc:date>2023-06-15T12:29:10Z</dc:date>
<dc:date>2023-08</dc:date>
<dc:type>info:eu-repo/semantics/article</dc:type>
<dc:identifier>0308-8146</dc:identifier>
<dc:identifier>http://hdl.handle.net/10259/7703</dc:identifier>
<dc:identifier>10.1016/j.foodchem.2023.135925</dc:identifier>
<dc:language>eng</dc:language>
<dc:relation>Food Chemistry. 2023, V. 418, 135925</dc:relation>
<dc:relation>https://doi.org/10.1016/j.foodchem.2023.135925</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-116716RJ-I00/ES/TECNOLOGIAS DE FLUIDOS PRESURIZADOS PARA LA VALORIZACION DE SUBPRODUCTOS DE LA INDUSTRIA AGROALIMENTARIA: RECUPERACION DE PECTINA Y OTROS COMPUESTOS BIOACTIVOS DE ALTO VALOR/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/TED2021-129311B-I00/ES/Tecnologías verdes basadas en el empleo de fluidos presurizados para valorizar biomasa lignocelulósica mediante la producción de furfural/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/PDC2022-133443-I00/ES/Diseño de un prototipo para la extracción de bioproductos con agua subcrítica/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/Junta de Castilla y León//BU050P20//Valorización de la fracción proteica de subproductos de la industria agroalimentaria de Castilla y León mediante tecnologías de fluidos presurizados/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/MIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/BG20%2F00182/ES/</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-104950RB-I00/ES/VALORIZACION DE SUBPRODUCTOS MARINOS MEDIANTE TECNOLOGIAS DE FLUIDOS SUB- Y SUPERCRITICOS PARA LA OBTENCION DE BIOCOMPUESTOS VALIOSOS/</dc:relation>
<dc:rights>http://creativecommons.org/licenses/by-nc-nd/4.0/</dc:rights>
<dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
<dc:rights>Attribution-NonCommercial-NoDerivatives 4.0 Internacional</dc:rights>
<dc:publisher>Elsevier</dc:publisher>
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