2026-05-15T14:48:42Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/67672022-07-18T06:58:22Zcom_10259_4244com_10259_5086com_10259_2604col_10259_4245

2022-07-15T12:24:17Z urn:hdl:10259/6767 Adjustable Gel Texture of Recovered Crude Agar Induced by Pressurized Hot Water Treatment of Gelidium sesquipedale Industry Waste Stream: An RSM Analysis Diop, C.I.K. Beltrán Calvo, Sagrario Jaime Moreno, Isabel Sanz Díez, Mª Teresa Agar Gelidium sesquipedale waste stream Food industry Pressurized hot water extraction RSM Texture A significant amount of bioactive compound-rich solid waste is released during the industrial phycocolloid-centric extraction of Gelidium sesquipedale. The impact of mild pressurized hot water extraction on repurposing this waste for the recovery of agar with an adjustable gel texture is investigated. A two-factor interaction response surface model assessed the influences of the operating temperatures (80 to 130 °C), times (45 and 150 min), pressures (1 to 70 bar), and algae concentrations (3 to 10% (w:v)). At a temperature of 100 °C, a pressure of 10.13 bar, a recovery time of 45 min, and a 10% algae concentration, the working parameters were considered ideal (w:v). Agar with a hardness of 431.6 g, an adhesiveness of −13.14 g.s−1, a springiness of 0.94, a cohesiveness of 0.63, and a gumminess of 274.46 g was produced under these conditions. A combined desirability of 0.78 was obtained for the exposed technology that retrieved gels with a minimum agar yield of 10% and thermal hysteresis between 39 ± 1 and 52 ± 0.5 °C. The fitted design can provide a high techno-commercial value to the agri-food industrial waste stream. 2022-07-15T12:24:17Z 2022-07-15T12:24:17Z 2022-07 info:eu-repo/semantics/article 2304-8158 http://hdl.handle.net/10259/6767 10.3390/foods11142081 2304-8158 eng Foods. 2022, V. 11, n. 14, 2081 https://doi.org/10.3390/foods11142081 info:eu-repo/grantAgreement/EC/H2020/898804/EU/Sustainable Valorization Of The Algae Industry Waste-Stream Within An Advanced Clean Technologies-Based Integrated Biorefinery Concept http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Atribución 4.0 Internacional MDPI