Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/6767
Título
Adjustable Gel Texture of Recovered Crude Agar Induced by Pressurized Hot Water Treatment of Gelidium sesquipedale Industry Waste Stream: An RSM Analysis
Autor
Publicado en
Foods. 2022, V. 11, n. 14, 2081
Editorial
MDPI
Fecha de publicación
2022-07
ISSN
2304-8158
DOI
10.3390/foods11142081
Resumo
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.
Palabras clave
Agar
Gelidium sesquipedale waste stream
Food industry
Pressurized hot water extraction
RSM
Texture
Materia
Alimentos
Food
Ingeniería química
Chemical engineering
Versión del editor
Aparece en las colecciones