RT info:eu-repo/semantics/conferenceObject
T1 Intensification of Shrimp Shell Deproteinization Using Subcritical Water: Comparison of Continuous Ultrafast Reactors with Microwave Treatment
A1 de Souza Ribeiro, Mauricio Masaru
A1 Casas González, Andrea Patricia
A1 Rodríguez Rojo, Soraya
A1 Alonso Sánchez, Gloria Esther
AB A green strategy employing only water as solvent has been adopted to obtain proteinhydrolysates from residual shells of Litopenaeus vannamei generated as waste duringthe production of this species by aquaculture. The goal was to produce a proteinhydrolysate through the fractionation of waste biomass, eliminating the need forconventional alkaline treatments and avoiding the environmental and operationalissues associated with the use of strong bases. Subcritical water (sCW) refers to thewater in the temperature range of 100–374℃ where high pressure (up to 220 bar) isapplied to maintain water in the liquid state. At sCW conditions, the physico-chemicalproperties of water change significantly in comparison with water at ambientconditions; non-polar compounds can be extracted due to the changes ofelectrochemical properties, such as the decrease of dielectric constant and increaseof ionic product of water. The ionic product of water increased from 10-14 at ambienttemperature to 10-12 under subcritical conditions, increasing the concentrations of H+and H3O- acting as an acid-like catalyst for hydrolysis reactions. Therefore, sCW canhydrolyze some compounds in matrices like shrimp shell, whereproteins are released from the matrix and broken down into valuable peptides and freeamino acids. A crustacean exoskeleton is constituted mostly by a three-layered cuticleof chitin (15-30%) with trapped minerals (40-60%), proteins (15-25%) and minorcomponents like astaxanthin.
PB DECHEMA eV
SN 978-3-89746-248-9
YR 2025
FD 2025
LK https://uvadoc.uva.es/handle/10324/82903
UL https://uvadoc.uva.es/handle/10324/82903
LA eng
NO Producción Científica
DS UVaDOC
RD 20-feb-2026