RT Journal Article
T1 Green extraction of carrageenans from mastocarpus stellatus
A1 Flórez Fernández, Noelia
A1 Falqué López, Elena
A1 Domínguez González, Herminia
A1 Torres Pérez, María Dolores
K1 2510.04 Botánica Marina
K1 3209 Farmacología
K1 3303 Ingeniería y Tecnología Químicas
K1 3390.01 Biotecnología de Microalgas
AB The recovery of biopolymers from natural resources using eco-friendly extraction technologies that enhance their mechanical properties has gained attention in recent years. In this context, this work deals with the isolation of hybrid carrageenans from Mastocarpus stellatus red seaweed using subcritical water extraction operating in a wide range of thermal conditions (70–190 °C). The extracted biopolymers were analyzed by means of either Fourier-Transform infrared, nuclear magnetic resonance, rheological or cell viability assays. In parallel, the fundamental chemical composition of the seaweed used as raw material, as well as the main phytochemical properties of the soluble liquid extracts, were also studied. Results indicated that thermal extraction conditions significantly affected the rheological behavior of the recovered hybrid carrageenans. The hybrid carrageenan extraction yields varied, with results between 10.2 and 30.2% being the highest values obtained at hydrothermal treatment of 130 °C. A wide palette of viscous features was identified for recovered hybrid carrageenans, with the strongest rheology properties observed at the same temperature. It should be remarked that the maximum inhibitory effect was also obtained at 130 °C for both the ovarian carcinoma cell line (A2780) (65%, IC50: 0.31 mg/mL) and lung carcinoma cell line (A549) (59%, IC50: 0.41 mg/mL).
PB Polymers
SN 20734360
YR 2022
FD 2022-01-29
LK http://hdl.handle.net/11093/3066
UL http://hdl.handle.net/11093/3066
LA eng
NO Polymers, 14(3): 554 (2022)
NO Ministerio de Ciencia, Innovación y Universidades | Ref. RTI2018-096376-B-I00
DS Investigo
RD 15-ene-2025