RT Journal Article
T1 Red seaweeds as a source of nutrients and bioactive compounds: optimization of the extraction
A1 Carpena Rodríguez, María
A1 Caleja, Cristina
A1 Pereira, Eliana
A1 Pereira, Carla
A1 Ćirić, Ana
A1 Soković, Marina
A1 Soria Lopez, Anton
A1 Fraga Corral, María
A1 Simal Gándara, Jesús
A1 Ferreira, Isabel C. F. R.
A1 Barros, Lillian
A1 Prieto Lage, Miguel Ángel
K1 2417.07 Algología (Ficología)
K1 3206.09 Valor Nutritivo
K1 2302.90 Bioquímica de Alimentos
AB The present work aimed to determine the nutritional composition (ash, protein, fat, carbohydrate content and energy value), phenolic compounds, pigments and organic acids content of three typical red algae from the Northwest of Spain: Chondrus crispus, Mastocarpus stellatus, and Gigartina pistillata; as well as their antioxidant and antimicrobial activities. Furthermore, the present work compared two extraction techniques: conventional heat assisted extraction (HAE) and high pressure assisted extraction (HPAE) to maximize the yield and the concentration of target compounds. Different independent variables were considered for the response study. Time (t) and percentage of ethanol of the solvent (S) were chosen for both techniques and temperature (T) and pressure (P) were used for HAE and HPAE, respectively. The experiments were designed following a response surface methodology (RSM) approach. The obtained results showed a similar nutritional composition between algae samples: low-fat content and high content of proteins, carbohydrates and energy. All tested algae showed good antioxidant and antimicrobial properties. Finally, HEA demonstrated to be the most efficient extraction technique. This study confirms the potential of red algae to be part of the human diet as a source of non-animal protein, due to its nutritional content, phenolic profile, pigments concentration and bioactive properties, which proves that HAE is the optimum technique for the extraction maximization.
PB Chemosensors
SN 22279040
YR 2021
FD 2021-06-08
LK http://hdl.handle.net/11093/3009
UL http://hdl.handle.net/11093/3009
LA eng
NO Chemosensors, 9(6): 132 (2021)
NO Ministerio de Ciencia e Innovación | Ref. RYC-2017-22891
DS Investigo
RD 05-dic-2023