Extracto antioxidante a partir de macroalgas pardas y procedimiento de obtención

Se presenta un procedimiento de obtención de extractos antioxidantes a partir de macroalgas empleando extracción acuosa en continuo y asistida por ultrasonidos. El proceso se puede realizar sobre alga fresca o sobre alga seca, tras una resuspensión en agua. Se prepara una suspensión de alga en agua...

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Hauptverfasser: NUNEZ GARCIA, MARIA JOSE, SINEIRO TORRES, JORGE, SANCHEZ GUERRERO, MARIVEL
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creator NUNEZ GARCIA, MARIA JOSE
SINEIRO TORRES, JORGE
SANCHEZ GUERRERO, MARIVEL
description Se presenta un procedimiento de obtención de extractos antioxidantes a partir de macroalgas empleando extracción acuosa en continuo y asistida por ultrasonidos. El proceso se puede realizar sobre alga fresca o sobre alga seca, tras una resuspensión en agua. Se prepara una suspensión de alga en agua con una concentración de sólidos entre un 10 y un 30%. La mezcla se alimenta a un sistema de ruptura ultrasónica. El extracto es filtrado y liofilizado, obteniéndose concentraciones de polifenoles totales de 62.4 mg eq. de floroglucinol/ g de liofilizado con Bifurcaria bifurcata y 44 mg eq. de floroglucinol/ g de liofilizado con Ascophyllum nodosum. El extracto se puede emplear como ingrediente en formulaciones cosméticas y alimentarias. The invention relates to a method for obtaining antioxidant extracts from macroalgae using ultrasound-assisted continuous aqueous extraction. The process can be performed using fresh alga or dry alga, after resuspending same in water. A suspension of alga in water is prepared with a solid concentration of between 10 and 30%. The mixture is fed to an ultrasonic disruption system. The extract is filtered and lyophilized, obtaining total polyphenol concentrations of 62.4 mg eq. of phloroglucinol/g of lyophilisate with Bifurcaria bifurcata and 44 mg eq. of phloroglucinol/g of lyophilisate with Ascophyllum nodosum. The extract can be used as an ingredient in cosmetic and food formulations.
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subjects FOODS OR FOODSTUFFS
FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J
HUMAN NECESSITIES
HYGIENE
INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLICBEVERAGES
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT
THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
title Extracto antioxidante a partir de macroalgas pardas y procedimiento de obtención
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