Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae

Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae

Microalgae represent an important source of bioactive compounds for food applications. In this study, multifunctional extracts from Haematococcus pluvialis (H. Pluvialis) microalga have been developed in order to be used as food additives. Total extracts were recovered by ultrasound assisted extract...

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Main Authors: Mario Chronis, Vasiliki Maria Christopoulou, Sofia Papadaki, Marina Stramarkou, Magdalini Krokida
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2021-07-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/11710
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spelling doaj-1b02e9989cb7414680c9da465c280ccf2021-07-01T20:25:14ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162021-07-018710.3303/CET2187026Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from MicroalgaeMario ChronisVasiliki Maria ChristopoulouSofia PapadakiMarina StramarkouMagdalini KrokidaMicroalgae represent an important source of bioactive compounds for food applications. In this study, multifunctional extracts from Haematococcus pluvialis (H. Pluvialis) microalga have been developed in order to be used as food additives. Total extracts were recovered by ultrasound assisted extraction using eco-friendly and food grade solvents. Five different ratios ranging from 1/100 to 1/5 g biomass/ mL solvent were studied in different ultrasound intensities in order to optimise the extraction of carotenoids, especially of astaxanthin. The produced extracts were analysed using High Pressure Liquid Chromatography (HPLC-DAD) and UV-Vis spectroscopy techniques. Acetone was the most efficient solvent for the extraction of carotenoids in all tested ratios. However, D-limonene and medium chain triglycerides extracts also gave a satisfying recovery of carotenoids. D-limonene was the preferred solvent since extracts with high amounts of carotenoids were recovered, permitting their direct use in food products and avoiding further condensation steps.https://www.cetjournal.it/index.php/cet/article/view/11710
collection DOAJ
language English
format Article
sources DOAJ
author Mario Chronis
Vasiliki Maria Christopoulou
Sofia Papadaki
Marina Stramarkou
Magdalini Krokida
spellingShingle Mario Chronis
Vasiliki Maria Christopoulou
Sofia Papadaki
Marina Stramarkou
Magdalini Krokida
Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae
Chemical Engineering Transactions
author_facet Mario Chronis
Vasiliki Maria Christopoulou
Sofia Papadaki
Marina Stramarkou
Magdalini Krokida
author_sort Mario Chronis
title Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae
title_short Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae
title_full Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae
title_fullStr Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae
title_full_unstemmed Optimization of Mild Extraction Methods for the Efficient Recovery of Astaxanthin, a Strong Food Antioxidant Carotenoid from Microalgae
title_sort optimization of mild extraction methods for the efficient recovery of astaxanthin, a strong food antioxidant carotenoid from microalgae
publisher AIDIC Servizi S.r.l.
series Chemical Engineering Transactions
issn 2283-9216
publishDate 2021-07-01
description Microalgae represent an important source of bioactive compounds for food applications. In this study, multifunctional extracts from Haematococcus pluvialis (H. Pluvialis) microalga have been developed in order to be used as food additives. Total extracts were recovered by ultrasound assisted extraction using eco-friendly and food grade solvents. Five different ratios ranging from 1/100 to 1/5 g biomass/ mL solvent were studied in different ultrasound intensities in order to optimise the extraction of carotenoids, especially of astaxanthin. The produced extracts were analysed using High Pressure Liquid Chromatography (HPLC-DAD) and UV-Vis spectroscopy techniques. Acetone was the most efficient solvent for the extraction of carotenoids in all tested ratios. However, D-limonene and medium chain triglycerides extracts also gave a satisfying recovery of carotenoids. D-limonene was the preferred solvent since extracts with high amounts of carotenoids were recovered, permitting their direct use in food products and avoiding further condensation steps.
url https://www.cetjournal.it/index.php/cet/article/view/11710
work_keys_str_mv AT mariochronis optimizationofmildextractionmethodsfortheefficientrecoveryofastaxanthinastrongfoodantioxidantcarotenoidfrommicroalgae
AT vasilikimariachristopoulou optimizationofmildextractionmethodsfortheefficientrecoveryofastaxanthinastrongfoodantioxidantcarotenoidfrommicroalgae
AT sofiapapadaki optimizationofmildextractionmethodsfortheefficientrecoveryofastaxanthinastrongfoodantioxidantcarotenoidfrommicroalgae
AT marinastramarkou optimizationofmildextractionmethodsfortheefficientrecoveryofastaxanthinastrongfoodantioxidantcarotenoidfrommicroalgae
AT magdalinikrokida optimizationofmildextractionmethodsfortheefficientrecoveryofastaxanthinastrongfoodantioxidantcarotenoidfrommicroalgae
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