Effect of novel drying techniques on the extraction of anthocyanins from bilberry press cake using supercritical carbon dioxide

Kerbstadt, Sebastian; Eliasson, L.; Mustafa, Arwa; Ahrné, Lı́lia

doi:10.1016/j.ifset.2015.02.002

Cited by 25 publications

(14 citation statements)

References 35 publications

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“…Many extraction procedures incorporate the application of an antioxidant as a stabilizer. Besides the conventional extraction techniques such as Soxhlet and ultrasound-assisted extractions, supercritical fluid and accelerated solvent extractions have been recently applied [105].…”

Section: Sources Of Phenolic Compounds Their Antioxidant and Antimentioning

confidence: 99%

Polyphenols: Extraction Methods, Antioxidative Action, Bioavailability and Anticarcinogenic Effects

et al. 2016

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Abstract:Being secondary plant metabolites, polyphenols represent a large and diverse group of substances abundantly present in a majority of fruits, herbs and vegetables. The current contribution is focused on their bioavailability, antioxidative and anticarcinogenic properties. An overview of extraction methods is also given, with supercritical fluid extraction highlighted as a promising eco-friendly alternative providing exceptional separation and protection from degradation of unstable polyphenols. The protective role of polyphenols against reactive oxygen and nitrogen species, UV light, plant pathogens, parasites and predators results in several beneficial biological activities giving rise to prophylaxis or possibly even to a cure for several prevailing human diseases, especially various cancer types. Omnipresence, specificity of the response and the absence of or low toxicity are crucial advantages of polyphenols as anticancer agents. The main problem represents their low bioavailability and rapid metabolism. One of the promising solutions lies in nanoformulation of polyphenols that prevents their degradation and thus enables significantly higher concentrations to reach the target cells. Another, more practiced, solution is the use of mixtures of various polyphenols that bring synergistic effects, resulting in lowering of the required therapeutic dose and in multitargeted action. The combination of polyphenols with existing drugs and therapies also shows promising results and significantly reduces their toxicity.

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Section: Sources Of Phenolic Compounds Their Antioxidant and Antimentioning

confidence: 99%

Polyphenols: Extraction Methods, Antioxidative Action, Bioavailability and Anticarcinogenic Effects

et al. 2016

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“…Some of the researchers studied the influence of carbon dioxide with 50% aqueous solution of ethanol [ 105 , 111 , 131 ] and even 60% aqueous solution of ethanol [ 147 ]. Del Pilar Garcia-Mendoza et al [ 131 ] as well as Kerbstadt et al [ 105 ] applied the acidified mixture of ethanol and water in the extraction of jucara ( Euterpe edulis ) and bilberry ( Vaccinium myrtillus ) press cake extraction, respectively. In the studies performed by Vatai et al [ 111 ], the optimal conditions which guaranteed the highest total phenolic content of 60.6 mg/g were 40 °C and 150 bar.…”

Section: Separation Of Phenolic Compounds With Supercritical Co mentioning

confidence: 99%

The Application of Supercritical Fluid Extraction in Phenolic Compounds Isolation from Natural Plant Materials

2018

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The separation of phenolic compounds by supercritical fluid extraction has been widely studied throughout the last two decades. This is evidenced by a number of publications and articles. Supercritical fluid extraction (SFE) has become thus the effective method of separating the mentioned group of compounds. On the other hand, SFE is a beneficial approach in plant waste materials utilization and reduction of environmental burdens caused by the wastes. The aim of the study is to gather and systematize available information on the phenolic compounds separation that have been reported so far as well as to evaluate whether there is one optimal supercritical fluid extraction method for the phenolic compounds.

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“…The fan of the oven created an air velocity of 6.1 m/s. The MWHA drying was performed according to the procedure and system described by Kerbstadt et al (2015). In brief, 1250 g bilberry press cake was loaded in the microwave cavity (TIVOX Automation AN, Tidaholm, Sweden) that was connected to an air heating unit with a fan (HONEYWELL INU control AB, Borås, Sweden) resulting in an air speed of 0.8 m/s in the middle of the cavity.…”

Section: Drying and Millingmentioning

confidence: 99%

Effect of drying and extrusion processing on physical and nutritional characteristics of bilberry press cake extrudates

Höglund

Eliasson

Oliveira

et al. 2018

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A B S T R A C TMild drying and extrusion processing of side streams from berry juice production can enable retention of valuable compounds in the food chain and reduce waste production. The aim of this study was to evaluate the applicability of using hot air (HA) and microwave assisted hot air (MWHA) drying combined with extrusion for conversion of bilberry press cake into value-added extruded food products. Bilberry press cake was dried at 40°C by HA and MWHA drying to a moisture content of 17 g/100 g. A twin screw extruder (average feed rate 72 g/ min, temperature profile 135-128-89-69°C) was used to extrude products containing organic wholegrain rye flour and 10% or 25% dried bilberry press cake powder. A consumer panel (n = 15) evaluated four extrudates on hedonic and Just-About-Right (JAR) scales, with a main focus on texture properties. The results indicate that different drying techniques implied a difference in processing time (40% reduction with MWHA drying). However, the retention of total phenolics and physical characteristics of extruded snacks containing bilberry powders were independent of drying techniques. In sum, powder of bilberry press cake can be incorporated in cereal based extruded snacks with enhanced phenolic content and potential for palatable sensory properties.

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Effect of novel drying techniques on the extraction of anthocyanins from bilberry press cake using supercritical carbon dioxide

Cited by 25 publications

References 35 publications

Polyphenols: Extraction Methods, Antioxidative Action, Bioavailability and Anticarcinogenic Effects

Polyphenols: Extraction Methods, Antioxidative Action, Bioavailability and Anticarcinogenic Effects

The Application of Supercritical Fluid Extraction in Phenolic Compounds Isolation from Natural Plant Materials

Effect of drying and extrusion processing on physical and nutritional characteristics of bilberry press cake extrudates

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