Anthocyanin Extract from Blackberry Used as an Indicator of Hydrogen Potential
INTERNATIONAL JOURNAL OF FRUIT SCIENCE(2022)
Abstract
Anthocyanins are present in blackberries and can be used in the food industry as visual indicators that allow understanding the color variations related to the quality of a food. The purpose of this study was evaluated castilla blackberry (Rubus glaucus Benth) and wild blackberry (Rubus adenotrichos) were assessed considering the type of raw material; fresh and lyophilized (22 degrees C, 4.3 mbar, 7 days), pretreatment with microwaves (2450 MHz, 30s) and extraction method; conventional and assisted by ultrasound (300 W, 10 min) in the extraction of monomeric anthocyanins. The lyophilized raw material, the use of microwaves and ultrasound-assisted extraction extract more anthocyanins. The extracts changed color accordingly to pH, presenting colorations from red to green.
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Key words
Pigment,antioxidant,color,potential of hydrogen,extraction
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