AI Article Synopsis
- - The study investigates a Vietnamese herb rich in anthocyanin, a natural colorant, and aims to improve the extraction method to reduce contamination.
- - It utilizes an aqueous two-phase system (ATPS) with ethanol and ammonium sulfate, achieving an 80% recovery of anthocyanin while eliminating 80% of nitrogen contaminants.
- - The purified extract shows a significantly longer shelf-life compared to the unpurified crude extract, indicating a more effective preservation of the pigment.
Article Abstract
(L.) (Acanthaceae) is a Vietnamese herb that is rich in anthocyanin, a natural colorant. However, the common extraction methods for this pigment often accompany with the presence of contaminated compounds. This study, therefore, focused on applying the aqueous two-phase system (ATPS), a green method for extracting and purifying anthocyanin in the leaf extract. The obtained results revealed that an ATPS composing from ethanol and ammonium sulfate with the concentrations of 32.5% and 25%, respectively, can recover 80% anthocyanin in leaf while eliminating 80% contaminated nitrogen compounds. Besides, the shelf-life of pigment in the purified extract was also elongated significantly in comparison with that in the crude extract.
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| http://dx.doi.org/10.1080/14786419.2021.1952203 | DOI Listing |
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