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ABSTRACT Adsorption of betaxanthin, a natural yellow color extracted from yellow beet, onto various macroporous resins was first evaluated to develop an efficient process for industrial production. Static screening experiments… Click to show full abstract
ABSTRACT Adsorption of betaxanthin, a natural yellow color extracted from yellow beet, onto various macroporous resins was first evaluated to develop an efficient process for industrial production. Static screening experiments show that LH-17, XAD-16, and XAD-4 resins give good adsorption/desorption performance. The adsorption isotherm data were fitted well to Langmuir isotherm, and the pseudo-first-order equation described kinetic data best. Dynamic column experiments further proved LH-17 resin is a potential industrial adsorbent for the separation of betaxanthin. After one round of operation, betaxanthin recovery ratio was 37.03%, and the purity was 2.18%, 72.4% higher than that of the yellow beet extracts.
Journal Title: Separation Science and Technology
Year Published: 2020
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