Antioxidant property of beta-cryptoxanthin produced by Kocuria marina DAGII

Beta-cryptoxanthin (beta-CRX), a pro vitamin A carotenoid was extracted from Kocuria marina DAGII, a gram positive bacteria isolated from soil. To determine the antioxidant activity of b-CRX against free radicals, DPPH, ABTS, H2O2 and TAC assay were performed. The scavenging results showed antioxidant activity of beta-cryptoxanthin. The scavenging activity increased with increased pigment concentration. The IC50 value of beta-cryptoxanthin for DPPH, ABTS and H2O2 were found to be 32.51 +/- 1.15 mg/ml, 41.91 +/- 0. 33 mg/ml and 38.30 +/- 1.13 mg/ml respectively. The TAC assay value of beta cryptoxanthin was 872.010 1 +/- 1.84 mg BHT/mg of sample. This showed that beta-cryptoxanthin extracted from K.marina DAGII cells can serve as economical pigment with antioxidant property. Copyright (C) 2022 Elsevier Ltd. All rights reserved. Selection and peer-review under responsibility of the scientific committee of the International Chemical Engineering Conference 2021 (100 Glorious Years of Chemical Engineering & Technology).