Lipase mediated functionalization of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) with ascorbic acid into an antioxidant active biomaterial
- Authors
- Bhatia, Shashi Kant; Wadhwa, Puneet; Hong, Ju Won; Hong, Yoon Gi; Jeon, Jong-Min; Lee, Eui Seok; Yang, Yung-Hun
- Issue Date
- 15-2월-2019
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Antioxidant; Biomaterial; Copolymer; Esterification; Polyhydroxyalkanoates
- Citation
- INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES, v.123, pp.117 - 123
- Indexed
- SCIE
SCOPUS
- Journal Title
- INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
- Volume
- 123
- Start Page
- 117
- End Page
- 123
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/67630
- DOI
- 10.1016/j.ijbiomac.2018.11.052
- ISSN
- 0141-8130
- Abstract
- Naturally produced polyhydroxyalkanoates (PHAs) biopolymers have limited medical applications due to their brittle and hydrophobic nature. In this study poly(3-hydroxybutyrate-co-3-hydroxyvalerate) P(3HB-co-3HV) co-polymer was produced using engineered Escherichia coli YJ101, and further functionalized with ascorbic acid using Candida antarctica lipase B mediated esterification. Copolymer P(3HB-co-3HV)-ascorbic acid showed lower degree of crystallinity (9.96%), higher thermal degradation temperature (294.97 degrees C) and hydrophilicity (68 degrees) as compared to P(3HB-co-3HV). Further, P(3HB-co-3HV)-ascorbic acid biomaterial showed 14% scavenging effect on 1,1-diphenyl-2-picryl-hydrazyl (DPPH), and 1.6 fold increase in biodegradability as compared to P(3HB-co-3HV). Improvement of PHAs polymer properties by adding functional groups could be a good approach to increase their biodegradability, economic value and important applications in the medical field. (C) 2018 Elsevier B.V. All rights reserved.
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