Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials
- 주제(키워드) biocatalysis , catechol , esterase , poly(ethylene terephthalate) , upcycling
- 주제(기타) Chemistry, Multidisciplinary; Green & Sustainable Science & Technology
- 설명문(일반) [Kim, Hee Taek] Chungnam Natl Univ, Dept Food Sci & Technol, Daejeon 34134, South Korea; [Ryu, Mi Hee; Jung, Ye Jean; Lim, Sooyoung; Park, Jeyoung; Hwang, Sung Yeon; Joo, Jeong Chan; Oh, Dongyeop X.] Korea Res Inst Chem Technol, Res Ctr Biobased Chem, Daejeon 34114, South Korea; [Ryu, Mi Hee; Jung, Ye Jean; Lim, Sooyoung; Park, Jeyoung; Hwang, Sung Yeon; Joo, Jeong Chan; Oh, Dongyeop X.] Korea Res Inst Chem Technol, Res Ctr Biobased Chem, Ulsan 44429, South Korea; [Song, Hye Min; Park, Si Jae] Ewha Womans Univ, Dept Chem Engn & Mat Sci, Grad Program Syst Hlth Sci & Engn, Seoul 03760, South Korea; [Park, Jeyoung; Hwang, Sung Yeon; Oh, Dongyeop X.] Univ Sci & Technol UST, Adv Mat & Chem Engn, Daejeon 34113, South Korea; [Lee, Hoe-Suk; Yeon, Young Joo] Gangneung Wonju Natl Univ, Dept Biochem Engn, Gangneung Si 25457, Gangwon Do, South Korea; [Sung, Bong Hyun] Korea Res Inst Biosci & Biotechnol, Synthet Biol & Bioengn Res Ctr, Daejeon 34141, South Korea; [Bornscheuer, Uwe T.] Univ Greifswald, Inst Biochem, Dept Biotechnol & Enzyme Catalysis, D-17487 Greifswald, Germany; [Joo, Jeong Chan] Catholic Univ Korea, Dept Biotechnol, Bucheon Si 14662, Gyeonggi Do, South Korea
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- 발행기관 WILEY-V C H VERLAG GMBH
- 발행년도 2021
- URI http://www.dcollection.net/handler/ewha/000000183479
- 본문언어 영어
- Published As http://dx.doi.org/10.1002/cssc.202100909
초록/요약
Chemo-biological upcycling of poly(ethylene terephthalate) (PET) developed in this study includes the following key steps: chemo-enzymatic PET depolymerization, biotransformation of terephthalic acid (TPA) into catechol, and its application as a coating agent. Monomeric units were first produced through PET glycolysis into bis(2-hydroxyethyl) terephthalate (BHET), mono(2-hydroxyethyl) terephthalate (MHET), and PET oligomers, and enzymatic hydrolysis of these glycolyzed products using Bacillus subtilis esterase (Bs2Est). Bs2Est efficiently hydrolyzed glycolyzed products into TPA as a key enzyme for chemo-enzymatic depolymerization. Furthermore, catechol solution produced from TPA via a whole-cell biotransformation (Escherichia coli) could be directly used for functional coating on various substrates after simple cell removal from the culture medium without further purification and water-evaporation. This work demonstrates a proof-of-concept of a PET upcycling strategy via a combination of chemo-biological conversion of PET waste into multifunctional coating materials.
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