Abstract
Glycerol diglycidyl ether (GDE) is a convenient and inexpensive bisepoxide cross-linker as demonstrated by the preparation of cross-linked enzyme aggregates (CLEAs) from two enzyme classes. The GDE CLEAs of lipase from Pseudomonas fluorescens (AK), lipase from Burkholderia cepacia (PS), and lipase B from Candida antarctica (CaL B) as well as of phenylalanine ammonia-lyase (PAL) from Petroselinum crispum demonstrated improved properties as compared with their glutaraldehyde (GA) cross-linked counterparts. Ultrasonication studies indicated that the GDE CLEAs of lipase PS and PAL were mechanically more stable than the GA CLEAs. In the kinetic resolution of rac-1-phenylethanol, the catalytic activity of the GDE-lipase CLEAs (U=69.6, 134.8, and 127.4 U g -1 for AK, CaL B, and PS prepared at 22 °C, respectively) surpassed that of the corresponding GA-lipase CLEAs (U=24.4, 131.0, and 119.2 U g-1 for AK, CaL B, and PS prepared at 22 °C, respectively). The GDE co-CLEAs from PAL and bovine serum albumin (BSA) could be recycled at least three times if used for the stereoselective ammonia addition in 6 M ammonia to (E)-3-(thiophen-2-yl)acrylic acid, whereas the recycling of the conventional GA-PAL CLEAs from this medium failed. The missing linker: Glycerol diglycidyl ether is applied as a cross-linker for cross-linked enzyme aggregates (CLEAs) of various enzymes such as lipases and phenylalanine ammonia lyases. The bisepoxide CLEAs prove to be efficient and robust biocatalysts surpassing the performance of the glutaraldehyde CLEAs.
| Original language | English |
|---|---|
| Pages (from-to) | 1463-1469 |
| Number of pages | 7 |
| Journal | ChemCatChem |
| Volume | 6 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 2014 |
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Keywords
- biotransformations
- cross-linked enzyme aggregate
- enzyme catalysis
- immobilization
- lipase
- phenylalanine ammonia-lyase
ASJC Scopus subject areas
- Inorganic Chemistry
- Organic Chemistry
- Physical and Theoretical Chemistry
- Catalysis
Cite this
Bisepoxide cross-linked enzyme aggregates - New immobilized biocatalysts for selective biotransformations. / Weiser, Diána; Varga, Andrea; Kovács, Klaudia; Nagy, Flóra; Szilágyi, A.; Vértessy, B.; Paizs, Csaba; Poppe, L.
In: ChemCatChem, Vol. 6, No. 5, 2014, p. 1463-1469.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Bisepoxide cross-linked enzyme aggregates - New immobilized biocatalysts for selective biotransformations
AU - Weiser, Diána
AU - Varga, Andrea
AU - Kovács, Klaudia
AU - Nagy, Flóra
AU - Szilágyi, A.
AU - Vértessy, B.
AU - Paizs, Csaba
AU - Poppe, L.
PY - 2014
Y1 - 2014
N2 - Glycerol diglycidyl ether (GDE) is a convenient and inexpensive bisepoxide cross-linker as demonstrated by the preparation of cross-linked enzyme aggregates (CLEAs) from two enzyme classes. The GDE CLEAs of lipase from Pseudomonas fluorescens (AK), lipase from Burkholderia cepacia (PS), and lipase B from Candida antarctica (CaL B) as well as of phenylalanine ammonia-lyase (PAL) from Petroselinum crispum demonstrated improved properties as compared with their glutaraldehyde (GA) cross-linked counterparts. Ultrasonication studies indicated that the GDE CLEAs of lipase PS and PAL were mechanically more stable than the GA CLEAs. In the kinetic resolution of rac-1-phenylethanol, the catalytic activity of the GDE-lipase CLEAs (U=69.6, 134.8, and 127.4 U g -1 for AK, CaL B, and PS prepared at 22 °C, respectively) surpassed that of the corresponding GA-lipase CLEAs (U=24.4, 131.0, and 119.2 U g-1 for AK, CaL B, and PS prepared at 22 °C, respectively). The GDE co-CLEAs from PAL and bovine serum albumin (BSA) could be recycled at least three times if used for the stereoselective ammonia addition in 6 M ammonia to (E)-3-(thiophen-2-yl)acrylic acid, whereas the recycling of the conventional GA-PAL CLEAs from this medium failed. The missing linker: Glycerol diglycidyl ether is applied as a cross-linker for cross-linked enzyme aggregates (CLEAs) of various enzymes such as lipases and phenylalanine ammonia lyases. The bisepoxide CLEAs prove to be efficient and robust biocatalysts surpassing the performance of the glutaraldehyde CLEAs.
AB - Glycerol diglycidyl ether (GDE) is a convenient and inexpensive bisepoxide cross-linker as demonstrated by the preparation of cross-linked enzyme aggregates (CLEAs) from two enzyme classes. The GDE CLEAs of lipase from Pseudomonas fluorescens (AK), lipase from Burkholderia cepacia (PS), and lipase B from Candida antarctica (CaL B) as well as of phenylalanine ammonia-lyase (PAL) from Petroselinum crispum demonstrated improved properties as compared with their glutaraldehyde (GA) cross-linked counterparts. Ultrasonication studies indicated that the GDE CLEAs of lipase PS and PAL were mechanically more stable than the GA CLEAs. In the kinetic resolution of rac-1-phenylethanol, the catalytic activity of the GDE-lipase CLEAs (U=69.6, 134.8, and 127.4 U g -1 for AK, CaL B, and PS prepared at 22 °C, respectively) surpassed that of the corresponding GA-lipase CLEAs (U=24.4, 131.0, and 119.2 U g-1 for AK, CaL B, and PS prepared at 22 °C, respectively). The GDE co-CLEAs from PAL and bovine serum albumin (BSA) could be recycled at least three times if used for the stereoselective ammonia addition in 6 M ammonia to (E)-3-(thiophen-2-yl)acrylic acid, whereas the recycling of the conventional GA-PAL CLEAs from this medium failed. The missing linker: Glycerol diglycidyl ether is applied as a cross-linker for cross-linked enzyme aggregates (CLEAs) of various enzymes such as lipases and phenylalanine ammonia lyases. The bisepoxide CLEAs prove to be efficient and robust biocatalysts surpassing the performance of the glutaraldehyde CLEAs.
KW - biotransformations
KW - cross-linked enzyme aggregate
KW - enzyme catalysis
KW - immobilization
KW - lipase
KW - phenylalanine ammonia-lyase
UR - http://www.scopus.com/inward/record.url?scp=84900340342&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84900340342&partnerID=8YFLogxK
U2 - 10.1002/cctc.201300806
DO - 10.1002/cctc.201300806
M3 - Article
VL - 6
SP - 1463
EP - 1469
JO - ChemCatChem
JF - ChemCatChem
SN - 1867-3880
IS - 5
ER -