ArticleMolecular biotechnology2019
Optimization of Baccatin III Production by Cross-Linked Enzyme Aggregate of Taxoid 10β-O-Acetyltransferase.
Article in Molecular biotechnology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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6 authors at 3 institutions in 2 countries.
Funding
Abstract
Taxoid 10β-O-acetyltransferase (DBAT) is the key enzyme to produce baccatin III, a key precursor in paclitaxel synthesis, by acetyl group transfer from acetyl-CoA to the C10 hydroxyl of 10-deacetylbaccatin III. In this study, the recombinant DBAT (rDBAT) was immobilized by cross-linked enzyme aggregates (CLEAs). To further optimize the enzyme recovery, single-factor experiment and response surface methodology were applied. 60% ammonium sulfate as precipitant, 0.05% glutaraldehyde as fixing agent, pH 7.0, 2 h as cross-linking time, 30 °C as cross-linking temperature were confirmed to be the optimum conditions to prepare the CLEAs-rDBAT in single-factor experiment. In addition, 62% for ammonium sulfate saturation, 0.15% for glutaraldehyde, and pH 6.75 were confirmed to be the optimum conditions with averagely 73.9% activity recovery in 3 replications, which was consistent with the prediction of response surface methodology. After cross-linking, the optimum temperature of CLEAs-rDBAT rose up to 70 °C and CLEAs-rDBAT could be recycled for three times.
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