Chemistry is the experimental science by definition. We want to make observations to prove hypothesis. For this purpose, we perform experiments in the lab. , COA of Formula: C5H6O3, 108-55-4, Name is Dihydro-2H-pyran-2,6(3H)-dione, molecular formula is C5H6O3, belongs to Tetrahydropyrans compound. In a document, author is Panatdasirisuk, Weerapha, introduce the new discover.
Bromelain Immobilized onto Diamine-functionalized Electrospun Polyvinyl Chloride Fibers as a Durable Heterogeneous Catalyst
The best condition to produce smooth polyvinyl chloride (PVC, M.W. similar to 6.4×10(4) g/mol) fibers (572 +/- 171 nm) was 10 % w/v PVC in a mixture of tetrahydrofuran and dimethyl sulfoxide (4:1 by volume) with 5 % w/w Tween 20, 15 kV, 10 cm, and 3 ml/h. PVC fibers were subjected to plasma surface treatment to make them more hydrophilic. Diameters of the treated fibers were 549 +/- 99 nm. Next, the PVC fibers were treated with ethylene diamine (EDA) and p-phenylenediamine (PDA) to obtain PVC-EDA and PVC-PDA, respectively. Bromelain was immobilized onto PVC-EDA and PVC-PDA by an aid of 1 % w/v glutaraldehyde to receive PVC-EDA-bromelain and PVC-PDA-bromelain with good tensile strengths of similar to 19 and similar to 14 MPa, respectively. The activities of free and immobilized bromelain were assayed by casein as a substrate and a spectrophotometer at 275 nm. Bromelain loadings on PVC-EDA-bromelain and PVC-PDA-bromelain were 88.10 +/- 3.54 and 36.38 +/- 18.10 mg/g of fibers, respectively. The kinetic activities of bromelain, PVC-EDA-bromelain, and PVC-PDA-bromelain were 11.31 +/- 2.17, 0.31 +/- 0.03, and 2.15 +/- 1.34 min(-1), respectively. PVC-EDA-bromelain and PVC-PDA-bromelain could be reused at least 9 times with > 50 % relative activities and endured heat (50-90 degrees C) better than free bromelain did. Their relative activities were > 70 % after storage at 90 degrees C for 20 min.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 108-55-4. COA of Formula: C5H6O3.
Reference:
Tetrahydropyran – Wikipedia,
,Tetrahydropyran – an overview | ScienceDirect Topics