B Proton NMR spectra of the final products obtained from the initial and optimized large-scale digests. BoGH5A(cat) was loaded at 0.2 mg/g TKP and CjBgl35A at 0.4 mg/g TKP Full size image The resulting XXXG was analyzed by 1H-NMR to provide an additional assessment of purity (Fig. ...
Draw the skeletal structure of the compound whose structure would be consistent with the following information: (a) molecular formula C_4H_10O whose proton NMR spectrum contains a downfield quartet a Draw the structure of the following: 2,2,5,5-Tetramethyl-3-...
20 Compounds useful as an activator component in the preparation of the ionic catalyst systems used in the process of this invention comprise a cation, which is preferably a Bronsted acid capable of donating a proton, and a compatible non-coordinating anion which anion is relatively large (bulky)...
chains were reduced in a controlled manner in two ways, by ultrasound and by acidic hydrolysis at different temperatures, samples with MWs between 130 kDa and 1300 kDa were obtained. DAs were determined by1H-NMR and MWs by gel permeation chromatography....
Figure 3. Anomeric region of the 1D 1H NMR spectra. Sucrose- and glucose-grown bacteria were incubated at room temperature overnight (RT) or directly frozen (DF). The chemical shifts of the anomeric proton signal of glucose in sucrose, in α-(1-4)-linked EPSs, free α-Glc, and α-(...
The 1H NMR features of 2 (Figure S7) were very similar to those of 1, but there was only one signal from an acetyl proton. In the 13C NMR spectrum of 2, there was one less carbonyl carbon compared with that of 1, and thus, compound 2 was thought to be a deacetylated version of...
This sequence contains the catalytic aspartate that acts as a proton acceptor, playing the role of the catalytic histidine found in plant peroxidases [23,24]. DyPs are produced in bacteria [25] as well as in filamentous fungi, with J. Fungi 2021, 7, 321 3 of 23 many examples in ...