Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Ovalbumin degradation

Standley SM, Kwon TJ, Murthy N et al (2004) Acid-degradable particles for protein-based vaccines Enhanced survival rate for tumor-challenged mice using ovalbumin model. Bioconjug Chem 15 1281-1288... [Pg.62]

Case studies. The CL immunochemical techniques was applied on genuine old samples in order to evaluate its performance in samples with a natural aging and degradation of target proteins. A sample collected from a wood painting by Nicolo Rondinelli (c. 1450 - c. 1510), an Italian painter of the Renaissance period, was analyzed. Experimental results showed the presence of ovalbumin in the upper-most painting layer, probably due to the use of an egg-based varnish (Fig. 2). [Pg.349]

Kimoto et al. [153] investigated the effect of proteinases from Gri-fola frondosa on gelling of egg white, and stated that no proteinase alone could prevent ovalbumin and egg white gelling, but a mixture of three proteinases prevented gelling. Proteinases deriving from Gri-fola frondosa would thus appear to degrade egg white protein and prevent its gelling. [Pg.152]

The spectrophotometric evidence reviewed above for the binding of a proportion of the phenolic hydroxyl groups of the tyrosine residues of native proteins is supported by work on the action of tyrosinase on proteins. Sizer (1946) found that this enzyme oxidizes the tyrosine residues in native trypsin, pepsin, chymotrypsin, casein, peptone, insulin, and hemoglobin. Native ovalbumin, human and bovine serum albumin, tobacco mosaic virus (nucleoprotein), human y- and bovine /3-globulins, and bovine fibrinogen are not susceptible to tyrosinase, but become so after tryptic digestion. It was shown (Sizer, 1947) that for the proteins which are oxidized by tyrosinase in the native state, the observed reaction does indeed occur with the intact proteins and does not require preliminary degradation to tyrosine peptides or free tyrosine. The kinetics of the oxidation of tyrosine by tyrosinase have been studied spectropho-tometrically (Mason, 1948 etc.). [Pg.351]

Chitosan microparficles provide a pofenfial system for oral vaccination. While oral vaccinations would cost less and be more comfortable than traditional injections, antigen degradation in the acidic stomach environment and unpredictable immune response at Peyer s patches render them inefficient. However, vaccines delivered in biodegradable microspheres can weather the harsh gastrointestinal environment and be phagocytized by Peyer s patch cells. Wan der Lubben et al. demonstrated that chitosan microspheres loaded with FITC labeled ovalbumin relayed their antigens to Peyer s patches. Stained intestinal epithelium showed high uptake of loaded microspheres, while pure administered FITC-ovalbumin indicated no uptake. [Pg.82]

The complete structures of the carbohydrate units of three other glycopeptides from ovalbumin (62—64) have been established, using a combination of sequential digestion with glycosidases. Smith degradation, selective acetolysis, and methylation analysis. ... [Pg.367]


See other pages where Ovalbumin degradation is mentioned: [Pg.667]    [Pg.667]    [Pg.344]    [Pg.153]    [Pg.16]    [Pg.232]    [Pg.810]    [Pg.26]    [Pg.328]    [Pg.219]    [Pg.541]    [Pg.177]    [Pg.1195]    [Pg.455]    [Pg.14]    [Pg.58]    [Pg.51]    [Pg.167]    [Pg.62]    [Pg.161]    [Pg.14]    [Pg.57]    [Pg.16]    [Pg.172]    [Pg.298]    [Pg.302]    [Pg.258]    [Pg.482]    [Pg.1267]    [Pg.225]    [Pg.237]    [Pg.276]    [Pg.203]    [Pg.342]    [Pg.112]    [Pg.254]    [Pg.59]    [Pg.391]    [Pg.159]    [Pg.317]    [Pg.239]    [Pg.9]    [Pg.423]    [Pg.767]    [Pg.112]   
See also in sourсe #XX -- [ Pg.14 , Pg.19 ]




SEARCH



Ovalbumin

© 2024 chempedia.info