ISOLATION and CHARACTERIZATION OF PEPTIDES PRODUCED BY THE MILD ACID HYDROLYSIS OF BOVINE SUBMAXILLARY MUCIN*

2009 ◽  
Vol 2 (1-4) ◽  
pp. 27-36 ◽  
Author(s):  
Fred Downs ◽  
Ward Pigman
Keyword(s):  
Acid Hydrolysis ◽  
Mild Acid Hydrolysis ◽  
Isolation And Characterization ◽  
Bovine Submaxillary Mucin ◽  
Hydrolysis Of ◽  
Mild Acid

Sequential Enzymatic and Mild-Acid Hydrolysis of By-Product of Carrageenan Process from Kappaphycus alvarezii

2019 ◽  
Vol 12 (2) ◽  
pp. 419-432 ◽  
Author(s):  
Fernando Roberto Paz-Cedeno ◽  
Eddyn Gabriel Solórzano-Chávez ◽  
Levi Ezequiel de Oliveira ◽  
Valéria Cress Gelli ◽  
Rubens Monti ◽  
...  
Keyword(s):  
Acid Hydrolysis ◽  
Kappaphycus Alvarezii ◽  
Mild Acid Hydrolysis ◽  
Hydrolysis Of ◽  
Mild Acid

Base-catalyzed Degradations of Carbohydrates. X. Degradation by β-Elimination of Methylated Degraded Leiocarpan A

1975 ◽  
Vol 53 (14) ◽  
pp. 2189-2193 ◽  
Author(s):  
Gerald O. Aspinall ◽  
Atmaram S. Chaudhari
Keyword(s):  
Acetic Anhydride ◽  
Acid Hydrolysis ◽  
Mild Acid Hydrolysis ◽  
Anomeric Configuration ◽  
End Groups ◽  
Mild Acid

Treatment of methylated degraded leiocarpan A with l,5-diazabicyclo[5.4.0]undec-5-ene and acetic anhydride, followed by mild acid hydrolysis and de-O-acetylation, furnishes 3,4,6-tri-O-methyl-D-mannose and 3,4-di-O-methyl-6-O-(2,3,4-tri-O-methyl-β-D-xylopyranosyl)-D-mannose. The characterization of the methylated disaccharide provides evidence for the site of attachment and anomeric configuration of the D-xylopyranose end groups in the parent polysaccharide.

scholarly journals IMMUNOCHEMICAL STUDIES ON BLOOD GROUPS

1971 ◽  
Vol 133 (1) ◽  
pp. 39-52 ◽  
Author(s):  
Ten Feizi ◽  
Elvin A. Kabat ◽  
Giuseppe Vicari ◽  
Byron Anderson ◽  
W. Laurence Marsh
Keyword(s):  
Acid Hydrolysis ◽  
Blood Group ◽  
Ovarian Cyst ◽  
Periodate Oxidation ◽  
Human Saliva ◽  
Mild Acid Hydrolysis ◽  
Group B ◽  
Hydrolysis Of ◽  
Substantial Heterogeneity ◽  
Mild Acid

A partially purified blood group-like substance obtained from milk showed I activity with 2 of 21 anti-I sera. With these antisera, certain human ovarian cyst substances considered to be precursors of the A, B, H, Lea, and Leb substances also showed I activity comparable to the milk material. Strong I activity could be produced by one-stage periodate oxidation and Smith degradation of human ovarian cyst A and B substances, or of hog mucin A + H substance, or by mild acid hydrolysis of human saliva or ovarian cyst blood group B substance. The two sera indicate that I specificity appears at intermediate stages in the biosynthesis of the A, B, H, Lea, and Lea substances. Anti-I sera differ strikingly in their specificities, indicating substantial heterogeneity of the I determinants.

The Synthesis of Trisubstituted Enol Ethers and of Methyl Ketones from Ketones

1973 ◽  
Vol 51 (6) ◽  
pp. 981-983 ◽  
Author(s):  
Gilles Caron ◽  
Jean Lessard
Keyword(s):  
Acid Hydrolysis ◽  
Hydroxy Acid ◽  
Reliable Method ◽  
Acid Salt ◽  
Methyl Ketones ◽  
Enol Ether ◽  
Mild Acid Hydrolysis ◽  
Enol Ethers ◽  
Hydrolysis Of ◽  
Mild Acid

A reliable method for the synthesis of trisubstituted enol ethers (and of the corresponding methyl ketones) is described involving the condensation of the α-lithiated 2-methoxypropionic acid salt with a ketone to give a β-hydroxy acid, the cyclization to a β-lactone which is then decarboxylated (and mild acid hydrolysis of the enol ether).

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