Specific Inhibition of Insoluble Glucan Synthase (GTF-I) by Maillard Reaction Products from Casein and Albumins

Autor: Kenji Koga, Hayashida Osamu, Yasuhiro Hasegawa, Yamaji Nakano, Shunsuke Kobayashi
Rok vydání: 1990
Předmět:
Zdroj: Agricultural and Biological Chemistry. 54:1417-1424
ISSN: 0002-1369
DOI: 10.1080/00021369.1990.10870148
Popis: The Maillard reaction was done with several proteins and aldoses (glucose, glyceraldehyde, and glycolaldehyde) under both neutral and alkaline conditions. Maillard reaction products (MRP) from αs-casein and albumins (ovalbumin, bovine serum albumin, human serum albumin, and α-lactalbumin) inhibited adhesive insoluble glucan synthesis by glueosyltransferase (GTF) of Streptococcus mutans. The magnitude of the inhibitory activity in MRP from αs-casein and the three aldoses correlated with the reactivity of the aldoses with proteins. The MRP from αs-casein and albumins inhibited GTF-I and did not affect GTF-S, while their original proteins stimulated GTF-I specifically. These results suggest that the inhibitory activity of these MRP may be related to the GTF-I stimulating property of their original proteins.
Databáze: OpenAIRE