Biomaterial Database

Kinetics of hydrolysis of sucrose catalyzed by invertase immobilized on egg shells and on zeolites. 1994

J Sunitha, and P K Sai Prakash

Dept. of Chemistry, Osmania University, Hyderabad.

A simple, inexpensive and reliable method for immobilizing yeast invertase on egg shells and on zeolites was developed. The activity of the immobilized preparations when compared with that of native enzyme at varying pH, temperature and substrate concentrations, showed improved stability and sigmoidal kinetic behaviour. The immobilized enzyme could be easily removed from the reaction mixture at any specified time.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D002384	Catalysis	The facilitation of a chemical reaction by material (catalyst) that is not consumed by the reaction.	Catalyses
D004528	Egg Shell	A hard or leathery calciferous exterior covering of an egg.	Eggshell,Egg Shells,Eggshells,Shell, Egg,Shells, Egg
D004800	Enzymes, Immobilized	Enzymes which are immobilized on or in a variety of water-soluble or water-insoluble matrices with little or no loss of their catalytic activity. Since they can be reused continuously, immobilized enzymes have found wide application in the industrial, medical and research fields.	Immobilized Enzymes,Enzyme, Immobilized,Immobilized Enzyme
D006026	Glycoside Hydrolases	Any member of the class of enzymes that catalyze the cleavage of the glycosidic linkage of glycosides and the addition of water to the resulting molecules.	Endoglycosidase,Exoglycosidase,Glycohydrolase,Glycosidase,Glycosidases,Glycoside Hydrolase,Endoglycosidases,Exoglycosidases,Glycohydrolases,Hydrolase, Glycoside,Hydrolases, Glycoside
D006868	Hydrolysis	The process of cleaving a chemical compound by the addition of a molecule of water.
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D013395	Sucrose	A nonreducing disaccharide composed of GLUCOSE and FRUCTOSE linked via their anomeric carbons. It is obtained commercially from SUGARCANE, sugar beet (BETA VULGARIS), and other plants and used extensively as a food and a sweetener.	Saccharose
D017641	Zeolites	Zeolites. A group of crystalline, hydrated alkali-aluminum silicates. They occur naturally in sedimentary and volcanic rocks, altered basalts, ores, and clay deposits. Some 40 known zeolite minerals and a great number of synthetic zeolites are available commercially. (From Merck Index, 11th ed)	Zeolite
D043324	beta-Fructofuranosidase	A glycoside hydrolase found primarily in PLANTS and YEASTS. It has specificity for beta-D-fructofuranosides such as SUCROSE.	beta-D-Fructofuranosidase,Acid Invertase,Invertase,Saccharase,Sacrosidase,Sucraid,Sucrose 6-Phosphate Hydrolase,beta-Fructosidase,6-Phosphate Hydrolase, Sucrose,Hydrolase, Sucrose 6-Phosphate,Invertase, Acid,Sucrose 6 Phosphate Hydrolase,beta D Fructofuranosidase,beta Fructofuranosidase,beta Fructosidase