What's the difference between maltose and ptyalin?

Maltose


Definition:

  • (n.) A crystalline sugar formed from starch by the action of distance of malt, and the amylolytic ferment of saliva and pancreatic juice. It resembles dextrose, but rotates the plane of polarized light further to the right and possesses a lower cupric oxide reducing power.

Example Sentences:

  • (1) One surprising finding is that the MAL1g-encoded maltose permease exhibits little sequence homology to the MAL1-encoded maltose permease though they appear to be functionally homologous.
  • (2) To gain further insight into the side chain requirement at position 177 that confers maltose recognition, further substitutions of isoleucine, leucine, phenylalanine, proline, and serine have been made via site-directed mutagenesis.
  • (3) Whereas fructokinase I was induced specifically by growth of the organism on sucrose, fructokinase II was derepressed during growth on ribose, galactose, maltose, and lactulose.
  • (4) After 2 hr of reperfusion, maltose absorption and weight gain of small intestine were determined.
  • (5) Maltose-positive strains were only demonstrable in birds with wounds inflicted by cats.
  • (6) In acting upon beta-D-glucosyl fluoride, maltose phosphorylase was found to use alpha-D-glucose as a cosubstrate but not beta-D-glucose or other close analogs (e.g., alpha-D-glucosyl fluoride) lacking an axial 1-OH group.
  • (7) One class II mutant carried a Tn10 insertion in or close to malT whereas in the remaining class II mutants the insertions were located at least 4 kb upstream of pulA in a region which may define a new regulatory locus of the maltose operon.
  • (8) The Cs cob.1 ORF was cloned into the vector pMALcr1 and over-expressed as a hybrid protein fused to maltose-binding protein (MBP).
  • (9) Monitoring of the intestinal allograft is possible with the combination of a function test (maltose absorption, glucose absorption, or any other function test) and repeated graft biopsy.
  • (10) Relocation of this segment, in effect, opens the D-glucose channel; maltose and cytochalasin B would thus inhibit transport by mechanisms which block this positional change.
  • (11) The action pattern on amylose, soluble starch, and glycogen showed that the products were maltose and maltotriose.
  • (12) The concentration of free glucose in the intestinal lumen during maltose absorption is not high enough to account for the rates of glucose transport observed.
  • (13) Mutants in malF and malK are defective in maltose transport at low concentrations as well as high concentrations, as previously shown, but are essentially normal in maltose taxis.
  • (14) Fibers were selected for this experiment, only if they responded to 1.0 M sucrose or 1.0 M maltose and they responded poorly to 0.1 M NaCl.
  • (15) Under our experimental conditions 20 to 30% of the administered maltose have been excreted and 7.5 to 23.4% have been oxidized within 8 hours.
  • (16) Renal excretion of sugar measures 25-35% of the maltose administered parenterally.
  • (17) Domestic and imported honey samples (115) contained 2.00% maltose and 0.71% isomaltose.
  • (18) SP-D can be selectively and efficiently eluted from isolated rat surfactant with glucose, maltose, and certain other saccharides.
  • (19) Studies were made on the ultraviolet difference-spectra of glucoamylase from Rhizopus niveus [EC 3.2.1.3] specifically produced by the substrate maltose and the inhibitors, glucose, glucono-1: 5-lactone (gluconolactone), methyl beta-D-glucoside, cellubiose, and cyclohexa-, and cyclohepta-amyloses.
  • (20) These results suggest that the structure of the reducing glucose is not important in the binding specificity of maltoporin or maltose-binding protein.

Ptyalin


Definition:

  • (n.) An unorganized amylolytic ferment, on enzyme, present in human mixed saliva and in the saliva of some animals.

Example Sentences:

Words possibly related to "ptyalin"