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Related to hydrolytic: Hydrolytic enzyme


Referring to or causing hydrolysis.
Farlex Partner Medical Dictionary © Farlex 2012


Referring to or causing hydrolysis.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(hi-drol'i-sis) [? + lysis, dissolution]
Any reaction in which water is one of the reactants, more specifically the combination of water with a salt to produce an acid and a base, one of which is more dissociated than the other. It involves a chemical decomposition in which a substance is split into simpler compounds by the addition or the taking up of the elements of water. This kind of reaction occurs extremely frequently in life processes. The conversion of starch to maltose, of fat to glycerol and fatty acid, and of protein to amino acids are examples of hydrolysis, as are other reactions involved in digestion. A simple example is the reaction in which the hydrolysis of ethyl acetate yields acetic acid and ethyl alcohol: C2H5C2H3O2 + H2O = CH3COOH + C2H5OH. Usually such reactions are reversible; the reversed reaction is called esterification, condensation, or dehydration synthesis.
See: assimilation; enzymehydrolytic (-dro-lit'ik), adjective
Medical Dictionary, © 2009 Farlex and Partners
References in periodicals archive ?
Hydrolytic Stability of PET Films in High-Temperature and High-Humidity Environment.
Comparing the hydrolytic activity of the different immobilization methods, acetone immobilization resulted in higher specific activities on all immobilized supports than alcohol immobilization.
The secretion of hydrolytic enzymes is a well-known factor that facilitates the invasion of pathogenic fungi (dermatophytes, yeast-like fungi, mold) into the tissues.
5 Mohsen N.M and Craig R.G, Hydrolytic stability of silanated zirconia-silica-urethane dimethacrylate composites.
Hydrolytic degradation tests were carried out as follows: The PU chips were prepared by mixing the poly(ether ester) polyols with N3390 as the ratio of functional groups ([NCO]:[OH] = 1:1), respectively.
The use of the longer hydrophobic chain in the polyols is expected to result in a new class of polyurethanes with a very flexible, less polar soft segment with better elasticity at low temperatures, better hydrolytic stability (due to the lower ester content), and lower moisture pick-up in high-humidity environments such as automotive.
Major determinants of virulence are dimorphic switching (Yang, 2003), secretion of hydrolytic enzymes such as proteinases and phospholipases.
4-ChlorobenzoylCoA dehalogenase is the best studied hydrolytic aromatic dehalogenase that catalyzes the conversion of 4-chlorobenzoyl-CoA to 4-hydroxybenzoyl-CoA with the release of a chloride ion (Figure 1(a)) [20].
Although all serum PON1 hydrolytic activity in QQ homozygotes is of the Q isoenzyme type and all in RR homozygotes is of the R isoenzyme type, no method has been described for determining the relative amounts of each isoenzyme in QR heterozygotes.
The virulence attributes of Candida includes hyphal switching, germination, surface recognition and production of extracellular hydrolytic enzyme.
Among the topics are the performance of composite cements in the repair of porcine thoracolumbar burst fracture in vitro, a magnetization method design of bulk multi-seeded high-temperature supercomputers, the microstructure and mechanical properties of a multi-model aluminum alloy with high strength, the mechanical evaluation of porous ceramics prepared by filtration with a framework structure of the polycrystalline fibers, and the effect of the gelation process on preparing aluminum titanate ultrafine powder by the hydrolytic sol-gel method.