What's the difference between glycerine and glycerol?
Glycerine
Definition:
(n.) An oily, viscous liquid, C3H5(OH)3, colorless and odorless, and with a hot, sweetish taste, existing in the natural fats and oils as the base, combined with various acids, as oleic, margaric, stearic, and palmitic. It is a triatomic alcohol, and hence is also called glycerol. See Note under Gelatin.
Example Sentences:
(1) At initial concentrations of 0.1 and 1.0 M, glycerin and propylene glycol increase significantly the intestinal absorption rate of theophylline from the small intestine of anesthetized rats.
(2) In the composition of the water-methanol phase glycerin, serine, ethanolamine, phosphoryl-serine, phosphoryl-ethanolamine, glyceryl-phosphoryl-ethanolamine and glyceryl-phosphoryl-serine were detected by the method of thin-layer paper chromatography.
(3) Various routes of immunotherapy (injection, intranasal, oral) using lyophilized, aqueous, glycerinated, and modified allergenic extracts have all produced blocking antibodies and symptomatic improvement.
(4) In contrast, 1% digitonin and lower concentrations of the above agents, as well as sucrose or glycerine caused selective diffusion of catalase from a limited population of peroxisomes.
(5) Ca sensitivity and energy dependence in the contractile proteins of the glycerinated taenia coli of guinea pig were studied.
(6) At the same time, the absence of any effect of the compounds studied on the maximal rate of isotonic shortening and on the tension of glycerinized fibres and ATPPase of native and desenitized actomyosine indicates that the contractile mechanism is not involved in the effect described.
(7) The second formulation was a barrier-type product consisting of milk protein solubilized with lauryl sulfate, a surface active detergent and 4.8% glycerin.
(8) Aqueous glycerin solutions produced wall shear rate waveforms of the same magnitude and shape as the porcine blood.
(9) The fluorescence polarization from rhodamine labels specifically attached to the fast-reacting thiol of the myosin cross-bridge in glycerinated muscle fibers has been measured to determine the angular distribution of the cross-bridges in different physiological states of the fibers as a function of temperature.
(10) A significant fraction of the KCl-inextractable Mg bound to glycerinated cells fails to exchange with (28)Mg even after long equilibration.
(11) Treat the eye as follows: 1) 50% pyridine for at least 16 hr, 2) distilled water 3--4 hr, 3) 20% H2O2 until the eye is a light brown, 4) 95% ethanol overnight, 5) 1.5% AgNO3 for 2--6 days at 37 C, 6) in water, remove the vitreous, then direct 0.25% pyrogallic acid in 1.25% formalin against the retina for 2--5 secs until the optic fibers are reduced to a coffee-copper color (1--4 minutes), 7) dissect the retina and mount flat on a glass slide, 8) cover with glycerin, apply a coverslip, and fix in place with nail polish.
(12) In vascular smooth muscle that does not contract spontaneously, similar deposits of strontium were only seen if the muscle was depolarized during or glycerinated before exposure to the strontium-containing solution.
(13) Larvae for morphological study were collected by pepsin digestion, fixed in glacial acetic acid, and cleared in glycerin.
(14) These rate constants are similar to those that may occur for undistorted cross-bridges within glycerinated rabbit psoas fibers (Bowater, R., Webb, M. R., and Ferenczi, M. A.
(15) Data from chemically skinned and glycerinated single fibers were not significantly different from intact fibers, indicating that the membrane structure has little effect upon the diffraction phenomenon in muscle.
(16) Gly 90, a glycerine mutant defective by glycerokinase, obtained under the action of ethylmethanesulphonate, displayed a distinct difference from the initial virulent strains of salmonella by decreased invasive properties and the absence of any capacity to multiplication in the epithelial cells.
(17) Such molecules would be capable of promoting interactions between thick filaments which contain them, providing a means of accounting for the pH dependent stiffness observed in glycerinated preparations of molluscan catch muscles.
(18) These results support the hypothesis that contraction and relaxation in glycerinated rat uterine muscle are regulated primarily by phosphorylation and dephosphorylation of LC20.
(19) Spinal nerve block by intrathecal phenol-glycerine infusion is commonly employed for relief of severe pain in terminal carcinomatosis and, frequently, a dramatic regional anesthetic effect is achieved.
(20) All additives tested (ethyl alcohol, glycerine, chloral hydrate, ethylene and propylene glycol, and citric, malonic and maleic acids) in varying degrees limited the conversion of hematein to insoluble compounds.
Glycerol
Definition:
(n.) Same as Glycerin.
Example Sentences:
(1) Estimations of the degree of incorporation of 14C from the radioactive labeled carbohydrate into the glycerol and fatty acid moieties were carried out.
(2) Similar results were obtained with 1-oleoyl 2-acetylglycerol (OAG), whereas 1, 2 diolein, 1-oleoyl glycerol, or 4 alpha-phorbol 12, 13-didecanoate had no effect.
(3) Changes in renal renin levels after the administration of glycerol were not significant, although lower renal renin values were consistently found in rabbits with more severe impairment of renal function.
(4) When labelled long-chain fatty acids or glycerol were infused into the lactating goat, there was extensive transfer of radioactivity into milk in spite of the absence of net uptake of substrate by the mammary gland.
(5) sn-Glycerol 3-phosphate was found to decrease the quasi-stationary concentration of Fru 2,6-P2.
(6) Rhesus monkey BAT mitochondria (BATM) possess an uncoupling protein that is characteristic of BAT as evidenced by the binding of [3H]GDP, the inhibition by GDP of the high Cl- permeability or rapid alpha-glycerol-3-phosphate oxidation.
(7) Glucose formation from a range of substrates, with the exception of glycerol, was increased by an increase in extracellular Ca(2+) concentration.
(8) A search in protein data banks revealed that IclR has a score of similarity of 43.7% with GylR, a transcriptional regulator of the glycerol operon of Streptomyces coelicolor.
(9) We conclude, therefore, that a direct deacylation of the acyl groups at the primary alcohol level of the glycerol probably does not occur, but postulate that transacylations may occur to account for the removal of the acyl moiety.
(10) The dynamic properties of cross-bridge movement were investigated in glycerol-treated muscle fibers under various conditions by analyzing tension responses to two types of length change.
(11) A 4.1-kb EcoRI fragment which includes the gene (gldA) encoding a glycerol dehydrogenase (G1DH; EC 1.1.1.6; glycerol:NAD oxidoreductase) from Bacillus stearothermophilus var.
(12) Methods are described for the analysis of glucose, lactate, pyruvate, alanine, glycerol, 3-hydroxybutyrate and acetoacetate in perchloric acid extracts of human blood, using the Cobas Bio centrifugal analyser fitted with a fluorimetric attachment.
(13) Glycerol permeation and thus its osmotic action may be less in the soleus than in other muscles.
(14) The activity of succinic dehydrogenase, a mitochondrial enzyme, was decreased by the deficiency, but the activities of fumarase, sn-glycerol-3-phosphate dehydrogenase, alcohol dehydrogenase, sn-glycerol-3-phosphate oxidase and fatty acid synthetase were unaffected.
(15) This oxidation is sensitive to catalase and glutathione plus glutathione peroxidase, suggesting a requirement for H2O2 in the overall pathway of glycerol oxidation.
(16) The defect is due to a single mutation in glycerol 3-phosphate acyltransferase (EC 2.3.1.15).
(17) Insertion of the fusion-generating phage Mud1 (Ap, lacZ) yielded two similar isolates, DC511 and DC512, which were unable to grow aerobically on acetate or alpha-ketoglutarate but which could use succinate, malate, fumarate, glycerol, and various sugars.
(18) Glycerol gradient centrifugation partially dissociated the complex to yield two peaks of exonuclease III activity, one at 7.7 S together with the DNA polymerase, and one at 4.0 S without polymerase activity.
(19) The native mass of factor a was estimated to be 240-260 kDa by gel filtration, but its sedimentation rate in a glycerol gradient was similar to that of a much smaller globular protein, suggesting an extended conformation.
(20) The radiochemical testings further indicate that the mutation has inactivated an inducible glycerol kinase, while a low residual activity may be due to a second, basal and non-inducible glycerol kinase, in accordance with a proposal by North (1973, 1974) that Neurospora has two glycerol kinases with these properties.