What's the difference between vanillic and vanillin?

Vanillic


Definition:

  • (a.) Pertaining to, or derived from, vanilla or vanillin; resembling vanillin; specifically, designating an alcohol and an acid respectively, vanillin being the intermediate aldehyde.

Example Sentences:

  • (1) It demethylates veratric acid to a mixture of vanillic and isovanillic acids.
  • (2) Investigations of renal functionas well as catecholamine and vanil-mandelic acid urinary excretion were normal.
  • (3) In contrary to hydroxycinnamic acid derivatives the contents of hydroxybenzoic acid derivatives (p-hydroxybenzoic, vanillic, salicylic and gentisic acid) mostly were small.
  • (4) Furthermore hydroxybenzoic acid derivatives (salicylic, gentisic and vanillic acid) occur in cornsalad, sweet fennel, parsley and spinach in small concentrations; cornsalad shows p-hydroxybenzoic acid (ca.
  • (5) The four Aspergillus species contained vanillate-inducible protocatechuate-3,4-dioxygenase and catechol-1,2-dioxygenase activities.
  • (6) For the following constituents an increased urinary excretion is observed: 4-hydroxyphenylpyruvic acid, 4-hydroxyphenyllactic acid, 4-hydroxyphenylacetic acid, 4-hydroxybenzoic acid, 4-hydroxyhippuric acid, vanillic acid, homovanillic acid, 4-hydroxymandelic acid, 4-hydroxy-3-methoxyphenylpropionic acid and p-cresol.
  • (7) Protocatechuate, gentisate, and hydroquinone were not affected by vanillate-metabolizing mycelial pellets that readily degraded methoxyhydroquinone.
  • (8) Resting-cell suspensions of Serratia marcescens were able to convert, quantitatively, 0.3% vanillin to vanillic acid.
  • (9) The identification of VA in the human brain suggests that the vanillic acid of the cerebrospinal fluid originates, at least in part, from the catecholamines in the brain.
  • (10) 3-methoxy-4-hydroxyphenylbenzoic (vanillic) acid was previously shown to be one of the endogenous metabolites of adrenaline and noradrenaline.
  • (11) When grown on vanillate, the bacteria contained a NAD+ -dependent dehydrogenase converting GGE to a 355 nm absorbing product.
  • (12) Vanillate esters with multifunctional groups the react with metal oxides to give chain-extended molecules have been synthesized.
  • (13) The authors discuss other possible origins of vanillic acid besides the noradrenaline catabolism of dopamine.
  • (14) It was determined that the ZnO-containing cements--which include zinc phosphate, zinc polycarboxylate, zinc oxide eugenol, and zinc hexyl vanillate--each caused C3 conversion, indicative of complement activation.
  • (15) Candida albicans utilized 14C (ring) labelled dehydropolymer of coniferyl alcohol, 14C-teakwood lignin and indulin and released p-hydroxybenzoic acid, vanillic acid, 3,4-dihydroxybenzoic acid and catechol as by products from lignin.
  • (16) chinensis completely metabolized vanillic acid while good transformation was obtained with Absidia spinosa, Cunninghamella bainieri, Mucor bacilliformis, Mucor plumbeus, Rhizopus arrhizus, Rhizopus stolonifer, Syncephalastrum racemosum and Zygorhynchus moelleri.
  • (17) Salicyclic and gentisic acid were found in traces up to 2 mg per kg, occassionally vanillic acid, syringic acid or isoferulic acid.
  • (18) Chicks fed 0.5% vanillin, 0.5% vanillic acid, 0.5% ferulic acid, or 0.5% p-coumaric acid had comparable cytochromes level and activity compared with chicks fed no phenolics.
  • (19) Eight experiments were conducted to determine effects of a phenolic polymer (Kraft wood lignin, Indulin), phenolic glycosides (cane molasses and wood molasses), and phenolic monomers (vanillin, vanillic acid, ferulic acid, and p-coumaric acid) on liver cytochromes P-450, cytochrome b5, and NADPH cytochrome c reductase in chicks and rats.
  • (20) Taloximine shortened the duration of the loss of righting reflex in mice due to hexobarbitone more effectively than bemegride, nikethamide or vanillic acid diethylamide.6.

Vanillin


Definition:

  • (n.) A white crystalline aldehyde having a burning taste and characteristic odor of vanilla. It is extracted from vanilla pods, and is also obtained by the decomposition of coniferin, and by the oxidation of eugenol.

Example Sentences:

  • (1) Because vanillin is a food additive on the GRAS (generally regarded as safe) list, and because it has little or no adverse effects at high dosages in animals, vanillin is a candidate for further evaluation as an agent for the treatment of sickle cell disease.
  • (2) Among 7 derivatives of omicron-vanillin, 2-hydroxy-3-ethoxy-benzaldehyde, omicron-hydroxybenzaldehyde and m-methoxybenzaldehyde showed an enhancing effect on MNNG-induced mutagenesis.
  • (3) Vanillin showed no change in the absence of activity of H2O2 to induce mutations.
  • (4) The metabolism of vanillin, isovanillin and the corresponding alcohols and acids in rats was investigated using t.l.c., g.l.c.
  • (5) The procedure has been adapted to the analysis of other products including domestic vanilla extracts and imitation vanilla flavorings for vanillin, ethyl vanillin, 4-hydroxybenzaldehyde and piperonal.
  • (6) X-ray-induced breakage-type and exchange-type chromosome aberrations were suppressed by the vanillin treatment in the G1 phase of the cell cycle and a greater decrease in the number of X-ray-induced chromosome aberrations during G1 holding was observed in the presence of vanillin.
  • (7) The relative incidence of bacteria utilizing vanillin, syringic acid or protocatechuic acid as the only carbon sources increased in the enriched medium.
  • (8) Simple phenolic compounds such as phenol, 3-methoxycatechol, catechol and vanillin were identified as the precursors of the genotoxic substances.
  • (9) The aldehyde substituent of vanillin was metabolized by routes which were dependent upon both the acetogen and a co-metabolizable substrate (e.g.
  • (10) The post-treatment with vanillin during the mutation expression time of cells after treatment with EMS also showed an enhancement of the frequency of mutations induced by EMS.
  • (11) Thin-layer chromatography was performed on Merck silica gel and the spray reagent was iodine or vanillin.
  • (12) Administration of vanillin decreased the ENU-induced frequency of recessive carrier pups.
  • (13) VMA is oxidized to vanillin, which is purified by toluene extraction and quantified by high-performance liquid chromatography.
  • (14) Vanillin was also effective on SCEs induced by EMS, ENNG, ENU or MNU.
  • (15) The three sulfate reducers oxidized up to 7 mM vanillin and up to 4 mM p-anisaldehyde.
  • (16) A screening method is described for urinary 3-methoxy-4-hydroxy mandelic acid using an initial ion exchange procedure, vanillin formation and extraction into toluene.
  • (17) Vanillin acts as an anticlastogenic factor in vivo.
  • (18) The Swiss biotech company Evolva produces synthetically derived vanillin believed to be entering the food supply, though the end users have not been made public.
  • (19) Manganese peroxidase (MnP) oxidized 1-(3,5-dimethoxy-4-hydroxyphenyl)-2-(4-(hydroxymethyl)-2-methoxyphenoxy) -1,3-dihydroxypropane (I) in the presence of MnII and H2O2 to yield 1-(3,5-dimethoxy-4-hydroxyphenyl)- 2-(4-(hydroxymethyl)-2-methoxyphenoxy)-1-oxo-3-hydroxypropane (II), 2,6-dimethoxy-1,4-benzoquinone (III), 2,6-dimethoxy-1,4-dihydroxybenzene (IV), 2-(4-(hydroxymethyl)-2-methoxyphenoxy)-3-hydroxypropanal (V), syringaldehyde (VI), vanillyl alcohol (VII), and vanillin (VIII).
  • (20) Vanillin was lower, whereas para-coumaric acid was higher, in normal genotypes than in brown midrib mutants.

Words possibly related to "vanillic"

Words possibly related to "vanillin"