(n.) The ring of the fruit of several East Indian species of acacia; neb-neb. It contains gallic acid and tannin, and is used for dyeing drab.
Example Sentences:
Tannin
Definition:
(n.) Same as Tannic acid, under Tannic.
Example Sentences:
(1) Retention of iron from an RKB test meal was increased from 69.6 to 73% when about 90% of the extractable tannins were removed, but the difference was not statistically significant.
(2) These were analyzed for: tannins, trypsin inhibitors, hemagglutinins (with cow, sheep, and human erythrocytes), damaged starch, available lysine, protein quality (by the NPR method), and true digestibility.
(3) The effect of plant species containing tannins on the tenacity of Cl.
(4) No appreciable changes were observed in the trypsin inhibitor and tannin contents during germination.
(5) The results suggest the dependence of stimulation of monocyte iodination by tannins and related polyphenols on molecular weight.
(6) Studies were conducted to compare the effects of feeding high-tannin sorghum (HTS)- and low-tannin sorghum (LTS)-based diets suboptimal in protein to ducks, chicks, and rats.
(7) Tannin-induced relaxations were unaltered by pretreatment of tissues with indomethacin but were significantly reduced by pretreatment with hemoglobin.
(8) Tannins inactivated trypsin the most, alpha-amylase to a lesser extent and lipase the least and as a consequence lowered the digestion of amino acids the most, starch to a lesser extent and lipid the least.
(9) Four tannins were isolated from dried leaves of Thiloa glaucocarpa, which is one of the plants causing poisoning of cattle in Brazil.
(10) These studies demonstrate that tannin is deactivated completely under conditions where urea is an effective preservative of high moisture milo.
(11) Experiments were conducted to determine the effectiveness of urea in deactivating tannin in high tannin milo.
(12) The structures of plant polyphenols (vegetable tannins) are briefly reviewed.
(13) We have shown that the tannins chebulinic acid and punicalin were able to block the binding of HIV rgp120 to CD4.
(14) These experiments therefore conclusively show that high concentrations of condensed tannin induced by growing Lotus pedunculatus under low soil fertility conditions prevent maximum expression of LWG and wool growth in grazing sheep.
(15) The induction of interleukin-1 (IL-1) by agrimoniin, a tannin of Agrimonia pilosa Ledeb., in human peripheral blood mononuclear cells (PBMC) in vitro and in mouse adherent peritoneal exudate cells (PEC) in vivo was studied.
(16) Among chemically defined natural polyphenols, condensed tannins (epicatechin gallate oligomers) and monomeric and oligomeric hydrolyzable tannins potently stimulated PMN iodination, whereas polyphenols of lower molecular weight (gallic acid, alkyl gallates, epicatechin, epicatechin gallate, epigallocatechin, caffeic acid derivatives and licorice flavonoids) had much less activity.
(17) After removing tannin with caffeine complexes subjected to column chromatography on Dowex 1 x 8 gave four fractions containing both amino acids and nucleotides.
(18) A study was made of the molecular binding parameters during the sensitization of human IgG with tannin-treated sheep erythrocytes, depending on the concentration of the reacting components.
(19) Nearly one-third of the active plants belong to families that are known as especially rich in tannin.
(20) Of the nineteen plants screened, six were found to contain large quantities of condensed tannins.