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2017
Tannins are an important group of secondary plant metabolites that were originally used in the leather production industry in the tanning of animal hides. The varied chemical structures and stability evidenced among the tannin group result in their classification as hydrolyzable, complex, and proanthocyanidins.
E. Sieniawska, T. Baj
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Tannins are an important group of secondary plant metabolites that were originally used in the leather production industry in the tanning of animal hides. The varied chemical structures and stability evidenced among the tannin group result in their classification as hydrolyzable, complex, and proanthocyanidins.
E. Sieniawska, T. Baj
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Experientia, 1948
Tannic acid in concentrations which of themselves have no action potentiates and prolongs the action of adrenaline on the isolated rabbit intestine (inhibitory effect) and on the isolated non-pregnant rabbit uterus (excitatory effect). The adrenaline-pressor effect in the decapitated cat and, in the same species, its stimulant action on the nictitating
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Tannic acid in concentrations which of themselves have no action potentiates and prolongs the action of adrenaline on the isolated rabbit intestine (inhibitory effect) and on the isolated non-pregnant rabbit uterus (excitatory effect). The adrenaline-pressor effect in the decapitated cat and, in the same species, its stimulant action on the nictitating
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Inhibition of Cyanogenesis by tannins
Journal of Chemical Ecology, 1985During isolation of two biosynthetic types of cyanogenic glycosides fromCarica papaya, weak cyanide tests were obtained from initial fractions. Upon final purification, strongly positive cyanide tests were obtained. Pretreatment of extracts to remove polyphenolics alleviated inhibition of cyanogenesis, which led us to suspect that tannins were ...
W. S. Goldstein, K. C. Spencer
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Antihepatotoxic actions of tannins
Journal of Ethnopharmacology, 1985The antihepatotoxic effects of tannin analogues were examined utilizing carbon tetrachloride- and galactosamine-induced cytotoxicity in primary cultured rat hepatocytes. Most tannins showed significant antihepatotoxic effects in these two assay systems.
Kiso Yoshinobu +4 more
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Woodworkers' exposure to tannins
Journal of Applied Toxicology, 1994AbstractThe tannin concentration of hard‐ and soft‐wood dust was determined in dust powder and in samples on filters. It varied from 1.6 ± 0.3 mg g−1(± SD) for fir, which is a soft wood, to 80 ± 30 mg g−1(± SD) for oak, which is a hard wood. The low detection limit of the spectrophotometric method (1.5 μg per sample) made the analysis possible with no ...
M.-A. Bianco, Heikki Savolainen
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Co-occurrence of tannin and tannin-less vacuoles in sensitive plants
Protoplasma, 2015Vacuoles of different types frequently coexist in the same plant cell, but the duality of the tannin/tannin-less vacuoles observed in Mimosa pudica L. is rare. In this plant, which is characterized by highly motile leaves, the development and original features of the double vacuolar compartment were detailed in primary pulvini from the young to the ...
Fleurat-Lessard, Pierrette +4 more
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Tannins as Biological Antioxidants
1999The consumption of fruits and vegetables is correlated with reduced risk for cancer and cardiovascular disease.1,2 Diets rich in fruits and vegetables contain several known nutritive factors that have been linked to diminished risk of disease such as ascorbic acid, tocopherols, and carotenoids.3,4,5 However, it is clear that known nutritive factors are
Robyn E. Rice +2 more
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1998
Profitable cotton production in most areas of the world requires some measure of plant protection against insect and disease pest organisms. Since numerous insect pests (Aston and Winfield 1972) and disease organisms (Ridgeway et al. 1984) have an economic impact on cotton production worldwide, chemical control tactics have been and will continue to be
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Profitable cotton production in most areas of the world requires some measure of plant protection against insect and disease pest organisms. Since numerous insect pests (Aston and Winfield 1972) and disease organisms (Ridgeway et al. 1984) have an economic impact on cotton production worldwide, chemical control tactics have been and will continue to be
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Science, 1979 Versatile Assembly of Metal–Phenolic Network Foams Enabled by Tannin–Cellulose Nanofibers
Advanced Materials, 2023Bruno D Mattos, , Blaise L Tardy
exaly