Results 291 to 300 of about 1,308,758 (339)
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Journal of the Chemical Society, Chemical Communications, 1979
The first synthesis of 4,8:4,6-linked all-trans- and 2,3-trans-3,4-trans: 2′,3′-trans: 2″,3″-trans-3″,4″-cis-bi[(–)-fisetinidol]-(+)-catechins and recognition of their distribution in nature gives an insight into the mode and sequence of condensations leading to such key triflavonoid intermediates during tannin formation; the synthesis taken in ...
Jacobus J. Botha +3 more
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The first synthesis of 4,8:4,6-linked all-trans- and 2,3-trans-3,4-trans: 2′,3′-trans: 2″,3″-trans-3″,4″-cis-bi[(–)-fisetinidol]-(+)-catechins and recognition of their distribution in nature gives an insight into the mode and sequence of condensations leading to such key triflavonoid intermediates during tannin formation; the synthesis taken in ...
Jacobus J. Botha +3 more
openaire +2 more sources
Textile Research Journal, 2016
The superfine fiber synthetic leather base (SFSLB) is composed of the two components of nylon fibers and polyurethane. SFSLB has excellent performance, especially in terms of mechanical properties. However, compared with native leather, SFSLB has a hot feeling due to its poor moisture absorbent and transfer abilities. So our study proposed a method of
Xuechuan Wang +3 more
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The superfine fiber synthetic leather base (SFSLB) is composed of the two components of nylon fibers and polyurethane. SFSLB has excellent performance, especially in terms of mechanical properties. However, compared with native leather, SFSLB has a hot feeling due to its poor moisture absorbent and transfer abilities. So our study proposed a method of
Xuechuan Wang +3 more
openaire +2 more sources
Removal of Tannic acid and COD from synthetic Tannery wastewater
IOP Conference Series: Earth and Environment, 2022Tanning industries generate tannery wastewater having high amounts of tannic acid and high COD. Tannery wastewater is difficult to treat as it is having low biodegradability.
K. Maisuria, K. Shah, J. K. Rana
semanticscholar +1 more source
Evaluation of a tannin-based coagulant on the decolorization of synthetic effluents
Journal of Environmental Chemical Engineering, 2019Abstract Natural-based coagulants have demonstrated significant advantages over conventional ones. In this work, the treatment of dyehouse effluents by coagulation-flocculation-sedimentation was studied using a commercial tannin-derived coagulant and compared with the common use of iron salt.
Elisandra C. Lopes +4 more
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, 2020
Researchers around the world are increasingly concerned about the development of natural plantbased products used in the health field. Indeed, more and more people are interested in herbal medicine to the detriment of synthetic medicines. Several reasons
S. Dieng +4 more
semanticscholar +1 more source
Researchers around the world are increasingly concerned about the development of natural plantbased products used in the health field. Indeed, more and more people are interested in herbal medicine to the detriment of synthetic medicines. Several reasons
S. Dieng +4 more
semanticscholar +1 more source
Colloid & Polymer Science, 1982
The results of viscometric and optical microscopic studies indicated that both Syntan 25 and Syntan PUR in aqueous concentrated solutions (above their c.m.c. values) at 25 °C are spherical in shape. The size and other physico-chemical parameters e. g.
A. B. Mandal +3 more
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The results of viscometric and optical microscopic studies indicated that both Syntan 25 and Syntan PUR in aqueous concentrated solutions (above their c.m.c. values) at 25 °C are spherical in shape. The size and other physico-chemical parameters e. g.
A. B. Mandal +3 more
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Antimicrobial Activity of Natural or Synthetic Hydrolysable Tannins
2008Hydrolysable tannins (HTs), secondary metabolites widely distributed in the plant kingdom, are generally multiple esters of gallic acid with glucose. HTs have been shown to be effective antagonists against viruses, bacteria and eukaryotic microorganisms.
P. Buzzini +7 more
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ACS Sustainable Chemistry & Engineering, 2017
Demethylation of guaiacyl-type synthetic lignin (GDHP) with three different reagents, 1-dodecanethiol (DSH), hydroiodic acid (HI), and iodocyclohexane (ICH), was investigated as a basic study for lignin functionalization. Demethylation did not proceed efficiently in the reaction with DSH, although cleavage of the lignin side chains and nucleophilic ...
Kaori Sawamura +3 more
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Demethylation of guaiacyl-type synthetic lignin (GDHP) with three different reagents, 1-dodecanethiol (DSH), hydroiodic acid (HI), and iodocyclohexane (ICH), was investigated as a basic study for lignin functionalization. Demethylation did not proceed efficiently in the reaction with DSH, although cleavage of the lignin side chains and nucleophilic ...
Kaori Sawamura +3 more
openaire +1 more source
Anti-Herpes Simplex Virus Type 1 Activity of Specially Selected Groups of Tannins
Drug Research, 2018Anti-herpes simplex virus (HSV-1) activity of 9 ellagitannins, including 6 natural compounds (castalin, vescalin, acutissimin A, epiacutissimins A and B, mongolicain) and 3 vescalagin synthetic derivatives (VgSBuSH, VgSOctSH, VgOMe), and 13 gallotannin ...
N. Vilhelmova-Ilieva +8 more
semanticscholar +1 more source