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Letteratura scientifica selezionata sul tema "Tannin"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Tannin"

Makkar, H. P. S., M. Blümmel, and K. Becker. "Formation of complexes between polyvinyl pyrrolidones or polyethylene glycols and tannins, and their implication in gas production and true digestibility in in vitro techniques." British Journal of Nutrition 73, no. 6 (1995): 897–913. http://dx.doi.org/10.1079/bjn19950095.

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Various tannin-complexing agentsw have been used to study the potential adverse effects of tannis on rumen metabolism. Using a method based on turbidity formation, the binding of various tannin-complexing agents (polyvinyl polypyrrolidone (PVPP), polyethylene glycol (PEG) of molecular weights 2000 to 35000, and polyvinyl pyrrolidone (PVP) of molecular weight 10000, 40000 and 360000) to tannins (tannic acid, purified tannins from quebracho (Aspidosperma quebracho) and leaves of trees and shrubs (Acioa barteri, Dichostachys cinerea, Guiera senegalensis, Piliostigma reticulatum)) was investigated

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Yan, Q., and A. Bennick. "Identification of histatins as tannin-binding proteins in human saliva." Biochemical Journal 311, no. 1 (1995): 341–47. http://dx.doi.org/10.1042/bj3110341.

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Tannins have a number of detrimental biological effects and these include interference with normal growth and metabolism if they are present in the feed of various animals. Proline-rich proteins (PRPs) in saliva have been shown to provide protection against tannin, but little is known about the mechanism of protection and interaction of other salivary proteins with tannin. To identify tannin-binding human salivary proteins, parotid and submandibular/sublingual saliva samples were adsorbed with tannin. PRPs, and in particular a group of low-M(r) proteins, were readily precipitated by tannin. Th

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Mwangi, Sharif Zuberi, Valerian Cosmas Silayo, and Davis Naboth Chaula. "The Impact of Cashew Nut (Anacardium occidentale) Testa Tannin Feeding Ratio on the Chemical and Mechanical Characteristics of Leather Tanned from Cowhide, Goatskin and Sheepskin." International Research Journal of Pure and Applied Chemistry 25, no. 4 (2024): 65–75. http://dx.doi.org/10.9734/irjpac/2024/v25i4867.

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In recent years, there has been a growing interest in exploring natural alternatives to synthetic tannins, driven by concerns over sustainability and environmental impact. Natural tannins offer several advantages, including biodegradability, renewability, and lower environmental impact compared to synthetic chemicals. Among the natural tannins under investigation, cashew nut testa tannin has emerged as a promising candidate due to its abundance, renewability, and potential benefits in leather tanning applications. This research investigated the impact of varying feeding ratios of cashew nut te

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Frank Mayer. "Tannins: Natural plant-derived polyhydroxy phenolic compounds with potential for biotechnological and biomedical applications." World Journal of Biological and Pharmaceutical Research 2, no. 1 (2022): 001–4. http://dx.doi.org/10.53346/wjbpr.2022.2.1.0127.

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The difference between Tannin and Tannic Acid is that the term Tannin is used to name the group of organic compounds whereas Tannic acid is a type of tannin. Members of the group of Tannins - all of them polyhydroxyphenolic compounds – are present in leaves and other nutrient-rich parts of a huge number of Angiosperm plants. In nature, Tannins play a significant role in the protection of the plants against herbivores. Tannins inactivate enzymes in the digestive tract of the herbivores, with respective consequences: the herbivores may die of starvation. A well-known example for a technological

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Mutiar, Sri, and Anwar Kasim. "Potential and Application of Vegetable Tanning Materials from Industrial Forest Plantation in Indonesia." Journal of Fibers and Polymer Composites 2, no. 1 (2023): 29–45. http://dx.doi.org/10.55043/jfpc.v2i1.62.

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Vegetable tanning materials are sourced from plants that contain tannin compounds. Tannins are obtained through the extraction method from the roots, stems, bark, or fruit of the original plant. There are several forest management companies in Indonesia that produce wood from plant species Acacia auriculiformis and Acacia mangium. Both species are known as Acacia. Acacia is an important source of tannin for material tanner vegetables. This wood is produced as a raw material for the pulp and paper industry. However, the bark contains tannin and has not been used optimally. Therefore, the study'

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Odenyo, A. A., and P. O. Osuji. "Tannin-tolerant ruminal bacteria from East African ruminants." Canadian Journal of Microbiology 44, no. 9 (1998): 905–9. http://dx.doi.org/10.1139/w98-073.

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Three strains of tannin-tolerant rumen bacteria were isolated from enrichment cultures of rumen microflora of sheep, goat, and antelope and established in medium containing high concentrations of crude tannin extract or tannic acid. These three strains (EAT2, ES3, and EG19), characterized as Selenomonas species, were curved rods, obligately anaerobic, Gram negative, highly motile, and grew in media containing 50 g of tannin extract/L and 50-70 g of tannic acid/L. Strain EAT2 was able to hydrolyze gallic acid, while strains ES3 and EG19 hydrolyzed tannic acid but not gallic acid. All isolates w

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Mutuku, Maxwell, Jackson Ombui, and Arthur Onyuka. "Assessment of Coffee Pulp as a Potential Source of Tannins for Leather Processing." Textile & Leather Review 5 (March 17, 2022): 132–46. http://dx.doi.org/10.31881/tlr.2021.31.

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The leather industry is experiencing environmental challenges due to pollution associated with chromium tanning. Vegetable tanning is considered as an ecofriendly alternative method. Previous research studies have established that coffee contains 1-10% of tannins. In this study coffee arabica pulp was determined for its tannin content and tanning strength for potential use as a source of tanning material. The hide powder method was used and the tannin content of coffee arabica pulp determined as 5.04% with the tanning strength of 2.26 compared to mimosa which had a tannin content of 63.56% wit

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Earl, Julia E., Joseph F. Aubert, Emma O. Michael, and Daniel J. Edwards. "Effects of Soil, Light, and Temperature on Freshwater Tannin Concentrations." Hydrobiology 4, no. 1 (2025): 2. https://doi.org/10.3390/hydrobiology4010002.

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Tannins are plant secondary compounds that leach into soil and water. Tannin concentrations can be higher in lentic freshwater than in other aquatic ecosystems, which can result in toxicity to freshwater organisms. While the amount of plant material and the plant tissue concentrations affect aqueous tannin concentrations, little is known about which environmental conditions alter the removal and breakdown of tannins in freshwater, altering the exposure of freshwater organisms. We investigated the effects of soil, light, and temperature on aqueous tannin concentrations. Tannins degraded faster

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Nyaga, Mwenda, Paul Tanui, and Samuel Njenga. "Evaluation of Tamarindus indica L. Seed Tannins." Textile & Leather Review 6 (August 18, 2023): 373–86. http://dx.doi.org/10.31881/tlr.2023.081.

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Tannins are water-soluble polyphenols mostly found in vascular plants and are important raw materials in many industries like leather, pharmaceuticals, and food and beverages. Tannins protect the plant and help its growth. In this study, Tamarindus indica L. seeds were extracted for the determination of tannin content and the tanning strength by the hide powder method. Earlier studies showed that Tamarindus indica L. seeds varied in the amount of tannins present. Mimosa was used as a control. The tanning strength was 1.73 for the tamarind seed extract and 2.06 for mimosa. The tannin content wa

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Hernández, Mario Cruz, Juan Carlos Contreras Esquivel, Faustino Lara, Raúl Rodríguez, and Cristóbal N. Aguilar. "Isolation and Evaluation of Tannin-degrading Fungal Strains from the Mexican Desert." Zeitschrift für Naturforschung C 60, no. 11-12 (2005): 844–48. http://dx.doi.org/10.1515/znc-2005-11-1205.

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Eleven fungal strains (4 Penicillium commune, 2 Aspergillus niger, 2 Aspergillus rugulosa, Aspergillus terricola, Aspergillus ornatus and Aspergillus fumigatus) were isolated, characterized morphologically and by their capacity to degrade tannins. Aspergillus niger Aa-20 was used as control strain. Several concentrations of hydrolysable tannin (tannic acid) were used as sole carbon source. All strains were able to degrade hydrolysable tannins. Aspergillus niger GH1 and PSH showed the highest tannin-degrading capacity (67 and 70%, respectively). Also, the fungal capacity to degrade condensed ta

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Tesi sul tema "Tannin"

Garnier, Sandrine. "Rhéologie des tannins polyflavanoi͏̈des industriels et des adhésifs tannin-aldéhyde." Nancy 1, 2002. http://docnum.univ-lorraine.fr/public/SCD_T_2002_0028_GARNIER.pdf.

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Les modules dynamiques de solutions aqueuses d'extraits de tannins polyflavanoi͏̈des commerciaux : mimosa, pin, pécan et quebracho ont été mesurés par rhéométrie en fonction de l'amplitude de déformation et de la fréquence. La gélification et le durcissement des tannins avec le formaldéhyde ont été étudiés par rhéologie. De nouvelles méthodes de calcul ont permis de déterminer les propriétés rhéologiques de la polycondensation tannin-formaldéhyde : point de gel, énergie d'activation, degré de conversion, cinétique et d'analyser les effets de la température, la concentration en durcisseur et la

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Auad, Priscila. "Composição química de taninos vegetais, curtimento e propriedades nos couros." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/185808.

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O Brasil é o país que possui o maior rebanho bovino comercial do mundo, e o balanço de exportações de couro vem demonstrando ascensão no número de metros quadrados de couros exportados. No processo produtivo, a etapa de curtimento é de extrema importância para transformar a pele bovina em couros, tornando-a resistente ao ataque de microorganismos, além de conferir enchimento e garantir maior estabilidade hidrotérmica do material. O crescente apelo ambiental pela utilização de materiais renováveis na indústria levou aos taninos vegetais desempenharem papéis importantes como compostos curtentes

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Wu, Jiacheng, Guoqiang Ning, Jinwei Zhang, and Wuyong Chen. "Ti (III)-tannin combination tanning technology based on microwave irradiation - 76." Verein für Gerberei-Chemie und -Technik e. V, 2019. https://slub.qucosa.de/id/qucosa%3A34274.

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Content: Microwave is a fast, efficient and energy-saving thermal resource, hence an attempt has been made for applying this technology in the combination tanning using titanium (III) and tannin extracts. In this work, the microwave effects on the complex reaction of Ti (III) with tannin extracts and leather products properties were investigated. The precipitation condition was used to characterize the complexation degree between Ti (III) and tannin extracts. And the shrinkage temperature, tear strength, SEM, DSC, TG, FT-IR, and histological structure were used to characterize the changes in t

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Oliveira, Franciéli Borges de. "Utilização de matéria-prima obtida de fonte renovável na preparação de compósitos de matriz tipo fenólica." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/75/75131/tde-13102008-143432/.

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A matéria-prima utilizada na produção em larga escala de resinas fenólicas (normalmente fenol e formaldeído) é obtida a partir de fontes não renováveis. O tanino e o furfural, originados de fonte renováveis, apresentam a possibilidade de substituir parcialmente o fenol e formaldeído, respectivamente, na preparação de resinas fenólicas, formando uma rede integrada baseada em unidades de fenol/tanino e fenol/furfural para as resinas taninofenólica e fenol-furfural, respectivamente. No presente trabalho, estas resinas foram utilizadas na preparação de compósitos, os quais foram reforçados com fib

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Sanchez, Lucero Manuel. "Extraction of jojoba tannins and their role in protein-tannin complex formation and digestive proteases inhibition." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184405.

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Jojoba albumins and globulins were treated with jojoba tannins to study the protein-tannin complex formation. Trypsin and chymotrypsin were also treated with jojoba tannins to determine the change of enzymatic activity. The treated albumins and globulins were fractionated by gel filtration before and after treatment. Two albumin fractions did not appear after treatment, but a new fraction appeared with a shorter elution time. A precipitate was formed by addition of jojoba tannins to the jojoba globulins, and two globulin fractions did not appear after treatment. Trypsin was completely inhibite

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Chen, Yumin. "Oxidation of Polymeric Polyphenols (Tannins) in Biologically Relevent Systems." Miami University / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=miami1089232925.

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Navarrete, Fuentes Paola Jeannette. "Adhésifs naturels à base de tannin, tannin/lignine et lignine/gluten pour la fabrication de panneaux de bois." Thesis, Nancy 1, 2011. http://www.theses.fr/2011NAN10089/document.

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Lors de cette étude, différentes recherches ont été effectuées sur l'utilisation de divers matériaux naturels comme source de matière premières pour la fabrication de colles vertes pour l'industrie de panneau. Dans ce contexte, le travail a consisté à : (i) Evaluer le potentiel de différents tannins en provenance de déchets d'écorces et développer des colles à base de tanins avec différents durcisseurs.(ii) Evaluer le potentiel de lignines de différentes origines et développer des colles à base de tannin de mimosa et de lignine. (iii) Développer des colles à base de tannin et de protéine de gl

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Navarrete, Fuentes Paola Jeannette. "Adhésifs naturels à base de tannin, tannin/lignine et lignine/gluten pour la fabrication de panneaux de bois." Electronic Thesis or Diss., Nancy 1, 2011. http://www.theses.fr/2011NAN10089.

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Glyphis, John Paul. "Herbivory and tannin polyphenols in mediterranean ecosystems." Thesis, University of Cape Town, 1985. http://hdl.handle.net/11427/23167.

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Albertz, Megan Lee. "Isolation and Characterization of Protein-Tannin Complexes." Miami University Honors Theses / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=muhonors1209128363.

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Libri sul tema "Tannin"

Rao, V. S. Sundara. Vegetable and synthetic tanning materials. Indian Leather, 1991.

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Jansen, P. C. M. 1943- and Plant Resources of Tropical Africa (Program), eds. Dyes and tannins. PROTA Foundation, 2005.

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Jansen, P. C. M. 1943- and Plant Resources of Tropical Africa (Program), eds. Dyes and tannins. PROTA Foundation, 2005.

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Ellis, R. P. Tannin-like substances in grass leaves. Edited by Leistner O. A and Momberg B. A. National Botanical Institute, 1990.

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Yan, Qingyou. Identification of tannin-binding proteins in human saliva. Faculty of Dentistry, University of Toronto], 1995.

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Yan, Qingyou. Identification of tannin-binding proteins in human saliva. National Library of Canada, 1994.

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Marzocca, Angel. Index de plantas colorantes, tintóreas y curtientes: Manual de las especies de Argentina. [Academia Nacional de Agronomía y Veterinaria], 1993.

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Nacro, Mouhoussine. Plantes tinctoriales et plantes à tanins du Burkina Faso: Mouhoussine Nacro, Jeanne Millogo-Rasolodimbi ; illustration, Passari Y. Oulla. ScientifikA, 1993.

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Sumardi, Sumadiwangsa, ed. Tanin bakau sebagai perekat papan partikel =: Mangrove tannins as particleboard adhesive. Pusat Penelitian dan Pengembangan Hasil Hutan, 1985.

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Vincetič, Milan. Tanin. Pomurska zal., 1997.

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Capitoli di libri sul tema "Tannin"

Bährle-Rapp, Marina. "Tannin." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_10329.

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Gooch, Jan W. "Tannin." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_11555.

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Chehreh Chelgani, Saeed, Ali Asimi Neisiani, Darius Wonyen, Amir Hossein Mohammad Zadeh, and Roozbeh Saneie. "Tannin." In Green Flotation Depressants. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-66108-2_8.

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Neelabh. "Tannin." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-47829-6_363-1.

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Neelabh. "Tannin." In Encyclopedia of Animal Cognition and Behavior. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-319-55065-7_363.

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Makkar, Harinder P. S. "Tannin Bioassay." In Quantification of Tannins in Tree and Shrub Foliage. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-017-0273-7_11.

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Hagerman, Ann E. "Tannin—Protein Interactions." In ACS Symposium Series. American Chemical Society, 1992. http://dx.doi.org/10.1021/bk-1992-0506.ch019.

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Schultz, Jack C. "Tannin-Insect Interactions." In Chemistry and Significance of Condensed Tannins. Springer US, 1989. http://dx.doi.org/10.1007/978-1-4684-7511-1_26.

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Pizzi, Antonio. "Tannin Structure and the Formulation of Tannin-Based Wood Adhesives." In Plant Polyphenols. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3476-1_60.

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Pizzi, Antonio. "Tannin Autocondensation and Polycondensation for Zero Emission Tannin Wood Adhesives." In Plant Polyphenols 2. Springer US, 1999. http://dx.doi.org/10.1007/978-1-4615-4139-4_45.

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Atti di convegni sul tema "Tannin"

Popovici, Lucia-Florina, and Simona Oancea. "COMPARATIVE STUDY ON PHENOLICS, FLAVONOIDS, TANNINS AND ANTIOXIDANT PROPERTIES OF CALENDULA OFFICINALIS EXTRACTS OBTAINED BY DIFFERENT EXTRACTION TECHNIQUES." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.21.

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The aim of this study was to evaluate the influence of several extraction methods on the content of bioactive compounds of polyphenolic structure and antioxidant properties of petals from marigold flowers (Calendula officinalis). Ethanolic extracts prepared using maceration, turbo-extraction and bead-beating techniques were investigated for total phenolics, flavonoids and tannins, and antioxidant activities as measured by FRAP and DPPH assays, as well. The results showed that the highest phenolic content (1316.367 � 4.316 mg GAE/100 g DW) and antioxidant activity by FRAP (505.755 � 4.623 mg as

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Gill, Jasbir S. "The Influence of Scale Inhibitors on Calcium Oxalate Precipitation." In CORROSION 1999. NACE International, 1999. https://doi.org/10.5006/c1999-99109.

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Abstract Precipitation of calcium oxalate is a common occurrence in mammalian urinary tract deposits and in various industrial processes such as paper making, brewery fermentation, sugar evaporation, and tannin concentration. Between pH 3.5 to 4.5 the driving force for calcium oxalate precipitation increases almost by three fold. It is a complicated process to predict both the nature of a deposit and at which stage of a muti-effect evaporator a particular mineral will deposit, as this depends on temperature, pH, total solids, and kinetics of mineralization. It is quite a challenge to inhibit c

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Gill, J. S. "Development of Scale Inhibitors." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96229.

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Abstract During the last fifty years, scale inhibition has gone from an art to a science. Scale inhibition has changed from simple pH adjustment to the use of optimized dose of designer polymers from multiple monomers. The water-treatment industry faces many challenges due to the need to conserve water, availability of only low quality water, increasing environmental regulations of the water discharge, and concern for human safety when using acid. Natural materials such as starch, lignin, tannin, etc., have been replaced with hydrolytically stable organic phosphates and synthetic polymers. Mos

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Ali, Nurdin, Syarizal Fonna, Yumaidi Saputra, and Joli Supardi. "Phytochemical Analysis and Antioxidant Properties of <i>Syzygium cumini </i>Fruit as a Corrosion Inhibitor." In The 2nd International Conferences on Applied Engineering, Science, Technology and Innovation. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-d9oud2.

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Syzygium cumini is a plant belonging to the Myrtaceae family and is widely used in medicine and food. However, its application in the engineering field is still very minimal, particularly as an anti-corrosion material. There are also limited studies on the quantitative screening of phytochemical and bioactivity of S. cumini. Therefore, this study aims to analyze the chemical compounds of S. cumini fruit as a corrosion inhibitor as well as determine total tannin (TTC) and flavonoid (TFC) content. The extraction process was carried out with a soxhlet extractor using 96% ethanol solvent. Characte

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Romero, Nathalie, Oladis Troconis de Rincón, Valentina Millano, et al. "Corrosion Resistance Evaluation of Products from New Green Anodizing Processes." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4396.

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Abstract Nowadays, most of the anodizing for aluminum worldwide and locally is done in a sulfuric acid based system which requires high energy consumption, besides the cost of waste disposal. Therefore, the aim of the present work was to investigate formulation of new electrolytes, based on mixtures of different acids and natural environmentally friendly substances, which could improve the manufacture and corrosion resistance of aluminum in highly aggressive marine environments. Different acid based electrolyte mixtures were initially evaluated (sulfuric, oxalic, boric, phosphoric and citric a

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Romero, Nathalie, Oladis Troconis de Rincón, Valentina Millano, et al. "Use of Mixtures of Acid and Natural Substances with Low Environmental Impact in the Production of Anodized Aluminum (UNS A93003)." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07789.

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Abstract In this work 57 anodized aluminum bath systems were evaluated, based on different organic acid mixtures (oxalic/O and citric/C), inorganic (sulfuric/S, phosphoric/P and boric/B) and additives with natural substances (Dividivi/A Tannin/B, Aloe Vera/C, Neem/D and Mango leaves/E). Different mixtures were made in order to optimize the parameters for generating the anodic film, such as current density and anodized time. Subsequently, resultant anodized layers were evaluated as per the following: thickness test, characteristics and composition of the film (SEM and EDX) and its resistance to

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Nasrazadani, S., and S. Carroll. "Effects of Phosphoric-Tannic Acids on Rusting Kinetics of Clean and Rusted Low Carbon Steels." In CORROSION 2002. NACE International, 2002. https://doi.org/10.5006/c2002-02367.

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Abstract In recent years, commercial products claiming to be rust converters have been marketed and reported to transform non-protective types of iron oxides and oxyhydroxides into more protective oxides. Most are proprietary formulations, but it is generally known that phosphoric and/or tannic acids are frequently used as their main constituents. Since their inception rust converter or rust transformer performance has always been under scrutiny. Research has been done on both phosphoric and tannic acid as a catalyst for rust transformation. Tannic acid is believed by some to cause the transfo

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Iordache, Ovidiu, Ioana-Corina Moga, Elena-Cornelia Tănăsescu, et al. "Reduction of Residual Tannins Concentration Using Cerioporus squamosus Bio-Augmented Polymeric Carriers." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.ii.9.

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The oldest use of polyphenols in the leather industry is based on their ability to stabilize collagen in the skin against rotting. Leather tanning processes are among the most polluting industrial sources in terms of undesirable and toxic parameters (COD, BOD, content of tannic acids, fats, sulphureous residues, chloride, chromium, suspended solids etc.). Tannic acid is a naturally occurring phenolic compound and is widely used in the tanning processes, being one of the main pollutants in leather industry derived wastewaters. Current paper explored the ability of HDPE carrier, functionalized w

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Sendrea, Claudiu, Maria-Cristina Micu, Emanuel Hadimbu, et al. "Micro DSC and NMR MOUSE studies of collagen–vegetable tannin interaction mechanism during leather making." In The 8th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2020. http://dx.doi.org/10.24264/icams-2020.v.13.

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In this study NMR MOUSE and micro DSC techniques were used to investigate the interaction between collagen and various vegetable tannins during leather making process with the aim of gaining a deeper understanding of different water environment in relation to tannin type. We have previously showed that relaxation times may provide useful information on collagen matrix properties. The vegetable tanned leathers were obtained by patented techniques inspired from ancient recipes at the National R&D Institute for Textile and Leather, ICPI Division, Bucharest using various vegetable extracts suc

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Du, Yi, Coralie Brumaud, and Guillaume Habert. "Water Stabilization of Clay Bricks with Improved Tannin and Iron Mixes." In 4th International Conference on Bio-Based Building Materials. Trans Tech Publications Ltd, 2022. http://dx.doi.org/10.4028/www.scientific.net/cta.1.377.

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Weak water resistance is a big obstacle for clay materials to overcome in modern construction industry. Compared to the hydraulic stabilized additives, bio-additives have a lower carbon footprint and have been used in many vernacular construction techniques to immobilize clay. In this work, the traditional recipes of tannin and iron have been revisited, in particular, the question of pH and iron solubility has been explored. Oak tannin and FeCl3 were chosen and their influence on the properties of clay materials in terms of rheological properties, compressive strength, and water resistance wer

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Rapporti di organizzazioni sul tema "Tannin"

Provenza, Frederick, Avi Perevolotsky, and Nissim Silanikove. Consumption of Tannin-Rich Forage by Ruminants: From Mechanism to Improved Performance. United States Department of Agriculture, 2000. http://dx.doi.org/10.32747/2000.7695840.bard.

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Trees and shrubs are potentially important sources of food for livestock in many parts of the world, but their use is limited by tannins. Tannins reduce food intake by decreasing digestibility or by causing illness. Supplementing cattle, sheep, and goats with polyethylene glycol (PEG), which has a high affinity for binding tannins and thus attenuating their aversive effects, increases intake of high-tannin foods and improves weight gains and wool growth. The objectives of this proposal were: Objective 1: To further delineate the conditions under which PEG affects intake of high-tannin foods. O

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Landau, Sergei Yan, John W. Walker, Avi Perevolotsky, Eugene D. Ungar, Butch Taylor, and Daniel Waldron. Goats for maximal efficacy of brush control. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7587731.bard.

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Background. Brush encroachment constitutes a serious problem in both Texas and Israel. We addressed the issue of efficacy of livestock herbivory - in the form of goat browsing - to change the ecological balance to the detriment of the shrub vegetation. Shrub consumption by goats is kept low by plant chemical defenses such as tannins and terpenes. Scientists at TAES and ARO have developed an innovative, cost-effective methodology using fecal Near Infrared Spectrometry to elucidate the dietary percentage of targeted, browse species (terpene-richredberry and blueberry juniper in the US, and tanni

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Tian, Li, Rachel Amir, Doron Holland, and Hamutal Borochov-Neori. Elucidating the genetic pathways involved in shikimate, anthocyanin and hydrolyzable tannin accumulation in pomegranate. United States Department of Agriculture, 2015. http://dx.doi.org/10.32747/2015.7600023.bard.

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ภัตรพานิช, ชำนาญ, та สุวรรณา เหลืองชลธาร. การศึกษาเพื่อกำหนดมาตรฐานของสมุนไพรบัวบกและสิ่งสารสกัดที่มีฤทธิ์ทางยา : รายงานการวิจัย. จุฬาลงกรณ์มหาวิทยาลัย, 2005. https://doi.org/10.58837/chula.res.2005.25.

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งานวิจัยนี้มุ่งศึกษาข้อมูลพื้นฐานของสมุนไพรบัวบกเพื่อใช้กำหนดคุณลักษณะของพืชและสิ่งสกัดบัวบกที่มีสาระสำคัญ triterpene glycoside, Madecassoside (MS) และ Asiaticoside (AS) เพื่อการควบคุมคุณภาพ การศึกษาแบ่งเป็น 2 ส่วนหลัก ได้แก่การศึกษาคุณลักษณะของพืชบัวบกที่เป็นวัตถุดิบ และการศึกษาข้อมูลพื้นฐานที่มีผลต่อคุณลักษณะของสารสกัดบัวบก ได้ใช้เกณฑ์มาตรฐานสมุนไพรของกลุ่มประเทศอาเซียนเป็นแนวทางในการศึกษาคุณลักษณะของพืชบัวบก ได้แก่ (1) การตรวจสอบเอกลัษณ์ทางเภสัชเวททั้งวิธีทางมหทรรศ์และจุลทรรศ์สำหรับพืชสดและผงพืชแห้ง (2) การตวจสอบเอกลักษณ์ทางเคมีซึ่งประกอบด้วยวิธีทดสอบ saponin การทดสอบ Liebermann-Burchard แล

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Carpenter, Christopher, Brandyn Churchill, and Michelle Marcus. Bad Lighting: Effects of Youth Indoor Tanning Prohibitions. National Bureau of Economic Research, 2021. http://dx.doi.org/10.3386/w29443.

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Yoo, Jeong-Ju, and Seahee Lee. Identifying Factors Influence Individuals' Intention to Quit Tanning: Sociocultural Perspective. Iowa State University, Digital Repository, 2017. http://dx.doi.org/10.31274/itaa_proceedings-180814-1823.

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Cordingley, John S. The Molecular and Cellular Mechanisms of Quinone Tanning of Proteins. Defense Technical Information Center, 1994. http://dx.doi.org/10.21236/ada303501.

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Keenan, Teresa A. Suncare, Tanning, and Skin Cancer: A Survey of Adults Ages 18 and Older. AARP Research, 2024. http://dx.doi.org/10.26419/res.00779.003.

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Yoo, Jeong-Ju, and Hye-Young Kim. Influences of Parental Attachment and Life Satisfaction on Social Tanning Behaviors among College Students. Iowa State University, Digital Repository, 2013. http://dx.doi.org/10.31274/itaa_proceedings-180814-820.

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Gilbert, G., E. Guyer, and D. Brownell. Plastic film heat exchanger development project field test at Prime Tanning Company, Phase 3. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/5255589.

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