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Relevant bibliographies by topics / Tannin extract

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Academic literature on the topic 'Tannin extract'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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Journal articles on the topic "Tannin extract"

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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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Mahdi Haroun and Manal Mohammed Ahmed. "Appropriateness of Anogessus leiocarpus leaves and bark as vegetable tannins traditionally used in leather making in Sudan." GSC Advanced Research and Reviews 14, no. 1 (2023): 007–13. http://dx.doi.org/10.30574/gscarr.2023.14.1.0371.

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Chrome tanning industry is dominated globally owing to its high versatility in quality leather production. However, Environmental impacts of chromium have shifted the interest of present study to chrome-free options. Vegetable tannins have been proven to be environmentally safe producing good quality leather with comparable properties as that of chrome tanned leather. As such, scarcity of vegetable tannin supply demands characterization of non-commercialized sources locally available to feed local tanners. A simple extraction technique was used with different temperature 35, 50, & 85 oC. L

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Ethiraj, Sumathi, and Janarthanam Balasundaram. "Phytochemical and Biological Activity of Cucurbita Seed Extract." JOURNAL OF ADVANCES IN BIOTECHNOLOGY 6, no. 1 (2016): 813–21. http://dx.doi.org/10.24297/jbt.v6i1.4821.

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The present study was performed to investigate the phytochemical screening, total phenol, tannin content, antioxidant and antibacterial activity from seed extracts of Cucurbita pepo and Cucurbita maxima (Tindivanam). The phytochemical analysis revealed the presence of active ingredients such as steroids, cardioglycosides, phenols, terpenoids, alkaloids and tannins in the seed extract of Cucurbita pepo followed by Cucurbita maxima. Gallic acid (GA), Tannic acid (TA) and Butylated Hydroxy Toluene (BHT) were taken as standard in case of total phenol, tannin and antioxidant activity respectively.

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Poudel, Madhav, and Meena Rajbhandari. "Phytochemical Analysis of Ampelopteris Prolifera (Retzius) Copeland." Nepal Journal of Science and Technology 19, no. 1 (2020): 78–88. http://dx.doi.org/10.3126/njst.v19i1.29786.

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The fronds of Ampelopteris prolifera are used in stomach ache as well as vegetable. Dried and powdered fronds of A. prolifera was extracted successively with hexane, chloroform, ethyl acetate, methanol and 50% aqueous methanol. The results of phytochemical screening revealed that alkaloids were absent in all extracts. Hexane extract showed the absence of all the tested phytochemicals while chloroform extract showed the presence of only terpenoids and quinones. Ethylacetate extract showed the presence of all tested phytochemicals except quinones and saponins.Methanol and 50% aqueous methanol ex

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Akhand, Pooja N., Veena Sharma, and Anupam K. Pathak. "Comparative Studies of Phytochemicals Analysis and in vitro Antioxidant Properties of Various Solvent Extracts of Sphaeranthus indicus Collected from three Different Climatic Zones of Central India." Asian Journal of Chemistry 33, no. 9 (2021): 2237–43. http://dx.doi.org/10.14233/ajchem.2021.23413.

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In present study, the total phenolic, flavonoid, tannin contents and the antioxidant activity of various solvent extracts of Sphaeranthus indicus collected from three different regions of central India were assessed. Plants extracts were prepared using Soxhlation method, while the total phenols, flavonoids and tannins were measured by the spectrophotometric method. DPPH, metal chelating, nitric oxide, superoxide oxide scavenging activity and FRAP, reducing power, total antioxidant assays were also evaluated. The highest phenolic contents 268.22 GAE equivalent, flavonoids 441.33 QE equivalents

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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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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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Mahdi, Haroun, and Mohammed Ahmed Manal. "Appropriateness of Anogessus leiocarpus leaves and bark as vegetable tannins traditionally used in leather making in Sudan." GSC Advanced Research and Reviews 14, no. 1 (2023): 007–13. https://doi.org/10.5281/zenodo.7678421.

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Chrome tanning industry is dominated globally owing to its high versatility in quality leather production. However, Environmental impacts of chromium have shifted the interest of present study to chrome-free options. Vegetable tannins have been proven to be environmentally safe producing good quality leather with comparable properties as that of chrome tanned leather. As such, scarcity of vegetable tannin supply demands characterization of non-commercialized sources locally available to feed local tanners. A simple extraction technique was used with different temperature 35, 50, & 85 

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Kurnianto, Afrizal Syifa, Anjasmara Wahyu Wicaksana, Muhammad Prima Putra, Ragil Yuliatmo, and Mohammad Zainal Abidin. "Unveiling the Potential of Secang (Caesalpinia sappan L.) as a Novel Tanning Agent: A Promising Alternative for the Leather Industry." Textile & Leather Review 7 (February 16, 2024): 222–34. http://dx.doi.org/10.31881/tlr.2023.194.

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The exploration of vegetable tanning's natural resources is fascinating as an alternative to basic chromium sulfate for its natural abundance and considerable environmental impact. In this work, an attempt has been made to extract vegetable tannin from Caesalpinia sappan L. bark using water as a solvent with different levels of temperatures and incubation times. The highest yield efficiency was observed at 80 °C for 4 hours. The presence of tannin content and polyphenolic compounds were screened by the phytochemical analysis using Iron (III) chloride (FeCl3), sodium hydroxide (NaOH), and ensur

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Balasundaram, Janarthanam, Dhamotharan R, and Anbkkarasi M. "STUDIES ON PHYTOCHEMICAL SCREENING, TANNINS CONTENT AND ANTIBACTERIAL ACTIVITY FROM LEAF AND CALLUS EXTRACTS OF MEMECYLON UMBELLATUM." Asian Journal of Pharmaceutical and Clinical Research 10, no. 5 (2017): 265. http://dx.doi.org/10.22159/ajpcr.2017.v10i5.15198.

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Objective: This study aims to determine the phytochemical screening, tannins content, and antibacterial activity from leaf and callus extracts of Memecylon umbellatum.Methods: Preliminary screening involved the qualitative methods to detect the presence of terpenoids, flavonoids, phenols, tannins, steroids, quinones, saponins, cardiac glycosides, and alkaloids. Total tannins contents were quantitatively estimated with tannic acid as standard. Different concentrations of ethanolic leaf and callus extracts were tested using the agar disc diffusion technique for the antibacterial activity against

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Dissertations / Theses on the topic "Tannin extract"

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Al, Kindi Amal [Verfasser]. "Influence of quebracho tannin extract and activated charcoal on nutrient intake and digestibility, digesta passage, nitrogen balance, and quality of faecal excreta in goats / Amal Al Kindi." Kassel : Universitätsbibliothek Kassel, 2015. http://d-nb.info/1073893243/34.

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Wischer, Gerald [Verfasser], and Markus [Akademischer Betreuer] Rodehutscord. "Effects of monensin and tannin extract supplementation on methane production and other criteria of rumen fermentation in vitro and in long-term studies with sheep / Gerald Wischer. Betreuer: Markus Rodehutscord." Hohenheim : Kommunikations-, Informations- und Medienzentrum der Universität Hohenheim, 2013. http://d-nb.info/1032243015/34.

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Klug, Tammila Venzke. "Uso de extratos de taninos como sanitizantes em alface minimamente processada." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/183447.

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A sanitização com hipoclorito de sódio é recomendada para espécies hortícolas, porém há uma preocupação sobre uma possível formação a partir deste sanitizante de trihalometanos e ácidos haloacéticos, reconhecidos como compostos cancerígenos. Com base nisto, o objetivo do presente trabalho foi estudar o efeito microbiológico e qualitativo de sanitizantes à base de extratos de taninos de Acacia mearnsii como uso alternativo ao hipoclorito de sódio em alface minimamente processada. Foram conduzidos dois experimentos. No primeiro trabalho definiram-se as concentrações mínimas inibitórias (CMI) dos

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HEJNA, MONIKA. "PLANT-BASED STRATEGIES TO CONTROL THE ZINC AND THE COPPER OUTPUT FROM SWINE LIVESTOCK." Doctoral thesis, Università degli Studi di Milano, 2021. http://hdl.handle.net/2434/821594.

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The current state of agriculture, where demand for safe food is increasing rapidly as a consequence of growing population, raises a number of questions related to the one health approach and sustainable animal production with minimal impact on the environment. Swine production is an important branch of food production where weaning is the most vulnerable phase for piglets, often associated with decrease of growth performance and diarrhoea. The maintenance of gut health is therefore a complex endeavour where nutrition is crucial in order to reduce the intestinal disorders. Antimicrobial resista

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Alves, Tiago Pansard. "AVALIAÇÃO DO USO DE EXTRATO TANÍFERO DE Acacia mearnsii COMO MODULADOR DA FERMENTAÇÃO RUMINAL EM BOVINOS." Universidade Federal de Santa Maria, 2012. http://repositorio.ufsm.br/handle/1/10791.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The effect of levels of Acacia meanrsii tannin extract addition in cattle diet (0, 0.8, 1.6 or 2.4%, dry matter (DM) basis) on rumen fermentation, digestion and N retention was evaluated. The experiment was conducted in a 4 x 4 Latin Square design with four steers (156 ± 33 kg of body weight (BW)) housed in metabolism cages. Diet was 60% oat (Avena strigosa) and 40% concentrate containing soybean meal as the major protein source. Feed was offered in an amount restricted to 2% of BW as such it was not affected by treatments. Tannin

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Tahir, Paridah Md. "Utilisation of mangrove bark extracts in cold-setting wood adhesives." Thesis, University of Aberdeen, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.327020.

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Extraction of mangrove bark with 4.0% aqueous sodium sulfite and 0.4% aqueous sodium carbonate at 100° and 2 hours gives 24-26% yields compared with extraction by water at 70° for 2 hours which gives 21%. The hot water extracts are more acidic (pH 3.6) than is the sulfite extract (pH 5.6); both are reasonably reactive toward formaldehyde (Stiasny number 70.6 using water and 85.4 using aqueous sulfite-carbonate). The <sup>13</sup>C NMR spectra of <I>R. mucronata </I>shows this tannin to have phloroglucinolic A-rings with hydroxy groups at C-5 and C-7 and pyrogallolic B-rings with hydroxy groups

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Ávila, Suélen Capa de. "Impacto da inclusão de extrato tanífero de Acacia mearsnsii na dieta sobre o metabolismo energético em bovinos." Universidade Federal de Santa Maria, 2016. http://repositorio.ufsm.br/handle/1/4377.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The objective of the study is to evaluate the effect of Acacia mearnsii tannin extract on balance of nutrients and efficiency of energy of steers. The experiment was conducted in a Latin Square design, with eight Holstein steers (338 ± 32,2 kg body weight (BW)). The animals have been housed in metabolism cages, fed on a diet composed by 90% corn silage and 10% concentrate at two levels of intake with or without the inclusion of Acacia mearnsii tannin extract. The treatment structure was a 2 × 2 factorial; intake, 1.2 versus 1.8 × N

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Dallastra, Lucélia Janes Hans. "Extrato tanífero de Acacia mearnsii para ovelhas em lactação recebendo dietas com dois níveis de proteína bruta." Universidade do Estado de Santa Catarina, 2015. http://tede.udesc.br/handle/handle/944.

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Made available in DSpace on 2016-12-08T16:24:21Z (GMT). No. of bitstreams: 1 PGCA15MA168.pdf: 311594 bytes, checksum: e09666d73e41b74adb26b60363213c88 (MD5) Previous issue date: 2015-04-24<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Condensed tannins can reduces the ruminal degradation of protein, increasing N-duodenal flow and improving animal performance with lower environmental impacts. The aim of this work was to assess if the supplementation with condensed tannins (CT) extracted from black wattle (Acacia mearnsii) could reduce the N urinary excretion and improve mi

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Moreira, Kíria Karolline Gomes. "Aditivos fitogênicos na terminação de tourinhos nelore confinados." Universidade Federal de Goiás, 2018. http://repositorio.bc.ufg.br/tede/handle/tede/8773.

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Submitted by Liliane Ferreira (ljuvencia30@gmail.com) on 2018-08-08T13:37:44Z No. of bitstreams: 2 Tese - Kíria Karolline Gomes Moreira - 2018.pdf: 845151 bytes, checksum: 2ad2cdb82fbc13144dced7708c515c5b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Approved for entry into archive by Luciana Ferreira (lucgeral@gmail.com) on 2018-08-09T11:50:53Z (GMT) No. of bitstreams: 2 Tese - Kíria Karolline Gomes Moreira - 2018.pdf: 845151 bytes, checksum: 2ad2cdb82fbc13144dced7708c515c5b (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made

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Orlandi, Tiago. "FLUXO DUODENAL DE AMINOÁCIDOS EM BOVINOS ALIMENTADOS COM DIETAS CONTENDO OU NÃO EXTRATO TANÍFERO DE Acacia mearnsii." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/10820.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>This study was conducted to evaluate the effect of including Acacia mearnsii tannin extract in the diet on the flow and amino acid profile in the duodenum of cattle consuming limited amounts of diets containing high degradability protein supplements. Two experiments were conducted in vivo. In trial 1 evaluated the effect of inclusion levels (0, 0.9, 1.8 or 2.7%) of the tannin extract in the diet of four Holstein steers (158 ± 30 kg of body weight (BW )), implanted with cannula in the proximal duodenum and arranged in a randomized 4

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Books on the topic "Tannin extract"

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Vida Rezar and J. Salobir. Effects of tannin-rich sweet chestnut (Castanea sativa mill.) wood extract supplementation on nutrient utilisation and excreta dry matter content in broiler chickens. Verlag Eugen Ulmer, 2014. http://dx.doi.org/10.1399/eps.2014.42.

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Patent of Abraham Steers' extract of tanning from hamlock bark. s.n., 1991.

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Forest products of Canada, 1909: Tan bark and tanning extract used. Govt. Print. Bureau, 1997.

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The World Market for Tanning Extracts of Vegetable Origin and Tannins Including Their Salts, Ethers, Esters, and Other Derivatives: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

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Parker, Philip M. The 2007 Import and Export Market for Tanning Extracts of Vegetable Origin and Tannins Including Their Salts, Ethers, Esters, and Other Derivatives in China. ICON Group International, Inc., 2006.

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Parker, Philip M. The World Market for Tanning Extracts of Vegetable Origin and Tannins Including Their Salts, Ethers, Esters, and Other Derivatives: A 2007 Global Trade Perspective. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Tanning Extracts of Vegetable Origin and Tannins Including Their Salts, Ethers, Esters, and Other Derivatives in India. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Tanning Extracts of Vegetable Origin and Tannins Including Their Salts, Ethers, Esters, and Other Derivatives in United States. ICON Group International, Inc., 2006.

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Parker, Philip M. The 2007 Import and Export Market for Tanning Extracts of Vegetable Origin, Tannins and Derivatives, Coloring Matter of Vegetable or Animal Origin, and Their Preparations in India. ICON Group International, Inc., 2006.

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The World Market for Tanning Extracts of Vegetable Origin, Tannins and Derivatives, Coloring Matter of Vegetable or Animal Origin, and Their Preparations: A 2004 Global Trade Perspective. Icon Group International, Inc., 2005.

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Book chapters on the topic "Tannin extract"

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Ahnert, S., A. Susenbeth, and U. Dickhoefer. "Effect of different dietary levels of Quebracho tannin extract on nitrogen and fiber digestibility and post-ruminal microbial protein flow in heifers." In Energy and protein metabolism and nutrition in sustainable animal production. Wageningen Academic Publishers, 2013. http://dx.doi.org/10.3920/978-90-8686-781-3_6.

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Gómez, Noelia, Sandy Gavilanes, Inés Malo, and Mónica Espadero. "In vitro Evaluation of Antimicrobial Activity from the Methanolic Extracts of Taraxacum officinale and Melissa officinalis on Staphylococcus aureus." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_23.

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Abstract The use of plants has been increasing by the presence of bioactives, which is an opportunity in the creation of products such as medicines, food and cosmetics. Taraxacum officinale (Dandelion) and Melissa officinalis (Toronjil), are cosmopolitan species with great therapeutic potential, traditionally used for their anti-inflammatory, antioxidant and antimicrobial activity. Therefore, this research evaluates the antimicrobial activity of the methanol extracts of Taraxacum officinale and Melissa officinalis on Staphylococcus aureus using in vitro tests. Analyzes of secondary metabolites

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Pacheco, Patricia, Dévora Carrión, Sandy Gavilanes, and Mónica Espadero. "In vitro Antibacterial Activity of Ethanolic and Acetonic Extracts of Curcuma longa Against Propionibacterium acnes (Cutibacterium acnes)." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_27.

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Abstract Throughout history, plants have been indispensable in the development of society due to their high content of bioactive substances, which are used in different industries such as food, pharmaceutical, and cosmetics. Curcuma longa is a perennial species that belongs to the Zingiberaceae family, which is used for therapeutic purposes due to its anti-oxidant, anti-inflammatory and antibacterial properties, among others. This research evaluates the antibacterial activity of ethanolic and acetonic extracts of Curcuma longa against Propionibacterium acnes, recently renamed Cutibacterium acn

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Londonkar, Ramesh, and Maithilee Kesralikar. "In Vitro Anticancer Screening of Methanolic Extract of Stachytarpheta Mutabilis." In Proceedings of the Conference BioSangam 2022: Emerging Trends in Biotechnology (BIOSANGAM 2022). Atlantis Press International BV, 2022. http://dx.doi.org/10.2991/978-94-6463-020-6_19.

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AbstractIn therapeutic plants, phytochemicals are found in abundance. A family of verbena known as vervain (verbenaceae) consists of over 100 genera and nearly 2600 species. Among the Verbenaceae family is Stachytarpheta, a green perennial herb. The species is being examined in this study for its phytochemical, antioxidant, and anti-inflammatory properties. Stachytarpheta mutabilis methanol extracts were studied for their phytochemical screening, antimicrobial, anti-inflammatory, and anticancerous effects in the current study. Phytochemical study revealed the presence of alkaloids, flavonoids,

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Mal, Suvadeep, and Dilipkumar Pal. "Tannins and Polyphenols Extracted from Natural Plants and Their Versatile Application." In Advanced Structured Materials. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-54027-2_21.

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Pepino, Lina, Paulo Brito, Fernando Caldeira Jorge, Rui Pereira Da Costa, M. Helena Gil, and António Portugal. "Comparison of Quantification Methods for the Condensed Tannin Content of Extracts of Pinus Pinaster Bark." In Biorelated Polymers. Springer US, 2001. http://dx.doi.org/10.1007/978-1-4757-3374-7_32.

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Ventura-Sobrevilla, Janeth, Gerardo Gutiérrez-Sánchez, Carl Bergmann, et al. "Glycosylation of Polyphenols in Tannin-Rich Extracts from Euphorbia antisyphilitica, Jatropha dioica, and Larrea tridentata." In Green Chemistry and Biodiversity. Apple Academic Press, 2019. http://dx.doi.org/10.1201/9780429202599-7.

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Didiot, Mylène, Anthony Dumontet, Pierre-Marie Mercier, Julien Trapp, and Pierre-Edouard Wagner. "Chapitre 1. Présentation du site et des recherches." In Défendre Metz à la fin du Moyen Âge, translated by Anne Wilmouth and Céline Sretenovic. Éditions de l’Université de Lorraine, 2017. https://doi.org/10.4000/13nxt.

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La ville de Metz est localisée en Lorraine, dans la vallée de la Moselle, à l’est du Bassin parisien. Son site naturel est bordé par deux rivières, la Moselle et la Seille, qui ont été primordiales pour le développement de la ville depuis la fin de la Protohistoire. Le site est également encadré par deux collines : celle de Sainte-Croix (188 m) au nord et celle dite « de la Citadelle » (187 m). L’environnement de la ville a permis son essor et son approvisionnement en matériaux. Les deux rivières sont poissonneuses et la Seille, navigable jusqu’au xvie siècle, a permis l’acheminement du sel ex

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Shobana, G., N. Agnel Arul John, G. Hariharan, and G. Sridharan. "In Vitro Antioxidant and In Vitro Cytotoxic Potentials of Ancardium occidentale Linn. Against Hep G2 Cell Lines." In Harnessing Medicinal Plants in Cancer Prevention and Treatment. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-1646-7.ch013.

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Cancer is a disease in which there is an uncontrolled multiplication and spread, within the body, of abnormal forms of the body's own cells. The Ethanol extract (EEAO) of Anacardium occidentale Linn was used for In-Vitro anticancer screening against HepG2 cell lines.Preliminary phytochemical analysis of the test drug was carried out and it revealed the presence of Tannin, Terpene, Quinone, Coumarin, Phenol. The results revealed that the extracts have significant Antioxidant potentials. In- vitro cytrotoxic assay such as tryphan blue dye exclusion, MTT and LDH releasing assays were carried out

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Mandal, Rupam. "Account of Aloe barbadensis: Emphasizing Phytochemistry and Antibacterial Potential in Darjeeling Himalayas." In Progress in Chemical and Biological Science. Lincoln University College, Malaysia, 2023. http://dx.doi.org/10.31674/book.2023pcbs001.

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Plants have been widely used throughout human history as a basis for medical treatment. Ethnobotany, the study of traditional human uses of plants, is recognized as an effective way to discover future medicines. The Darjeeling Himalayas are home to a huge number of medicinal plants used by the local people. Aloe barbadensis is a plant that grows in this area and has a long history of being used as a medicinal plant with diverse therapeutic applications. The study was conducted to determine the phytochemical properties of the leaves of the plant. Flavonoidsce or absence of alkaloids, tannin, gl

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Conference papers on the topic "Tannin extract"

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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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Zelinka, S. L., and D. S. Stone. "Advances in Corrosion Testing of Metals in Contact with Treated Wood." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10082.

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Abstract A January 2004 change in the regulation of wood preservatives used in the U.S. has increased the use of newer wood preservatives, such as alkaline copper quaternary (ACQ) and copper azole (CuAz). These preservatives contain high amounts of cupric ions, which may be reduced to copper metal at the expense of less noble steel and galvanized fasteners in the wood. Preliminary testing using extreme accelerating conditions suggested newer preservatives are more corrosive than the previously used chromated copper arsenate (CCA), although it is unclear how corrosion rates measured in these ex

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Amjad, Zahid, and Amannie Kweik. "Comparative Performance of Natural, Hybrid, and Synthetic Polymers Containing Different Functional Groups as Strontium Sulfate Scale Inhibitors." In CORROSION 2019. NACE International, 2019. https://doi.org/10.5006/c2019-12880.

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Abstract The mitigation of mineral scale continues to pose serious challenge in the efficient operation of many industrial systems. Recently, due to environmental issues relating to eutrophication and strict chemicals discharge regulations have challenged the industry to develop new environmentally friendly solutions to corrosion and scale control. Among the natural additives tested include: lignosulfonate, green tea extract, humic, tannic, and fluvic acids. The inhibitory activity of biodegradable polymer such as poly(aspartic acid), inulin-based hybrid polymers containing carboxyl (-COOH) an

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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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Griyanitasari, Gresy, Emiliana Kasmudjiastuti, Ragil Yuliatmo, and Mohammad Zainal Abidin. "Evaluation of combination tanning and natural finishing on sheep leather with Uncaria Gambir Roxb extract." 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.ii.11.

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The discovery of natural local resources for tanning and coloring agents are growing dramatically to sustain a cleaner leather manufacturing technology. Gambir (Uncaria gambir Roxb) has been found potential as tannin and dyestuffs for leather and textile industry. Therefore, to explore these issues, a combination tanning and finishing system were evaluated to observe the efficiency of this extract on leather processing. A combination tanning system based on chrome or glutaraldehyde – gambir and followed by gambir as coloring agent with different concentrations (100 - 200 parts/L) have been app

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Wiyono, Tri, Arief Nurrochmad, Sitarina Widyarini, and Nanang Fakhrudin. "The tannin content and anti platelet-aggregation activity of Cinnamomum sintoc extract." In THE 8TH ANNUAL BASIC SCIENCE INTERNATIONAL CONFERENCE: Coverage of Basic Sciences toward the World’s Sustainability Challanges. Author(s), 2018. http://dx.doi.org/10.1063/1.5062741.

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Wu, Jiacheng, Xi Ding, Wei Liao, and Jin Wei Zhang. "The Influence of Microwave Irradiation on the Colloidal Properties of Vegetable Tannin Extract Solutions." In The 6th International Conference on Advanced Materials and Systems. INCDTP - Division: Leather and Footwear Research Institute, Bucharest, RO, 2016. http://dx.doi.org/10.24264/icams-2016.i.28.

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Susetyarini, Eko, Endrik Nurrohman, and Ahmad Fauzi. "Spermatogenic cells of New Zealand rabbit after the administration of beluntas leaf tannin extract (Pluchea indica)." In THE 4TH INTERNATIONAL CONFERENCE ON LIFE SCIENCE AND TECHNOLOGY (ICoLiST). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0111874.

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Hernawati, Agestya, and Suyatno Sutoyo. "Characteristics Of Adhesive Firmness Of Tannin Resorcinol Formaldehyde From Johar Sawdust Extract As Adhesive On Lamina Wood." In Seminar Nasional Kimia - National Seminar on Chemistry (SNK 2018). Atlantis Press, 2018. http://dx.doi.org/10.2991/snk-18.2018.27.

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"Inhibitory Potential of the Rambutan Rind Extract and Tannin against Alpha-Amylase and Alpha-Glucosidase Activities in vitro." In International Conference on Food, Biological and Medical Sciences. International Institute of Chemical, Biological & Environmental Engineering, 2014. http://dx.doi.org/10.15242/iicbe.c0114582.

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Reports on the topic "Tannin extract"

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ยงวณิชย์, ทิฆัมพร, та วรวุฒิ จุฬาลักษณานุกูล. ผลทางอัลลีโลพาธิกของวัชพืชธูปฤาษีที่มีต่อ การเจริญเติบโตของวัชพืชไมยราบยักษ์ : รายงานฉบับสมบูรณ์. จุฬาลงกรณ์มหาวิทยาลัย, 1998. https://doi.org/10.58837/chula.res.1998.30.

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The flowers of Tyoha augustifolia were extracted with 70% methanol and distilled water in comparison. When the aqueous extracts obtained from both methanol and distilled water were tested for their effect on germination of the seeds of Mimosa pigra, the results showed inhibition by both extracts. Evidences from chemical tests and absorption spectra suggested presence of condensed tannins in both aqueous extracts. The addition of 10% bovine serum albumin to the aqueous extracts from both water and 70% methanol resulted in light brown precipitates. When the seeds of Mimosa pigra were grown in th

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Lance, Richard, and Xin Guan. Variation in inhibitor effects on qPCR assays and implications for eDNA surveys. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41740.

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Aquatic environmental DNA (eDNA) surveys are sometimes impacted by polymerase chain reaction (PCR) inhibitors. We tested varying concentrations of different inhibitors (humic, phytic, and tannic acids; crude leaf extracts) for impacts on quantitative PCR (qPCR) assays designed for eDNA surveys of bighead and silver carp (Hypophthalmichthys nobilis and Hypophthalmichthys molitrix). We also tested for inhibition by high concentrations of exogenous DNA, hypothesizing that DNA from increasingly closely related species would be increasingly inhibitory. All tested inhibitors impacted qPCR, though on

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