Results 11 to 20 of about 2,725 (220)

Chemical Derivatization of Commercially Available Condensed and Hydrolyzable Tannins [PDF]

open access: yesACS Sustainable Chemistry & Engineering, 2021
Novel valorization routes for tannins were opened by the development of a simple, straightforward, robust, and flexible approach to the selective functionalization of condensed and hydrolyzable tannins. Irrespective of the different degrees of polymerization, different commercial tannins were efficiently functionalized by the generation of an ether ...
Lili Zhen   +3 more
openaire   +7 more sources

Salivary proline-rich protein may reduce tannin-iron chelation: a systematic narrative review [PDF]

open access: yesNutrition & Metabolism, 2017
Background Tannins are often cited for antinutritional effects, including chelation of non-heme iron. Despite this, studies exploring non-heme iron bioavailability inhibition with long-term consumption have reported mixed results.
Nicole M. Delimont   +3 more
doaj   +2 more sources

Comparing and Examining the Tannin Content of Potato Peel with Four Different Solvents [PDF]

open access: yesJournal of Agricultural Machinery
IntroductionTannins are a type of phenolic compound usually found in plants, with high molecular weights typically ranging from 500 to more than 3000 Da and even up to 20000 Da. The chemical structure of tannins is very diverse and varied.
F. Mortazavi   +2 more
doaj   +3 more sources

New Hydrolyzable Tannin with Potent Antioxidant and α-Glucosidase Inhibitory Activity from Black Tea Produced from Camellia taliensis [PDF]

open access: yesFoods, 2023
Camellia taliensis (W. W. Smith) Melchior, belonging to the genus Camellia sect. Thea., is mainly distributed from northern Myanmar to western and southwestern Yunnan province of China, and its leaves have been used to make various teas by the locals of ...
Min Chen   +7 more
doaj   +2 more sources

Hydrolyzable vs. Condensed Wood Tannins for Bio-based Antioxidant Coatings: Superior Properties of Quebracho Tannins [PDF]

open access: yesAntioxidants, 2020
Tannins have always been the subject of great interest for their countless properties, first of all their ability to produce functional coatings on a variety of materials.
Federica Moccia   +6 more
doaj   +4 more sources

Hydrolyzable tannins from Balanophora polyandra [PDF]

open access: yesActa Pharmaceutica Sinica B, 2013
AbstractThis study reports an investigation of the chemical constituents of Balanophora polyandra Griff. Fifteen compounds were isolated by column chromatography on silica gel, Toyo-pearl HW-40C, Sephadex LH-20 and by HPLC. Their structures were elucidated as 1,4-di-O-galloyl-2-O-[(E)-p-coumaroyl]-β-D-glucopyranose (1), 1-O-galloyl-β-D-pyranglucose (2),
Yangai Wang   +6 more
openaire   +3 more sources

Condensed and Hydrolyzable Tannins for Reducing Methane and Nitrous Oxide Emissions in Dairy Manure—A Laboratory Incubation Study [PDF]

open access: yesAnimals, 2022
The objectives of this study were to (1) examine the effects of plant condensed (CT) and hydrolyzable tannin (HT) extracts on CH4 and N2O emissions; (2) identify the reactions responsible for manure-derived GHG emissions, and (3) examine accompanying ...
Byeng Ryel Min   +5 more
doaj   +2 more sources

Methyl jasmonate elicits distinctive hydrolyzable tannin, flavonoid, and phyto-oxylipin responses in pomegranate (Punica granatum L.) leaves. [PDF]

open access: yesPlanta, 2021
Main conclusionTranscriptome and biochemical analyses suggested that, while suppression of multiple flavonoids and anthocyanins occurs at least partially at the transcriptional level, increased biosynthesis of non-jasmonate phyto-oxylipins is likely ...
Chang L, Wu S, Tian L.
europepmc   +3 more sources

Development and characterization of novel tannin-modified konjac glucomannan hydrogels with optimized crosslinking features [PDF]

open access: yesCarbohydrate Polymer Technologies and Applications
Konjac glucomannan (KGM) is a non-toxic, biodegradable polysaccharide known for its excellent gel-forming properties and high water retention. This study presents a novel tannin-enhanced KGM hydrogel, tailored for controlled solvent release and improved ...
Eleonora Verni   +8 more
doaj   +2 more sources

Effects of hydrolyzable tannin with or without condensed tannin on methane emissions, nitrogen use, and performance of beef cattle fed a high-forage diet. [PDF]

open access: yesJ Anim Sci, 2018
Sustainability of animal agriculture requires efficient use of energy and nitrogen (N) by ruminants fed high-forage diets. Thus, there is a need to decrease methane (CH4) emissions and prevent excessive N release into the environment.
Aboagye IA   +5 more
europepmc   +3 more sources

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