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Showing 1 to 20 of 34 for “"Condensed Tannins"”.
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The effect of condensed tannins on goats’ body weight
Tannins are one of the most common plant secondary compounds. Amongst the tannins are condensed tannins (CT), which occur nearly in every plant species browsed by goats. Condensed tannins have a potential to bind proteins, reduce the feed intake and consequently reduce the body weight gain of …
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The Effect of Condensed Tannins on Bacterial Diversity and Metabolism in the Intestinal Tract
… know the mechanism of tannin-resistance. Wattle condensed tannins were determined to be toxic to Escherichia coli in aerobic medium primarily because they generate hydrogen peroxide. The oxidative stress response helps E. coli strains to overcome this inhibitory effect.
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In vitro and in vivo effects of sorghum condensed tannins encapsulated in kafirin microparticles on digestive amylases
… hyperglycaemia. Polyphenols like sorghum condensed tannins (SCT) inhibit α-amylase and α-glucosidase enzymes. However, orally administered SCT may have poor inhibitory action against amylases, due to non-specific protein binding. Research is required to determine how to effectively deliver …
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Sorghum phenolic extracts : their storage stability and antioxidant activity in sunflower oil
… Malawian sorghums, Phatafuli, (a brown-coloured condensed tannin variety) and Shabalala, (a white-coloured condensed tannin-free variety) were analysed for their content of total phenols, condensed tannins and antioxidant activities. The effect of oxidizing conditions during extraction, and the …
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Effects of tannins on protein digestibility and detoxification activity in gray squirrels (Sciurus carolinensis)
… were fed acorns or diets containing commercial tannins to determine the effects of tannins on digestion and detoxification (glucuronidation) activity. In the Acorn experiment, Northern red oak acorns (Quercus rubra), white oak acorns (Q. alba), or rat chow were fed to squirrels. Levels of …
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Use of Nutrition and Precision Technology to Improve Health, Performance, and Alleviate Stress of Beef Cattle
… in feed efficiency; 3) Use of phytotherapy (condensed tannins) to reduce protozoa parasites load and prevent coccidiosis in peripartum beef heifers and their newborn calves. Daily supplementation of condensed tannins reduced coccidia load in heifers and newborn calves, although this reduction …
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Breeding for Bioactive Compounds in Vigna Unguiculata L. (WALP.)
… bioactive compounds (phenols, antioxidants, condensed tannins, flavonoids and anthocyanins) in Vigna unguiculata, a staple legume grain crop. Approaches included screening of genetic variation in polyphenolic compositions to identify potential varieties and phenotypes, evaluating the impact …
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Enzymatic polymerisation in situ of depolymerised mimosa tannin applied to stabilisation of collagen
Vegetable tannins used in tanning of hides and skins are limited to surface reactions by their large molecular weights. The molecular weight reduces penetration into the skin and lowers the thermal stability or tanning effect. Investigation into the utilisation of small phenolic compounds such as …
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Exploring the chemical properties of polyphenols in cold-hardy grape cultivars
… composition, including a low concentration of condensed tannins and high concentration of anthocyanins. Such attributes can make the production of well-balanced red wine a challenge, necessitating adjustments to manage flavors, acidity and astringency, in the finished wine. The main goal of …
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Quantifying Greenhouse Gas Emissions and Ammonia Volatilization from Soil Amended with Excreta from Ruminants Fed Alternative Forage-based Diets
<p>Forage-based ruminant diets supplemented with condensed tannins or polyphenolic-containing legumes may alter nitrogen (N) metabolism in the animal and reduce gas emissions from soil receiving excreta. The objective of the study was to determine if soil receiving urine or manure from sheep fed …
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Dry milling characteristics and polyphenolic contents of adapted colored corn varieties and polyphenol extraction by combining deep eutectic solvents and ultrasound
… such as anthocyanins, flavonoids, flavanols, tannins and phenolic acids are concentrated in corn pericarp which can be separated and selectively processed for their economic recovery. The corn endosperm, containing most of the kernel starch and proteins and of prime interest to the processing …
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Physicochemical characterization of ten blackcurrant (Ribes nigrum) cultivars, their bioactivity related to type 2 diabetes and inflammation, and chemical changes after lactic acid fermentation
… polyphenols (TP), total anthocyanins (TA), total condensed tannins (TT), and quantification of the four major anthocyanins were completed. Antioxidant capacity and inhibition of markers of type two diabetes and inflammation were also analyzed, which included dipeptidyl peptidase-IV, α-amylase, …
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Characterization of blackcurrant berries (Ribes nigrum) and the evaluation of their bioactive compounds after ultrasound-assisted water extractions, enzymatic treatments, and fermentation
… anthocyanins (TA), total polyphenols (TP), total condensed tannins (TT), and HPLC quantification after 2, 4, 6 h sonication extraction. For LC-ESI-MS analyses, BC samples were extracted with methanol-HCl, sonicated for 1 h, kept overnight at 4 ºC; aliquots were filtered and analyzed. The highest …
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Antibacterial, antioxidant and phytochemical investigation of Acacia Arenaria, Aloe Esculenta and Pechuel-Loeschea Leubnitziae
… extract obtained in the extracts as well as condensed tannins ranging from 0.1 ± 0.0 to 72.6 ± 0.0 mg of TAC/g extract. Qualitative phytochemical analysis showed the presence of steroids, terpenoids, saponins, flavonoids, anthraquinones, coumarins, alkaloids, phenols and tannins. The results …
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Interactions and epidemiology of nematode worm control in livestock
… negative direct interaction being found between condensed tannins and Duddingtonia flagrans (chapter 4). The GLOWORM-FL model was adapted to predict the larval burdens for plant and D. flagrans in various European regions (chapter 5), this study found there to be clear differences in how combined …
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Effects of nitrogen and water on growth, photosynthesis, and leaf properties of deciduous tree species with consequences for gypsy moth herbivory
… water content, nitrogen concentration, and sugar/condensed tannin ratios than yellow birch. Gray birch also had lower C/N ratios and fewer condensed tannins than yellow birch. In this way, gray birch was a more nutritive food source for gypsy moth and larvae had higher growth rates when feeding on …
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Basic studies of the cross-linking reaction of collagen with oxazolidine and plant polyphenols
To elucidate the reaction between collagen, condensed tannins and oxazolidine, two prodeiphinidin tannins have been studied: extracts from pecan nutshell pith and myrica esculenta bark. The tannin chemistry study showed pecan tannins are copolymers of catechin and gallocatechin with a ratio 1:6 and …
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