Analysis of commercial proanthocyanidins. Part 3: The chemical composition of wattle (Acacia mearnsii) bark extract

Venter, Pieter; Senekal, Nadine D.; Kemp, Gabré; Amra-Jordaan, Maryam; Khan, P. Salman; Bonnet, Susan L.; Westhuizen, Jan H. van der

doi:10.1016/j.phytochem.2012.07.012

Cited by 65 publications

(48 citation statements)

References 33 publications

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“…The most important yield of cyanidin was obtained with ethanol followed the yield obtained with methanol and finally the yield obtained with water. These differences can be due to the hydroxyl groups which improve the tannins polycondensation and consequently, the amount of tannin dimmers and trimmers extracted from the bark of A. mollissima is large (Venter et al, 2012). The results of this study show that the choice of the solvent used depends on the extraction method and tannins types desired, condensed or hydrolysable.…”

Section: Effect Of Solvent On Quality Extraction Typementioning

confidence: 92%

Comparison of the impact of different extraction methods on polyphenols yields and tannins extracted from Moroccan Acacia mollissima barks

Rhazi

Oumam

Hannache

et al. 2015

Industrial Crops and Products

104

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Section: Effect Of Solvent On Quality Extraction Typementioning

confidence: 92%

Comparison of the impact of different extraction methods on polyphenols yields and tannins extracted from Moroccan Acacia mollissima barks

Rhazi

Oumam

Hannache

et al. 2015

Industrial Crops and Products

104

View full text Add to dashboard Cite

“…Highest cyanidin content was obtained with water followed the content obtained with methanol, ethanol and finally the content obtained with ethyl acetate. These differences can be due to the hydroxyl groups which improve the tannins polycondensation and consequently, the amount of tannin dimmers and trimmers extracted from the bark of A. mollissima is large (Venter et al, 2012). Highest hydrolysable tannins were obtained using ethyl acetate followed by ethanol.…”

Section: Effect Of Solvent Naturementioning

confidence: 99%

Green extraction process of tannins obtained from Moroccan Acacia mollissima barks by microwave: Modeling and optimization of the process using the response surface methodology RSM

Rhazi

Hannache

Oumam

et al. 2019

Arabian Journal of Chemistry

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The effect of extraction conditions on polyphenols contents and condensed tannins by microwave-assisted extraction (MAE) was studied for the first time to our knowledge. Moroccan barks of Acacia mollissima was used to extract phenolic compounds. The variables studied are the following: power extraction, time extraction and solvent nature. Five powers extraction were tested: 150 W, 250 W, 300 W, 450 W and 600 W. A significant effect of power extraction on the extractable nature was proved by ANOVA and Student test. The yields were also affected by time extraction. Different solvent (water, ethanol, methanol and ethyl acetate) were tested to evaluate the best extraction solvent according to the extractable nature. Highest polyphenols contents were obtained with methanol. The proportion of this solvent, time extraction and power extraction were optimized using the response surface methodology (RSM). A face-centered composite design (FCCD) was applied to evaluate the effects of these variables on the polyphenols and condensed tannins contents. For each experiment, the extraction yield, the total polyphenolic contents and

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“…Condensed tannins or proanthocyanidins are polyphenolic compounds found in forage legumes, trees, and shrubs, with the property of forming hydrogen bonds with proteins and acting as antioxidant (Patra & Saxena, 2010;Venter et al, 2012). Feeding tannins can promote protein degradation and improve the flow of metabolizable amino acids to the small intestine (Min, Barry, Attwood, & McNabb, 2003).…”

Section: Introductionmentioning

confidence: 99%

Physicochemical Quality, Fatty Acid Composition, and Sensory Analysis of Nellore Steers Meat Fed with Inclusion of Condensed Tannin in the Diet

Gesteira

Oliveira

Silva

et al. 2018

Journal of Food Science

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Agriculture byproducts plays an important part in the diet of ruminant animals and consequently on food chain and has implications for the composition and quality of the livestock products (milk, meat, and eggs) that people consume. Feeding tannin to steers increases the amount of unsaturated fatty acids and meat tenderness, with a concomitant reduction on saturated fatty acids and the atherogenicity index in meat. Thus, we recommend adding tannin to steer diets to reduce the risk factors for cardiovascular diseases in red meat for human consumption.

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Analysis of commercial proanthocyanidins. Part 3: The chemical composition of wattle (Acacia mearnsii) bark extract

Cited by 65 publications

References 33 publications

Comparison of the impact of different extraction methods on polyphenols yields and tannins extracted from Moroccan Acacia mollissima barks

Comparison of the impact of different extraction methods on polyphenols yields and tannins extracted from Moroccan Acacia mollissima barks

Green extraction process of tannins obtained from Moroccan Acacia mollissima barks by microwave: Modeling and optimization of the process using the response surface methodology RSM

Physicochemical Quality, Fatty Acid Composition, and Sensory Analysis of Nellore Steers Meat Fed with Inclusion of Condensed Tannin in the Diet

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