Antioxidant Activity of Tannin Components from <i>Vaccinium vitis</i>-idaea L.

Ho, Kuen‐Yao; Huang, Jiun-Chi; Tsai, Chi‐Cheng; Lin, Ta‐Chen; Hsu, Yung−Fu; Lin, Chih‐Hsueh

doi:10.1211/0022357991773410

Cited by 85 publications

(66 citation statements)

References 27 publications

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“…The phenolic compounds which have been reported to scavenge DPPH include flavonoids, anthraquinones, anthocyanidins, xanthones, and tannins. They also scavenged superoxide and hydroxyl radical by single electron transfer (Ho et al, 1999;Choi et al, 2002). Extracts from T. chebula gall prepared by all processes exhibited higher DPPH radical scavenging activity than those of other plants.…”

Section: Resultsmentioning

confidence: 96%

In vitroanti-aging activities ofTerminalia chebulagall extract

Manosroi¹,

Jantrawut²,

Akihisa³

et al. 2010

Pharmaceutical Biology

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Section: Resultsmentioning

confidence: 96%

In vitroanti-aging activities ofTerminalia chebulagall extract

Manosroi¹,

Jantrawut²,

Akihisa³

et al. 2010

Pharmaceutical Biology

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“…Based on the polarity of solvents and the phytochemical screening (table 2), the observed activity displays a wide variation in correlation with the polarity of extract solvents used, and the activity was found to be proportional to the polarity of the solvents, as well as the tannin concentration which was well known for the antimicrobial activity [19][20][21][22][23][24][25]. This may be attributed to the fact that the chemical constituents responsible for the antimicrobial activity are of high polarity, the main of such compounds are tannins.…”

Section: Discussionmentioning

confidence: 99%

Phytochemical Screening and Antimicrobial Activity of Thuja Occidentalis Seeds Extracts Against the Isolated Common Skin Infecting Microorganisms

Eltayeb

Hamid

2017

Int J Pharm Pharm Sci

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Objective: This study represents the first attempt to investigate the antimicrobial activity of Thuja occidentalis seeds extracts against the isolated skin infecting microorganisms. Methods:T. occidentalis seeds were powdered and extracted continuously by Soxhlet apparatus using 96% ethanol to obtain the total crude ethanolic extract. The extracts with increasing polarity were successively prepared with petroleum ether, chloroform, ethyl acetate, and methanol using the Soxhlet apparatus.The extracts were screened for their phytochemical constituents. Their antimicrobial activity against standards microorganism and the isolated skin infecting microorganisms was evaluated using the agar diffusion method. Results:The result revealed the presence of flavonoids, alkaloids, terpenoids, tannins and cardiac glycosides. The antimicrobial activity result showed that Escherichia coli, Pseudomonas aeroginosa, Staphylococcus aureus, Bacillus subtilis and Candida albicans were found to be sensitive to the extracts of T. occidentalis seeds with inhibition zones range between 20±0.57-12±1.25 mm. The isolated skin infecting microorganisms; Staphylococcus aureus and Staphylococcus epidermidis were found to be highly susceptible to the extracts of T. occidentalis seeds with inhibition zones of 28±1.02-22±0.45 mm and minimum inhibitory concentration (MIC) values of 6.25 mg/ml. Conclusion:From the results it concludes, T. occidentalis seeds extracts had a considerable level of antimicrobial activity. They are more effective towards gram-positive than gram-negative bacteria. Hence, the active principles present in the extracts are particularly powerful effective against the skin infected isolated bacteria. In conclusion, there is a proportional increasing in the antimicrobial activity with increase of the solvents polarity. This may attribute to the fact that the chemical constituents responsible for the antimicrobial activity are of high polarity, such as tannins.

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“…Another hydrolysable tannins, punicalagin present in some Ethiopian medicinal plants was active against Mycobacterium tuberculosis strains (Asres et al, 2001). Tannins from Vaccinium vitis-idaea could be used for treatment of periodontal diseases since they have antimicrobial activity against Porphyromonas gingivalis and Prevotella intermedia (Ho et al, 2001). Other plant extracts rich in tannins that have antibacterial effects are bearberry and cowberry, against Helicobactor pylori (Annuk et al, 1999) and Syzygium jambos, against Styaphyloccus aureus and Yersinia enterocolitica (Djipa et al, 2000).…”

Section: Plants Containing Tanninsmentioning

confidence: 99%

Bioactivity of phytochemicals in some lesser-known plants and their effects and potential applications in livestock and aquaculture production systems

Makkar

Francis

Becker

2007

Animal

378

214

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Livestock and aquaculture production is under political and social pressure, especially in the European Union (EU), to decrease pollution and environmental damage arising due to animal agriculture. The EU has banned the use of antibiotics and other chemicals, which have been shown to be effective in promoting growth and reducing environment pollutants because of the risk caused to humans by chemical residues in food and by antibiotic resistance being passed on to human pathogens. As a result of this, scientists have intensified efforts in exploiting plants, plant extracts or natural plant compounds as potential natural alternatives for enhancing the livestock productivity. This paper discusses work on the effects of various phytochemicals and plant secondary metabolites in ruminant and fish species. The focus is on (i) plants such as Ananas comosus (pine apple), Momordica charantia (bitter gourd) and Azadirachta indica (neem) containing anthelmintic compounds and for their use for controlling internal parasites; (ii) plants containing polyphenols and their applications for protecting proteins from degradation in the rumen, increasing efficiency of microbial protein synthesis in rumen and decreasing methane emission; for using as antioxidants, antibacterial and antihelmintic agents; and for changing meat colour and for increasing n-3 fatty acids and conjugated linoleic acid in meat; (iii) saponin-rich plants such as quillaja, yucca and Sapindus saponaria for increasing the efficiency of rumen fermentation, decreasing methane emission and enhancing growth; for producing desired nutritional attributes such as lowering of cholesterol in monogastric animals; for increasing growth of fish (common carp and Nile tilapia) and for changing male to female ratio in tilapia; and for use as molluscicidal agents; (iv) Moringa oleifera leaves as a source of plant growth factor(s), antioxidants, beta-carotene, vitamin C, and various glucosinolates and their degraded products for possible use as antibacterial, antioxidant, anticarcinogenic and antipest agents; (v) Jatropha curcas toxic variety with high levels of various phytochemicals such as trypsin inhibitor, lectin, phytate and phorbol esters in seeds limiting the use of seed meal in fish and livestock diets; and the use of phorbol esters as bio-pesticidal agent; and (vi) lesser-known legumes such as Entada phaseoloides seeds containing high levels of trypsin inhibitor and saponins, Sesbania aculeate seeds rich in non-starch polysaccharides and Mucuna pruriens var. utilis seeds rich in L-3,4-dihydroxyphenylalanine and their potential as fish feed; Cassia fistula seeds as a source of antioxidants; and the use of Canavalia ensiformis, C. gladiata and C. virosa seeds containing high levels of trypsin inhinitor, lectins and canavanine. The paper also presents some challenges and future areas of work in this field.

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Antioxidant Activity of Tannin Components from Vaccinium vitis-idaea L.

Cited by 85 publications

References 27 publications

In vitroanti-aging activities ofTerminalia chebulagall extract

In vitroanti-aging activities ofTerminalia chebulagall extract

Phytochemical Screening and Antimicrobial Activity of Thuja Occidentalis Seeds Extracts Against the Isolated Common Skin Infecting Microorganisms

Bioactivity of phytochemicals in some lesser-known plants and their effects and potential applications in livestock and aquaculture production systems

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