Antioxidant activity and metabolite profile of quercetin in vitamin-E-depleted rats

Ameho, Clement K.; Chen, C.-Y. Oliver; Smith, Donald E.; Sánchez‐Moreno, Concepción; Milbury, Paul E.; Blumberg, Jeffrey B.

doi:10.1016/j.jnutbio.2007.06.004

Cited by 26 publications

(26 citation statements)

References 53 publications

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“…. In contrast, other studies showed contradictory results (Ameho et al, 2008;Jang et al, 2010;Luehring et al, 2011). It was considered that experiments were about supplementation of quercetin to rats, chickens and pigs that appeared effective to antioxidant ability.…”

Section: Antioxidant Activity and Volatile Basic Nitrogen Contentmentioning

confidence: 99%

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Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

Kang¹,

Kim²,

Jang³

et al. 2012

CNU Journal of Agricultural Science

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: This study was carried out to investigate the effects of dietary supplementation of quercetin (Kocetin TM , QR)on antioxidative activity and meat quality of beef cattle (Holstein-Friesian). Beef cattle were divided into 3 groups; dietary supplementation of QR at 21 (n=4) and 42 ppm (n=3), and non-supplemented control (n=4). The QR comprised of 10% of quercetin. After slaughtering the beef cattle, loins were obtained and analyzed. Dietary supplementation of QR at 42 ppm showed significantly higher final pH of loin but did not affect the water holding capacity, drip loss, cooking loss, surface color, total phenolics content, 1,1-diphenyl-2-picrylhydrazyl radical scavenging activity. Dietary QR showed no difference in both 2-thiobarbituric acid reactive substances and volatile basic nitrogen values. Textural characteristic results also showed no difference, except for cohesiveness. Cohesiveness was significantly higher in loin from beef cattle treated by dietary QR at 42 ppm when compared to control. Results suggest that dietary QR, which has only 10% of quercetin is not sufficient to have positive biochemical effects on beef meat quality.

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Section: Antioxidant Activity and Volatile Basic Nitrogen Contentmentioning

confidence: 99%

“…Kang et al (2011) also studied the effect of dietary quercetin of Hanwoo. Others have also reported using rats and pigs (Ameho et al, 2008;de Boer et al, 2005;Luehring et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

Kang¹,

Kim²,

Jang³

et al. 2012

CNU Journal of Agricultural Science

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“…Due to their polyphenolic nature, flavonoids (found in abundance in plants) have antioxidant effects which vary according to their nature and quantity. Although their structure is close Antioxidant requirements and exerciseto a-tocopherol, flavonoids seem to have more of a synergistic mode of action with vitamins E and C than a sparing effect in the case of deficit in vitamin E (48,49) . Flavonoids provide a protection against peroxynitrite effects by 'scavenging' its two precursors, NO and the superoxide anion (50) .…”

Section: Flavonoidsmentioning

confidence: 99%

Does physical exercise modify antioxidant requirements?

Margaritis

Rousseau

2008

Nutr. Res. Rev.

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Physical training is known to induce a biochemical adaptive response which might require an increase in the ingestion and/or the absorption of micronutrients. A question that is still being raised is whether acute or chronic exercise modifies antioxidant requirements. First, the present review brings to light the most crucial studies on the topic. Second, it interprets the established relationships between antioxidant micronutrient intakes and the adaptive response of antioxidant systems. Finally, it exposes the major questions connected with antioxidant micronutrient requirements for athletes. To this effect, the training-load interaction with nutrition is taken into account. As oxidative stress cannot be avoided, the imbalance between oxidants and antioxidants can be alleviated to minimise oxidative damage and outcomes. There is growing evidence that one specific antioxidant cannot by itself prevent oxidative stress-induced damage, as direct adverse effects of supplementation are attributed to undesirable synergic effects. Other effects can be supposed that limit the endogenous adaptive effect of training. High doses of antioxidant supplements can minimise the effects of radical oxygen species themselves or generate pro-oxidant effects. Effects are only exhibited when nutritional status is deficient. There are no convincing effects of supplementation in well-trained athletes. Risk/benefit analysis emerges on evidence for an unknown risk of supranutritional intakes, a supposed impairment of adaptive effects and a still unknown long-term risk. Appropriate status can be achieved by a diversified and balanced diet, adapted to specific needs, by awareness of high-density food intakes (avoiding products containing a low density of micronutrients).

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“…Similarly, dietary supplementary of quercetin to goats did not show the effect on lipid oxidation in goat meat . In contrast, other studies using rats, chickens, and pigs showed the effect of dietary quercetin on suppressing lipid oxidation (Ameho et al, 2008;Jang et al, 2010;Luehring et al, 2011). This difference in results may be due to difference in structure of the digestive system and the amount of feeding quercetin because of the unique role of the rumen volatile fatty acids (VFA) in ruminants.…”

Section: Antioxidant Activity and Volatile Basic Nitrogen Contentmentioning

confidence: 94%

“…Cho et al (2010) demonstrated the effect of dietary quercetin on meat quality of goat. Also, other studies were done with rats and pigs (Ameho et al, 2008;de Boer et al, 2005;Luehring et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Effect of Dietary Kocetin^TMon Meat Quality of Hanwoo Loin

Kang

Kim²,

Lee³

et al. 2011

Journal of Animal Science and Technology

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Antioxidant activity and metabolite profile of quercetin in vitamin-E-depleted rats

Cited by 26 publications

References 53 publications

Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

Does physical exercise modify antioxidant requirements?

Effect of Dietary Kocetin^TMon Meat Quality of Hanwoo Loin

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Antioxidant activity and metabolite profile of quercetin in vitamin-E-depleted rats

Cited by 26 publications

References 53 publications

Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

Effect of dietary supplementation of quercetin on antioxidant activity and meat quality of beef cattle

Does physical exercise modify antioxidant requirements?

Effect of Dietary KocetinTMon Meat Quality of Hanwoo Loin

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Effect of Dietary Kocetin^TMon Meat Quality of Hanwoo Loin