in this study antioxidant activity of the red algae (hypnea hamulosa) was investigated in the invitro condition. the measurement included total phenolic content, ferric reducing power, dpph radical scavenging activity and total antioxidant activity. seaweed samples with the ratio of 1:20 (algae: solvent) were extracted using conventional solvent extraction method for 24 hours. the applied solve...

The present study was carried out to evaluate phytochemicals of pods of Leucaena leucocephala. The phytochemical analysis was performed using 50% ethanolic extracts of pods powder of Leucaena leucocephala. Quantitative analysis of phytochemicals like phenols, flavonoids and tannins was done. Phytochemical analysis revealed the presence of alkaloids, flavonoids, phenols, tannins, saponins, carbo...

conclusions in the literature, it was observed that short-term msg exposure does not cause significant histological changes in the kidneys, liver, or brain cortex. these findings should be re-evaluated in additional long-term studies. background monosodium glutamate (msg) is a widely-used flavor enhancer and stabilizer in ready-made or packaged foods. the excessive use of msg has been shown to ...

The aim of this study was to evaluate the effect of inclusion of tannic acid on some performance traits and nutrient digestibility in Holstein dairy calves. A total of 20 seven days old Holstein calves were randomly assigned to 4 experimental treatments with 5 calves each. The treatments were as follows: 1) basal diet formulated to meet all nutritional requirement of calves according to NRC (20...

Green tea polyphenol (Polyphenon) or tannic acid was administered orally to rats at a dose of 0.01–1.0 or 0.1– 1.0 g/kg for 23 days, and changes both in serum and hepatic lipid concentrations and in fecal steroid excretion were examined. The administration of 0.2–1.0 g/kg of Polyphenon caused a significant decrease in levels of serum HDLcholesterol, whereas tannic acid had no significant effect...

We have found several similarities between tannic acid and grain dust extract prepared with methanol. Both formed a precipitate with IgG, and these interactions were inhibited by albumin. In addition, both preparations fixed complement; this activity was heat stable and was removed by prior adsorption of the preparations with hide powder. Adsorption with polyvinyl polypyrrolidone reduced the co...

Rytidophyllum tomentosum (L.) Mart. (search-me-heart) is an aromatic Jamaican endemic herb traditionally consumed as a general tonic and for its medicinal properties. This present study evaluates the nutraceutical potential of R. tomentosum as a functional herbal tea, through the assessment of elemental composition, phenolic contents and in vitro antioxidant potential of samples collected from ...

The polyphenolic constituents and antioxidant activity of aqueous and acetone extracts of Vachellia karroo leaves were determined in order to evaluate its efficacy in scavenging radicals such as DPPH, ferric reducing power and nitric oxide as an antioxidant model. The flavonols and flavonoid and phenolic content of the leaf extracts were also accessed using benchmark phytochemical reaction meth...

BACKGROUND Monosodium glutamate (MSG) is a widely-used flavor enhancer and stabilizer in ready-made or packaged foods. The excessive use of MSG has been shown to increase oxidative stress in different organ systems and causes glucose metabolism disorders, obesity, and coronary diseases. OBJECTIVES In this study, the antioxidant activity of tannic acid was investigated experimentally with resp...

A simple, rapid and sensitive method was proposed for online determination of tannic acid in colored tannery wastewater by automatic reference flow injection analysis. Based on the tannic acid reduction phosphotungstic acid to form blue compound in pH 12.38 alkaline solutions, the shade of blue compound is in a linear relation to the content of tannic acid at the point of the maximum absorption...