Watercress (Rorippa nasturtium-aquaticum), wild rocket (Diplotaxis tenuifolia), and spinach (Spinacia oleracea) are commercial crops reported to have high concentrations of antioxidants, possibly contributing to disease prevention following human consumption. Following analysis of supermarket-purchased salad leaves, we report the antioxidant content potential of these species using two comparab...

Bioactive compounds and antioxidant capacities of “Phulae” and “Nanglae” pineapple (Ananas comosus L. Merr) which are important geographical indications of Chiang Rai, Thailand were investigated. Two pineapple varieties were collected at 20-40 % yellow peel colour. Total soluble solids (TSS), titratable acidity (TA), total polyphenols, β-carotene, vitamin C and antioxidant capacity (ferric redu...

Herb and spices namely kesum, ginger and turmeric were extracted by using juice extractor without the additional of solvent. These herb and spices were determined for moisture content and the extracts were analyzed for total phenolic content (TPC) and antioxidant activity (DPPH radical scavenging assay and FRAP ferric-reducing antioxidant power assay). The yield of kesum, ginger and turmeric ex...

In the current study, ultrasonic assisted ethanolic extract of propolis was discussed in detail, including their total phenolic content, antioxidant capacity and radical scavenging capacity. For this purpose, we determined by CUPRAC FRAP) assay. At same time, free extracts investigated via DPPH• CUPRAC- hydroxyl (HRS) methods. The chemical constituents were characterized ATR-FTIR. results revea...

antioxidant activity of peucedanum pastinacifolium boiss. & hausskn aerial part hydroalcoholic extract (hae) and polyphenolic extract (ppe) as well as their total phenolic and flavonoid contents were studied. phenolic and flavonoid contents were respectively estimated as gallic acid and quercetin equivalents. the in vitro antioxidant activity of two extracts of p. pastinacifolium were evaluated...

Plant foods are important due to their antioxidant activity (AOA) attributed to the phenolics which are known to protect organisms against harmful effects of oxygen radicals. However, information on antioxidant activity of Indian plant foods is scanty. Therefore, the present study evaluated the AOA of cereals, millets, pulses and legumes, commonly consumed in India and assessed the relationship...

Background: Chronic obstructive pulmonary disease (COPD) is a major public health problem that needs greater attention. Variability in the susceptibility to develop COPD is related to both genetic and environmental factors. Oxidative stress and inflammation are the major hallmarks of COPD and antioxidant status can be used as a biomarker to assess the risk of chronic diseases. Materials and Met...

Several assays were compared for their ability to detect inhibition of gap junctional communication in human embryocarcinoma cells exposed to the pesticide dieldrin. Included in this evaluation was a recently developed assay based on the transfer of the fluorescent dye derived metabolically from 5(and 6)-carboxy-2,7-dichlorofluorescein diacetate. This assay was compared to assays for fluorescen...

Extracts that were obtained with solvents of increasing polarity (hexane, dichloromethane, methanol, 80% and water) from the red macroalga Gracilaria domingensis evaluated by reducing power ferric reduction antioxidant (FRAP) Folin–Ciocalteu (FC) assays, lipid peroxidation inhibition β-carotene-linoleic acid assay, metal chelating ability based on iron-ferrozine system. The highest capacity was...