BACKGROUND Exogenous pretreatment of oxidative stress on callus cultures of Bellis perennis L. (common daisy) induced catalase (CAT), superoxide dismutase (SOD), total phenolic, total flavonoid, total protein and selected commercial phenolic compounds production and accumulation. MATERIALS AND METHODS The callus culture obtained from B. perennis pedicel explants was incubated on Murashige and...

Introduction: Leucas aspera is one of the important medicinal plants in Indian medical system and it belongs to Lamiaceae family. Leucas aspera (Willd) Link (L. aspera) belongs to Leucas genus, widely distributed throughout India. L. aspera has many vernacular names and is commonly known as Thumbai. Flavonoid is a phenolic compound which is widely distributed in the plants and responsible for m...

eight salvia l. species including s. spinosa l., s. reuterana boiss., s. macrosiphon boiss., s. syriaca l., s. nemorosa l., s. virgata jacq., s. sharifii rech. f. & esfand. and s. mirzayanii rech. f. & esfand. were studied for flavonoid compounds. these constituents were analyzed using two-dimensional maps on silica gel 60f thin layer chromatography. the flavonoid compounds of each spec...

Flavonoids are phytochemicals that are widespread in the human diet. Despite limitations in their bioavailability, experimental and epidemiological data suggest health benefits of flavonoid consumption. Valid biomarkers of flavonoid intake may be useful for estimating exposure in a range of settings. However, to date, few useful flavonoid biomarkers have been identified. In this study, we used ...

Sorghum bicolor is an ancient plant that has been cultivated in North-eastern Africa for over 5000 years [1]. This is a cane like grass, up to 6 meters tall with large branched clusters of grains. The individual grains are around 3-4 mm in diameter and vary in colour from white, red, brown, yellow, purple, to black. The leaves resemble those of maize and grow rapidly. Sorghum grains of differen...

Seven phenolic compounds were isolated from the fruits of Viburnum sargentii Koehne by silica gel column chromatography and preparative HPLC. On the grounds of chemical and spectroscopic methods, their structures were identified as (-)-Epicatechin (1), 5,7,4'-trihydroxy-flavonoid-8-C-β-D-glucopyranoside (2), 1-(4-hydroxy-3-methoxyphenyl)-2-[4-(3-α-L-rhamnopyranoxypropyl)-2-methoxyphenoxy]-1,3-p...

Objective(s):To optimize the extraction method using response surface methodology, extract the phenolic compounds, and identify the antioxidant and biological properties of Stachys parviflora L.  extracts. Materials and Methods: Maceration and ultrasound-assisted extraction (UAE) (4, 7, 10 min treatment time, 40, 70, 100 % high-intensity and 60, 80, 100 % (v v-1) methanol purity) were applied t...

Sorghum bicolor is an ancient plant that has been cultivated in North-eastern Africa for over 5000 years [1]. This is a cane like grass, up to 6 meters tall with large branched clusters of grains. The individual grains are around 3-4 mm in diameter and vary in colour from white, red, brown, yellow, purple, to black. The leaves resemble those of maize and grow rapidly. Sorghum grains of differen...

Background: Natural products such as herbs, fruits, spices, beverages, vegetables are becoming more popular among scientific community and consumers because of their potential to arrest the effect of free radicals in human system. This study determined the total antioxidant capacity of ten selected species of Zingiberaceae (Ginger) used as spices and for medicinal purposes in Southeast Asia. Ma...