Preliminary phytochemical screening was carried out for pet ether, chloroform and ethanol extracts of Holarrhena antidysentrica leaves. The extracts showed the presence of various phytocompounds like alkaloids and flavonoids. In vitro antioxidant activity was carried out with all the three extracts using DPPH assay using ascorbic acid as a standard. All the extracts had shown significant antiox...

Functional compounds from black rice were extracted conventionally using organic solvents, namely ethanol-distilled water and water-acid (acetic acid a mixture of lactic acetic acid) along with distilled as control. The effectiveness each solvent was determined by analysis functional contents (anthocyanin content, flavonoids, total phenolic, antioxidant activity), pH value, the resulting color ...

The effects of UV-B radiation on the amount of chlorophyll a, b, carotenoids, flavonoids, anthocyanins, and polyphenols of three soybean cultivars was studied. After germination in the incubator, plants were put in pots of soil and during 3 weeks and irrigated with Hoagland solution every day. After 3 weeks, plants were exposed to UV-B for 20 min every day for a week. In each cultivar, UV-B red...

Objective: Bougainvillea xbuttiana is widely distributed in Mexico and it used as an analgesic in folk medicine. The aim of this study was to investigate the effect of five ethanolic extracts of Bougainvillea xbuttiana from different colours on cell and to quantify the potential of antioxidant activity, the total phenolic and flavonoids contents, all these in order to find possible sources for ...

Abstract Lettuce is a vegetable most consumed and produced on large scale in the world, it deserves special attention for its nutritional functional value. Cultivated conventional, hydroponic organic method, presents different characteristics production, which may influence composition of this vegetable. It indisputable that regular consumption vegetables beneficial due to presence bioactive co...

In an extensive search for bioactive compounds from plant sources, the composition of different extracts of rosemary leaves collected from different geographical zones of Serbia was studied. The qualitative and quantitative characterization of 20 rosemary (Rosmarinus officinalis) samples, obtained by microwave-assisted extraction (MAE), was determined by high performance liquid chromatography c...

Aim Free radicals are an outcome of various metabolic activities and their excess production leads to many diseases. Therefore, it is necessary to neutralize excess free radicals. Materials & methods Free-radical scavenging activity of various extracts of Schima wallichii was evaluated using standard protocols. Results Chloroform, ethanol and aqueous extracts of S. wallichii scavenged DPPH,...

This paper mainly examined the anti-osteosarcoma activity of total flavonoids extract from traditional Chinese medicine, nidus vespae. Orthogonal design was used to design the extraction process of total flavonoids. L(3(4)) orthogonal test was performed and the extracts obtained by three optimal extraction processes were used for anti-tumour activity screening in order to determine the optimal ...