The methanolic extract of aerial parts of Tanacetum vulgare L. (Asteraceae) and its fractions were investigated for antioxidant activity. The crude extract displayed DPPH radical scavenging effects with an EC50 value of 37 +/- 1.2 microg/mL (n=3). Activity-guided fractionations of the crude extract resulted in the isolation of three antioxidant compounds; 3,5-O-dicaffeoylquinic acid (3,5-DCQA),...

BACKGROUND Eichhornia crassipes (Mart) solms is an invasive macrophyte causing serious problems to the network of irrigation and drainage canals in the Nile Delta region. The present study aim to evaluate the potential anticancer and antioxidant activities of Eichhornia crassipes crude extract and its pure compounds. METHODS The macrophyte was collected from El-Zomor canal, River Nile (Egypt)...

objective(s): echis carinatus is one of the venomous snakes in iran. the venom of iranian echis carinatus is a rich source of protein with various factors affecting the plasma protein and blood coagulation factor. some of these proteins exhibit types of enzymatic activities. however, other items are proteins with no enzymatic activity.   materials and methods: in order to study the mechanism an...

the activity of phospholipase c in crude enzymatic preparation of melia azadiracht seeds (neem seeds) was studied by the use of lecithin as a substrate in aqueous medium. the enzyme activity was found optimum at ph 2.5 and temperature 35?c. the phospholipase c was found heat labile, being inactivated 88% within 10 minutes at 90°c

The antioxidant potential of crude methanol extract (CE) as well as chloroform (CF), ethyl acetate (EF) and n-butanol (NF) soluble fractions of Enhydra fluctuans Lour, which is widely used in indigenous system of medicine for different purposes, were studied. The antioxidant potential of extract/different fractions were evaluated using different in vitro antioxidant models. In addition, total a...

enzymatic extract preparation from pseudomonas aeruginosa km110 under accession no. hq730879 with lipase activity (0.3 u/ml), was used to perform enzymatic hydrolysis pretreatment of a synthetic dairy wastewater with 1000 mg/l total fat content. the pretreatment was optimized for 48 h hydrolysis time, at 45æ% c with 10% v/v enzymatic extract. the biological treatment of synthetic dairy wastewa...

The antioxidant potential of crude methanol extract (CE) as well as chloroform (CF), ethyl acetate (EF) and n-butanol (NF) soluble fractions of Enhydra fluctuans Lour, which is widely used in indigenous system of medicine for different purposes, were studied. The antioxidant potential of extract/different fractions were evaluated using different in vitro antioxidant models. In addition, total a...

Hirsutella thompsonii # 966 was cultured and extracted with ethyl acetate. The ethyl acetate layer was then eluted on Sephadex LH-20 column with methanol and the eluted chemical components were analyzed on a Bruker DRX 400 NMR spectrophotometer. The analysis showed several components such as glycerol, ergosterol and diketopiperazine. This was the first time that diketopiperazine had been isolat...

The present paper focused on antioxidant and cytotoxicity assessment of crude and total saponin fraction of Chlorophytum borivilianum as an important medicinal plant. In this study, three different antioxidant activities (2,2-diphenyl-1-picrylhydrazyl radical scavenging (DPPH), ferrous ion chelating (FIC), and β -carotene bleaching (BCB) activity) of crude extract and total saponin fraction of ...

in an effort to evaluate the hypoglycemic activity of t. polium, the crude extract was administered orally to a group of streptozotocin induced diabetic rats for 6 consecutive weeks. significant decrease in blood glucose by 64%, total bilirubin by 35%, glutamate oxaloacetate transferase by 48% and glutamate pyruvate transferase by 30% was observed compared to untreated diabetic rats. however, t...