This dissertation is dedicated to my almighty father jehovah god, through whom i had the strength and medicinal plants ten plant extracts were analysed for their antimicrobial activities using the agar well diffusion and broth microdilution method 43 determination of antioxidant activity. /antioxidant power (frap) and iron chelating ability were realized the results revealed that the extracts exhibited a potent dpph radical scavenging activity and powerful ferric reducing ability, which were better than those of qurcetin gallic acid and ascorbic acid in general the iron chelating ability of three plants extracts. The induction period of lard increased with antioxidant concentration after the induction period, peroxide formation proceeded rapidly, following pseudo-zero order reaction kinetics the rate of the reaction decreased slightly with increasing plant extract concentration combined addition of plant extracts in lard showed a. Isolation and characterization of antioxidant compounds from combretum apiculatum (sond) subsp apiculatum leaf extracts dimakatso thomas kgatle october dissertation submitted to the department of paraclinical sciences that the antimicrobial activity of aqueous plant extracts may be related to the antioxidant. Antioxidants 2013, 2 12 keywords: plant extracts essential oils hplc-uv/vis antioxidant capacity dpph abts rancimat test 1 introduction in an effort to minimize the undesirable effects of synthetic food preservatives in human health, food industries and scientists have recently turned their interest to.
Part 1: assessment of in vitro antioxidant activity of common vegetables 1 effect of domestic freezing and cooking on antioxidant activity of edible vegetables 5 part 2: evaluation of biological effects of extracts derived from edible plant: the cases of kale and basil 2 influence of agronomic techniques on the antioxidant. Antioxidant and cytotoxic properties of salvia absconditiflora and effects on cyp1a1, cyp1b1 i̇rtem kartal, derya dilek kançağı, derya gökçay and selin köse who contributed to my thesis with i thank to dr ferhat celep for his guidance in identification of plants and to dr tamay şeker for. The research presented here is the first step in identifying known, or novel, bioactive compounds from peanut plants that may provide the basis for value added products for the peanut industry the objective of this work was to identify an extract of peanut plant tissues that has substantial antioxidant activity peanut plants.
Ph d thesis: miss sandhya v rodge, 2015 antioxidant activity the antioxidant activity of selected medicinal plants was performed at chemistry research laboratory, deogiri college the antioxidant activity of methanol fruit extract of coccinia grandis was examined by comparing it to the activity of standard. Antibacterial activity of methanol extract was higher for escherichia coli with 45± 015 mm zone of inhibition and for staphylococcus aureus hexane extract was highly effective with the zone of inhibition of 78±036 mm plant extract showed potential antioxidant activity but antibacterial activity was found to be comparatively. Material and methods 17 31 plant material 17 32 identification of volatile oil components 17 33 extraction and isolation of iridoids 18 331 extraction 18 antioxidant activity in enzyme-independent system of six stachys species in folk medicine the aqueous or alcoholic extract of st recta was used for hysteria.
A thesis submitted in partial fulfillment of the requirements for the the extract of medicinal plants were prepared using soxhlet apparatus for alcoholic extract, and water reflux for aqueous extracts the antibacterial activities of extracts were antimicrobial and antioxidant activity (madhuri and pandey, 2009. In the current study an effort was carried out to investigate the fruits of some selected plants with highest antioxidant potential for this purpose ethanolic crude extracts of selected plants fruits, frequently used for various medicinal purposes in pakistan were subjected to 2,2-diphenyl-1-picrylhydrazyl radical scavenging. Many people as indeed, this thesis completion has taken a lot of effort and focus antioxidant activities of several acalypha indica extracts green, r j (2004) antioxidant activity of peanut plant tissues master's thesis nc state university hall c 2001 sources of natural antioxidants: oilseeds, nuts, cereals ,.
It is well known that the antioxidant activity of plant extracts containing polyphenol components is due to the capacity to be donors of hydrogen atoms or electrons and to capture the free radicals in the present study, a nigra methanolic leaf extract showed a significant effect in inhibiting dpph, reaching up to 8635% at. Dissertation submitted to the combined faculties for natural sciences and for mathematics of ruperto-carola university of heidelberg, germany for the degree of doctor of biological activity and mode of action of secondary metabolite with special reference to essential oil antioxidant activity of the plant extracts.