Food preservation is an action or a method of maintaining foods at a desired level of properties or nature for their maximum benefits. In general, each step of handling, processing, storage, and distribution affects the characteristics of food, which may be desirable or undesirable. Thus, understanding the effects of each preservation method and handling procedure on foods is critical in food p...

Radical scavenging and antioxidant activities of nine flavonoids previously isolated from the aerial parts of Chenopodium bonus-henricus L. were established using DPPH and ABTS free radicals as well as inhibition of lipid peroxidation in a linoleic acid system by the ferric thiocyanate method. Patuletin glycosides, compounds 1, 2 and 7 showed the highest DPPH (85.78%, 85.59%, 86.07%) and ABTS a...

Natural phytochemicals such as curcumin with 3-ABN and also their synthetic derivatives have received the attention of various chemist and biochemist owing to their various pharmacological actions. Development and discovery of new 3-ABN based hydrazine derivatives with antioxidant activities is one of the interesting areas in medicinal and natural product chemistry. In the present study, a new ...

Objective(s):The current study was aimed to determine the bioactive constituents and biological effects of the Crataegus monogyna ethanolic extracts from bark, leaves and berries on hypercholesterolemia. Materials and Methods: Oleanolic acid, ursolic acid, quercetin and lupeol concentrations were quantified by HPLC. Total phenol content and radical scavenging activity of extracts were also mea...

. In this paper content of phenolic compounds from black radish (Raphanus sativus L. var niger) roots of different size were examined. Black radish grown in Serbia, with the same period of development, grouped by size into three groups: (R1) with mass of 350 15 g; (R2): 100 10 g and (R3): 35 5 g, were used. Plant extracts were prepared by using 80% (v/v) ethanol and total phenolic compounds con...

the oxidative stress causes many diseases in human, therefore antioxidants have a specialposition in the medicinal chemistry. tyrosol is an important antioxidant with a plenty ofbiological properties. there are many strategies such as clustering single drug units in orderto develop new drugs. the cluster effect can increase drug effects relative to single drug unit.calixtyrosol is the novel clu...

Antioxidants are vital substances which possess the ability to protect the body from damage caused by free radical-induced oxidative stress. A variety of free radical scavenging antioxidants exist within the body which many of them are derived from dietary sources like fruits, vegetables and teas. This article describes a test method for screening the antioxidant activity of 60 Iranian plant...

Antioxidant activity of the ethanol extract of Sida rhombifolia was determined by DPPH free radical, hydrogen peroxide scavenging assays, reducing power, total antioxidant capacity using phosphomolybdenum method, and rapid radical scavenging screening methods. Preliminary phytochemical screening revealed that the extract of S. rhombifolia leaves (SR-L), stem (SR-S) and roots (SR-R) possesses ph...

The effect of allyl isothiocyanate (AITC) on radical scavenging capacity, and fruit decay of blueberries var. Duke (Vaccinium corymbosum L.) was evaluated. Results from this study showed that AITC was effective in retarding blueberry decay during storage at 10 C. However, AITC-treated fruit decreased the contents of total phenolics and anthocyanins. Compared to control, AITC-treated berries had...

the effect of different solvent systems on the extraction of antioxidant and anti radical agents of grape seed was studied. for this purpose 6 different solvent systems with similar polarity and different selectivity were used to prepare grape seed extract. extraction efficiency, reducing activity, radical scavenging property and the effect of each extract on the increase of thermal resistance ...