This study was performed to evaluate and compare the antioxidant substance content and antioxidant activities of white (Superior) and colored (Hongyoung, Jayoung, Jasim, Seohong, and Jaseo) potatoes. The potatoes were extracted with 80% ethanol and were evaluated for the total polyphenol, flavonoid, and anthocyanin contents and for 1,1-diphenyl- 2-picrylhydrazyl (DPPH)/2,2'-azino-bis(3-ethylben...

Extraction methods are very important processes for separation of bioactive compounds of medicinal plants before analyses. Phenolic and flavonoid compounds include a broad variety of structures and functionalities that are required for the production of foods and food additives and there are different methods for the their extraction. In this study, total phenolic and flavonoid contents of leaf...

Background: Thymus persicus is one of the Iranian endemic medicinal plants, that its decoction and various products have plenty of food and pharmaceutical uses. Objective: Evaluation of T. persicus products metabolite contains and determination of the best antioxidant, anti-diabetic and anti-Alzheimer extract. Methods: Samples total phenolic, flavonoid and tannin contents were determined by F...

Epimedium pseudowushanense B.L.Guo, a light-demanding shade herb, is used in traditional medicine to increase libido and strengthen muscles and bones. The recognition of the health benefits of Epimedium has increased its market demand. However, its resource recycling rate is low and environmentally dependent. Furthermore, its natural sources are endangered, further increasing prices. Commercial...

teucrium polium (labiatae) is a plant that widely grows in iran. some of species of teucrium are used for a considerable range of actions in traditional medicine and t. polium has frequently been used as anticonvulsant. in this study, we investigated the protective effects of t. polium ethanolic aqueous extracts and related fractions on seizures induced by pentylenetetrazole (ptz) and maximal e...

abstractbackground and objective: microwave-assisted extraction (mae) is one of the novel, fast, and efficient methods for extraction of bioactive compounds. the aim of this study was optimization of mae of betalains from red beet (beta vulgaris) and evaluating antioxidant activity of its methanolic extract.materials and methods: the effects of independent variables namely, microwave power leve...

Long exposure of UV radiation increases risk of skin diseases such as cancer and photoallergic reactions. UV-B (280-320 nm) radiation is mainly responsible for inducing skin problems. Skin protection is a suitable method in the fight against ultraviolet radiation induced damage. Various synthetic agents have been used as photo protective but because of their potential toxicity in humans, they h...

INTRODUCTION Studies of the medical folklore of Northwestern Argentina are of great ethnomedicine value. The fruits of Geoffroea decorticans (Fabaceae) are used for both culinary and medical purpose (1). The aim of the present work was determined the total phenolic and flavonoid contents and antioxidant activities of extracts of chañar fruits. It was investigated the possible toxic effect on rats.