the aim of the study was to evaluate the antioxidant and free radical scavenging properties and to determine the phenolic content of the ethanol extract from five mentha species [m. longifolia (l.) huds., m. piperita l., m. pulegium l., m. rotundifolia (l.) huds., and m. spicata l.]. the antioxidant activities of the extracts were investigated with two different methods, 2,2’-diphenyl-1-picrylh...

this study was designed to examine the in vitro antioxidant activities and total phenolic contents of the methanolic extracts from male inflorescence of salix aegyptiaca l. grown in iran. the methanolic extract (me) and its three fractions including water (wf), butanol (bf) and chloroform (cf) were prepared and then their antioxidant activities, as well as total phenolic contents, were evaluate...

Golongan senyawa fenol dan flavonoid pada umbi ubi jalar ungu-ungu merupakan kontributor utama aktivitas antioksidan. Penelitian dilakukan untuk mengetahui pengaruh bobot jenis terhadap kandungan total ekstrak etil asetat ungu-ungu. diawali dengan pengumpulan pembuatan simplisia ungu-ungu, bagian kulit luar berwarna ungu, dalam ungu. Simplisia diekstraksi pelarut menggunakan metode refluks titi...

Dioscorea hispida Dennst atau di Indonesia dikenal dengan umbi gadung diketahui mengandung senyawa aktif fenol yang dapat memberikan aktivitas antioksidan. Ekstraksi dari masih belum banyak diteliti. Tujuan penelitian ini adalah untuk mengekstraksi menggunakan metode ultrasonic-assisted extraction (UAE) pelarut bervariasi yaitu air, etanol, dan metanol serta menguji antioksidannya. Penentuan ka...

Limonium brasiliense is a common plant on the southern coast of Brazil. The roots are traditionally used for treatment of premenstrual syndrome, menstrual disturbances and genito-urinary infections. Pharmaceutical preparations obtained from its roots and used for these purposes were marketed in Brazil in the 1980s and 1990s. Currently, the Brazilian Drug Agency (National Health Surveillance Age...

Two spectrophotometric methods are proposed for the assay of oxcarbazepine (OXC) in bulk and dosage forms using Folin-Ciocalteu phenol reagent (FCP) and 3-methyl-2-benzothiazolinone hydrazine hydrochloride (MBTH) as reagents. The first method involves addition of FCP reagent to OXC in alkaline medium followed by measurement of absorbance at 760 nm (method A), and the other involves addition of ...

Etlingera elatior, Persicaria odorata, Centella asiatica, Senna alata and Phyllanthus emblica were reviewed for their in vitro anti-collagenase activity its total phenolic contents. Plant herbs play a vital role to promote the production of collagen which is component skin. Different solvents during plant extraction various parts used determine properties content. Generally, assay Folin-Ciocalt...

A study of the chemical composition essential oil obtained from aerial parts Salvia verticillata L., growing in Georgia, was carried out. The percentage dominant components determined by internal integration, component leaves is caryophyllene (10.15 %), spathulenol (9.8 valeranone (11.9 and flowers, germacrene D (17.2 (9.43 %). ratio terpene compounds flowers oxygenated sesquiterpenes are 38.43...

The aim of this study was to investigate the effect coffee roasting process on both toxic and some beneficial antioxidant compounds, applying a systematic broad approach. Arabica Robusta green beans were roasted in lab-scale roaster for different times order achieve five degrees (from light dark) assess evolution acrylamide (AA), trigonelline, nicotinic acid caffeoylquinic acids contents (deter...