The antioxidant capacity and antioxidant constituents of two filamentous fungi (Acremonium charticola and Rhizopus oryzae) isolated from the Indonesian fermented dried cassava (gathot) were evaluated in the present study. The antioxidant capacity of the fungal crude extracts was assessed based on the 2,2'-azino-bis(3-ethyl-benzthiazolin-6-sulfonicacid) (ABTS) method. Total phenolics were determ...

A method for the determination of total reducing capacity (TRC) based on the reduction of Cu(II) to Cu(I) by antioxidants in a buffered solution (pH 7.0) containing 4,4'-dicarboxy-2,2'-biquinoline acid (BCA) was developed. Absorbance values at 558 nm characteristic of the Cu(I)/BCA complexes formed were used to determine the TRC of aqueous extracts of twelve Brazilian plants. The TRC values obt...

Honey contains various compounds that function as antioxidants, one of which is phenolic compounds. The purpose this study was to determine the correlation between content multiflora honey from Malang and Alastuwo on antioxidant activity using DPPH method (2,2-Diphenyl-1-picrylhydrazyl). Qualitative test with FeCl3 color reagent, determination total by UV-Vis spectrophotometry Folin-Ciocalteu r...

Objective: Propolis is a mixture of plant resins and bee secretions. This study is to evaluate the antioxidant and antimicrobial activity of stingless bee propolis (Tetragonulairidipennis), rearedfromPudukottai region of Tamilnadu, India and also to determine the total phenol and total flavonoid contents of the sample responsible for these properties. Methods: Stingless bee propolis was extract...

The research objectives were to identify the secondary metabolite components, total phenolic content and determine antioxidant activity of ethanol extract red betel leaf (Piper crocatum Ruiz & Pav.). extraction process was carried out by materation using as a solvent. Determination colorimetrically with Folin-Ciocalteu reagent measured at maximum wavelength 765 nm. DPPH method spectrophotom...

The popularity of fruit tea is increasing in the world because of its antioxidant properties and attractive taste. The aim of this study was to determine and compare the antioxidant property and phenolic composition of 16 different fruit teas. The antioxidant property and total phenol content of fruit teas depending on the extraction condition (water temperature) were examined using the ABTS (2...

Objective: Boerhaavia elegans L. (Nyctaginaceae) is a medicinal plant used for the treatment of kidney disorders, urinary tract disorders and blood purification in Baluch tribe. The aim of present study is to evaluate the antioxidant propertyof B. elegans species for the first time. Materials and Methods: Different parts (leaf, stem and fruit) of the plant were extracted by using various solven...

In this present study, an environmentally friendly and rapid method for the synthesis of silver nanoparticles (SNPs) has been reported using Ziziphus Vulgaris (ZV) unripe fruit extract under mild conditions. The synthesized silver nanoparticles have been characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR) and ultravio...