Potential of amino-functionalized cellulose as an alternative sorbent intended to remove anionic dyes from aqueous solutions.

Adsorption has been explored to minimize the pollution caused by dyes. This work relates the preparation of diethylenetriamine-modified cellulose (DetaCel) by reacting phthalic anhydride-modified cellulose (PhCel) with diethylenetriamine (Deta). Materials were characterized by Elemental Analysis and results showed a degree of incorporation of 5.

Evaluation of Antioxidant Activity of Phytol Using Non- and Pre-Clinical Models.

Background: Phytol (3,7,11,15-tetramethylhexadec-2-en-1-ol; PHY), the alcoholic diterpenoid is particularly interesting due to its diverse activities found in literature. This study evaluated in vitro and in vivo antioxidant capacity of PHY.

Methods: We conducted DPPH• (2,2-diphenyl-1-picrylhydrazyl) and ABTS•+ (2,2'-azino-bis(3- ethylbenzthiazoline-6-sulphonic acid)) radical scavenging tests as in vitro, while Saccharomyces cerevisiae test as in vivo.

Light-mediated antibacterial activity of Lippia origanoides H.B.K. in vitro.

An ethanol extract and different partition fractions obtained from Lippia origanoides H.B.K.

Mikania glomerata: Phytochemical, Pharmacological, and Neurochemical Study.

The present study primarily aims to identify the relative density and the fatty acids (methyl esters) content present in the standardized ethanol extract of leaves of M. glomerata (EPMG). Meanwhile, in a second moment, this study evaluated the effects of the EPMG on the levels of amino acids in the hippocampus, and the mechanism of sedative and anxiolytic action.

Brazilian brown propolis elicits antileishmanial effect against promastigote and amastigote forms of Leishmania amazonensis.

Propolis is a complex matrix of chemical constituents extracted from plants and produced by bees which is used in folk medicine due to its several pharmacological properties. Its chemical composition varies according to the region where it is produced. This work has studied the antileishmanial activity and cytotoxicity of brown propolis (BP) originating from the semi-arid region of Piauí, Brazil.

Investigation of biological activities of dichloromethane and ethyl acetate fractions of Platonia insignis Mart. seed.

Platonia insignis Mart., a native species of the Brazilian Amazon more commonly known as bacuri, is a member of the Clusiaceae family. In this study, we evaluated the chemical composition and the antioxidant and toxicity activities of the dichloromethane and ethyl acetate fractions from P.