In this study the in vitro activities of seven antibiotics (ciprofloxacin, ceftazidime, tetracycline, trimethoprim, sulfamethoxazole, polymyxin B and piperacillin) and six phytochemicals (protocatechuic acid, gallic acid, ellagic acid, rutin, berberine and myricetin) against five P. aeruginosa isolates, alone and in combination are evaluated. All the phytochemicals under investigation demonstra...

The antioxidant gallic acid (GA) has been incorporated into cotton (CO) and polyamide (PA) through two different vehicles, that is, liposomes and mixed micelles, and their respective absorption/desorption processes have been studied. Moreover, in vitro percutaneous absorption tests of different cosmetotextiles have been performed to demonstrate antioxidant penetration within the layers of the s...

Bioguided fractionation of a leaves extract from Limoniastrum feei (Girard) Batt. (Plumbaginaceae) led to the isolation of seven polyphenolic constituents: gallic acid (1), myrciaphenone A (2), myricetin-3-O-beta-galactopyranoside (3-1), epigallocatechin gallate (3-2), myricetin 3-O-alpha-rhamnopyranoside (4), quercetin (5) and myricetin (6). Gallic acid was the most antioxidant compound in DPP...

The title compound, C(7)H(6)O(5)·H(2)O, is a new polymorph of the structures reported by Jiang et al. (2000 ▶) [Acta Cryst. C56, 594-595] and Okabe et al. (2001 ▶) [Acta Cryst. E57, o764-o766]. The gallic acid mol-ecule is essentially planar (r.m.s. deviation = 0.550 Å). An intra-molecular O-H⋯O hydrogen bond occurs in the gallic acid mol-ecule, which is linked to the water mol-ecule by a furth...

Secondary metabolites, DIBOA, HBOA, 7-OH-HBOA, BOA and gallic acid, were isolated and quantified from Calceolaria thyrsiflora Graham, a native medicinal plant of Chile belonging to the Scrophulariaceae family. The highest DIBOA contents were determined in leaves (145 mmol kg(-1) dry wt) and flowers (161 mmol kg(-1) dry wt). Antibacterial activities of DIBOA, HBOA, BOA, gallic acid and infusions...

Mango (Mangifera indica cv. Ataulfo) peel contains bound phenolics that may be released by alkaline or acid hydrolysis and may be converted into less complex molecules. Free phenolics from mango cv. Ataulfo peel were obtained using a methanolic extraction, and their cellular antioxidant activity (CAA) and permeability were compared to those obtained for bound phenolics released by alkaline or a...

Gallic acid (GA), rutin(R), quercitin (Q), ellagic acid (EA) and sitosterol(S) isolated from the methanolic extract of the leaves of Tectona grandis were formulated as 0.2 % ointment in emulsifying base and were evaluated for their wound healing activity. The animals were divided into eight groups of six animals each. Groups 1 used as control, group 2 used as a standard i.e. nitrofurazone ointm...