Antioxidant and antiacetylcholinesterase activities of five plants used as Portuguese food spices

Antibacterial secondary metabolites from an endophytic fungus, Arthrinium sp. MFLUCC16-1053 isolated from Zingiber cassumunar

“…(Gonzalez-Burgos and Gomez-Serranillos 2012) due to the presence of strongly activated methylene groups. However, Mata et al opposed this by reported that extracts containing terpene compounds were considered to have low antioxidant activity in the DPPH reduction due to low solubility in methanol solvent resulting in low capability of donating a hydrogen atom (Mata et al 2007). Thus, the significant antioxidant activity of the extract of Arthrinium sp.…”

Microwave-assisted hydrodistillation of essential oil from rosemary

“…This may be due to the differences in growth stages and ecological (Table 2). Mata et al (2007) reported that water and ethanol extracts of rosemary had the same antioxidant activity against DPPH radical. Dorman et al (2003) reported that aqueous extracts of rosemary and sage showed the highest activity against DPPH radical.…”

Bioactive triterpenes and phenolics of leaves of Eugenia brasiliensis

“…33 Briefly, 325 mL of 50 mM Tris-HCl buffer, pH 8, 100 mL of a buffer solution of sample (0.1 mg mL -1 for the extract and fractions, and 0.01 mg mL -1 for isolated compounds, dissolved in EtOH) and 25 mL of acetylcholinesterase (AchE) solution containing 0.28 U/mL (50 mM Tris-HCl, pH 8 buffer, 0.1% BSA) were incubated for 15 min. Subsequently, 75 mL of a solution of ACTI (0.023 mg mL -1 in water) and 475 mL of DTNB (3mM in Tris-HCl, pH 8 buffer, 0.1 M NaCl, 0.02 M MgCl 2 ) were added and the final mixture incubated for another 30 min at room temperature.…”