Physicochemical and antioxidant characterization of Justicia spicigera

Optimization of ultrasonic-assisted extraction of phenolic compounds from Justicia spicigera leaves

“…Results showed that the yield ranged from 4.65 to 7.42% and the maximum extraction of soluble phenolic content (36.85 mg GAE/g) from ultrasonic-assisted extraction was obtained at lower extraction time and sonication amplitude. These values were relatively lower than the values reported by Baqueiro-Peña and Guerrero-Beltrán [13], who reported a total phenolic content of 52.6 mg GAE/g from J.…”

“…Ultrasonic-assisted extraction was adapted according to the methodology proposed by Baqueiro-Peña and Guerrero-Beltrán [13] with some modifications. For the experimental setup, a 400 Watts and 24 kHz frequency ultrasonic processor (Hielscher UP400S, Teltow, Germany) with sonication amplitude scale of 20-100% and pulse cycle scale of 0-1, where set value equals the acoustic power time in seconds, the difference to 1 s as pause time (e.g.…”

“…Ultrasound is a special type of sound wave that causes physical and chemical phenomena; the enhancement of extraction obtained by the use of ultrasound is mainly attributed to the effect of acoustic cavitation (mechanical and chemical effect) produced in the solvent by the passage of ultrasound waves. Ultrasonic-assisted extraction is reported to offer an inexpensive, environmentally friendly, less time consuming and efficient alternative to conventional extraction technique as mentioned by Baqueiro-Peña and Guerrero-Beltrán [13] who applied ultrasound at 42 kHz for 30 min at 20°C for the extraction of phenolic compounds from J. spicigera leaves, and samples were extracted using distilled water and water-ethanol at different concentrations. Polyphenols content and antioxidant capacity of J. spicigera leaf extracts were affected by the extraction conditions, and therefore, it is important to investigate the optimum operating conditions when ultrasound (amplitude, pulse cycle and extraction time) is applied in order to minimize the losses of the extracted compounds.…”

Sensory Characteristics and Antioxidant Activity of Zanthoxylum bungeanumMaxim. Pericarps

“…Similar results have been reported for Justicia spicigera. [26] The extracts compositions were found to be vary with respect to the solvents. The number of volatile components obtained was markedly different in water (21), methanol (18), ethanol (12), acetic acid (14), ethyl acetate (20), chloroform (17), and benzene (15).…”

Exploratory studies of some Mexican medicinal plants. Cardiovascular effects in rats with and without hypertension.

“…[ 6 ]. Some scientific evidence could support this empiric use, A. mexicana promote capillary dilatation, proliferation, and increased capillary permeability leading to edema in humans over exposed to its oils [ 7 , 8 ] those effects could diminish blood pressure (BP); there are no publications that report vascular properties of B. simaruba , nevertheless physicochemical characterization detected the presence of proanthocyanidins [ 9 ], consumption of proanthocyanidins-rich foods, herbs, and beverages, is associated with an improvement in endothelial function through vascular endothelial nitric oxide synthase activation, that inductive fact could explain the vascular protecting effect of that plant [ 10 ], likewise structural analysis of J. spicigera detected eucalyptol as one of its main compounds [ 11 ], that essential oil promotes vascular smooth muscle relaxation [ 12 ] and could be responsible of the antihypertensive effect. S. lepidophylla promotes diuresis and also the major components isolated from the plant include biflavonoids; those actions could validate its use as an antihypertensive drug [ 13 ].…”