Probing the Comparative Bioefficacy of Allium sativum L. Bulb through Different Solvents

Abstract

Abstract. Allium sativum (garlic), an aromatic bulbous plant is one of the most vital and oldest authenticated herbs which has been utilized from ancient times as a traditional medicine. A. sativum has cardioprotective, antimicrobial, anti-inflammatory, antidiabetic, antioxidant and anticancer properties due to a large range of phenolic compounds and sulfur containing compounds. The current study was conducted to assess the antioxidant chemistry, and numerous bioactivities of A. sativum bulbs extracts in different solvents. Ethanol fraction was the most active antioxidant and showed maximum total phenolic content (16.18 g GAE/100 g), total flavonoid content (95.04 g CE/100 g) and free radical scavenging activity (75.50 %). Methanol (4 %) fraction exhibited maximum antiglycation activity. Aqueous, n-hexane and ethyl acetate fractions exhibited maximal (52 %, 24 % and 38 %) inhibitions of alpha-amylase, alpha-glucosidase and acetylcholinesterase respectively. In an antimicrobial assay, ethanol (59.05 %) and chloroform (72.92 %) fractions showed maximum inhibition of Pasturella multocida and Staphylococcus aureus strains respectively. n-butanol and n-hexane fractions showed maximum (31 %) antihemolytic activity and (20 %) thrombolytic activities respectively. A. sativum bulb extracts and fractions have noteworthy bio-efficacies that holds promise to be used as a source of natural drug to cure various disorders.
 
 Resumen. Allium sativum (ajo), una planta bulbosa aromática, es una de las hierbas autenticadas más vitales y antiguas que se han utilizado desde la antigüedad como medicina tradicional. A. sativum tiene propiedades cardioprotectoras, antimicrobianas, anti-inflamatorias, anti-diabéticas, anti-oxidantes y anti-cancerígenas debido a una amplia gama de compuestos fenólicos y compuestos que contienen azufre. El estudio actual se llevó a cabo para evaluar la química antioxidante y numerosas bioactividades de extractos de rizoma de A. sativum en diferentes disolventes. La fracción de etanol tuvo la mayor actividad antioxidante y mostró un contenido fenólico total máximo (16.18 g GAE / 100 g), contenido total de flavonoides (95.04 g CE / 100 g) y actividad captadora de radicales libres (75.50 %). La fracción de metanol (4 %) exhibió la mayor actividad de antiglicación. Las fracciones acuosa, de n-hexano y de acetato de etilo inhibieron la actividad de alfa-amilasa, alfa-glucosidasa y acetilcolinesterasa, en 52 %, 24 % y 38 % respectivamente. En el ensayo antimicrobiano, las fracciones de etanol (59.05 %) y cloroformo (72.92 %) mostraron una inhibición máxima de las cepas de Pasturella multocida y Staphylococcus aureus, respectivamente. Las fracciones de n-butanol y n-hexano mostraron actividad anti-hemolítica (31 %) y trombolítica (20 %) respectivamente. Los extractos y fracciones de rizoma de A. sativum tienen bioeficacia notable con potencial de ser utilizadas como una fuente de fármaco natural para curar diversos trastornos.

Phytochemical characterization and antibacterial evaluation of crude saps from medicinal plants in Palestinian cuisine

“…Absorbance was measured with a microliter plate reader at 570 nm. MIC was determined using the following formula (20,21): Percentage of inhibition = 1 − (Optical density (OD) test/OD Positive Control) × 100. In addition, the MIC50 was calculated based on the linear equations of the standard MIC curves versus the concentration of the plant extracts.…”

“…Folin-Ciocalteu reagent method was used to determine the total amount of phenol in the aqueous extract (21,27). 1 mL of plant extract was mixed with 2 mL of 2% solution of Na2CO3 and 2.5 mL of 10% Folin-Ciocalteu reagent at room temperature.…”

Enzyme Inhibitory and Mutagenicity Guided Investigation of Selected Medicinal Plants in Different Solvents

“…Later, distilled water was utilized to dissolve these extracts and separating funnel was used for fractionation of a few polarity-based solvents viz. ethyl acetate, chloroform, n-hexane, methanol, n-butanol and ethanol along with water at 1:10:10 ratio (extract: distilled water: solvent) and then for further use were preserved at 4 ºC [6].…”