Microwave-Assisted Extraction of Garlic Essential Oil from Garlic

Abstract

Factors affecting microwave-assisted extraction of garlic essential oil from garlic were investigated experimentally. Suitable conditions for such extraction process were studied by single factor approach to improve the product yield. The product yield under the resultant suitable conditions can reach to 0.478% based on raw garlic cloves. The product yield for microwave-assisted extraction method is as 2.5 times as that for conventional solvent extraction approach.

Optimization Using Solvent-Free Microwave Hydro-diffusion Gravity Extraction of Onion Oil from Allium cepa by Response Surface Methodology

“…The phenomenon will affect the results of extraction, oil quality, and production costs due to increase energy consumption [23]. As similar result was reported by Yang (2011), in the highest level of microwave power, the oil yield from Allium cepa was decreased that might caused by decomposing the materials [24]. So, microwave power at 450 W, is recommended level for the extraction process from Allium cepa.…”

Stability and extraction of bioactive sulfur compounds from Allium genus processed by traditional and innovative technologies

“…al. (2011) it was demonstrated that MAE yielded up to 2.5 times greater sulfur-rich essential oil from garlic, compared to conventional solvent extraction (Yang et al, 2011). MAE was also employed for the extraction of alliin from garlic (Mallika et al, 2014), however, further investigation was required on the capability and efficiency of MAE to recover other bioactive compounds like allicin, while selecting the process parameters able to minimize the heat induced damage of thermally labile bioactive compounds.…”

Comparative Evaluation of Four Extraction Methods of Antioxidant Compounds from Decatropis bicolor in Aqueous Medium Applying Response Surface Design

“…The most common methods used for the extraction of bioactive compounds from vegetal matrixes (plants, vegetables, fruits, and by-products), are maceration, Soxhlet [ 1 , 2 ], and conventional solid-liquid extraction [ 10 ], although shaking and heated reflux have also been used [ 1 , 10 ]. Other methods as microwave, microwave-assisted [ 11 , 12 , 13 , 14 ], ultrasound-assisted [ 1 , 2 , 14 , 15 , 16 , 17 , 18 ], and super-critical fluid extraction [ 1 , 2 , 14 , 18 ] have been used to increase extraction yield [ 2 ]. The efficiency of the extraction depends on several factors such as temperature, sample (the type of plant and pre-conditioning), time, and the solvent agent, among others.…”