Methods | Apparatus used | Extraction yield & (extraction time) | Solvent used | Advantage | Disadvantage | References |
---|---|---|---|---|---|---|
CHE | Soxhlet apparatus | 3.2% 2Â h | 95% Ethanol,10% aq. Potassium hydroxide | Simple, low cost, no filtration is required after leaching | A long time of extraction and a large amount of extractant is required | Luque de Castro and Priego-Capote [175], Shingate et al. [25] |
Reflux Extraction | RBF, condenser, Buchner funnel, etc. | 5% 20Â min | Dichloro-methane, Acetone and Hexane | More efficient than percolation or maceration and requires less extraction time and solvent | Cannot be used for thermolabile natural products | |
Cold Maceration | Separating funnel, Rota evaporator, etc. | 4.6% – | GAA, chloroform, 10% sodium bicarbonate, toluene, ethyl acetate, sodium hydroxide, diethyl ether | Yield is high, pure, and crystallizable as compared to the above two methods | Complex and time-consuming | Shingate et al. [25] |
EASC-CO2 Extraction | SPEED SFE 2, Ice-bath | 0.88–1.38 mg/g dry black pepper 2.25 h | α-Amylase, CO2, methanol | Efficient | Expensive | |
ILUA Extraction | KQ-100DA and KQ-500 ultrasonic water baths (Kunshan, Jiangsu, China), Acquityâ„¢ UPLC (Waters, Milford, MA, USA) | 3.57% 30Â min | 1-Alkyl-3-methylimidazolium ionic liquids, deionized water, methanol | High extraction efficiency, and less extraction time | Expensive | Cao et al. [179] |
SLDE | Naviglio Extractor® | 317.7 mg/g 3 h | 96% Ethanol | Simple application, exhaustion in a short period, production of high-quality extracts | Expensive | |
SMUAE | Microwave oven (CQ4250, Samsung) Ultrasonic bath (Elmasonic S10H) | 46.6Â mg/g 31Â min | Ethanol, Methanol, Acetone, Dichloromethane Potassium hydroxide, Hexane, Acetonitrile | Increased extraction efficiency | Not suitable for thermolabile natural products | |
MAE | IFB domestic microwave oven (model Neutron) | 45% 4Â h | Petroleum ether, water | Simple, rapid, and reliable | Not suitable for thermolabile natural products | Raman and Gaikar [30] |
UAE | – | 0.58% w/w 18 min | Ethanol, hexane, and acetone | Short running time, higher extractive yield, controllable parameters | Small particle size, more filtration steps | Shityakov et al. [183] |
SFE | – | 90–96% w/w 2–5 h | Liquid carbon dioxide | Efficient, selective, clean, fast | High cost, less pressure-resistant | Shityakov et al. [183] |