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In soxhlet extraction, Optimum conditions were extraction time of 6 h for ethanol 80 % as solvent. Results were compared with those obtained by soxhlet extraction. Optimal condition in microwave assisted method were ethanol 80 % as solvent, extraction time of 5-6 min and liquid/solid ratio of 12.7/1. The results showed that extraction conditions had significant effect on the extraction yield of phenolic compounds and antioxidant capacities. Experiments were designed according to the central composite rotatable design. Investigated factors were solvent (ethanol 80 %, methanol 80 % and water), liquid/solid ratio (10:1-25:1) and time (2-6 min). In present study, response surface methodology was used to optimize extraction condition of phenolic compounds from licorice root by microwave application. Karami, Zohreh Emam-Djomeh, Zahra Mirzaee, Habib Allah Khomeiri, Morteza Mahoonak, Alireza Sadeghi Aydani, Emad Optimization of microwave assisted extraction (MAE) and soxhlet extraction of phenolic compound from licorice root. A sensory evaluation test showed the presence of off-flavours in oil samples extracted by Soxhlet and US, an indicator of partial degradation. All these non-conventional techniques are fast, effective and safe. Supercritical CO₂ was also employed and compared to the other techniques in term of yield, extraction time, fatty acid profiles and organoleptic properties. Kiwi seeds were extracted in hexane using classic Soxhlet as well as under power ultrasound (US), microwaves (MWs closed vessel) and MW-integrated Soxhlet. For these reasons and with the aim to achieve process intensification with shorter extraction time, lower energy consumption and higher yields, four different non-conventional techniques were experimented. Kiwi seed oil has a nutritionally interesting fatty acid profile, but a rather low oxidative stability, which requires careful extraction procedures and adequate packaging and storage.

Extraction of kiwi seed oil: Soxhlet versus four different non-conventional techniques.Ĭravotto, Giancarlo Bicchi, Carlo Mantegna, Stefano Binello, Arianna Tomao, Valerie Chemat, Farid