Solvent-free microwave extraction: an eco-friendly and rapid process for green isolation of essential oil from lemongrass

被引：24

作者：

Boukhatem, Mohamed Nadjib ^{[1
,2
]}

Ferhat, Mohamed Amine ^{[3
]}

Rajabi, Mehdi ^{[2
]}

Mousa, Shaker A. ^{[2
]}

机构：

[1] Univ Saad Dahlab Blida 1, Dept Biol & Physiol Cellulaire, Fac Sci Nat & Vie, Blida, Algeria

[2] Albany Coll Pharm & Hlth Sci, Pharmaceut Res Inst, Rensselaer, NY 12144 USA

[3] Ecole Normale Super, Dept Chim, Lab Rech Prod Bioactifs & Valorisat Biomasse, Algiers, Algeria

来源：

NATURAL PRODUCT RESEARCH | 2022年 / 36卷 / 02期

关键词：

Lemongrass; essential oils; microwave extraction; green chemistry; gas chromatography-mass spectrometry; citral; CYMBOPOGON-CITRATUS; CHEMICAL-COMPOSITION;

D O I：

10.1080/14786419.2020.1795852

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The extraction of lemongrass essential oil (LGEO) using large quantities of solvents makes this extraction a hazardous and environmentally unfriendly procedure. Our aim was to find a suitable method for the improvement of its extraction and its quality. Solvent-Free Microwave Extraction (SFME) is a combination of dry distillation and microwave heating. SFME of LGEO was compared with conventional extraction hydrodistillation (HD). SFME is quicker than conventional HD. An extraction time of 15 min with SFME provided a yield of 0.6% comparable with that obtained after 120 min using HD. The composition of these oils revealed that the main components obtained with HD and SFME were both geranial (59.93% vs 44.59%, respectively). The quality of lemongrass is determined by its citral content, and a higher amount of citral was present in SFME oil (74%) in comparison with HD oil (60%). SFME is a green and a promising technology for the extraction of essential oils.

引用

页码：664 / 667

页数：4

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