Note! Please note that this article is currently in the "Article in Press" stage and is not the final "Version of record". While it has been accepted, copy-edited, and formatted, however, it is still undergoing proofreading and corrections by the authors. Therefore, the text may still change before the final publication. Although "Articles in Press" may not have all bibliographic details available, the DOI and the year of online publication can still be used to cite them. The article title, DOI, publication year, and author(s) should all be included in the citation format. Once the final "Version of record" becomes available the "Article in Press" will be replaced by that.
Abstract
Background: Essential oils are utilized in various food applications and are a rich source of naturally occurring volatile components. The extraction of essential oils has used conventional techniques for several years, but these methods require a long duration of time, more solvent, and high energy. However, recent advancements have led to novel and eco-friendly techniques that significantly enhance the essential oil yield while minimizing the use of resources.
Method: This study describes the recent research on the extraction of essential oils and their components, focusing on microwave-assisted extraction (MAE) and ultrasound-assisted extraction (UAE).
Result: This review explores the instrumentation, mechanism, and applications behind MAE and UAE. It also describes the emerging technologies for the extraction of essential oils, along with their optimized conditions.
Conclusion: These techniques represent a more sustainable and efficient approach for the extraction of essential oil from various plant sources, aligning with the principles of green chemistry.