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Review Articles

Fenugreek bioactive compounds: A review of applications and extraction based on emerging technologies

ORCID Icon, , , , &
Published online: 11 Jun 2023
 

Abstract

Fenugreek (Trigonella foenum-graecum L.) is a pharmaceutically significant aromatic crop with health benefits linked to its phytochemicals. This article aims to overview progress in using emerging technologies to extract its bioactive compounds and extraction mechanisms. Also, the trends in the applications of this herb in the food industry and its therapeutical effects were explained. Fenugreek’s flavor is the primary reason for its applications in the food industry. At the same time, it has antimicrobial, antibacterial, hepatoprotection, anticancer, lactation, and antidiabetic effects. Phytochemicals responsible for these effects include galactomannans, saponins, alkaloids, and polyphenols. Besides, data showed that emerging technologies boost fenugreek extracts’ yield and biological activity. Among these, ultrasound (55.6%) is the most studied technology, followed by microwave (37.0%), cold plasma (3.7%), and combined approaches (3.7%). Processing conditions (e.g., treatment time and intensity) and solvent (type, ratio, and concentration) are significant parameters that affect the performance of these novel extraction technologies. Extracts obtained by sustainable energy-saving emerging technologies can be used to develop value-added health-promoting products.

HIGHLIGHTS

  • Fenugreek’s phytochemicals (e.g., galactomannans and polyphenols) have therapeutic effects

  • Ultrasound and microwave are major emerging technologies for fenugreek’s bioactive compound extraction

  • Emerging technologies enhance the yield and biological activities of fenugreek extracts

  • Emerging extraction technologies can develop fenugreek-based products with health benefits

Graphical abstract

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

The author(s) reported there is no funding associated with the work featured in this article.

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