The Influence of Microwave Treatments on Bioactive Compounds and Antioxidant Capacity of Mentha piperita L

Microwave extraction is becoming a popular option in many fields, especially for bioactive compounds from medicinal plants. This paper addresses the application of microwaves in the process of extracting bioactive compounds (phenols, flavonoids, chlorophyll) from peppermint with antioxidant capacity...

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Bibliographic Details
Published in:Materials 2022-11, Vol.15 (21), p.7789
Main Authors: Bandici, Livia, Teusdea, Alin Cristian, Soproni, Vasile Darie, Hathazi, Francisc Ioan, Arion, Mircea Nicolae, Molnar, Carmen Otilia, Vicas, Simona Ioana
Format: Article
Language:English
Subjects:
Acids
Antioxidants
Biological activity
Chlorophyll
Dielectric properties
Electromagnetism
Flavonoids
Heat
Herbal medicine
Influence
Microorganisms
Microwaves
Multivariate analysis
Oils & fats
Peppermint
Pharmaceutical industry
Phenols
Polyphenols
Research methodology
Solvents
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Summary:Microwave extraction is becoming a popular option in many fields, especially for bioactive compounds from medicinal plants. This paper addresses the application of microwaves in the process of extracting bioactive compounds (phenols, flavonoids, chlorophyll) from peppermint with antioxidant capacity in order to highlight the influence of the microwave field on the quality of the final product in comparison with the control samples. The Mentha piperita L. is a rich source of phenols. The total phenol content after applying the MW treatments significant increased and varied between 25.000 ± 1.992 and 391.687 ± 20.537 mg GAE/100 g dw compared to the untreated sample (8.089 ± 2.745 mg GAE/100 g dw). The same trend was also recorded in the case of the flavonoid and pigment content in peppermint leaves following the application of microwave treatments. The obtained results were investigated using chemometric multivariate analysis. The main purpose of our research was to compare the possibilities of total or partial substitution of conventional extraction technologies with the microwave extraction technology, and also to highlight the existing differences in the amount of total phenols and flavonoids extracted from peppermint plants in different processing conditions. Through microwave processing, a significant increase in polyphenolic compounds is obtained.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma15217789