What is it about?
The dried Mentha spicata leaves were ground in a mill and extd. with H2O, anhyd. Organic solvents (MeOH, EtOH, (Me)2CO and CH3CN) and their 50% aq. solns. The extn. was carried out at 35°C for 40 min in the presence of ultrasound. The extracts contained 3.90–168.0 mg/100 g (in gallic acid equiv.) of phenolic coupds. and 21.3–326.2 mg/100 g (in rutin equiv.) of flavonoids. The greatest yield of extn. of phenolic compds. and flavonoids was obtained in the presence of 50% aq. solns. of EtOH and acetone. The exts. showed an antioxidant activity as detd. with 1,1-diphenyl- 2-picrylhydrazyl radical.
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Why is it important?
Optimization of the extraction of polyphenols from the Mentha spicata raw material indicates which parameters of the extraction process are most favorable in economic and environmental terms. At the same time, it confirms that extraction conditions should be optimized depending on the plant matrix even in the case of mint species, which have been shown to have a different matrix and should be extracted from polyphenols under different conditions.
Perspectives
I hope that this article simply indicated that the content of active substances in plant materials depends on the solvent and its properties.
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University of Life Sciences in Lublin, Department of Vegetable Crops and Medicinal Plants
Read the Original
This page is a summary of: Optymalizacja ekstrakcji polifenoli z Mentha spicata różnymi rozpuszczalnikami, PRZEMYSŁ CHEMICZNY, August 2019, Wydawnictwo SIGMA-NOT, sp. z.o.o.,
DOI: 10.15199/62.2019.8.16.
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