The ideal timing for harvesting Mentha arvensis L. for production of essential oil and menthol, for the state of Ceará, Brazil
DOI:
https://doi.org/10.70151/wcv6rm15Keywords:
Medicinal plants, Lamiaceae, volatile oils, mentholAbstract
This research aimed to find the ideal moment for harvesting Mentha arvensis L. var. piperacens Holmes in the conditions of climate of Brazil's northeast. Mentha arvensis L. is a medicinal and aromatic herb that contains essential oil rich in menthol which is much used in the chemical, pharmaceutical, and food industries. The experiments were carried out at the Experimental Farm of the Curu Valley, by CCA/UFC, in Pentecoste, state of Ceará, Brazil, during the two well-defined climatic seasons of the region, the rainy (January- June) and the dry (July-December). Treatments consisted of seven harvesting times: 60, 67, 74, 81, 88, 95, and 102 days after planting. Results showed a positive correlation between the production of dry matter and of essential oil, cut 81 days after planting (111 days of total age) in the two seasons studied, when the higher productions were obtained of essential oil and of menthol.
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