Yield and composition of the essential oil of Mentha piperita L. (Lamiaceae) grown with biosolid

Abstract

This research evaluated the effects of biosolid levels on yield and chemical composition of Mentha piperita L. essential oil. Mint plants were grown in a greenhouse in pots containing the equivalent to 0, 28, 56, and 112 t.ha-1 biosolid. Three evaluations were made at 90, 110, and 120 days after planting (DAP). The oil was extracted from the dry matter of shoots by hydrodistillation, and composition was determined by GC/MS. Oil production was slightly affected by the biosolid, increasing when plants were grown with 28 t.ha-1, a condition which did not result in quality improvement. Menthyl acetate was the component obtained at the highest percentage in all treatments. At 90 DAP, plants showed a higher percentage of menthol, the second-highest oil constituent, with a content of 42.3% in plants grown without biosolid. The presence of biosolid favored menthofuran formation. As with menthol, menthone decreased with plant development. Under these conditions, plant harvesting is recommended at 90 DAP, period in which the menthol level was higher. Since the production of biosolid is on the rise, a suitable destination must be given to it, and restrictions exist for its use in relation to the environment and plants. Thus, although cultivation with 28 t.ha-1 is within the limits allowed by law, such a rate, which increased oil yield, did not improve oil quality. Therefore, biosolid from the Barueri Station is not recommended for cultivation of this specie.

Development of mint (Mentha piperita L.) grown on biosolids: evaluation of productivity and essential oil content

“…Similar results were observed by Scora and Chang (1997) in M. piperita L., who did not observe oil yield differences among plants grown with biosolids applications at 100 days after transplanting. Although in the present work, a biosolids effect in essential oil yield was not observed, Scavroni et al (2005) reported that biosolids promoted alterations on M. piperita L. essential oil composition under the same conditions used here. For the essential oil content, which results from secondary metabolism, two considerations can be done.…”

Effect of NaCl and iron oxide nanoparticles on Mentha piperita essential oil composition

“…Veronese et al (2001) reported that biotic and abiotic agents affect essential oil composition in M. piperita. These findings were confirmed in other studies on fertilization effect on the development of this plant (Scavroni et al 2005). Treatment with different levels of nitrogen affects essential oil formation (Piccaglia et al 1993).…”

“…The findings of other investigations (Charles et al 1990;Tabatabaie et al 2007) on mint grown in various osmotic stress levels produced similar results. Scavroni et al (2005) showed that biosolid was harmful for formation of menthol. Tounekti et al (2008) studied the effect of increasing concentrations of NaCl on the essential oil composition of Rosmarinus officinalis.…”

Produção e qualidade do óleo essencial de menta em hidroponia com doses de potássio

“…O limoneno é o precursor da carvona e, por reações sucessivas a partir da pulegona, pode formar mentona, mentol, isomentona, neoisomentol e/ou mentofurano. A interconversão dos componentes de um a outro é determinada geneticamente e pode ser afetada por fatores agronômicos (MAIA et al, 2001;TELCI et al, 2004;SCAVRONI et al, 2005). Com base nisso, as condições de variação nas concentrações de K nas soluções hidropônicas às quais as plantas de M. x gracilis foram submetidas favoreceram a formação dos compostos linalol, carvona e cis-hidrato de sabineno.…”