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Doctoral Thesis
DOI
https://doi.org/10.11606/T.85.2017.tde-16022017-142812
Document
Author
Full name
Fabio Vitorio Sussa
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2017
Supervisor
Committee
Silva, Paulo Sergio Cardoso da (President)
Genezini, Frederico Antonio
Nascimento Filho, Virgilio Franco do
Vilegas, Wagner
Wadt, Nilsa Sumie Yamashita
Title in Portuguese
Efeito do manejo agrícola, da sazonalidade e dos elementos traço na produção dos óleos voláteis de erva-cidreira (Melissa officinalis L.)
Keywords in Portuguese
Melissa officinalis
elementos traço
GC/MS
INAA
óleos voláteis
Abstract in Portuguese
Este trabalho é um estudo interdisciplinar envolvendo o cultivo de erva-cidreira (Melissa officinalis L.) e sua caracterização química. O objetivo deste estudo foi fornecer informação sobre a adubação orgânica e convencional, a sazonalidade e os efeitos dos elementos traço na produção dos óleos voláteis de Melissa officinalis. O modelo experimental utilizado foi em canteiros com delineamento inteiramente casualizados (DIC) com quatro repetições. Melissa officinalis foi submetida a diferentes sistemas de adubação e época de colheita. A concentração elementar foi determinada pela análise por ativação neutrônica instrumental (INAA), espectrometria de absorção atômica por forno de grafite (GF AAS) e espectrometria de emissão óptica com fonte de plasma indutivamente acoplado (ICP-OES) nas folhas de Melissa officinalis e nos solos de cultivo. Os óleos voláteis de Melissa officinalis foram extraídos pela técnica de hidrodestilação, utilizando-se o aparelho de Clevenger e os principais metabólitos secundários (citronelal, neral, geranial, citronelol, nerol e geraniol) foram determinados por cromatografia gasosa acoplada ao espectrômetro de massas (GC-MS). Primavera e verão apresentaram os óleos de melhor qualidade por possuírem menores teores de citronelol, nerol e geraniol. A formação de neral e geranial foi favorecida no manejo convencional correlacionado com a presença dos elementos Co, Cr, Mg e Ni presentes no solo, enquanto que a formação do citronelal foi favorecida no manejo orgânico correlacionado com o elemento Mn presente nas folhas de Melissa officinalis.
Title in English
Agricultural management, season and trace elements effect on volatile oil production from lemon balm (Melissa officinalis L.)
Keywords in English
Melissa officinalis
GC/MS
INAA
trace elements
volatile oil
Abstract in English
This work is an interdisciplinary study of Lemon balm cultivation (Melissa officinalis L.) and its chemical characterization. The objective of this study was to provide information about organic and mineral fertilization, season and trace elements effects on volatile oil production by the species Melissa officinalis. The experimental design was completely randomized with four replications. Melissa officinalis was under different fertilization and harvest season. Instrumental neutron activation analysis (INAA), graphite furnace atomic absorption spectrometry (GF AAS) and inductively coupled plasma optical emission spectrometry (ICP-OES) were applied to determine the elemental concentration in the soil and plant samples. The volatile oil was extracted by hydrodistillation and the compounds citronelal, neral, geranial, citronelol, nerol and geraniol were analyzed by gas chromatography coupled to a mass spectrometer (GC-MS). The best quality of the oil was obtained in spring and summer because the lower content of citronellol, nerol and geraniol. Neral and geranial formation was favored in the conventional management correlated with the presence of Co, Cr, Mg and Ni elements present in the soil, whereas citronellal formation was favored in organic management correlated with Mn element present in the Melissa officinalis leaves.
 
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2017SussaEfeito.pdf (6.96 Mbytes)
Publishing Date
2017-03-21
 
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