MODELING OPEN AIR AND SHADE DRYING OF CORYMBIA CITRIODORA LEAVES FOR THE ESSENTIAL OIL PRODUCTION

In the literature, the drying mechanism were generally analyzed in terms of effective diffusivity through the pseudo first order diffusion model. This process was revisited through the modified Peleg model, assuming the drying as a moisture desorption versus drying time. The leaves of Corymbia citriodora acclimatized in the Congo Brazzaville “Plateau des Cataractes” were dried in open air and under shade thanks to a domestic scale of essential oil production. One obtains following model parameters: kinetic constant k1: 0.8555 - 2.1355 d.(g/g)-1, extraction capacity constant K2: 1.5255 - 1.8733 (g/g)-1; end equilibrium moisture X∞ = 0.53 - 0.66 g/g. and first order drying kinetic constant k = K2/k1: 1.71 - 1.78 d-1. Pseudo first order diffusion model fits experimental data with k = 0.368 - 0.587 d-1 and t1/2 = 1,18 - 1,88 d.. These results needed for the optimization of proccess and sizing equipments came from a fast graphic data processing, with low computer inputs.

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BORO E MAGNÉSIO NA PRODUÇÃO DE ÓLEO ESSENCIAL DE Corymbia citriodora E TEOR DE CLOROFILA

FLORESTA ◽

10.5380/rf.v41i1.21178 ◽

2011 ◽

Vol 41 (1) ◽

Author(s):

Érica Alexandrino Fávaro ◽

Antônio Carlos Tadeu Vitorino ◽

Omar Daniel ◽

José Oscar Novelino

Keyword(s):

Essential Oil ◽

Chlorophyll Content ◽

Oil Production ◽

Block Type ◽

Climatic Variations ◽

Lemon Oil ◽

Red Latosol ◽

Corymbia Citriodora ◽

Essential Oil Production

Corymbia citriodora tem apresentado destacada importância na economia brasileira, por ser uma espécie pouco susceptível a variações edafoclimáticas, o que permite seu amplo cultivo nas diversas regiões do país, além de ser ótimo produtor de óleo essencial. O presente trabalho teve como objetivo estudar os efeitos dos nutrientes boro e magnésio na produção de óleo essencial de Corymbia citriodora e teor de clorofila. Dois experimentos foram realizados e analisados separadamente, sendo um utilizando Neossolo Quartzarênico (RQ) e outro com Latossolo Vermelho Distrófico (LVd), sendo as plantas cultivadas em vasos de 3,5 dm3 de solo. Os experimentos foram montados em sistema fatorial 4 x 5, quatro níveis de magnésio (0,0; 0,3; 0,6 e 0,9 cmolc.dm-3 de Mg) e cinco níveis de boro (0,00; 0,25; 0,50; 0,75 e 1,00 mg.dm-3 de B), dispostos no delineamento em blocos casualizados com quatro repetições. As mudas foram mantidas em casa de vegetação nos primeiros 15 dias e, sequencialmente, foram colocados em condições de luminosidade natural, onde ficaram por um período de seis meses. Os resultados obtidos permitiram concluir que os teores de B e Mg afetaram os teores de clorofila e o rendimento de óleo essencial em mudas de C. citriodora.Palavras-chave: Corymbia citriodora; óleo de eucalipto; nutrientes. AbstractBoron and Magnesium on Corymbia citriodora production and chlorophyll content. The Corymbia citrodora has been presented highlighted importance in the Brazilian economy, for being a little susceptive species to the pedo-climatic variations, what allows its cultivation in many regions besides being an excellent essential oil producer. The objective was to study the effect of the nutrients boron and magnesium on the Corymbia citriodora oil production and chlorophyll content. Two experiments had been carried through and analyzed separately, being one using Typic Quartzipsamment soil (RQ) and Typic Dystrophic Red Latosol (Oxisol) (LVd), where the plants had been cultivated in vases of 3,5 dm3. The experiments had been designed in factorial system 4 x 5, (0,0; 0,3; 0,6 and 0,9 cmolc dm-3 of Mg) and (0,00; 0,25; 0,50; 0,75 and 1,00 mg dm-3 of B), using the delineation block-type randomized with four repetitions. Seedlings were kept in a greenhouse in the first 15 days and sequentially placed in conditions of natural luminosity, where they had been for a period of 6 months. From the obtained results we can conclude that the contents of B and Mg had affected chlorophyll content and the essential oil production of C. citriodora seedlings.Keywords: Corymbia citriodora; eucalyptus lemon oil; nutrients.

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CHARACTERISTICS FOR THE SELECTION OF PARENTS OF Corymbia citriodora AIMING TO THE PRODUCTION OF WOOD AND ESSENTIAL OIL

Revista Árvore ◽

10.1590/1806-90882018000100018 ◽

2018 ◽

Vol 42 (1) ◽

Author(s):

Otávio dos Santos Limeira Luz ◽

Ana Beatriz Marques Honório ◽

Rodrigo Ribeiro Fidelis ◽

Ildon Rodrigues do Nascimento ◽

Cristiano Bueno de Moraes ◽

...

Keyword(s):

Essential Oil ◽

Oil Production ◽

Oil Yield ◽

Leaf Nitrogen Content ◽

Correlation Degree ◽

Genetic Dissimilarity ◽

Corymbia Citriodora ◽

Essential Oil Yield ◽

Essential Oil Production ◽

Selection Of

ABSTRACT This study aimed to identify the most important characteristics for the selection of parent trees of Corymbia citriodora by estimating genetic dissimilarity and linear correlation degree for wood and essential oil production. This study was conducted in experimental areas of the company JAMP Florestal -located in Dueré-TO -and at Universidade Federal do Tocantins (Federal University of Tocantins), campus Gurupi, from January to April 2014, in 19 parent trees based on 19 characteristics. With the data, the following steps were performed: clustering through Tocher’s optimization method; calculation of genetic dissimilarity between parents; quantification of relative contribution; and verification of correlation degree existing among the characteristics evaluated through Pearson correlation using the program GENES. The characteristics essential oil yield and heartwood diameter presented the major contributions for genetic dissimilarity. Thus, it must be prioritized for wood production: trees with lower values in crown height and sapwood diameter; and trees with higher values in total height, commercial height, diameter at breast height and stump diameter. For essential oil production, it must be prioritized trees with lower values in leaf width, bark thickness and sapwood diameter; and trees with higher values in leaf nitrogen content, leaf potassium content, total green biomass and total dry biomass, essential oil yield, essential oil content and crown volume.

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Evaluation of morphophysiological traits and essential oil production in Iranian genotypes and foreign varieties of Chamomile (Matricaria chamomilla L.) through multivariate analyses

Scientia Horticulturae ◽

10.1016/j.scienta.2021.110017 ◽

2021 ◽

Vol 282 ◽

pp. 110017

Author(s):

Parizad Mavandi ◽

Mohammad Hassan Assareh ◽

Abbas Dehshiri ◽

Hassan Rezadoost ◽

Vahid Abdossi

Keyword(s):

Essential Oil ◽

Multivariate Analyses ◽

Oil Production ◽

Matricaria Chamomilla ◽

Essential Oil Production

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Proliferating effect of radiolytically depolymerized carrageenan on physiological attributes, plant water relation parameters, essential oil production and active constituents of Cymbopogon flexuosus Steud. under drought stress

PLoS ONE ◽

10.1371/journal.pone.0180129 ◽

2017 ◽

Vol 12 (7) ◽

pp. e0180129 ◽

Cited By ~ 8

Author(s):

Minu Singh ◽

M. Masroor A. Khan ◽

Moin Uddin ◽

M. Naeem ◽

M. Irfan Qureshi

Keyword(s):

Drought Stress ◽

Essential Oil ◽

Oil Production ◽

Water Relation ◽

Plant Water ◽

Active Constituents ◽

Plant Water Relation ◽

Cymbopogon Flexuosus ◽

Physiological Attributes ◽

Essential Oil Production

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Essential Oil Production in Relation to Organogenesis in Tissue Cultures of Eucalyptus Citriodora Hook

Plant Cell Culture in Crop Improvement ◽

10.1007/978-1-4684-4379-0_29 ◽

1983 ◽

pp. 299-308 ◽

Cited By ~ 4

Author(s):

P. K. Gupta ◽

A. F. Mascarenhas

Keyword(s):

Essential Oil ◽

Oil Production ◽

Tissue Cultures ◽

Eucalyptus Citriodora ◽

Essential Oil Production

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Biomass production and essential oil yield from leaves, fine stems and resprouts using pruning the crown of Aniba canelilla (H.B.K.) (Lauraceae) in the Central Amazon

Acta Amazonica ◽

10.1590/s0044-59672012000300007 ◽

2012 ◽

Vol 42 (3) ◽

pp. 355-362 ◽

Cited By ~ 7

Author(s):

Adriana Pellegrini Manhães ◽

Valdir Florêncio da Veiga-Júnior ◽

Larissa Silveira Moreira Wiedemann ◽

Karenn Silveira Fernandes ◽

Paulo de Tarso Barbosa Sampaio

Keyword(s):

Essential Oil ◽

Oil Production ◽

Oil Yield ◽

Leaf Biomass ◽

Canopy Openness ◽

Tree Crown ◽

Wet Season ◽

Tree Cutting ◽

Essential Oil Yield ◽

Essential Oil Production

Aniba canelilla (H.B.K.) Mez. is a tree species from Amazon that produces essential oil. The oil extraction from its leaves and stems can be an alternative way to avoid the tree cutting for production of essential oil. The aim of this study was to analyse factors that may influence the essential oil production and the biomass of resprouts after pruning the leaves and stems of A. canelilla trees. The tree crowns were pruned in the wet season and after nine months the leaves and stems of the remaining crown and the resprouts were collected, in the dry season. The results showed that the essential oil yield and chemical composition differed among the stems, leaves and resprouts. The stems' essential oil production differed between the seasons and had a higher production in the resprouting stems than the old stems of the remaining crown. The production of essential oil and leaf biomass of resprouts were differently related to the canopy openness, indicating that light increases the production of the essential oil and decreases the biomass of resprouting leaves. This study revealed that plant organs differ in their essential oil production and that the canopy openness must be taken into account when pruning the A. canelilla tree crown in order to achieve higher oil productivity.

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