Cumin herb as a new source of essential oils and its response to foliar spray with some micro-elements

El-Sawi, S. A.; Mohamed, M. A.

doi:10.1016/s0308-8146(01)00326-0

Cited by 72 publications

(49 citation statements)

References 8 publications

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“…18 These micronutrient effects should be associated with a strict requirement for sesquiterpene synthases for a divalent metal ion as cofactor, which have also influenced the number of byproducts obtained from these reactions. 20 The formation of g-humulene is promoted by Mn 2+ ions whereas the amounts of all other by-products are reduced.…”

Section: Resultsmentioning

confidence: 99%

“…16 Micronutrient fertilizers (Cu, Zn, Mn, and Fe) have also shown significant effects on oil yields and contents of marjoram, mint, geranium, rosemary, and cumin. 15,17,18 Therefore, oil constituent data (set 1) and edaphoclimatic factor data (set 2) were jointly analysed via canonical correlation analysis (CCA), a multivariate treatment that describes correlations between two data sets (Table 2). 19 The method makes it possible to assess new variables called canonical variates (CVs) so that they exhibit the highest correlations that may be found between the two data groups.…”

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confidence: 99%

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Genetic and environmental influence on essential oil composition of Eugenia dysenterica

Duarte¹,

Naves²,

Santos³

et al. 2010

J. Braz. Chem. Soc.

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A composição dos óleos essenciais de Eugenia dysenterica de populações silvestres de Senador Canedo (SC) e Campo Alegre de Goiás (CA) e de plantas cultivadas, crescidas adjacentemente a partir de sementes dos dois sítios de amostragem, indicou a presença de dois grupos de óleos relacionados à origem das amostras. O grupo I incluiu amostras de SC, seja da população cultivada (subgrupo IA), com percentagens elevadas de a-pineno (5,9-13%), b-pineno (6,6-14%) e (Z)-b-ocimeno (0-13%), seja da silvestre (subgrupo IB), com percentagens elevadas de g-cadineno (21-34%), limoneno (1,3-28%) e óxido de cariofileno (1,5-14%). O grupo II incluiu amostras cultivadas e silvestres de CA, com b-cariofileno (15-44%), d-cadineno (6,4-21%) e a-copaeno (4,4-14%) como majoritários. A correlação canônica revelou que limoneno, g-cadineno, óxido de cariofileno, Zn, Cu, Fe, Mn, temperatura e precipitação média mensal correlacionaram-se às amostras silvestres de SC, enquanto (Z)-b-ocimeno, a-copaeno, b-cariofileno, a-humuleno, d-cadineno e P correlacionaram-se às amostras silvestres de CA e a todas as amostras cultivadas, independentemente da origem da semente. As variações nos óleos parecem ser geneticamente determinadas, em adição a uma influência ambiental sobre as amostras de SC.The composition of the essential oil of Eugenia dysenterica collected from wild populations in Senador Canedo (SC) and Campo Alegre de Goiás (CA), as well as from cultivated plants growing adjacently from seeds at the same sites has indicated the presence of two oil clusters related to sampling origin. Cluster I included only SC samples, either from the cultivated population (subcluster IA) with high percentages of a-pinene (5.9-13%), b-pinene (6.6-14%) and (Z)-b-ocimene (0-13%), or from the wild population (subcluster IB) with high contents of g-cadinene (21-34%), limonene (1.3-28%) and caryophyllene oxide (1.5-14%). In cluster II, which included wild and cultivated samples originating from CA seeds, the major constituents were b-caryophyllene (15-44%), d-cadinene (6.4-21%) and a-copaene (4.4-14%). The canonical correlation revealed that limonene, g-cadinene, caryophyllene oxide, Zn, Cu, Fe, Mn, and mean monthly temperature and precipitation values were quite strongly related to SC wild samples (subcluster IB), whereas (Z)-b-ocimene, a-copaene, b-caryophyllene, a-humulene, d-cadinene, and P were related to CA wild samples as well as to all cultivated samples regardless of seed origin. The chemovariation might be genetically determined. In addition, SC samples showed a clear environmental influence. Its fruits are appreciated for their taste and they are consumed in natura or processed to produce jams and ice Genetic and Environmental Influence on Essential Oil Composition of Eugenia dysenterica J. Braz. Chem. Soc. 1460 creams. Moreover, they are harvested by extractive and predatory methods. Keywords6 Studies based on genetic diversity have shown a complex pattern of genetic variation in the geographic space of E. dysenterica wild populations, 7,8 which m...

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Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Genetic and environmental influence on essential oil composition of Eugenia dysenterica

Duarte¹,

Naves²,

Santos³

et al. 2010

J. Braz. Chem. Soc.

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“…28 On the other hand, several studies have reported the effects of nutrients on essential oil biosynthesis. 29 The availability of nutrients to plants may influence the concentration of oil yields and therefore modify interactions between plants and herbivores. 30 The volatile constituent data (set 1), two foliar chemicals (phenolic compounds and nutrients), and climatic factor data (set 2) were jointly analyzed via Canonical Correlation analysis (CCA), a multivariate treatment that describes correlations between two sets of data (Table 2).…”

Section: Resultsmentioning

confidence: 99%

“…29 Additionally, micronutrient effects should be associated with a requirement for sesquiterpene synthases for a divalent metal ion as cofactor, which have also influenced the number of by-products obtained in these reactions. 32 Other studies have also revealed that the contents of the majority of volatile constituents varied significantly in different seasons, 33 including Cerrado species such as Lychnophora and Baccharis.…”

Section: Resultsmentioning

confidence: 99%

Seasonal variability of essential oils of Eugenia uniflora leaves

Costa¹,

Santos²,

Seraphin³

et al. 2009

J. Braz. Chem. Soc.

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A influência sazonal na composição química dos óleos essenciais das folhas de Eugenia uniflora de um biótipo de cor de fruto vermelho-alaranjado indicou a presença de dois grupos de óleos em relação às duas estações do Cerrado brasileiro. O grupo I incluiu amostras coletadas na estação seca (abril-setembro), caracterizadas por conterem as mais altas percentagens de espatulenol (10%) e óxido de cariofileno (4,1%). No grupo II, com amostras coletadas na estação úmida (outubro-março), o constituinte majoritário foi o epóxido de selina-1,3,7(11)-trien-8-ona (29%). A correlação canônica indicou que o espatulenol e o óxido de cariofileno apresentaram um forte relacionamento com o balanço de nutrientes (S, Ca, Fe) e os fenólicos foliares, enquanto o epóxido de selina-1,3,7(11)-trien-8-ona foi correlacionado ao conteúdo de K, Cu, Mn e a precipitação nos meses da estação úmida. Os sesquiterpenos oxigenados predominaram em todas as amostras e a variação química nos óleos essenciais parece ser determinada pelo ambiente com uma clara influência sazonal.Seasonal influence on the chemical composition of essential oils of Eugenia uniflora leaves with red-orange fruit colour biotype has indicated the presence of two oil clusters in the two seasons of the Brazilian Cerrado. Cluster I included samples collected during dry months (April-September) which were characterized by the highest percentages of spathulenol (10%) and caryophyllene oxide (4.1%). In cluster II, whose samples were collected during wet months (October-March), the major constituent was selina-1,3,7(11)-trien-8-one epoxide (29%). The canonical correlation indicated that spathulenol and caryophyllene oxide revealed a strong relationship with the phenolics and nutrient balance (S, Ca, Fe) in leaves, whereas selina-1,3,7(11)-trien-8-one epoxide was related to K, Cu, Mn, and precipitation during the months of the wet season. Oxygenated sesquiterpenes were predominant in all the sampling months and the oil chemovariation observed might be environmentally determined by a clear seasonal influence.Keywords: Eugenia uniflora, Myrtaceae, essential oil, seasonal influence, principal component analysis, canonical correlation analysis IntroductionEugenia uniflora L. (Myrtaceae) is a Brazilian shrubby tree with edible cherry-like fruits which is locally known as "pitangueira". Its leaves have been used in folk medicine for the treatment of diarrhea, 1,2 inflammation, 1 hyperglycemia, hyperlipidemia, hypertriglycemia, 3,4 and hypertension. In addition, they have been used as an antimalarial [5][6][7] and spasmolytic agent 6,8 as well as an inhibitor of DNA polymerase, maltase, sucrase, and α-glucosidase. 4,9Phytochemical studies have mainly focused on the essential oil and polyphenolic constituents of the leaf. [9][10][11][12][13][14][15][16] Antimicrobial activities have been reported for essential oils and expressed juice, including bacterial and dermatophyte isolates. [17][18][19] Previous studies have identified the ellagitannin oenothein B as responsible for the inhibition ...

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“…The application of cumin seeds for TCE biodegradation and bioremediation would be preferred because they are abundant in many countries and are considered nontoxic to humans. However, plant varieties, harvesting period and planting conditions have been shown to affect the quantities of cumin essential oils as well as the types of oil components (Beis et al 2000;El-Sawi and Mohamed 2002;Jalali-Heravi et al 2007). This would lead to the variation in TCE-degrading enzyme induction by different batches of the seeds.…”

Section: Efficiency Of Plant Essential Oil Components As Inducers Formentioning

confidence: 99%

Trichloroethylene cometabolic degradation by Rhodococcus sp. L4 induced with plant essential oils

2008

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Cometabolic degradation of TCE by toluene-degrading bacteria has the potential for being a cost-effective bioremediation technology. However, the application of toluene may pose environmental problems. In this study, several plant essential oils and their components were examined as alternative inducer for TCE cometabolic degradation in a toluene-degrading bacterium, Rhodococcus sp. L4. Using the initial TCE concentration of 80 microM, lemon and lemongrass oil-grown cells were capable of 20 +/- 6% and 27 +/- 8% TCE degradation, which were lower than that of toluene-grown cells (57 +/- 5%). The ability of TCE degradation increased to 36 +/- 6% when the bacterium was induced with cumin oil. The induction of TCE-degrading enzymes was suggested to be due to the presence of citral, cumin aldehyde, cumene, and limonene in these essential oils. In particular, the efficiency of cumin aldehyde and cumene as inducers for TCE cometabolic degradation was similar to toluene. TCE transformation capacities (T (c)) for these induced cells were between 9.4 and 15.1 microg of TCE mg cells(-1), which were similar to the known toluene, phenol, propane or ammonia degraders. Since these plant essential oils are abundant and considered non-toxic to humans, they may be applied to stimulate TCE degradation in the environment.

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Cumin herb as a new source of essential oils and its response to foliar spray with some micro-elements

Cited by 72 publications

References 8 publications

Genetic and environmental influence on essential oil composition of Eugenia dysenterica

Genetic and environmental influence on essential oil composition of Eugenia dysenterica

Seasonal variability of essential oils of Eugenia uniflora leaves

Trichloroethylene cometabolic degradation by Rhodococcus sp. L4 induced with plant essential oils

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