Composition of the Essential Oil of Ocimum trichodon Grown in Rwanda

Ntezurubanza, L.; Scheffer, J. J. C.; Svendsen, A. Baerheim

doi:10.1021/np50047a042

Cited by 13 publications

(11 citation statements)

References 3 publications

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“…However, Ntezurubanza et al (1987) found that Ocimum basilicum leaf extracte contains many compounds (1, 8 cineol, eugenol, methyl-eugenol, thymol, p-cimene, cis-ocimene, and cis-caryophyllene) had an inhibition effect on growth of Staphylococcus aureus, Shigella flexneri, Salmonella enteritidis, Escherichia coli, Klebsiella sp., Proteus mirabilis, and Pseudomonas aeruginosa. Belynskaya and Kondrat (1990), on cut tulip flower, recorded increases in post harvest characters and water balance caused by pulsing flowers before storage in 6 % sucrose for 24 hrs.…”

Section: -1 Post Harvest Characteristics and Water Relationsmentioning

confidence: 99%

“…Furthermore, 8-HQS salts delayed senescence and eliminated bacterial growth, which was the principal reason for reduction water uptake and transport of gerbera flower (Abdel Kader, 1987). Sweet basil leaf extract components, also was previously reported as possess inhibition action on growth of Staphylococcus aureus, Shigella flexneri, Salmonella enteritidis, Escherichia coli, Klebsiella sp., Proteus mirabilis, and Pseudomonas aeruginosa (Ntezurubanza et al, 1987).…”

Section: Effect Of Pulsing Solution Treatments: 1-post Harvest Characmentioning

confidence: 99%

“…Inclusion of 300 mg/L of 8-HQC in the vase solution at the onset of the experiment prevented the increase in bacterial numbers in the basal end of cut stems and this completely prevented water stress symptoms. Also, Ntezurubanza et al, (1987) reported that adding Ocimum basilicum leaf extract to vase solution inhibited growth of Staphylococcus aureus, Shigella flexneri, Salmonella enteritidis, Escherichia coli, Klebsiella sp., Proteus mirabilis, and Pseudomonas aeruginosa.…”

Section: -2 Bacterial Countmentioning

confidence: 99%

“…Extract of sweet basil (Ocimum basilicum) leaves contains many compounds; i.e., 1, 8 cineol, eugenol, methyl-eugenol, thymol, p-cimene, cisocimene, and cis-caryophyllene. It inhibited organisms' growth of Staphylococcus aureus, Shigella flexneri, Salmonella enteritidis, Escherichia coli, Klebsiella sp., Proteus mirabilis, and Pseudomonas aeruginosa (Ntezurubanza et al, 1987). Also, chamomile (Matricaria chamomilla L.) flower extract contains flavonoids, including flavone glycosides such as apigenin 7-glucoside and flavonols as quercetin glycosides and luteolin glucosides (Srivastava & Gupta, 2007).…”

Section: Introductionmentioning

confidence: 99%

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Effect of Some Storage and Preservative Solution Treatments on Vase Life and Quality of Strelitzia Reginae L. Cut Flowers

Gendy

Hamad

2011

Journal of Productivity and Development

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Such research was conducted during the two seasons of 2007and 2008 at the Hort. Lab. Dept., Fac. Agric., Zagazig Univ. to evaluate effects of five preservative solutions as pulsing applications and three cold storage periods as well as their interactions on vase life and quality of Strelitzia reginae L cut flower spikes. Pulsing treatments were implicated holding cut flower spikes in the following solutions: 1-Distilled water (dw) for 12 h as control, 2-Silver thiosulphate at 1: 4 mM (STS)for 30 minutes, 3-STS for 30 min., then solution containing 20% sucrose (S) + 200 ppm Ocimum basilicum L leaf extract for 12 h, 4-STS for 30 min., then solution containing 20% S + 200 ppm Matricaria chamomilla L. flower extract for 12 h, and 5-STS for 30 min., then solution containing 20% S + 200 ppm 8-hydroxy quinolene sulphate (8-HQS) for 12 h. Cut flowers were subjected to pulsing treatments just before cold storage. The three tested cold storage periods were without cold storage (control), storage for 5 or 10-days at 6±1°C and 80 -90 % relative humidity (simulate transport conditions). After subjecting flowers to pulsing and storage treatments, treated cut flower spikes were hold in distilled water as permanent vase solution to record the effects on vase life.All tested pulsing solutions significantly increased vase life and florets opening %, decreased contamination in vase solution, improved water balance for cut flower spikes, and maintained flower quality; i.e., anthocyanin content in petals. Pulsing treatment of STS at 1: 4 mM for 30 minutes, then in solution containing 20 % S + 200 ppm 8-HQS for 12 hours had the most favorable effect in this respect.As the cold storage period was increased from zero-time to 10days, the above mentioned characters of cut flower longevity and quality were decreased.When pulsing applications interacted with cold storage periods, the highest quality and the longest vase life of Strelitzia reginae L. cut flower spikes were obtained under the interaction treatments of pulsing 398 GENDY AND HAMAD Atividade antibacteriana de óleos essenciais Pereira RS et al in STS for 30 min. and then in 20% S + 200 ppm 8-HQS for 12 hours without cold storage or with storage for 5-days at 6±1°C compared to control and the other interaction treatments.

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Section: -1 Post Harvest Characteristics and Water Relationsmentioning

confidence: 99%

Section: Effect Of Pulsing Solution Treatments: 1-post Harvest Characmentioning

confidence: 99%

Section: -2 Bacterial Countmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of Some Storage and Preservative Solution Treatments on Vase Life and Quality of Strelitzia Reginae L. Cut Flowers

Gendy

Hamad

2011

Journal of Productivity and Development

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“…The 48 essential oil samples and the fractions obtained by LSC were analysed by GLC using a gas chromatograph Packard 436s equipped with FID and connected with a digital integrator Packard 603 (Packard Instrument BV, Delft, The Netherlands). The 60 m capillary, fused silica column and the GC conditions were as described elsewhere (Ntezurubanza, Scheffer & Svendsen, 1986), except for the oven temperature, that was programmed from 60 to 200°C at 2°C min-'.…”

Section: Gas-liquid Chromatography (Glc)mentioning

confidence: 99%

Composition of the essential oils of Ocimum urticifolium (Lamiaceae) chemotypes grown in Rwanda

Ntezurubanza

Scheffer

Svendsen

1988

Botanical Journal of the Linnean Society

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NTEZURUBANZA, L., SCHEFFER, J. J. C. & SVENDSEN, A. B., 1988. Composition of the essential oils of Ocimum urticifolium (Lamiaceae) chemotypes grown in Rwanda. Leaves and flowers of 48 specimen of Ocimum urticifolium (synonym: O. suave), Lamiaceae, were collected in different parts of Rwanda. The volatile components of each specimen were isolated by hydrodistillation under standardized conditions, and the 48 essential oils analysed by thin‐layer chromatography. This preliminary analysis showed six different oil compositions. Thereafter, six oil samples were fractionated by liquid—solid chromatography. The fractions thus obtained, and all other oil samples were then analyzed by capillary gas chromatography. In this way 46 compounds were identified in the various oil samples. Eight components, which amounted to more than 10% in at least one oil sample, were used to characterize the oils. Twelve oil types were distinguished, three of which were dominated by one component only: eugenol, methyleugenol and transmethylisoeugenol respectively. The other types were more complex. In some parts of Rwanda almost one oil type seemed to occur, whereas in other areas a more heterogeneous collection of types was found. Eugenol was quantitatively most important in 31 of the 48 oil samples, in 22 of which this component amounted to more than 50%.

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The essential oils ofOcimum canum Sims (basilic camphor) andOcimum urticifolia Roth from Zimbabwe

2000

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Composition of the Essential Oil of Ocimum trichodon Grown in Rwanda

Cited by 13 publications

References 3 publications

Effect of Some Storage and Preservative Solution Treatments on Vase Life and Quality of Strelitzia Reginae L. Cut Flowers

Effect of Some Storage and Preservative Solution Treatments on Vase Life and Quality of Strelitzia Reginae L. Cut Flowers

Composition of the essential oils of Ocimum urticifolium (Lamiaceae) chemotypes grown in Rwanda

The essential oils ofOcimum canum Sims (basilic camphor) andOcimum urticifolia Roth from Zimbabwe

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