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Plumbagin quantification in roots of Plumbago scandens L. obtained by different extraction techniques Anais da ABC (AABC)
Paiva,Selma R. de; Lima,Lucilene A.; Figueiredo,Maria Raquel; Kaplan,Maria Auxiliadora C..
The Plumbago genus belongs to the Plumbaginaceae family and it is known due to its variety of biological uses, most of them attributed to the presence of naphthoquinones. Plumbagin is a naturally occurring naphthoquinone that can be obtained from roots of Plumbago scandens L. In order to find out the better technique for plumbagin extraction, were applied: static maceration, dynamic maceration, with assistance of ultrasonic waves and in Soxhlet apparatus. Four compounds were qualitatively detected in all extracts: the naphthoquinones plumbagin and epi-isoshinanolone, palmitic acid and sitosterol. Plumbagin was always the major component in all analyzed extracts and it was quantitatively determined by gas chromatograph coupled with mass spectrometer....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plumbaginaceae; Plumbago scandens L.; Plumbagin; Extraction techniques.
Ano: 2004 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652004000300004
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Antifungal activity of extracts from Piper aduncum leaves prepared by different solvents and extraction techniques against dermatophytes Trichophyton rubrum and Trichophyton interdigitale BJM
Santos,Maximillan Leite; Magalhães,Chaiana Froés; Rosa,Marcelo Barcellos da; Santos,Daniel de Assis; Brasileiro,Beatriz Gonçalves; Carvalho,Leandro Machado de; Silva,Marcelo Barreto da; Zani,Carlos Leomar; Siqueira,Ezequias Pessoa de; Peres,Rodrigo Loreto; Andrade,Anderson Assunção.
The effects of different solvents and extraction techniques upon the phytochemical profile and anti-Trichophyton activity of extracts from Piper aduncum leaves were evaluated. Extract done by maceration method with ethanol has higher content of sesquiterpenes and antifungal activity. This extract may be useful as an alternative treatment for dermatophytosis.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Antifungal activity; Piper aduncum L.; Dermatophytes; Trichophyton; Extraction techniques.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400035
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Quantification of Vibrio penaeicida, the etiological agent of Syndrome 93 in New Caledonian shrimp, by real-time PCR using SYBR Green I chemistry ArchiMer
Goarant, Cyrille; Merien, F.
Shrimp farming is a small but growing industry in New Caledonia. Since 1993, "Syndrome 93" has been affecting New Caledonian shrimp farming industry every cold season, causing severe epizootic mortalities in grow-out ponds and significant losses. Highly pathogenic strains of Vibrio penaeicida are considered the etiological agent of the disease in Litopenaeus stylirostris. On one hand, studies demonstrated that healthy shrimp may carry V penaeicida for weeks with a high overall prevalence, regardless of any seasonal pattern or temperature conditions. On the other hand, larvae are free of V penaeicida and are also resistant to experimental infection. V penaeicida is frequently detected in incoming water pumped from the bays, which was shown, by a molecular...
Tipo: Text Palavras-chave: Vibriosis; Vibrio; Real time PCR; Quantification; Mariculture; Extraction techniques.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1903.pdf
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