LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Zurück zur letzten Suche Suchhistorie
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Jazia Sriti"
  2. AU="Schaaf, L van der"
  3. AU="Ginocchi, Laura"
  4. AU="Vassilopoulos, Stéphane"
  5. AU="Rosendahl Huber, Axel"
  6. AU="Andreotti, Renato"
  7. AU="So, J B Y"
  8. AU="Masamizu Oyama"
  9. AU=Crick James M.
  10. AU="Geiger, Jennifer M"
  11. AU=Massaro Donald
  12. AU="Mao Wen"
  13. AU="Clark, Audra T"
  14. AU="Robello, Carlos"
  15. AU="Hiemstra, P S"
  16. AU="Mubin, Omar"
  17. AU="Dong, Ze-Han"
  18. AU="Küfner, Laura"
  19. AU="Iwao, Masao"
  20. AU="Suárez, Alírica Isabel"

Suchergebnis

Treffer 1 - 5 von insgesamt 5

Suchoptionen

  1. Artikel ; Online: Chemical composition and antioxidant activity of the coriander cake obtained by extrusion

    Jazia Sriti / Iness Bettaieb / Olfa Bachrouch / Thierry Talou / Brahim Marzouk

    Arabian Journal of Chemistry, Vol 12, Iss 7, Pp 1765-

    2019  Band 1773

    Abstract: This study was designed to examine the effect of operating conditions on essential oil composition and antioxidant activity of coriander cakes. Twenty-nine components were determined in essential oils, which were mostly alcohol monoterpenes. The highest ... ...

    Abstract This study was designed to examine the effect of operating conditions on essential oil composition and antioxidant activity of coriander cakes. Twenty-nine components were determined in essential oils, which were mostly alcohol monoterpenes. The highest essential oil yields (0.11%) were obtained by the nozzle diameter of 5 mm. The main components of cake essential oil linalool, γ-terpinene, geranyl acetate, linalyl acetate and camphor showed significant variations with different nozzle diameter.The total phenol contents and condensed flavonoid contents varied between different nozzle diameters; the highest values obtained of small diameters (5 and 6 mm). Significant differences were also found in total tannin contents among different nozzle diameters. The total phenol contents decreased significantly (p < 0.05) when increased the nozzle diameter to 9 mm and reached 9.11 mg GAE/g.The screening of antioxidant activity of the different coriander cakes using the di(phenyl)-(2,4,6-trinitrophenyl) iminoazanium radical (DPPH) assay showed an appreciable reduction of the stable radical DPPH, although small nozzle diameter was the most efficient method with an IC50 reached of 55 μg/ml as compared with bigger diameter (IC50 = 88 μg/ml).All the extracts had lower β-carotene bleaching activity than that of synthetic antioxidant BHA and BHT. Coriander cake extracts presented a very low reducing power ability (EC50 ≈ 700 μg/ml) compared to ascorbic acid (EC50 = 40 μg/ml). Keywords: Coriander, Fruit, Extrusion, Cake, Essential oil, Antioxidant activity
    Schlagwörter Chemistry ; QD1-999
    Thema/Rubrik (Code) 540
    Sprache Englisch
    Erscheinungsdatum 2019-11-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  2. Artikel ; Online: Biochemical Characterization of Coriander Cakes Obtained by Extrusion

    Jazia Sriti / Manel Neffati / Kamel Msaada / Thierry Talou / Brahim Marzouk

    Journal of Chemistry, Vol

    2013  Band 2013

    Abstract: This study was designed to examine the effect of operating conditions such as nozzle diameter on fatty acid, sterol, and tocol composition of coriander cakes. Eight fatty acids were identified, with petroselinic acid accounting for 75–77% of the total ... ...

    Abstract This study was designed to examine the effect of operating conditions such as nozzle diameter on fatty acid, sterol, and tocol composition of coriander cakes. Eight fatty acids were identified, with petroselinic acid accounting for 75–77% of the total fatty acids, followed by linoleic, oleic, and palmitic acids, accounting for 12-13%, 5%, and 3%, respectively, of the total fatty acids. β-Sitosterol was the major sterol in all oils with 33–35% of total sterols. The next major sterols in all oils were stigmasterol (24% of total sterols) and Δ7-stigmasterol (15% of total sterols). Coriander cake contained higher amounts of total tocotrienol where γ-tocotrienol was the main compound.
    Schlagwörter Chemistry ; QD1-999
    Sprache Englisch
    Erscheinungsdatum 2013-01-01T00:00:00Z
    Verlag Hindawi Limited
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  3. Artikel: Regional effect on essential oil composition and antimicrobial activity of Thymus capitatus L

    Tammar, Sonia / Nidhal Salem / Ines Bettaieb Rebey / Jazia Sriti / Majdi Hammami / Saber Khammassi / Brahim Marzouk / Riadh Ksouri / Kamel Msaada

    Journal of essential oil research. 2019 Mar. 4, v. 31, no. 2

    2019  

    Abstract: A biochemical characterization and a geographic variability of Thymus capitatus L. essential oils were undertaken. Chromatographic analysis using gas chromatography-flame ionization detector and gas chromatography-mass spectrometry of essential oils ... ...

    Abstract A biochemical characterization and a geographic variability of Thymus capitatus L. essential oils were undertaken. Chromatographic analysis using gas chromatography-flame ionization detector and gas chromatography-mass spectrometry of essential oils extracted from thyme aerial parts from four Tunisian regions (Kef, Bizerte, Boukornine and Grombalia) showed the predominance of carvacrol (75.79 ± 2.07%) in Boukornine region, thyme essential oils being carvacrol chemotype. Obtained results of antimicrobial activities showed that thyme essential oil has important antibacterial activity which was strongly related to the organoleptic quality of the oil which appeared strongly region-dependent. The inhibitory effect of thyme essential oils on the bacteria and fungi development showed that Bacillus cereus and Fusarium solani were the most sensitive bacteria and fungi, respectively. From these results, we have concluded that thyme essential oil could be used to cure mycotic infections and may have role as pharmaceutical and preservative agents.
    Schlagwörter Bacillus cereus ; Coridothymus capitatus ; Fusarium solani ; aerial parts ; antibacterial properties ; bacteria ; carvacrol ; chemotypes ; essential oils ; fungi ; gas chromatography-mass spectrometry ; geographical variation ; ionization ; oils ; sensory properties ; thyme
    Sprache Englisch
    Erscheinungsverlauf 2019-0304
    Umfang p. 129-137.
    Erscheinungsort Taylor & Francis
    Dokumenttyp Artikel
    ZDB-ID 2197652-1
    ISSN 2163-8152 ; 1041-2905
    ISSN (online) 2163-8152
    ISSN 1041-2905
    DOI 10.1080/10412905.2018.1539415
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

  4. Artikel ; Online: Phenological stage effect on phenolic composition and repellent potential of Mentha pulegium against Tribolium castaneum and Lasioderma serricorne

    Nidhal Salem / Jazia Sriti / Olfa Bachrouch / Kamel Msaada / Saber Khammassi / Majdi Hammami / Saoussen Selmi / Emna Boushih / Marwa Ouertani / Nesrine Hachani / Manef Abderraba / Brahim Marzouk / Ferid Limam / Jouda Mediouni Ben Jemaa

    Asian Pacific Journal of Tropical Biomedicine, Vol 8, Iss 4, Pp 207-

    2018  Band 216

    Abstract: Objective: To elucidate for the first time the phenological stage effect on polyphenol, flavonoid and proanthocyanidin contents of pennyroyal (Mentha pulegium) as well as their antioxidant capacities and insecticidal potentials against Tribolium ... ...

    Abstract Objective: To elucidate for the first time the phenological stage effect on polyphenol, flavonoid and proanthocyanidin contents of pennyroyal (Mentha pulegium) as well as their antioxidant capacities and insecticidal potentials against Tribolium castaneum and Lasioderma serricorne. Methods: Crude methanol extracts from pennyroyal (Mentha pulegium) aerial parts were evaluated for their antiradical, reducing power activities and repellent potentials against selected coleopteran insects during different phenological stages. Results: Phenolic contents of pennyroyal aerial parts and their antioxidant effects were significantly dependent on maturity stage of the plant. The maximum of phenol production was reached during the full flowering stage. Apigenin was the major phenol in Mentha pulegium with an amount of 6.01 mg/g of dry vegetable matter during this period. Nevertheless, at fructification stage, the highest antioxidant activity was not related to high phenolic content. The repulsive effect of pennyroyal extract showed that Lasioderma serricorne was more susceptible to pennyroyal extract than Tribolium castaneum with corresponding median repellent dose values of 0.124 and 0.006 mg/mL respectively. Moreover, great differences in insect repulsion depending on extract concentrations, exposure time and developmental stage was observed. For the lowest concentration (0.125 mg/mL), the repellent effect against Tribolium reached its maximum (90%) during the fructification stage (after 24 h of exposure) while this repellent effect was 80% during the vegetative stage. Conclusions: Due to the strong insecticidal potential of pennyroyal extracts, this study highlights the therapeutic properties of this plant and encourages its use as a safer, environmental-friendly and efficient insecticide in food industry.
    Schlagwörter apigenin lasioderma ; repellent activity ; full flowering stage ; Arctic medicine. Tropical medicine ; RC955-962 ; Biology (General) ; QH301-705.5
    Thema/Rubrik (Code) 500
    Sprache Englisch
    Erscheinungsdatum 2018-01-01T00:00:00Z
    Verlag Wolters Kluwer Medknow Publications
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  5. Artikel: Fumigant and repellent potentials of Ricinus communis and Mentha pulegium essential oils against Tribolium castaneum and Lasioderma serricorne

    Salem, Nidhal / Brahim Marzouk / Emna Boushih / Férid Limam / Jazia Sriti / Jouda Mediouni Ben Jemaa / Kamel Msaada / Majdi Hammami / Manef Abderraba / Olfa Bachrouch / Saber Khammassi / Saoussen Selmi / Souha Koorani

    International journal of food properties. 2017 Dec. 31, v. 20, no. sup3

    2017  

    Abstract: This work was aimed to investigate the chemical composition of pennyroyal (Mentha pulegium L.) aerial parts and castor (Ricinus communis L.) stems essential oils from Tunisia. Fumigant and repellent toxicities were assessed toward two major stored ... ...

    Abstract This work was aimed to investigate the chemical composition of pennyroyal (Mentha pulegium L.) aerial parts and castor (Ricinus communis L.) stems essential oils from Tunisia. Fumigant and repellent toxicities were assessed toward two major stored product beetles: Lasioderma serricorne and Tribolium castaneum. Pennyroyal essential oil was characterized by a clear predominance of the oxygenated monoterpenes fraction (97.10%) instead of phenol fraction (61.47%) in the castor essential oil. The major common compounds of Mentha pulegium were pulegone and isomenthone, whereas 2,4-bis (dimethylbenzyl)-6-t-butylphenol was the main volatile compound of castor essential oil. Pennyroyal essential oil showed a strong antiradical capacity (IC50 = 14 μg/mL) which is higher than synthetic standard. The effectiveness of pennyroyal essential oil against the coleopteran insects showed potential fumigant impact particularly against Lasioderma serricorne with LC50 = 8.46 μL/L air. Moreover, significant pest repellent activity was demonstrated with Ricinus communis and Mentha pulegium where the repellency effects reached 80 and 60% after 1 and 24h of exposure against Tribolium castaneum at doses of 0.31 μL/cm2 and 0.078 μL/cm2 respectively. Hence, these findings underlined the potential insecticidal effect of castor and pennyroyal essential oils and highlighted their use as valuable food and insecticide products instead of synthetic pesticides.
    Schlagwörter aerial parts ; air ; chemical composition ; essential oils ; fumigants ; inhibitory concentration 50 ; insecticides ; insects ; Lasioderma serricorne ; lethal concentration 50 ; Mentha pulegium ; monoterpenoids ; pests ; phenol ; Ricinus communis ; Tribolium castaneum ; volatile compounds ; Tunisia
    Sprache Englisch
    Erscheinungsverlauf 2017-1231
    Umfang p. S2899-S2913.
    Erscheinungsort Taylor & Francis
    Dokumenttyp Artikel
    ZDB-ID 1402715-x
    ISSN 1532-2386 ; 1094-2912
    ISSN (online) 1532-2386
    ISSN 1094-2912
    DOI 10.1080/10942912.2017.1382508
    Datenquelle NAL Katalog (AGRICOLA)

    Zusatzmaterialien

    Kategorien

    Verfügbar in ZB MED Bonn

    Z 6878: Hefte anzeigen

    Über subito bestellen

    Dieser Service ist kostenpflichtig (siehe Lieferbedingungen von subito). Bestellungen, die einen Artikel nebst Supplementary Material umfassen, werden grundsätzlich wie mehrfache Bestellungen bearbeitet. Gebühren fallen in diesen Fällen für jede einzelne Bestellung an.

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

Zum Seitenanfang