Chemical Variability ofCleistopholis patens(Benth.)Engl.etDielsLeaf Oil from Ivory Coast

2013 ◽  
Vol 10 (11) ◽  
pp. 2053-2060 ◽  
Author(s):  
Zana Adama Ouattara ◽  
Jean Brice Boti ◽  
Koffi Barthelemy Attioua ◽  
Antoine Coffy Ahibo ◽  
Joseph Casanova ◽  
...  
Keyword(s):  
Ivory Coast ◽  
Chemical Variability

Dancers of the Ivory Coast

1962 ◽  
Vol 3 (1) ◽  
pp. 18-19
Author(s):  
Isabel Ferguson
Keyword(s):  
Ivory Coast

Chemical variability and antioxidant activities of the essential oils of the aerial parts of Ammoides verticillata and the roots of Carthamus caeruleus and their synergistic effect in combination

2020 ◽  
Vol 23 ◽  
Author(s):  
Imane Rihab Mami ◽  
Noria Merad-Boussalah ◽  
Mohammed El Amine Dib ◽  
Boufeldja Tabti ◽  
Jean Costa ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antioxidant Activities ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Natural Food ◽  
Chemical Compositions ◽  
Chemical Variability ◽  
Ammoides Verticillata

Aim and Objective: Oxidative stress is implicated in the development and progression of many disease. Some of appropriate actions that could be initiated to taken to resolve the problem of these diseases are search for new antioxidant substances isolated from plants. The aims of this study were to study the intraspecies variations of A. verticillata and C. caeruleus essential oils from 8 locations using statistical analysis, the in vitro antioxidant properties of collective essential oils and in combinations. Materials and Methods: The essential oils were analyzed by GC and GC-MS. The intraspecies variations of the essential oil compositions were discussed using principal component analysis (PCA) and cluster analysis (CA). The antioxidant properties were evaluated DPPH-radical scavenging activity and β-carotene bleaching test. Results: The main components of Ammoides verticillata collective essential oil (Coll EO) were thymol (30.5%), carvacrol (23.2%), p-cymene (13.1%), limonene (12.5%) and terpinene-4-ol (12.3%). While roots of Carthamus caeruleus essential oil were dominated by carline oxide (86.2%). The chemical variability allowed the discrimination of two main Groups for both Coll EOs. A direct correlation between the altitudes, climate and the chemical compositions was evidenced. Ammoides verticulata and Carthamus caeruleus Coll Eos showed good antioxidant activity. In binary mixture, the interaction both Coll Eos and between oils rich of thymol and/or carvacrol with carlina oxide produced the best synergistic effects, compared to individual essential oils and the synthetic antioxidant (BHT). Conclusion: Ammoides verticillata and Carthamus caeruleus essential oil blends can be used as a natural food preservative and alternative to chemical antioxidants.

Comparative Area Studies

2018 ◽  
Author(s):  
Dirk Berg-Schlosser
Keyword(s):  
Cold War ◽  
Ivory Coast ◽  
Qualitative Comparative Analysis ◽  
The Other ◽  
Area Studies ◽  
International Context ◽  
Recent Developments ◽  
Cross Area Studies ◽  
The Cold War ◽  
Analytical Approaches

Area studies have undergone significant changes over the last two decades. They have been transformed from mostly descriptive accounts in the international context of the Cold War to theory-oriented and methodological analytical approaches. More recent comparative methods such as “Qualitative Comparative Analysis” (QCA) and related approaches, which are particularly suitable for medium N studies, have significantly contributed to this development. This essay discusses the epistemological background of this approach as well as recent developments. It provides two examples of current “cross area studies,” one concerned with successful democratic transformations across four regions (Africa, Eastern Europe, Latin America, and East Asia), the other with political participation in marginalized settlements in four countries (Brazil, Chile, Ivory Coast, Kenya) in a multilevel analysis. The conclusion points to the theoretical promises of this approach and its practical-political relevance.

Case Evidence: Conflict Trajectories in Indonesia, Ivory Coast, and Syria

2018 ◽  
Author(s):  
Jaroslav Tir ◽  
Johannes Karreth
Keyword(s):  
Civil War ◽  
Ivory Coast ◽  
Armed Conflicts ◽  
East Timor ◽  
Intergovernmental Organizations ◽  
Crisis Resolution ◽  
Low Level ◽  
Qualitative Evidence ◽  
The Government

Two low-level armed conflicts, Indonesia’s East Timor and Ivory Coast’s post-2010 election crises, provide detailed qualitative evidence of highly structured intergovernmental organizations (IGOs) engaging in effective civil warpreventing activities in member-states. Highly structured IGOs threatened and sanctioned each of these states and offered (long-term) benefits conditional on successful crisis resolution. The governments were aware of and responded to these IGOs’ concerns, as did the rebels in these respective cases. The early stages of the conflict in Syria in 2011 provide a counterpoint. With Syria’s limited engagement in only few highly structured IGOs, the Syrian government ignored international calls for peace. And, without highly structured IGOs’ counterweight to curtail the government, the rebels saw little reason to stop their armed resistance. The result was a brutal and deadly civil war that continues today.

Production of Aflatoxin in Cocoa Beans

1979 ◽  
Vol 62 (5) ◽  
pp. 1076-1079 ◽  
Author(s):  
Lawrence M Lenovich ◽  
W Jeffrey Hurst
Keyword(s):  
High Pressure ◽  
Liquid Chromatography ◽  
Ivory Coast ◽  
Aspergillus Parasiticus ◽  
Aflatoxin Production ◽  
Growth Conditions ◽  
Aflatoxin Contamination ◽  
Cocoa Beans ◽  
Total Aflatoxin ◽  
Substrate Variation

Abstract Aflatoxin was produced in both non-autoclaved and autoclaved Ivory Coast cocoa beans inoculated with Aspergillus parasiticus NRRL 2999 under optimum laboratory growth conditions. Total aflatoxin levels ranged from 213 to 5597 ng/g substrate. Aflatoxin was quantitated by using high pressure liquid chromatography (HPLC). Raw, non-autoclaved cocoa beans, also inoculated with aspergilli, produced 6359 ng aflatoxin/g substrate. Variation in aflatoxin production between bean varieties was observed. Total aflatoxin levels of 10,446 and 23,076 ng/g substrate were obtained on Ivory Coast beans inoculated with A. parasiticus NRRL 2999 and NRRL 3240, respectively. Aflatoxin production on Trinidad and Malaysian beans was 28 and 65 ng aflatoxin/g substrate. These data support previously reported low level natural aflatoxin contamination in cocoa.

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