scholarly journals Characterization of Sweet Almond Oil Content of Four European Cultivars (Ferragnes, Ferraduel, Fournat, and Marcona) Recently Introduced in Morocco

Scientifica ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Reda Melhaoui ◽  
Souhayla Kodad ◽  
Nadia Houmy ◽  
Kamal Belhaj ◽  
Farid Mansouri ◽  
...  
Keyword(s):  
Oil Content ◽  
Mediterranean Area ◽  
Tocopherol Content ◽  
Total Phenol Content ◽  
Peroxide Values ◽  
Eastern Morocco ◽  
Minor Compounds ◽  
Agricultural Areas

This study concerns the characterization of oil content and quality indices for almond cultivars (Marcona (Mr), Fournat (Fn), Ferragnes (Fg), and Ferraduel (Fd)) recently introduced into marginal agricultural areas in eastern Morocco. These verities are known for their rusticity and late flowering stage. The analyzed almond oils showed low acidity and peroxide values ranging, respectively, from 0.32 to 0.36% and 1.88 to 3.18 meq O2/kg. Fatty acid (FA) profile revealed a predominance of the unsaturated FA represented essentially by the oleic (56.64–64.03%) and linoleic FA (24.57–29.80%). Triacylglycerol (TAG) analysis allowed the determination of eleven species with a remarkable dominance of trioleylglycerol (OOO: 30%) and dioleyllinoleoylglcerol (OOL: 27.25%). Regarding the minor compounds, the results showed that the total phenol content ranges between 85.33 and 141.66 mg/kg. Concerning the tocopherol content, the studied oils showed richness in these secondary metabolites (408.99–491.77 mg/kg) with a dominance of α-tocopherol. In comparison to their homologues in the Mediterranean area, the evaluated almond oils demonstrated a slight superiority in terms of quality, in particular, to those produced in Spain.

scholarly journals Promotion of almond oil from the Ferragnes variety, a predominant cultivar in young almond plantations in eastern Morocco

2021 ◽  
Vol 240 ◽  
pp. 04004
Author(s):  
Reda Melhaoui ◽  
Nadia Houmy ◽  
Souhayla Kodad ◽  
Kamal Belhaj ◽  
Farid Mansouri ◽  
...  
Keyword(s):  
Oxidative Stability ◽  
Natural Antioxidants ◽  
Chemical Parameters ◽  
Almond Oil ◽  
Fa Composition ◽  
Food Applications ◽  
Eastern Morocco ◽  
Minor Compounds

Almond oil (AO) has both food and non-food uses, but the most profitable niche market is its non-food applications for cosmetic (Skincare, Body oil, Hair oil, Soap). In the last decade, two almond varieties Ferragnes and Ferraduel, with the dominance of Ferragnes, became to be crucial due to their suitability to the agro-ecological conditions of some regions of almond production in Morocco. This study focuses on characterization of AO of Ferragnes, which is the main cultivar among foreign almond varieties introduced in eastern Morocco. Chemical parameters’ fatty acid (FA) composition, minor compounds mainly tocopherols and phenols were analyzed, and the oxidative stability (OSI) of AO related to their shelf life was determined. Results show low acidity (0.38%) and low peroxide value (1.92 meq/kg). FA profile shows predominance of unsaturated FA principally oleic acid (C18:1; 68.9 %) and linoleic acid (C18:2; 21.88%). Tocopherol (Vitamin E) and phenol contents are, respectively, 456.43 mg/kg and 138 mg/kg. In addition, due to its richness in natural antioxidants, this oil exhibits high oxidative stability (OSI = 24.09 h); thus, these results prove the high quality of Ferragnes AO that can be recommended as edible oil, but notably for cosmetic applications which are more profitable.

Characterization of Impressed Current Technique to Model Corrosion of Reinforcement in Concrete

2020 ◽  
Vol 11 (1) ◽  
pp. 93-99
Author(s):  
Abu Zakir Morshed ◽  
Sheikh Shakib ◽  
Tanzim Jahin
Keyword(s):  
Immersion Time ◽  
Chloride Content ◽  
Engineering Science ◽  
Coastal Regions ◽  
Faraday’S Law ◽  
Current Technique ◽  
Corrosion Cell ◽  
Impressed Current

Corrosion of reinforcement is an important durability concern for the structures exposed to coastal regions. Since corrosion of reinforcement involves long periods of time, impressed current technique is usually used to accelerate the corrosion of reinforcement in laboratories. Characterization of impressed current technique was the main focus of this research,which involved determination of optimum chloride content and minimum immersion time of specimens for which the application of Faraday’s law could be efficient. To obtain optimum chloride content, the electrolytes in the corrosion cell were prepared similar to that of concrete pore solutions. Concrete prisms of 200 mm by 200 mm by 300 mm were used to determine the minimum immersion time for saturation. It was found that the optimum chloride content was 35 gm/L and the minimum immersion time for saturation was 140 hours. Accounting the results, a modified expression based on Faraday’s law was proposed to calculate weight loss due to corrosion. Journal of Engineering Science 11(1), 2020, 93-99

The Determination of Sense via Deleuze and Blanchot: Paradoxes of the Habitual, the Immemorial, and the Eternal Return

2008 ◽  
Vol 2 (2) ◽  
pp. 155-177 ◽  
Author(s):  
Eugene Brently Young
Keyword(s):  
Eternal Return

Eternal return is the paradox that accounts for the interplay between difference and repetition, a dynamic at the heart of Deleuze's philosophy, and Blanchot's approach to this paradox, even and especially through what it elides, further illuminates it. Deleuze draws on Blanchot's characterisations of difference, forgetting, and the unlivable to depict the ‘sense’ produced via eternal return, which, for Blanchot, is where repetition implicates or ‘carries’ pure difference. However, for Deleuze, difference and the unlivable are also developed by the living repetition or ‘contraction’ of habit, which results in his distinctive characterization of ‘force’, ‘levity’, and sense in eternal return.

SEM/EDS Characterization of Uncommon Metal Whiskers and Determination of Underlying Growth Mechanisms

2018 ◽  
Author(s):  
D. Basak ◽  
L. H. Ponce
Keyword(s):  
Reliability Analysis ◽  
Case Studies ◽  
Whisker Growth ◽  
Innovation Systems ◽  
Growth Mechanisms ◽  
Crystal Oscillator ◽  
Analysis Laboratory ◽  
Investigative Techniques

Abstract Two case-studies on uncommon metals whiskers, performed at the Reliability Analysis Laboratory (RAL) of Northrop Grumman Innovation Systems, are presented. The components analyzed are an Oven Controlled Crystal Oscillator (OCXO) and an Electromechanical Relay. Investigative techniques were used to determine the chemical and physical makeup of the metal whiskers and develop an understanding of the underlying effects and mechanisms that caused the conditions conducive to whisker growth.

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