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The aim of this work is to characterize the seed oil of Aleurites moluccana and to develop a new formulation based on this oil (noted as "ALM"), which was used as a green corrosion inhibitor for iron in acidic solution. The fatty acid composition was determined using the chromatography gas GC/MS analysis. The Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization measurements were carried out for different concentrations of the ALM formulation, immersion times and rotation speeds. The surface analyses was performed by scanning electron microscopy (SEM) coupled with the energy dispersive X-Ray analysis (EDX). The results showed that the seeds oil of Aleurites moluccana was principally composed of unsaturated fatty acids (Oleic, Linoleic and Linoleinic acids) reached a value of 88%. The inhibition efficiency increases with increasing of concentration to attain a value of 97% at 250 ppm of the ALM formulation and acts as a mixed type inhibitor. This efficiency is reinforced by increasing immersion time and the rotation speeds values of the working electrode. [ABSTRACT FROM AUTHOR]

Background: Based on our previous ethnobotanical survey, the non-investigated Saharan plant Anabasis aretioides Coss. & Moq., growing in the region of Errachidia, was selected for pharmacological investigation. In Moroccan traditional medicine, A. aretioides is being used for diabetes treatment. Thus, the current work aims at evaluating the antidiabetic, antioxidant, and antibacterial activities of the plant in relation to the digestive tract. Methods: The different parts of the plant (aerial parts, roots, seeds) were extracted with methanol (MeOH) and screened in enzymatic assays for their inhibitory potential against α-amylase and α-glucosidase, as well as antioxidant and antibacterial activities. Furthermore, the phenolic compounds were analyzed using HPLC-DAD-QTOF-MS. Results: The MeOH extracts of A. aretioides aerial parts, roots, and seeds, respectively, inhibited α-amylase (IC50 of 3148.07 μg/mL, 2440.20 μg/mL, 3395.71 μg/mL) and α-glucosidase (IC50 of 2940.59 μg/mL, 3521.81 μg/mL, 3393.83 μg/mL). Moreover, compared to aerial parts and seeds, the plant roots exhibited higher antioxidant capacity and a potent reducing power. In resazurin microplate assay, the plant parts displayed a minimal inhibitory concentration (MIC) ranging from 7.81 mg/mL to 31.25 mg/mL. Chemical analysis revealed 25 phenolic compounds, with chlorogenic acid as the main phenolic compound in the aerial parts, hesperidin in roots, and quercitrin in seeds. Conclusion: Anabasis aretioides cited for treatment of diabetes shows promising antioxidant and antibacterial properties, as well as an ability to inhibit digestive enzyme, including α-amylase and α-glucosidase. Thus, our results explain in part the traditional use of this Saharan medicine and open doors for further in vivo mechanistic and functional studies. [ABSTRACT FROM AUTHOR]