Publications by authors named "M Tabyaoui"

Article Synopsis
  • This study investigates how UV irradiation affects the oxidation stability of oil and its phytochemical profile due to photo-oxidation.
  • Using GC-MS analysis, the research identified key fatty acid compounds, highlighting the predominant presence of alpha-linolenic acid (ALA), which is a type of omega-3 fatty acid, along with significant levels of phytosterols and tocopherols.
  • The results show that during 8 hours of UV exposure, there are notable increases in acidity and oxidation markers, but high levels of carotenoids and phenolic compounds help maintain the oil's quality, leading to little difference between irradiated and non-irradiated oil.
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Peanuts are highly valued for their abundance of essential nutrients and health-promoting phenolic compounds. Peanut press cake, an inexpensive and underutilized agro-industrial by-product of oil production, is typically discarded or used as animal feed. This study investigated the influence of thermal processing and varietal disparities on the nutritional composition, phenolic content, and biological properties of peanut flour and oilcake flour, aiming to enhance their value as food ingredients.

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This study investigates for the first time the effects of UV light exposure on the chemical composition of artisanal and cold-pressed culinary and cosmetic argan oils, as well as their quality and biological activities. We ascertained the oxidative stability of both types of oil through measurements of the peroxide value, acidity, UV-spectrophotometric indexes (E232 and E270), and iodine value. Over the course of eight hours at room temperature, the impact of UV light on the breakdown of tocopherols, polyphenols, chlorophylls, and carotenoid pigments was examined.

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Identification of the chemical compositions of fatty acids and tocopherols shows the high content of oil (LO) by linolenic acid 55.3735% and -tocopherol 570.927 mg/kg, while oil (AO) is known by the dominance of oleic acid 47.

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The aims of this study are the phytochemical exploration and food valorization of L. () and Raddi () from the Rabat, Morocco. Gas chromatography (GC) and high-performance liquid chromatography (HPLC) were used to analyze the chemical composition of the oils extracted from both species by soxhlet and maceration.

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