Siham Ydjedd

Siham Ydjedd
Université de Béjaïa · Siences Alimentaires

PhD

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8
Publications
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94
Citations

Publications

Publications (8)
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Naturally occurring vitamin E, comprised of four forms each of tocopherols and tocotrienols, are synthesized solely by photosynthetic organisms and function primarily as antioxidants. The structural motifs of the vitamin E family and specifically the chroman moiety, are amenable to various modifications in order to improve their bioactivities towar...
Article
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Background: Mandarin by-products, such as peels and seeds, are considered as one of the naturel sources of phenolic compounds. Aim: The objective of the present study was to compare the phenolic compounds contents and antioxidant activity of different parts (pulps, seeds, juices, and peels) of three mandarins varieties extracts. Material and method...
Article
Full-text available
Background: Mandarin by-products, such as peels and seeds, are considered as one of the naturel source of phenolic compounds. Aim: The objective of the present study was to compare the phenolic compounds contents and antioxidant activity of different parts (pulps, seeds, juices, and peels) of three mandarins varieties extracts. Material and methods...
Article
Full-text available
This study was carried out to determine the phenolic contents and the antioxidant activity of four nuts with different solvent extract. Total phenolic compounds, flavonoids, and proanthocyanidin were quantified. Antioxidant activity was evaluated by various in vitro tests, including ferric reducing power, phosphomolybdenum method assay, and free ra...
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The aim of this study was to evaluate the effect of in vitro gastrointestinal digestion on the phenolic amounts and their antioxidant potential of three prickly pear variety extracts. The total phenolic compounds (phenolic, flavonoid, and proanthocyanidin) contents were assessed as well as their antioxidant activities (total antioxidant capacity, f...
Article
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To determine the effect of in vitro gastrointestinal digestion on the release and antioxidant capacity of encapsulated and nonencapsulated phenolics carob pulp extracts, unripe and ripe carob pulp extracts were microencapsulated with polycaprolactone via double emulsion/solvent evaporation technique. Microcapsules' characterization was performed us...
Article
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The consecutive extraction via different solvents of increasing/decreasing polarity, which allowed a pre-fractionation of the extracted compounds, is widely used as major method for extraction of polyphenols. Thus, the phenolic compounds of Ceratonia siliqua L., at unripe and ripe stages, were extracted by four solvents of increasing polarity (hexa...
Article
Six peel samples of Clementine fruits and one sample of Mandarin cultivar peel were studied. Mineral analysis showed that all the fruit peels were good sources of K, Ca, Na and Fe. Phenolic and flavonoid contents presented values between 9686±144 and 11934±312 mg gallic acid equivalents /100 g dw and between 702±68 and 1047±54 mg Catechin equivalen...

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Project (1)
Project
Encapsulation of drug in biodegradable polymer