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    A comprehensive study on chemical and biological profiles of Algerian Azadirachta indica (A. Juss)
    (Elsevier Ltd, 2024) Boukeloua, Ahmed; Leila, Soudani; Bendif, Hamdi; Elkadeem, Ahmed Mustafa; Boğa, Mehmet; Serralheiro, Maria Luísa; Yılmaz, Mustafa Abdullah; Yener, İsmail
    The study aimed to analyse the chemical and biological composition of Azadirachta indica (A. Juss) (A. indica) leaves. Minerals were quantified using inductively coupled plasma-mass spectrometry (ICP-MS). Phenolic compounds and water-soluble vitamins were identified via LC-MS/MS. Antioxidant activity was assessed using ABTS cation radicals and cupric reducing antioxidant capacity (CUPRAC), while anticholinesterase effect was tested against butyrylcholinesterase (BChE) and Acetylcholinesterase (AChE). Results revealed significant levels of major elements (e.g., Zn, Cu) making it a promising source. Predominant phenolic acids included tannic and salicylic acid, with major flavonoids being hyperoside, kaempferol, and quercetin. Main water-soluble vitamins were nicotinic acid, nicotinamide, and pantothenic acid, followed by pyridoxine, thiamine, and riboflavin. Ethanol extract exhibited moderate antioxidant activity (30.02 % inhibition of ABTS radicals; IC50 0.918 ?g/mL for CUPRAC and low inhibition of BChE and AChE (2.29 % and 3.17 % respectively). These findings highlight A. indica as a valuable natural source of nutritionally significant compounds and antioxidants. © 2024 Phytochemical Society of Europe
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    Lc-ms/ms simultaneous determination of 37 bioactive compounds in bunium crassifolium batt. And its biological activities
    (Marmara University, 2021) Souilah, Nabila; Bendif, Hamdi; Ullah, Zain; Hamel, Tarek; Djarri, Lakhdar; Öztürk, Mehmet; Ertaş, Abdulselam
    Bunium crassifolium Batt. is an extremely rare species growing in Algeria. Its leaf or aerial part is used for flavoring and garnishing food. The aim of the current study was to determine 37 bioactive phytochemicals and biological evaluation of the methanol and methanol:water (70:30) extracts of B. crassifolium for the first time. A total of 10 phenolic acids and 8 flavonoids have been identified in the extracts of the aerial parts by LC–MS/MS. Chlorogenic, gallic and ferulic acids were the most abundant phenolic acids detected, while rhoifolin, quercitrin and rutin were the most abundant flavonoids. In addition, 3 non-phenolic organic acids (fumaric acids, quinic and malic) were detected and among them quinic and malic acids were the most abundant. Antioxidant activity was evaluted by six methods and the extracts showed significant activity. The total phenolic and flavonoid contents were determined and methanol:water (70:30) extract showed higher values which entails its greater antioxidant capacity. In addition, anticholinesterase (AChE and BChE) activity was evaluated for both extracts using Ellman method. Methanol extract showed a better anti-acetylcholinesterase activity than methanol:water (70:30) one. While, both extracts showed a weak anti-butyrylcholinesterase activity. Furthermore, the anti-tyrosinase activity was tested and the methanol:water (70:30) extract was promising and more potent. In conclusion, B. crassifolium could be used in food industries and pharmaceutical as a potential functional food ingredient.