Bioactive compounds and antioxidant activities of brown algae collected from the shores of the Egyptian seas | ||||
| مجلة کلية التربية النوعية - جامعة بورسعيد | ||||
| Article 18, Volume 14, Issue 14, June 2021, Page 645-664 PDF (785.64 K) | ||||
| Document Type: المقالة الأصلية | ||||
| DOI: 10.21608/pssrj.2021.98720.1147 | ||||
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| Authors | ||||
يوسف عبد العزيز الحسانين 1; سارة أحمد محمد سيد احمد 2; ساره أحمد محمود فايز فايز  3
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| 1کلية الاقتصاد المنزلى - جامعة المنوفية | ||||
| 2مدرس بقسم الاقتصاد المنزلي کلية التربيه النوعيه -جامعة بور سعيد.مصر | ||||
| 3کلية تربيه نوعيه قسم اقتصاد منزلي (تغذية وعلوم اطعمة) | ||||
| Abstract | ||||
| Brown algae (BA) belong to the group Heterokontophyta, a large group of eukaryotic organisms distinguished most prominently by having chloroplasts surrounded by four membranes. In Egypt, brown algae are naturally spread over large areas of marine beaches. The present study aims to determine the bioactive compounds and biological activities in BA collected from the shores of the Egyptian seas. Data indicated that carbohydrates were the largest compound (60.59%) followed by ash (19.45%), crude fiber (7.14%), total protein (4.02%) and crude fat (0.82%.). Also, polysaccharides were the largest compound followed by phenolics, tannins, carotenoids and flavonoids. β-carotene assay (BCA) indicated that ethanol extract (EtE) recorded the highest antioxidant activity followed by methanol extract (MeE) and water extract (AqE). The values of EtE extract are coming well i.e. closing to the line of 50 mg α-tocopherol followed by MeE and AqE, respectively. Also, MeE possessed the highest free radical scavenging activity (FRSA). For Half-maximal inhibitory concentration )IC50(, the AqE, EtE and MeE recorded 19.92, 10.41 and 12.52 μg/mL, respectively. The IC50 of BHT (standard) was 7.78 μg/mL. The BCA and FRSA of different tested extracts and standard was in the following order: standards (BHT/ α-tocopherol) > EtE > MeE > AqE. In conclusion, Brown algae extracts (BAE) contains several classes of phytochemicals with other compounds that are responsible for different biological activities including antioxidant and radical scavenging activities. Therefore, we recommended like of that algae extracts (BAE) to be included in daily diets, drinks, food supplementation and pharmacological formulae. | ||||
| Keywords | ||||
| Brown algae extracts (BAE); chemical composition; β-carotene assay (BCA); free radical scavenging activity (FRSA) | ||||
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