Contribution à l’étude de quelques paramètres biochimiques et éco toxicologiques d’une Algue brune: Cystoseira stricta

الموضوعات

علوم بيئية

الملخص

Algae are a potentially rich source of metabolites including proteins, lipids, anti-oxidants such as poly-phenols.The present work is moving to wards an evaluation way that is very exploited in Algeria. Its main objective is the study of the characterization of some bio-chemical elements as well as the metallic contamination by three trace metals namely Zinc, Copper and Lead, at the level of the brown alga Cystoseira stricta sp of the west coast Algerian.The result sindicate a high yield of crude extract (8.8%). In addition, the brown alga Cystoseira stricta sp is characterized by a high level of total poly-phenols ( 5.43 mg EAG / g DM).The study of the antioxidant power by two methods, the trapping of the radical DPPH, and the quantification of the total antioxidant capacity, reveals the presence of antioxidant properties for the studied extract.The evaluation of the sample shows that the brown alga studied is low in lipids whose content is evaluated at (4%).On the basis of the chemical analysis, the algae have the advantage of being rich in proteins and rawash whose contents are of the order of (21%) and (19.4%) respectively.Regarding the metal contamination, our alga has higher levels of zinc followed by copper and lead, however these rates remain relatively questionable given the short period of our sampling.All these results obtained in vitro are only a first step in the search for biologically active natural substances from marine algae. So for futur long-term studies should be considered to confirm the bioactivity of marine algae and their bioaccumulation potential

روابط وملفات

التعريف والنوع

رقم الوثيقة

fe69f995-0b69-49ab-b012-0a4b465972f9

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

ماستر (LMD)

نوع الملف

pdf text

أسماء الملفات

212610_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Ibtissam Bakreti","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Sofia Borsali","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"Yamina Berrabah","title_ar":"اعداد","title_en":"Preparation"}]

اللغة

French

المصدر والدورية

اسم المصدر

Contribution à l’étude de quelques paramètres biochimiques et éco toxicologiques d’une Algue brune: Cystoseira stricta

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

Sofia Borsali

الإعداد

Ibtissam Bakreti, Yamina Berrabah

الاقتباسات الببليوغرافية