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Study of biochemical composition of some algal species of Cystoseira (Phaeophyceae) at Ibn Hani coast - lattakia

دراسة التركيب البيوكيميائي لبعض أنواع طحالب جنس السيستوزيرا Cystoseira (الطحالب السمراء Phaeophyceae) على شاطئ ابن هاني – اللاذقية

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 Publication date 2015
  fields Biology
and research's language is العربية
 Created by Shamra Editor




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The biochemical composition of some species of Phaeophyceae (Cystoseira): Cystoseira compressa, Cystoseira barbata, Cystoseira elegans, Cystoseira amentacea, Cystoseira barbatula, Cystoseira caespitosa, have been studied. The algal specimens have been collected from Ibn Hani coast north of lattakia in spring 2014. The soluble sugar varies between (13- 56.78%) weight/dry weight [w/dw]. C.amentacea has the highest content of proteins (21.76%), and C.barbata has the lowest (9.51%). Lipid varied between (1.25- 5.55%) [w/dw]. The highest content of ash was in C.caespitosa (31.18%), and the lowest in C.amentacea (23.84%). Iodine was: C.compressa and C.caespitosa (0.68 %), C.barbata (0.69 %), C.barbatula (0.7%), C.amentacea (0.71%), C.elegans (0.8%). Mannitol was within the range (2.91-4%) [w/dw]. Results of biochemical composition of studied species showed the differences between the percentage of values, and this variety affects on the economical value for the species, also affects on the major herbivorous food, that affects on their environment and their community composition.


Artificial intelligence review:
Research summary
تمت دراسة التركيب البيوكيميائي لعدة أنواع من طحالب جنس السيستوزيرا (Cystoseira) التي تنتمي إلى الطحالب السمراء (Phaeophyceae) على شاطئ ابن هاني في اللاذقية خلال فصل الربيع لعام 2014. الأنواع المدروسة تشمل Cystoseira compressa، Cystoseira barbata، Cystoseira elegans، Cystoseira amentacea، Cystoseira barbatula، و Cystoseira caespitosa. أظهرت النتائج تباينًا في محتويات السكريات المنحلة، البروتينات، اللبيدات، الرماد، اليود، والمانيتول بين الأنواع المختلفة. سجل النوع C.amentacea أعلى نسبة من البروتينات (21.76%)، بينما سجل النوع C.barbata أدنى نسبة (9.51%). تراوحت نسبة اللبيدات بين (1.25-5.55%) من الوزن الجاف. سجلت أعلى نسبة للرماد عند النوع C.caespitosa (31.18%) وأدنى نسبة عند النوع C.amentacea (23.84%). كانت نسبة اليود تتراوح بين (0.68-0.8%)، بينما تراوحت نسبة المانيتول بين (2.91-4%). أشارت النتائج إلى أن هذه التباينات تؤثر على القيمة الاقتصادية للأنواع المدروسة وكذلك على تغذية الكائنات البحرية العاشبة وبيئتها.
Critical review
دراسة نقدية: تعتبر هذه الدراسة مهمة لفهم التركيب البيوكيميائي لأنواع طحالب السيستوزيرا وتأثيرها على البيئة البحرية. ومع ذلك، كان من الممكن أن تكون الدراسة أكثر شمولاً إذا تم تضمين المزيد من العينات من مواقع مختلفة وأوقات مختلفة من السنة. كما أن الدراسة لم تتناول بشكل كافٍ تأثير العوامل البيئية مثل درجة الحرارة والملوحة على التركيب البيوكيميائي للطحالب. بالإضافة إلى ذلك، كان من الممكن تحسين الدراسة من خلال استخدام تقنيات تحليلية أكثر تطورًا للحصول على نتائج أكثر دقة.
Questions related to the research
  1. ما هي الأنواع المدروسة في هذه الدراسة؟

    الأنواع المدروسة تشمل Cystoseira compressa، Cystoseira barbata، Cystoseira elegans، Cystoseira amentacea، Cystoseira barbatula، و Cystoseira caespitosa.

  2. ما هو النوع الذي سجل أعلى نسبة من البروتينات؟

    النوع C.amentacea سجل أعلى نسبة من البروتينات (21.76%).

  3. ما هي النسبة المئوية لللبيدات في الأنواع المدروسة؟

    تراوحت نسبة اللبيدات بين (1.25-5.55%) من الوزن الجاف.

  4. كيف تؤثر التباينات في التركيب البيوكيميائي على القيمة الاقتصادية للأنواع المدروسة؟

    التباينات في التركيب البيوكيميائي تؤثر على القيمة الاقتصادية للأنواع من خلال تأثيرها على تغذية الكائنات البحرية العاشبة وبيئتها، مما ينعكس على إمكانية استثمارها تجارياً.


References used
AGUILERA, M. M; CASAS, V; CARRILLO, D. S; GONZÁLEZ, A. B; PEREZ, G. F. Chemical composition and microbiological assays of marine algae Enteromorpha spp. as a potential food source. Journal of Food Composition and Analysis 18, 2005, 79–88
BENJAMA, O; MASNIYOM, P. Nutritional composition and physicochemical properties of two green seaweeds (Ulva pertusa and U. intestinalis) from the Pattani Bay in Southern Thailand". Songklanakarin J. Sci.Technol. 33(5), 2011, 575-583
CAMERON, M. C; ROSS, A. G; PERCIVAL, E. G. V. Methods of the routine estimation of mannitol, alginic acid and combined fucose in seaweeds.J. Soc. Chem. Ind, London, 67, 1948, 161-164
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