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Register a new userDetermination of Copper and Zinc levels in some spices in local market
تحديد تراكيز النحاس و التوتياء في بعض أنواع البهارات في السوق المحلية
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Tishreen University ورقة بحثية
Publication date
2013
fields
Food Sciences
and research's language is
العربية
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Shamra Editor
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قدرت كمية عنصرين من العناصر الثقيلة (النحاس و التوتياء) في بعض أنواع البهارات شائعة الاستعمال و المنتشرة في بعض الأسواق المحلية السورية باستخدم جهاز الامتصاص الذري. بينت الدراسة وجود فروق في تراكيز هذين العنصرين تبعاً لأنواع البهارات المختلفة المدروسة. تراوح تركيز النحاس في البهارات من تراكيز صغيرة (0.059) إلى تراكيز عالية وصلت إلى 0.668 mg/kg. بينما وصل الحد الأعظمي لتركيز التوتياء في عيّنات البهارات المدروسة إلى 2.523mg/kg. كانت تراكيز النحاس في معظم العيّنات أقل من الحد الأعظمي المسموح به كما أظهرت النتائج وجود التوتياء بنسب أقل بكثير من النسب المسموح بها في المواصفات العالمية و المحلية.
The concentrations of Copper (Cu) and Zinc (Zn) in samples of some spices available at some local markets in Syria were determined, after nitric digestion, using Atomic Absorption Spectrometry. The study showed differences in metal concentrations according to the edible part. Studied heavy metals were present in all samples at different levels. The concentration of Copper (Cu) and Zinc varied from trace to higher concentration. The maximum level of Copper (Cu) in the spices samples was 0.668 mg/kg. The maximum level of Zinc (Zn) in the spices samples was 2.523mg/kg. The analytical results obtained for the heavy metals indicate that the Copper and Zinc were present in all samples at concentration well below the acceptable daily intake recommended by the World Health Organization.
Artificial intelligence review:
Research summary
تتناول هذه الدراسة تقدير تراكيز عنصري النحاس والتوتياء في بعض أنواع البهارات المنتشرة في الأسواق المحلية السورية باستخدام جهاز الامتصاص الذري. أظهرت النتائج وجود فروق في تراكيز هذين العنصرين تبعاً لأنواع البهارات المختلفة، حيث تراوح تركيز النحاس من 0.059 إلى 0.668 ملغ/كغ، بينما وصل الحد الأقصى لتركيز التوتياء إلى 2.523 ملغ/كغ. كانت تراكيز النحاس في معظم العينات أقل من الحد الأقصى المسموح به، كما أظهرت النتائج وجود التوتياء بنسب أقل بكثير من النسب المسموح بها في المواصفات العالمية والمحلية. تهدف الدراسة إلى تقييم مدى مطابقة هذه التراكيز للمعايير العالمية وتقديم مقترحات لتحسين عمليات مراقبة جودة البهارات والأعشاب الطبية.
Critical review
تعتبر هذه الدراسة خطوة مهمة في مجال تقييم سلامة الأغذية والبهارات في السوق المحلية السورية. ومع ذلك، هناك بعض النقاط التي يمكن تحسينها. أولاً، كان من الأفضل تضمين مجموعة أوسع من العناصر الثقيلة الأخرى التي قد تكون موجودة في البهارات والأعشاب الطبية. ثانياً، لم يتم توضيح بشكل كافٍ كيفية اختيار العينات وما إذا كانت تمثل جميع أنواع البهارات المتاحة في السوق. ثالثاً، كان من الممكن تقديم توصيات أكثر تفصيلاً حول كيفية تحسين عمليات الزراعة والتجفيف والتعبئة لتقليل التلوث بالعناصر الثقيلة. وأخيراً، كان من الممكن أن تكون الدراسة أكثر شمولاً إذا تم تضمين تحليل للعوامل البيئية التي قد تؤثر على تراكيز هذه العناصر في البهارات.
Questions related to the research
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ما هي العناصر الثقيلة التي تم تحليلها في هذه الدراسة؟
تم تحليل عنصري النحاس والتوتياء في هذه الدراسة.
-
ما هو الحد الأقصى لتركيز النحاس الذي تم العثور عليه في عينات البهارات؟
الحد الأقصى لتركيز النحاس الذي تم العثور عليه هو 0.668 ملغ/كغ.
-
هل كانت تراكيز التوتياء في العينات المدروسة ضمن الحدود المسموح بها؟
نعم، كانت تراكيز التوتياء في العينات المدروسة أقل بكثير من النسب المسموح بها في المواصفات العالمية والمحلية.
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ما هي التوصيات التي قدمتها الدراسة لتحسين جودة البهارات والأعشاب الطبية؟
أوصت الدراسة بمتابعة الكشف عن تراكيز العناصر الثقيلة الأخرى في الأغذية عموماً والأعشاب الطبية والبهارات خصوصاً، وذلك للحفاظ على صحة المستهلك والرقي بمنتجاتنا الغذائية.
References used
ABOU, A.A.; and %5BAuthor%5D"ABOU, D.M. Heavy metals in Egyptian spices and medicinal plants and the effect of processing on their levels. Journal of Agriclture and Food Chemistry, Vol. 48, N° 6, 2000, 2300 – 2304
AGORAMOORTHY, G.; FU-AN, C.; and MINNA, J.H. Threat of heavy metal pollution in halophytic and mangrove plants of Tamil Nadu, India. Environmental Pollution Vol. 155, 2008, 320 – 326
AKERELE, O. Nature’s medicinal bounty: don’t throw it away. World Health Forum, 1993, pp. 390 – 395
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The concentrations of copper (Cu) and zinc (Zn) in samples of some cereals available at
local markets in Syria weredetermined, after nitric digestion, using Atomic Absorption
Spectrometry. The study showed that the heavy metals were present in all
samples at different
levels. The concentration of heavy metals varied from trace to higher concentration.
The maximum level of copper (Cu) in the cereal samples was 0.426 mg kg-1 on dry
weight basis, where the maximum level of zinc (Zn) in the cereal samples was 2.325mg mg kg-
1 on dry weight basis. The analytical results obtained for the heavy metals indicate that the
copper and zinc were present in all samples at concentration well below the acceptable
concentration recommended by the World Health Organization.
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coast, they were collected at the beginning of harvest season and at the end of it, fruits
grown in sun light and those grown in shade were collected tow, so that healthy fruit and
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We have concluded that that Syrian Grapefruit have sufficient naringin cotent for
economical investment, and that water alkaline method is a suitable economic method to
extract naringin from grapefruit white peels.
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