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Register a new userEffect of different factors on chemical composition and amino acids in Syrian fattened camel meat
تأثير عوامل مختلفة في التركيب الكيميائي العام و الأحماض الأمينية للحم الإبل السورية المسمنة
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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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هدف البحث إلى دراسة تـأثير الجنس و العمر و الموقع التشريحي على التركيب الكيميائي العام للحوم الإبل السورية وحيدة السنام ذات التغذية المسمنة و محتوياتها من الأحماض الأمينية. خضعت للتحليل عينات من العضلة الظهرية المستطيلة (المتلة : Longissimus dorsi) و عضلة الشهباية (Semimembranous) من ذكور و إناث الإبل و من ثلاث فئات عمرية: الفئة الأولى 1.5-2 سنة و الفئة الثانية 3-4 سنة و الفئة الثالثة 5-6 سنوات، بواقع ثلاث عينات من كل فئة عمرية و من كل جنس. تميز لحم الذكور بنسب رطوبة و بروتين أعلى و بنسب دهن و رماد أقل مما في لحم الإناث، و انخفضت نسبة الرطوبة و البروتين و ارتفعت نسبة الدهن و الرماد بتقدم عمر الحيوان، و كانت نسب الرطوبة و البروتين و الرماد أعلى في عضلة الشهباية، بينما كانت نسبة الدهن أقل. وجد أن كميات الأحماض الأمينية أعلى في لحم الذكور مما هي عليه في لحم الإناث باستثناء كمية حمض المثيونين كانت على العكس، و انخفضت كميات الفالين و الإيزوليوسين و المثيونين و الألانين و الغلوتامين و التيروسين و زادت كميات الليوسين و الثريونين و التربتوفان و الفينايل ألانين و الأسبارتيك بزيادة عمر الحيوان. و كانت كميات الفالين و الليوسين و المثيونين و الألانين و الأرجنين و الهستدين و الغلوتامين و البرولين أعلى في حين كانت كميات الإيزوليوسين و الثريونين و التربتوفان و الفينايل ألانين و الأسبارتيك و الغلوتامين و التيروسين أقل في الشهباية منها في المتلة.
The aim of this research is to study the effect of sex, age and anatomical location on the chemical composition and amino acids of Syrian fattened camel meat. Samples from dorsal rectangular muscle (Longissimus dorsi), and Semimembranous muscle in three age groups (1.5 - 2 years, 3 - 4 years and 5 - 6 years) were analyzed in triplicates from every age group and from each sex. Percentage of moisture and protein in the flesh of males was higher than the flesh of females. Moisture and protein decreased, while fat and ash increased according of animal's age. Moisture, protein and ash were higher in Semimembranous muscle, while fat was low. The amounts of amino acids were higher in the flesh of males than the flesh of females, but the amount of methionine was opposite. The amounts of valine, iso-leucine, methionine, alanine, glutamine, and tyrosine decreased, while The amount of leucine, threonine, tryptophan, phenylalanine and aspartic increased by animal age. The amounts of valine, leucine, methionine, alanine, arginine, histidine, glutamine and proline increased while the quantities of iso-leucine, threonine, tryptophan, phenyl-alanine, aspartic, tyrosine and glutamine decreased in semimembranous muscle compared with dorsal rectangular muscle.
References used
Alehina, L. T., Bolchakov, A. c., Boreckov, B. G., Jarinov, A. I. Technology Meat and Meat-products. Moscow, agriprocessing. (1988).34-36
Al-Sheddy, I.; Al-Dagal, M. ,and Bazaraa W. A. Microbial and Sensory Quality of Fresh Camel Meat Treated with Organic Acid Salts and/or Bifidobacteria. J. food science. (1999). 64(2): P:241-247
Brea, B.D. R., Fernandeza, D. J., VanderJagta, M. W., Yung-Sheng H., Lu-Te, C., Mark M., Ronee A. and Robert H. G. Fatty acid, amino acid and trace mineral analysis of three complementary foods from Jos, Nigeria. J. of Food Comp. and Ana. .(2005)V 18, Iss.7, 675-690
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