بررسی مقادیر فلزات سنگین و ریز مغذی های مهم در شیر خشک و غذای کودک متداول در سطح بازار تهران

نوع مقاله : مقاله علمی - پژوهشی

نویسندگان

1 گروه علوم و صنایع غذایی، واحد سوادکوه، دانشگاه آزاد اسلامی، سوادکوه، ایران

2 گروه شیمی، واحد سوادکوه، دانشگاه ازاد اسلامی، سوادکوه، ایران

3 گروه کشاورزی، واحد سوادکوه، دانشگاه آزاد اسلامی، سوادکوه، ایران

10.30495/jftn.2022.65970.11192

چکیده

مقدمه: در حال حاضر شیر خشک یا مواد غذایی کمکی علیرغم اهمیت تغذیه با شیر مادر، در تامین غذای کودکان در جهان نقش قابل توجهی دارند. هدف از این مطالعه اندازه گیری میزان فلزات سنگین و ریز مغذی ها در شیر خشک و غذای کودک می باشد. فلزات سنگین کادمیوم، سرب، آرسنیک بالاترین عوارض را در انسان بویژه در کودکان ایجاد می کنند و Fe، Mg،Ca و Zn از ریزمغذی های مهم هستند که در صورت کمبود در مواد غذایی منجر به اثرات سوئی بر سلامت کودکان می شوند. مواد وروشها: این مطالعه بر روی 8 نمونه غذای کودک از 6 محصول تجاری رایج در بازارانجام شد. نمونه ها توسط اسید نیتریک هضم و سپس مقدار عناصر موجود در آن ها آنالیز و به طور کمی اندازه گیری شد .نمونه برداری به روش سرشماری و اندازه گیری به روش های نشر القایی پلاسما انجام شد. نتایج با روش آمار توصیفی گزارش گردید. نتایج نشان داد که دامنه آرسنیک از 8- 1/2میکروگرم بر گرم بوده و در همه نمونه ها مقدار آن بیش از حد مجاز بوده است. مقدار کادمیوم ناچیز و دامنه سرب از 103/0 - 012/0 میکروگرم بر گرم و در حد مجاز می باشد. دامنه مقدار کلسیم 6409- 3195 میکروگرم بر گرم می باشد و تنها در تیمارهای شماره 3 و4 در حد استاندارد بوده است. دامنه آهن در نمونه ها 115- 19 و منیزیم 949- 385 میکروگرم بر گرم بوده و هر دو عنصر در حد استاندارد می باشد، دامنه روی 26- 0 میکروگرم بر گرم و کمتر از حد ضروری بوده است. نتیجه گیری: با توجه به نتایج این تحقیق مقادیر آرسنیک در نمونه های شیر خشک و غذای کودک بالاتر از حد مجاز تعیین شده است و برخی تیمارهای کلسیم و روی کمتر از حد استاندارد هستند که باید بیشتر مورد توجه قرار گیرند.

کلیدواژه‌ها


عنوان مقاله [English]

Investigation of heavy metals and important micro nutrients in milk powder and common baby food in Tehran market

نویسندگان [English]

  • Mahdieh Khazai 1
  • Shiva Dehghan Abkenar 2
  • Nazanin Khakipour 3
1 Department of food science, Savadkooh branch, Islamic azad university, savadkooh, iran
2 Department of chemictry, Savadkooh branch, Islamic Azad University, Savadkooh, Iran
3 Department of agriculture, Savadkooh Branch, Islamic Azad University, Savadkooh, Iran
چکیده [English]

Introduction: Powdered milk or complementary foods, despite the importance of
breastfeeding, play an important role in providing baby food in the world. The aim of this
study was to measure the amount of heavy metals in baby food. Heavy metals cadmium, lead,
and arsenic cause the highest effects in humans, especially in children, and Fe, Mg, Ca, and
Zn are important micronutrients that, if deficient in nutrients, can have adverse effects on
children's health.
Materials and Methods: This study was performed on 8 baby food samples from 6 common
commercial products in the market. Sampling was carried out by census method and
measurement by induced plasma emission ICP-OES methods.
Results: The results were reported by descriptive statistics. The results showed that arsenic
ranged between 2.8 to 8 ppm in all the samples examined that indicated excessive
concentration of this heavy metal while the trace concentration of cadmium was observed.
Lead concentration was in the range of 0.012 to 0.103 ppm. The concentration of iron,
calcium, magnesium and zinc in some samples agreed with the standard values while in some
indicated lower content.
Conclusion: According to the results of this investigation, the amount of arsenic in baby food
samples is higher than the specified limit. Some attention should be given to those samples
that contain lower contents of calcium and zinc as noticed by standard values.

کلیدواژه‌ها [English]

  • Baby food
  • Dry milk
  • Micronutrients
  • Metal contaminants
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