با همکاری مشترک انجمن علوم و فناوری‌های شیمیایی ایران

نوع مقاله : مقاله پژوهشی کامل

نویسندگان

1 گروه ایمنی و کنترل کیفیت مواد غذایی، موسسه پژوهشی علوم و صنایع غذایی، مشهد، ایران

2 گروه شیمی مواد غذایی، موسسه پژوهشی علوم و صنایع غذایی، مشهد، ایران

3 گروه شیمی، کالج فناوری KCG، چنای، تامیل نادو، هند

چکیده

چکیده
تحقیق‌ حاضر اندازه گیری فلزات موجود در نمونه های زعفران جمع آوری شده از هفت نقطه در سطح استان خراسان رضوی را گزارش می کند. استان خراسان رضوی بزرگترین تولید کننده زعفران در ایران است و بیشتر از 95% تولید جهانی این ادویه ، در ایران تولید می شود. با افزایش آلودگی‌های محیطی، زعفران به انواع آلاینده های آلی و غیرآلی مانند فلزات سنگین آلوده می شود. به منظور برآورد مقدار فلزات زعفران، 21 نمونه زعفران در فصل گلدهی سال1397، جمع آوری و مقدار فلزات آنها اندازه گیری شد. غلظت عناصر میکرو شامل روی، آهن، کلسیم، منیزیم، سدیم، پتاسیم، و منگنز و فلزات سنگین شامل مس، سرب، کادمیم و کروم در نمونه های زعفران در سه مزرعه از هر شهرستان با دستگاه جذب اتمی مجهز به شعله و کوره تعیین و مورد تجزیه و تحلیل قرارگرفت. این تحقیق نشان داد کلاله‌های جمع شده زعفران حاوی طیف وسیعی از مواد معدنی و فلزات سنگین با رنج غلظتی مختلف هستند. طبق نتایج به دست آمده پتاسیم فراوان ترین عنصر و کادمیم کمترین عنصر موجود در زعفران است. این نتایج، استفاده از کودهای آلی به عنوان جایگزین کودهای شیمیایی برای کاهش غلظت فلزات سنگین به عنوان یک مدیریت زیست محیطی بسیارمطلوب را پیشنهاد می دهد.

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