کاربرد طیف‌سنجی مادون‌قرمز تبدیل فوریه و روش‌های طبقه‌بندی کمومتریکس در شناسایی تقلبات پودر دارچین

مقالات آماده انتشار

نوع مقاله : مقاله پژوهشی انگلیسی

نویسندگان

محمد مسعودی

رسول خدابخشیان

محمود رضا گلزاریان

گروه مهندسی بیوسیستم، دانشکده کشاورزی، دانشگاه فردوسی مشهد، مشهد، ایران

https://doi.org/10.22067/jam.2026.98580.1489

چکیده

دارچین یک ادویه معطر با ارزش بالا است که به‌طور گسترده در صنایع غذایی و دارویی مورد استفاده قرار می‌گیرد. به دلیل کاربردهای گسترده، دارچین در معرض تقلب غذایی قرار دارد که وجود روش‌های معتبر تشخیص اصالت را ضروری می‌سازد. این مطالعه از طیف‌سنجی فروسرخ تبدیل فوریه (FTIR) و تحلیل الگوهای طیفی به‌منظور ایجاد یک روش قابل‌اطمینان برای تشخیص تقلب در پودر دارچین، با مقایسه نمونه‌های اصیل و نمونه‌های دستکاری‌شده، استفاده می‌کند. هدف نهایی، ارائه‌ی یک روش‌شناسی عملی برای شناسایی تقلب در صنعت ادویه است. در این کار، از طیف‌سنجی فروسرخ تبدیل فوریه (FTIR) به همراه تکنیک‌های تشخیص الگو برای احراز اصالت پودر دارچین استفاده شد. به‌منظور شناسایی و طبقه‌بندی نمونه‌های تقلبی (با مواد افزودنی شامل: پودر سویا، پودر پوست فندق و پودر نان خشک، در غلظت‌های مختلف ۵، ۱۰ و ۱۵ درصد وزنی/وزنی) به‌صورت غیرمخرب، از تحلیل مؤلفه‌های اصلی (PCA) به‌عنوان روش بدون نظارت و از تحلیل تفکیکی حداقل مربعات جزئی (PLS-DA) و مدل‌سازی مستقل نرمال مشابهت رده‌ها (SIMCA) به‌عنوان رویکردهای تشخیص الگوی نظارت‌شده استفاده شد. نتایج نشان داد که اگرچه داده‌های طیفی نمونه‌ها با استفاده از تکنیک PCA به‌خوبی طبقه‌بندی شدند، اما هم‌پوشانی‌هایی بین برخی گروه‌ها مشاهده گردید. دقت کلی طبقه‌بندی توسط طبقه‌بندهای SIMCA و PLS-DA به‌ترتیب ۸۳ و ۹۰ درصد بود. بر اساس مدل سازی PCA، روش SIMCA امکان طبقه‌بندی نمونه‌ها را به دو گروه مجزا (خالص در برابر تقلبی) فراهم کرد و دقت طبقه‌بندی این مدل دوکلاسی به ۱۰۰ درصد رسید. این یافته‌ها کارایی ترکیب طیف‌سنجی FTIR با تکنیک‌های تشخیص الگو را برای احراز اصالت غیرمخرب و مقاوم پودر دارچین تقلبی تأیید کرده و به کنترل کیفیت در صنعت ادویه کمک می‌نماید.

کلیدواژه‌ها

تشخیص تقلب

دارچین

طیف‌سنجی مادون قرمز

کنترل کیفیت

موضوعات

• مهندسی پس‌ از برداشت، و فرآوری محصولات کشاورزی

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Authors retain the copyright. This is an open access article distributed under Creative Commons Attribution 4.0 International License (CC BY 4.0)

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