مدلسازی جمعیت میکروبی جوانه گندم پوشش داده شده با امولسیون حاوی اسانس زرین‌گیاه در کیتوزان تحت بسته‌بندی اتمسفر اصلاح شده

مجله پژوهشهای علوم و صنایع غذایی ایران

مقاله 3، دوره 19، شماره 6 - شماره پیاپی 84، بهمن و اسفند 1402، صفحه 125-141   

نوع مقاله: مقاله پژوهشی لاتین

شناسه دیجیتال (DOI): 10.22067/ifstrj.2023.84145.1280

نویسندگان

نسیم نجفی¹؛ هاجر عباسی^{* 2}

¹گروه علوم و صنایع غذایی، دانشکده کشاورزی و منابع طبیعی، واحد اصفهان (خوراسگان(، دانشگاه آزاد اسلامی، اصفهان، ایران.

²گروه علوم و صنایع غذایی، دانشکده کشاورزی، واحد اصفهان (خوراسگان)، دانشگاه آزاد اسلامی، اصفهان، ایران.

چکیده

غلات تازه جوانه‌زده به‌دلیل فواید سلامتی بخشی که دارند، منبع غذایی محبوب و پرطرفدار به شمار می‌روند. آنها بسیار حساس بوده و در طول حمل و نقل، فرآوری و نگهداری بسیار مستعد به فساد میکروبی هستند. هدف از این پژوهش بررسی تأثیر پوشش نانوامولسیون حاوی کیتوزان (75/0-0 درصد) و اسانس زرین‌گیاه ( ppm0-300) در زمان غوطه‌وری (10-120 ثانیه) بر خواص میکروبی گندم تازه جوانه‌زده طی نگهداری در دمای 4 درجه سانتی‌گراد می‌باشد. مدلسازی اثر متغیرهای مستقل بر کیفیت محصول توسط روش سطح پاسخ انجام شد. نتایج نشان داد که افزایش غلظت اسانس و محلول کیتوزان باعث کاهش فساد میکروبی محصول می‌شود. غلظت بالای اسانس زرین‌گیاه جمعیت قارچی را پس از 12 روز کاهش داد. پوشش‌دهی گندم جوانه‌زده در سطح بهینه متغیرهای مستقل (62/0 درصد کیتوزان، 57 ppm، و 49/29 ثانیه زمان غوطه‌وری) موجب کاهش معنی‌دار جمعیت میکروبی و قارچی محصول گردید. این تیمار توانست افت وزن را کم کند و سفتی بافت، محتوی فنول کل و اسید آسکوربیک گندم جوانه‌زده را در طول دوره نگهداری سرد حفظ کند، بدون آنکه تأثیری بر خواص حسی آن داشته باشد. یافته‌های این تحقیق نشان داد که پوشش نانوامولسیونی مبتنی بر کیتوزان و اسانس زرین‌گیاه در سطوح مناسب می‌تواند در حفظ کیفیت و افزایش عمر ماندگاری گندم جوانه زده مفید و مؤثر باشد.

کلیدواژه‌ها

آنالیز میکروبی؛ بادرنجبویه دنایی؛ پوشش خوراکی؛ روش سطح پاسخ

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