نوع مقاله : مقاله پژوهشی
نویسندگان
1 استادیار بخش تحقیقات فنی و مهندسی مرکز تحقیقات کشاورزی و منابع طبیعی آذربایجان غربی، سازمان تحقیقات، آموزش و ترویج کشاورزی، ارومیه،
2 گروه علوم و صنایع غذایی دانشگاه آزاد اسلامی واحد مراغه، مراغه، ایران
چکیده
در این پژوهش، تأثیر پوشش خوراکی کیتوزان (صفر، 0.5 و 1 درصد) همراه با عصاره دارچین (صفر، 2 و 4 درصد) بر رطوبت و خصوصیات بافتی، حسی و میکروبی کیک صبحانه روغنی در دوره 21 روز نگهداری در دمای محیط بررسی شده است. نتایج بررسی‌ها نشان داد که در دوره نگهداری، رطوبت نمونه شاهد 42.7 درصد کاهش، اما رشد قارچ‌ها 3.9 سیکل لگاریتمی افزایش پیدا کرده است. در اثر استفاده از پوشش کیتوزان در سطوح 0.5 و 1 درصد، مقدار رطوبت به ترتیب 19.5 و 25.4 درصد و فنریت نیز به ترتیب 1.5 و 0.4 درصد افزایش یافته در حالی که سفتی بافت 63 و 49 درصد و تعداد قارچ‌ها 1.5 و 1.7 سیکل لگاریتمی کاهش پیدا کرده است (0.05<p ). افزایش عصاره دارچین نیز اثر سینرژیستی بر این ویژگی‌ها نشان می‌دهد. با توجه به نتایج ارزیابی حسی، استفاده از پوشش کیتوزان موجب افزایش معنی‌دار امتیاز بافت و طعم کیک نسبت به نمونه شاهد شده است. افزودن عصاره دارچین نیز موجب افزایش امتیاز رنگ مغز کیک نسبت به نمونه شاهد گردیده است. با توجه به نتایج این بررسی، استفاده از 0.5 درصد کیتوزان همراه با 2 درصد عصاره دارچین برای پوششدهی کیک صبحانه اسفنجی بهترین تیمار شناخته شده است.
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
Effect of Chitosan Coating and Cinnamon Extract on Quality and Textural Properties of Oil Containing Breakfast Cake during Storage
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