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بررسی ویژگیهای فیزیکوشیمیایی روغن کنجد تولید شده به روش پرس سرد | ||
مهندسی بیوسیستم ایران | ||
مقاله 8، دوره 50، شماره 3، آبان 1398، صفحه 581-593 اصل مقاله (731.96 K) | ||
نوع مقاله: مقاله پژوهشی | ||
شناسه دیجیتال (DOI): 10.22059/ijbse.2019.269801.665119 | ||
نویسندگان | ||
مریم جلیلی1؛ لادن رشیدی* 1؛ حمید رشیدی نوده2 | ||
1عضو هیئت علمی استادیار ،گروه مواد غذایی، پژوهشکده صنایع غذایی و کشاورزی، پژوهشگاه استاندارد، کرج، ایران | ||
2پژوهشگر پسادکترا، گروه مواد غذایی، پژوهشکده صنایع غذایی و کشاورزی، پژوهشگاه استاندارد، کرج، ایران | ||
چکیده | ||
هدف از این تحقیق، بررسی ویژگیهای روغن های کنجد تهیه شده به روش پرس سرد بود. تعداد 18 نمونه روغن کنجد جمع آوری و علاوه بر ویژگیهای کیفی مقدار اسیدهای چرب سیس و ترانس، استرولها، استیرن و توکوفرولها در آنها اندازه گیری شد. نتایج نشان داد از بین نمونه های مورد بررسی، 7 نمونه (حدود 39%) حداقل در یکی از ویژگیهای مورد بررسی با استاندارد ملی مطابقت نداشته و بیشترین میزان عدم انطباق نمونه ها مربوط به مقدار توکوفرولها و استرولها بود. مهمترین استرول موجود در روغن کنجد از نظر کمی بتاسیتوسترول بود (7/57 تا 9/61%). نتایج نشان داد نمونه ها از ویژگیهای کیفی خوبی برخوردارند، گرچه کاهش توکوفرول در برخی از نمونه ها مشاهده شد که میتواند به دلیل استفاده از المنتهای حرارتی حین استخراج روغن باشد. لذا تعیین میزان توکوفرول شاخص مهمی برای تعیین کیفیت روغن استحصال شده به روش پرس سرد میباشد. | ||
کلیدواژهها | ||
روغن کنجد؛ پرس سرد؛ کیفیت | ||
مراجع | ||
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