کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7592057 1492109 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of water, metallic ions, fatty acid and temperature on oxidative stability of 1-octacosanol from sugarcane rind
ترجمه فارسی عنوان
اثر آب، یونهای فلزی، اسید چرب و درجه حرارت بر پایداری اکسیداتیو 1-اکتاواسانول از پوست نخود فرنگی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
The chemical composition and selected physical parameters of crude 1-octacosanol (1-OC) extracted from sugarcane rind have been determined. GC-MS results exhibited that 1-OC sample was primarily composed of 1-OC (45.17%), 1-docosene (12.04%), 1-triacontanol (0.23%), 1-heneicosanol (0.33%), 1-tetracosanal (0.28%), campesterol (4.5%), stigmasterol (9.12%) and β-sitosterol (8.23%). The linoleic acid had important effects on physical and chemical properties of 1-OC sample, as it notably changed the melting point and the onset oxidation temperature To of 1-OC sample from 83.75 ± 0.35 °C to 63.25 ± 0.35 °C and 245.64 ± 2.04 °C to 160.03 ± 0.01 °C, respectively. It was also proved that the oxidation reactions were significantly different at different temperature levels. 1-OC was stable up to 245.64 ± 2.04 °C. However, when the temperature continued to rise, 1-OC and its oxidation products started to be oxidized. Therefore, attention should be paid to the quality of 1-OC during the preparation of food and to minimize the undesirable breakdown products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 182, 1 September 2015, Pages 171-177
نویسندگان
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