کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6404094 1330899 2014 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of oxygen absorber on accumulation of free fatty acids in brown rice and whole grain wheat during storage
ترجمه فارسی عنوان
اثر جذب اکسیژن بر انباشت اسیدهای چرب آزاد در برنج قهوه ای و گندم کل دانه در طول ذخیره سازی
کلمات کلیدی
برنج قهوه ای، گندم دانه ای، تخریب لیپید، جذب اکسیژن، ذخیره سازی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی


- Lipids degradation in unpolished cereals during storage was investigated.
- Brown rice, rice with germ and whole grain wheat were selected as a sample.
- Storage with oxygen absorber accelerated free fatty acids accumulation in the lipids.
- Oxygen absorber would prevent oxidative degradation of free fatty acids.
- Antioxidative effect of oxygen absorber was confirmed by tocochromanols content.

Because rapid rancidities of lipids in unpolished grains, such as brown rice and whole grain wheat, are often problematic, Suppressions of their lipid degradations during postharvest therefore important for their further utilization. In this study, effect of oxygen absorber on lipid deterioration in unpolished grain during storage was investigated. Kernels and flours of brown rice, rice with germ and whole grain wheat were stored for eight weeks at 4 °C and 26 °C, with and without oxygen absorber. Free fatty acids (FFAs) accumulation in the unpolished grains during storage was accelerated by polishing, milling and storage at high temperature (26 °C), because these storage conditions stimulated activities of their lipid hydrolyses. When oxygen absorber was added and the storage system was sealed, additional FFAs accumulations in these unpolished grains. Decreases both in absolute amounts of linoleic acids of the lipids and in total tocochromanols contained in these unpolished grains were depressed by addition of oxygen absorber to the storage system, which was confirmed by an anti-oxidative effect of oxygen absorber. These results suggested that introduction of oxygen absorber into the storage system of unpolished grains would be effective under the condition where their hydrolytic activities of lipids are suppressed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 58, Issue 1, September 2014, Pages 222-229
نویسندگان
, , , , , , ,