کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5133967 1492072 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cooked garlic and antioxidant activity: Correlation with organosulfur compound composition
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Cooked garlic and antioxidant activity: Correlation with organosulfur compound composition
چکیده انگلیسی


- Home cooked garlic retained antioxidant activity.
- Raw garlic evidenced mainly antiradical activity and ferric reducing capacity.
- Antioxidant mechanism was mostly demonstrated in stir-fried garlic samples.
- Antioxidant activities of home-cooked garlic were evaluated by five methodologies.
- Relationships were established among OSCs, garlic samples and antioxidant activities.

The antioxidant properties and the main beneficial organosulphur compounds of home-cooked garlic samples were studied in order to establish relationships between them. Antioxidant activity was tested by free radical scavenging against 2,2-diphenyl-1-picrylhydrazyl radical (DPPH) and 2,2′-azino-bis-(3-ethylbenzo-thiazoline-6-sulfonic acid) diammonium salt (ABTS+), Fe(III) reducing ability (FRAP) and linoleic acid co-oxidation initiated by soybean lipoxygenase in a micelle system. DPPH, ABTS and FRAP assays showed the highest activity for raw garlic samples, while β-carotene bleaching assay yielded the highest activity for stir-fried garlic. Pure organosulphur compounds tested by DPPH, FRAP and β-carotene bleaching assays showed that allicin had an antiradical action mechanism, as well as iron reducing capacity; while antioxidant activity was the main mechanism for ajoenes and 2-VD. To our knowledge, this study is the first demonstration that home-cooked garlic retains its antioxidant activity, and, at the same time, elucidates the mechanisms involved in this activity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 220, 1 April 2017, Pages 219-224
نویسندگان
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