کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7600972 | 1492149 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Impact of diacylglycerol and monoacylglycerol on the physical and chemical properties of stripped soybean oil
ترجمه فارسی عنوان
تأثیر دی سیکللیسرول و مونوآسیکل گلیسرول بر خواص فیزیکی و شیمیایی روغن سویا خرد شده
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کلمات کلیدی
اکسیداسیون لیپید، دیسیل گلیسرول، مونوآسیلیک گلیسرول، روغن سویا تخلیه شده، مشخصات فیزیکی،
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
In this study, we determined the effect of diacylglycerol (DAG) and monoacylglycerol (MAG) on the oxidative stability of stripped soybean oil (SSO) and on the antioxidative effectiveness of α-tocopherol in SSO. We also examined the influence of DAG and MAG on the physical properties of SSO. DAG (0-2.5 wt%) had little effect on the chemical stability of SSO and on the antioxidative activity of 40 μM α-tocopherol in SSO (55 °C). MAG (0-2.5 wt%) had no remarkable impact on the chemical stability of SSO. The addition of MAG (0.5 wt%) suppressed the effectiveness of α-tocopherol (40 μM) in SSO. The addition of DAG did not cause an appreciable change in the interfacial tension (IFT) of SSO, indicating that it was not strongly surface active. MAG significantly decreased the interfacial tension of SSO, due to its strong surface active properties. Wide angle X-ray scattering (WAXS) analysis showed that DAG did not alter the structured organisation of SSO, which remained in an amorphous form, whereas MAG led to strong scattering, indicating the formation of crystals. The physical properties of DAG and MAG in the SSO may be related to the chemical stability of SSO and the effectiveness of antioxidants incorporated. These results can be used to better understand the physicochemical mechanisms by which minor components impact oxidation of bulk oils.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 142, 1 January 2014, Pages 365-372
Journal: Food Chemistry - Volume 142, 1 January 2014, Pages 365-372
نویسندگان
Bingcan Chen, David Julian McClements, Eric Andrew Decker,