کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6403804 1330897 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Emulsifying properties of proteins extracted from Australian canola meal
ترجمه فارسی عنوان
خواص امولسیون پروتئین استخراج شده از وعده کلوچه استرالیا
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک دانش تغذیه
چکیده انگلیسی


- Emulsion forming properties of Glo fraction were better than Alb fraction and CPI.
- Glo fraction had better emulsion forming properties than SPI at acidic pH range only.
- Most of the emulsions showed no change in droplet size during 7 days storage.
- Most emulsions creamed after 24 h except CPI- and SPI-stabilized emulsions at pH 9.
- Increased EAI of a protein did not result in definite smaller emulsion droplet size.

Canola protein albumin fraction, globulin fraction, and canola protein isolate (CPI) were compared to commercial soy protein isolate (SPI) in terms of their emulsifying properties at various pH values. The globulin fraction had higher emulsifying capacity (EC), higher emulsifying activity index (EAI), and the droplet size of emulsions it stabilized was consistently smaller irrespective of pH compared to albumin fraction or CPI. In comparison to SPI, globulin fractions also had higher EC at all pH values tested, higher EAI at acidic pH, and smaller or comparable average emulsion droplet size at both pH 4 and 7. The stability of canola protein based emulsions were comparable to those of SPI based emulsions at most pH values (except the emulsion stabilized by the CPI at pH 4), with no significant (p > 0.05) changes in droplet size during storage for up to 7 days at room temperature. These emulsions, however, experienced separation into the emulsion and serum phases after 24 h storage at room temperature with the exception of CPI- and SPI-stabilized emulsions at pH 9. This study demonstrates the comparable emulsifying properties (forming or stabilizing) of some canola proteins to commercially available SPI, suggesting the potential use of canola proteins in food applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: LWT - Food Science and Technology - Volume 57, Issue 1, June 2014, Pages 376-382
نویسندگان
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