کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585575 | 1492038 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Kinetics of drosopterin release as indicator pigment for heat-induced color changes of brown shrimp (Crangon crangon)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Kinetics of drosopterin release as indicator pigment for heat-induced color changes of brown shrimp (Crangon crangon) Kinetics of drosopterin release as indicator pigment for heat-induced color changes of brown shrimp (Crangon crangon)](/preview/png/7585575.png)
چکیده انگلیسی
Heat-induced color changes of crustaceans are commonly described as the release of astaxanthin. In this study on Crangon crangon, it was found that astaxanthin plays a minor role in the (dis)coloration. By LC-HRMS, two polar, process dependent pigments were found. One pigment was identified as riboflavin and one as drosopterin (level-2 certainty). Thermal treatments had highest effect on drosopterin concentration changes and were chosen as indicator for a kinetic study of heat-induced color changes. The kinetic data fitted a consecutive step model (r2â¯=â¯0.971), including a first step in which drosopterin was released (kd,85°Câ¯=â¯0.95â¯Â±â¯0.09â¯minâ1; Eadâ¯=â¯105â¯Â±â¯4â¯kJ/mol) and a second step where drosopterin is degraded (kb,85°Câ¯=â¯0.02â¯Â±â¯0.002â¯minâ1; Eab =â¯190â¯Â±â¯15â¯kJ/mol). The kinetic model shows that shrimp should be heated at lower temperatures (<80â¯Â°C) than the heating temperatures used by fishermen (86-101â¯Â°C), creating opportunities for quality optimization. Therefore, this study delivers essential information needed in a comprehensive quality optimization study of the cooked brown shrimp.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 254, 15 July 2018, Pages 359-366
Journal: Food Chemistry - Volume 254, 15 July 2018, Pages 359-366
نویسندگان
Thomas Verhaeghe, Christof Van Poucke, Geertrui Vlaemynck, Jan De Block, Marc Hendrickx,