کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585135 | 1492033 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Highly selective colorimetric detection of putrescine in fish products using o-phthalaldehyde derivatization reaction
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A highly selective colorimetric detection method for putrescine on the basis of an optimized derivatization reaction was established. With the aids of o-phthalaldehyde (OPA) and thioglycolic acid (TGA), putrescine was derived to become red derivatives (PUT-RD), the form that can be detected qualitatively and quantitatively by visual inspection and UV-vis spectrophotometer at λmax of 490â¯nm, respectively. Key parameters affecting the experiment were investigated by one-factor-at-a-time and response surface analysis. At the optimal condition, this colorimetric method achieved good linearity at putrescine concentrations ranging from 0.8 to 200â¯Î¼M with detection limit of 0.44â¯ÂµM. The method also has good selectivity when common amino acids and inorganic ions, as well as ethylenediamine, 1,3-propanediamine, 1,5-pentanediamine, and 1,6-hexanediamine were used as interferences. The established colorimetric method was successfully employed for the detection of putrescine in 10 commercial fish products.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 259, 1 September 2018, Pages 245-250
Journal: Food Chemistry - Volume 259, 1 September 2018, Pages 245-250
نویسندگان
Xuan Qi, Wei-Feng Wang, Jun Wang, Jun-Li Yang, Yan-Ping Shi,