کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7585308 | 1492034 | 2018 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Lactulose determination in UHT milk by CZE-UV with indirect detection
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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
Lactulose is not found naturally in milk, but it has been detected in small quantities in heated dairy products. It can therefore be used as an indicator of the severity of heat treatment for dairy products. This study proposes an alternative method for lactulose quantification in milk using capillary zone electrophoresis with ultraviolet detection (CZE-UV). The investigation used several Brazilian UHT milk samples, and various sample pretreatment methods and injection conditions were considered. Optimal separation results were achieved using Carrez clarification solutions. Low detection and quantification limits were obtained, and good precision and high recovery rates indicated the applicability of the method for analysis of milk. Due to matrix effects, single-point standard addition was used for lactulose quantification. High lactulose concentrations (>1000â¯mgâ¯Lâ1) suggested that recirculation may have occurred during milk processing. The findings demonstrate that the CZE-UV method is a viable alternative for quality process control.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 258, 30 August 2018, Pages 337-342
Journal: Food Chemistry - Volume 258, 30 August 2018, Pages 337-342
نویسندگان
Leandra Natália de Oliveira Neves, Rafael Marques, Paulo Henrique Fonseca da Silva, Marcone Augusto Leal de Oliveira,