کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7598088 1492133 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimization conditions of samples saponification for tocopherol analysis
ترجمه فارسی عنوان
شرایط بهینه سازی بافتن نمونه برای تجزیه و تحلیل توکوفرول
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
A full factorial design 22 (two factors at two levels) with duplicates was performed to investigate the influence of the factors agitation time (2 and 4 h) and the percentage of KOH (60% and 80% w/v) in the saponification of samples for the determination of α, β and γ + δ-tocopherols. The study used samples of peanuts (cultivar armadillo), produced and marketed in Maringá, PR. The factors % KOH and agitation time were significant, and an increase in their values contributed negatively to the responses. The interaction effect was not significant for the response δ-tocopherol, and the contribution of this effect to the other responses was positive, but less than 10%. The ANOVA and response surfaces analysis showed that the most efficient saponification procedure was obtained using a 60% (w/v) solution of KOH and with an agitation time of 2 h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 158, 1 September 2014, Pages 315-318
نویسندگان
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