Abstract The evaluation of nutritional or functional components in grain products is an important feature for the industry, especially when recent regulations require a correct nutrition labelling, valid during all the shelf life of the product. For that reason, industry usually makes many efforts to develop simple and reliable analytical methods that can be easily applied in any quality control laboratories for routine analysis. Spectrofluorimetric analysis of thiamine and riboflavin are sensitive, but need specific equipment. A few HPLC-UV methods have been described but they are less sensitive, and present difficulties due to interfering compounds, particularly in complex food matrixes, as grains and derivatives. A combination of extraction and separation systems, that allows enough sensitivity, precision and accuracy for the analysis of vitamin B 1 and B 2 in complex cereal food products, by isocratic UV-HPLC, in a single wavelength simultaneous separation is presented, with the advantage of using low-cost equipment requirements, simple sample pre-treatment and short time.
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[21] US EPA, Guidance for Methods Development and Methods Validation for the Resource Conservation and Recovery Act (RCRA) Program, Washington, 1995. [22] AOAC Peer Verified Methods Program. Manual on Policies and Procedures, Arlington, VA, 1993. Dec 9, 1997 - Section 3.11 Methods for Reducing Toxic Effects. Consistency across profiles and adherence to instructions in the. A peer review panel was assembled for pentachlorophenol. Program (NTP) Feeding Studies and the Types of Tumors They. Gestational days 6–18 (Argus 1993a/Bernard et al.
The achievement of this goal has involved the optimization of compatible extraction and measurement protocols for cereal matrices, comparing seven different separation conditions and six extraction/clarification matrices analysis. The selected method was comparatively validated and compared to reference AOAC spectrofluorimetric methods, providing comparable linearity and accuracy, with better specificity and precision parameters, as well as practical applicability.
Journal Journal of Cereal Science – Elsevier Published: May 1, 2012.