Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure
Analytical data obtained on deoxynivalenol (DON) concentration in naturally contaminated wheat during processing in an industrial mill were statistically analyzed, and the distribution functions of DON concentration in lots of wheat, bran, wheat flour, and gluten were estimated. The analytical metho...
Guardado en:
| Autores principales: | , , , , |
|---|---|
| Formato: | JOUR |
| Materias: | |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10603271_v86_n3_p551_Samar |
| Aporte de: |
| id |
todo:paper_10603271_v86_n3_p551_Samar |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_10603271_v86_n3_p551_Samar2023-10-03T16:01:06Z Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure Samar, M.M. Fontán, C.F. Resnik, S.L. Pacin, A.M. Castillo, M.D. Alcohols Contamination Error analysis Food processing Food products Polynomials Wheat flour Agricultural products Triticum aestivum gluten trichothecene derivative vomitoxin article chemistry dietary fiber flour wheat Dietary Fiber Flour Gluten Trichothecenes Triticum Analytical data obtained on deoxynivalenol (DON) concentration in naturally contaminated wheat during processing in an industrial mill were statistically analyzed, and the distribution functions of DON concentration in lots of wheat, bran, wheat flour, and gluten were estimated. The analytical method had acceptable precision (HORRAT 0.250.32) for each test sample. The total variance combined sampling, sample preparation, and analytical variances were 0.188, 0.033, 0.42, and 0.0014 ppm2 for wheat, 1.93; flour, 0.99; bran, 4.68; and gluten, 0.29, respectively. The distribution function of DON contamination presented an asymmetric tail for high values of concentration in wheat grains and wheat flour; in bran it seemed to be bimodal with 2 separated peaks of different concentrations; in gluten the normal distribution function gave a reasonably good fit to empirical data. The function η(c) = -ln(-lnp), where p (c) is the cumulative distribution function was linear with c in the so-called extreme-value type I distribution and could be fitted by a cubic polynomial in c in the distributions determined for all the products. This variability and distributional information contributes to the design of better sampling plans in order to reduce the total variability and to estimate errors in the evaluation of DON concentration in lots of wheat and wheat products. Fil:Samar, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Resnik, S.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Castillo, M.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_10603271_v86_n3_p551_Samar |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Alcohols Contamination Error analysis Food processing Food products Polynomials Wheat flour Agricultural products Triticum aestivum gluten trichothecene derivative vomitoxin article chemistry dietary fiber flour wheat Dietary Fiber Flour Gluten Trichothecenes Triticum |
| spellingShingle |
Alcohols Contamination Error analysis Food processing Food products Polynomials Wheat flour Agricultural products Triticum aestivum gluten trichothecene derivative vomitoxin article chemistry dietary fiber flour wheat Dietary Fiber Flour Gluten Trichothecenes Triticum Samar, M.M. Fontán, C.F. Resnik, S.L. Pacin, A.M. Castillo, M.D. Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| topic_facet |
Alcohols Contamination Error analysis Food processing Food products Polynomials Wheat flour Agricultural products Triticum aestivum gluten trichothecene derivative vomitoxin article chemistry dietary fiber flour wheat Dietary Fiber Flour Gluten Trichothecenes Triticum |
| description |
Analytical data obtained on deoxynivalenol (DON) concentration in naturally contaminated wheat during processing in an industrial mill were statistically analyzed, and the distribution functions of DON concentration in lots of wheat, bran, wheat flour, and gluten were estimated. The analytical method had acceptable precision (HORRAT 0.250.32) for each test sample. The total variance combined sampling, sample preparation, and analytical variances were 0.188, 0.033, 0.42, and 0.0014 ppm2 for wheat, 1.93; flour, 0.99; bran, 4.68; and gluten, 0.29, respectively. The distribution function of DON contamination presented an asymmetric tail for high values of concentration in wheat grains and wheat flour; in bran it seemed to be bimodal with 2 separated peaks of different concentrations; in gluten the normal distribution function gave a reasonably good fit to empirical data. The function η(c) = -ln(-lnp), where p (c) is the cumulative distribution function was linear with c in the so-called extreme-value type I distribution and could be fitted by a cubic polynomial in c in the distributions determined for all the products. This variability and distributional information contributes to the design of better sampling plans in order to reduce the total variability and to estimate errors in the evaluation of DON concentration in lots of wheat and wheat products. |
| format |
JOUR |
| author |
Samar, M.M. Fontán, C.F. Resnik, S.L. Pacin, A.M. Castillo, M.D. |
| author_facet |
Samar, M.M. Fontán, C.F. Resnik, S.L. Pacin, A.M. Castillo, M.D. |
| author_sort |
Samar, M.M. |
| title |
Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| title_short |
Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| title_full |
Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| title_fullStr |
Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| title_full_unstemmed |
Distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| title_sort |
distribution of deoxynivalenol in wheat, wheat flour, bran, and gluten, and variability associated with the test procedure |
| url |
http://hdl.handle.net/20.500.12110/paper_10603271_v86_n3_p551_Samar |
| work_keys_str_mv |
AT samarmm distributionofdeoxynivalenolinwheatwheatflourbranandglutenandvariabilityassociatedwiththetestprocedure AT fontancf distributionofdeoxynivalenolinwheatwheatflourbranandglutenandvariabilityassociatedwiththetestprocedure AT resniksl distributionofdeoxynivalenolinwheatwheatflourbranandglutenandvariabilityassociatedwiththetestprocedure AT pacinam distributionofdeoxynivalenolinwheatwheatflourbranandglutenandvariabilityassociatedwiththetestprocedure AT castillomd distributionofdeoxynivalenolinwheatwheatflourbranandglutenandvariabilityassociatedwiththetestprocedure |
| _version_ |
1807315533248331776 |