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- Title
Ácidos grasos y ácido linoleico conjugado en leche orgánica producida en el sureste de México.
- Authors
Gutiérrez T., Rey; Vega Y. L., Salvador; Schettino B., Beatriz; Pérez G., José Jesús; Ruíz Rojas, Jorge Luis; Radilla Vázquez, Claudia Cecilia; Del Muro Delgado, Rubén
- Abstract
Objective. To determine the fatty acid (FA) profile, conjugated linoleic acid (CLA) and isomers in cow's milk produced under organic conditions in southeastern Mexico. Materials and methods. Forty-eight milk samples were collected during one year from three production units (PU 1, 2 and 3) and a collecting tank (CT) in the municipality of Tecpatán, Chiapas (12 months x 4 = 48), following the guidelines established in Mexican regulations. Fat was extracted with detergent solution; AG analysis was performed by gas chromatography with flame ionization detector and ALC and isomers were obtained by high performance liquid chromatography (HPLC) with UV-Vis detector. Results. Chromatographic analyses identified and quantified 23 FA in all milks, from C4 to C20:1. Statistical analysis (ANOVA, Tukey) showed significance (p<0.05) at C4-C10, C16, C18, C18:1n9t, C18:2n6 and C20; in all cases the TC was similar in at least two PU. The mean values over time exhibited homogeneous regularity behavior. CLA and 9 of its isomers were also determined; ANOVA did not show significance. The isomer C18:2 9c-11t had the highest percentage of total CLA with a mean value of 90.06%. Conclusions. Gas and liquid chromatographic analyses allowed characterization of FA, CLA and isomers profiles in organic milk produced in southeastern Mexico, which had not been studied so far.
- Subjects
MEXICO; CHIAPAS (Mexico); HIGH performance liquid chromatography; FLAME ionization detectors; CHROMATOGRAPHIC analysis; GAS chromatography; LINOLEIC acid; ISOMERS
- Publication
Revista MVZ Córdoba, 2022, Vol 27, Issue 2, p1
- ISSN
0122-0268
- Publication type
Article
- DOI
10.21897/rmvz.2541