INVESTIGADORES
ZAMPINI Iris Catiana
congresos y reuniones científicas
Título:
ANTIOXIDANT ACTIVITY OF MOTHER'S MILK IN VILLA VIEJA, TRANCAS
Autor/es:
RAMASCO LUCÍA; ORDÓÑEZ ROXANA; ZAMPINI, IRIS CATIANA; ROJO HEBE P; ISLA M. INÉS.
Lugar:
Tafí del Valle- Tucumán- Argentina
Reunión:
Jornada; XXIII Jornadas Científicas de la Asociación de Biología de Tucumán; 2006
Institución organizadora:
Asociación de Biología de Tucumán
Resumen:
Maternal milk is rich with aminoacids and glicoproteins, and the presence of antioxidant molecules have been brought to attention. The geographical are a could be a factor for the antioxidant activ­ity. The objective of this work is to determine the antioxidant ca­pacity of samples ofhuman milk from mothers from a rural popu­lation. Samples ofhuman milk donated by mothers with previous consent were used. The watery fraction was used to determine the total proteins (Lowry and col.) and the antioxidant activity. This last one was evaluated using free radicals centered on nitrogen at­oms such as DPPH (1.1 difenil- 2-picrylhydrazyl) and the radical cation 2,2-azino bis-(3 -ethy 1 benzothiazo li ne- 6 -sulfoni c acid) (ABTS+). The correlation between the total antioxidant activity and the protein content was determined by analytical statistics using a multi-level regression model. The coefficient grade of the multi­level regression model was -0.047. Al! the samples evaluated have antioxidant capacity which increases with the augmentation ofthe total protein concentration. Nevertheless, with the equality ofpro­tein concentration the depuration percentages in al! the samples are different, indicating that the total antioxidant activity depends on the type of proteins and the levels of other components with potential antioxidant activity.