Profile of triacylglycerols and percentage of palmitic acid at the sn-2 in breast milk substitutes [Perfil de triacilgliceroles y porcentaje de ácido palmítico en la posición sn-2 en sustitutos de leche materna]
Gonzalez H.F.,Idip Institute Desarrollo E Investigaciones Pediatricas Prof Dr Fernando Viteri |
Vicentin D.,Innovacion e Desarrollo e Investigacion |
Giumelli O.,Innovacion e Desarrollo e Investigacion |
Vazzano M.,Innovacion e Desarrollo e Investigacion |
Tavella M.,National University of La Plata
Archivos Argentinos de Pediatria | Year: 2012
The aim of this study was to analyze the percentage of palmitic acid at sn-2 position on triacylglycerols in infant formulas. We studied 6 infant formulas in the Argentinean market that are used as breast-milk substitutes during the first six months after delivery: 2 formulas with vegetable oils as basic source of lipids (F1, F2); 1 formula with milk fat and vegetable oils (F3); 1 formula with structured lipids and vegetable oils (F4); 2 formulas for pre-term infants, one with milk fat and other oils (F5), and the other with vegetable oils (F6). Results showed that F1, F2, F3 and F4 presented 14.6%, 14.8%, 48.1% and 44.5%, respectively, of palmitic acid at sn-2 position, whereas formulas F5 and F6 had 49.5% and 14.6%, respectively, of palmitic acid at sn-2 position. Milk-based infant formulas had the highest concentration of palmitic acid at sn-2 position.
Randomised, double-blind and placebo-controlled study of the effect of a synbiotic dairy product on orocecal transit time in healthy adult women [Estudio aleatorizado, doble-ciego y controlado por placebo del efecto de un simbiótico sobre el tránsito intestinal en mujeres adultas sanas]
Malpeli A.,Idip Institute Desarrollo E Investigaciones Pediatricas Prof Dr Fernando Viteri |
Gonzalez S.,CONICET |
Apas A.,CONICET |
Gonzalez H.F.,Idip Institute Desarrollo E Investigaciones Pediatricas Prof Dr Fernando Viteri
Nutricion Hospitalaria | Year: 2012
Objective: To evaluate oro-cecal intestinal transit time (ITT) before and after administration of a dairy product containing Bifidobacterium BB12, Lactobacillus casei CRL 431 and fiber in healthy women. Methods: A prospective, randomised, double-blind and cross-over study with a 4-phase design (run-in: time 0 [T0], two intervention periods: time 1 [T1] and time 3 [T3] and a wash-out: time 2, [T2]) was performed. Participants were asked about bowel movement and fiber consumption. ITT was assessed by the carmine red dye method. Results: Mean age was 40.7 years (n = 102 healthy women; 83 completed the study). In women with initial ITT (IITT) ≥ 48 h consuming the synbiotic product, mean IITT and final ITT (FITT) was 86.9 ± 38.5 h and 51.2 ± 29.8 h (-40.9%), as compared to women consuming the control yoghurt (IITT, 80.8 ± 31.7 h; FITT, 69.5 ± 31.5 h; -13.8%) (p = 0.001). IITT in women with functional constipation consuming the control yoghurt was 57.0 ± 30.0 h; such figure increased 2.8 h after yoghurt consumption (FITT, 59.8 ± 3 0.2 h; +4.9%). Conversely, IITT in women who received the synbiotic yoghurt was 69.0 ± 49.6 h, with a -27.5% decrease 19 h later (FITT, 50.0 ± 27.5 h; p = 0.023). Enteric lactic flora stabilization was significantly higher in women who initially consumed the synbiotic product (p < 0.1). Conclusion: ITT decreased significantly after consumption of the synbiotic product. Such beneficial effect was more evident in women with IITT ≥ 48 h and with functional constipation.