Effects of quantity and layers number of low trans margarines on puff pastry quality
2017
Zahorec, Jana J. (Faculty of Technology, Novi Sad (Serbia)) | Šoronja-Simović, Dragana M. (Faculty of Technology, Novi Sad (Serbia)) | Šereš, Zita I. (Faculty of Technology, Novi Sad (Serbia)) | Šimurina, Olivera D. (Institute of Food Technology, Novi Sad (Serbia)) | Selaković, Anastasija I. (MiniPani doo, Subotica (Serbia)) | Maravić, Nikola R. (Faculty of Technology, Novi Sad (Serbia)) | Filipčev, Bojana V. (Institute of Food Technology, Novi Sad (Serbia))
The aim of this study was to investigate the effect of puff pastry margarine with reduced content of trans isomers in production of puff pastry with enhanced nutritional value. Experiments were carried out on the basis of 3 2 factorial design, wherein the independent variables were the amount of puff pastry margarines (30, 40 and 50%, on flour weight) and number of margarine layers formed during the dough processing (108, 144, and 256). In order to determine the optimum values of independent parameters, the study was focused on defining of relevant qualitative indicators of the final product. By investigation of influence of the type of puff pastry margarine (ML1 and ML2) on the quality of puff pastry, it was determined that physico-chemical properties of margarine ML1 were not optimal for puff pastry production. Margarine ML1 had lower hardness by 50-60%, lower SFC by 20-35% and worse thermal characteristics compared to margarine ML2. Only by application of the maximum amount of margarine ML1 and 144 margarine layers a satisfactory quality of puff pastry was obtained: the lift of 2.89, hardness of 17.7 kgs, volume 83.6 cm 3 and the total number of points of 14.8. Because of its better technological characteristics, margarine ML2 is favorable for making puff pastry. Significantly better physical properties and excellent pastry quality was obtained in samples with margarine ML2 in an amount of 50% of margarine and 256 layers: higher lift by 45%, volume by 25% and the total number of points by about 20% compared to sample ML1 with the best quality.
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