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Qualidade microbiológica, físico-química, instrumental e sensorial de marcas de açúcares mascavo
(Universidade Federal de São Carlos, 2017-04-19) Silva, Rodrigo França da; Verruma-Bernardi, Marta Regina; https://lattes.cnpq.br/3470912236544684; https://lattes.cnpq.br/6811323057959894
The present work aimed to evaluate the microbiological, physical-chemical, instrumental and sensory quality of brown sugar brands in order to produce data on the identity of this product. We analyzed 15 brands, obtained in supermarkets and stores of integral products of the region of Araras - SP. For microbiological analysis, the aim was to analyze the mesophilic bacteria, molds and yeasts, as well as Salmonella and total coliforms. It was also evaluated aspects of moisture and water activity, as well as polarization, ashes, reducing sugars, total reducing sugars and pH. We also sought to evaluate the preference and difference terms of the brands, using the sensorial analysis. Four of the brands studied were above international standards for mesophilic bacteria. All brands show compliance how much total coliforms and Salmonella evaluated. The analyzes of moisture and water activity ranged from 0.74 to 4.36%, and from 0.55 to 0.72, respectively. In terms of polarization the marks varied from 84.00 to 96.50 ° S, for ash the variation was between 0.33 and 2.65%, in relation to the reducing sugars the values were between 4.90 and 6.00 and From 5.50 to 8.40 for pH. For total reducing sugars, a change from 75.38 to 92.30% was observed. After analysis, the results indicated that the brands differed in the majority of the sensorial attributes studied, as well as a greater tendency in preference for the brand that presented characteristics aimed at a lighter coloration, less moist appearance and a more granular texture. Studies with these characteristics present themselves in a relevant way, as it characterizes the product in the search for real standardization, bringing information to both consumers and producers, thus moving towards product identity.
Invariantes de germes de aplicações
(Universidade Federal de São Carlos, 2017-04-19) Ament, Daiane Alice Henrique; Nuño Ballesteros, Juan José; Tomazella, João Nivaldo; https://lattes.cnpq.br/0051564735964760; https://lattes.cnpq.br/0444070739009629
In this work, we show relations between invariants of map germs. First, we consider an analytic function germ f : (X, 0) —(C, 0) on an isolated determinantal singularity and we present a relation between the Euler obstruction of f and the determinantal Milnor number of f. In the particular case where (X, 0) is an isolated complete intersection singularity, we obtain a simple way to calculate the Euler obstruction of f as the difference between the dimension of two algebras. After, we work with map germs f : (X, 0) —— (C2, 0), where (X, 0) is a plane curve with isolated singularity. We introduce the image Milnor number to these map germs and we present a positive answer to the Mond’s conjecture in this context. The Mond’s conjecture proposes an inequality between two other invariants, the A^-codimension and the image Milnor number, in the case of map germs f : (Cn, 0) —(Cn+1, 0) when the dimensions (n,n + 1) is in Mather’s nice dimensions. The conjecture is true for n = 1, 2, and for the cases n > 3 is an open problem.