\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[portuguese]{babel} % or "brazilian"
\newcommand\namegroup1{%
\begin{minipage}[t]{0.4\textwidth}
\vspace*{1.5cm} % leave some space above the horizontal line
\hrule
\vspace{1mm} % just a bit more whitespace below the line
\centering
\begin{tabular}[t]{c}
#1
\end{tabular}
\end{minipage}}
\begin{document}
APROVADO: 5 de Dezembro de 2017.
\begin{center}
\namegroup{Prof.$^a$ Daniele Cristiane Menezes\\(UFV)}
\hspace{1.5cm}
\namegroup{Prof.$^a$ Rita de Cássia Superbi de Sousa\\(UFV)}
\namegroup{Prof. Emilio Borges\\(Orientador)\\(UFV)}
\hspace{1.5cm}
\namegroup{Prof.$^a$ Rejane de Castro Santana\\ (Presidente da banca e coordenadora da disciplina) \\(UFV)}
\end{center}
Best Answer
I suggest setting up a macro that outputs a fixed-width
minipage
environment, consisting of a horizontal line and the name, role, and affiliation of one person.