Session: General Poster:

The global technological development is linked to the needs of society and, given the exponential population increase, one factor becomes essential: supplying food demand. Designing materials with effective properties that aid agricultural development have gained prominence in the last decades mainly inputs for the quantified and prolonged release of nutrients used in the different cultures of Brazil. In view of this demand, films consisted of natural polymers, such as cellulose (CNF) and structural matrices of marine algae such as carrageenan (Kc) and alginate (Alg), are attractive due to the environmentally favorable properties such as biodegradability and be possible vehicles for the release of nutrients in a programmed way. Our hypothesis is that casting films can be an interesting vehicle to sustain the nutrients and prolonged their release. Accordingly, we evaluated the mechanical (Figure 1) and morphological properties (Figure 2) of the films. The higher CNF concentrations on the Kc/Alg blend of 4:6 reduced the cracks besides improving the tensile strength. In this way, the study of new materials with high added value from sustainable, renewable, and abundant sources is strategic not only from a technological/economic point of view but also environmental, due to the reduction of damage caused by the excessive use of fertilizers in Brazilian crops

Miss Gabriella Ulrich

Mester, University of S&atilde;o Paulo

Appearances

Mester, University of São Paulo