Escola Politécnica da USP

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Início News

Poli creates edible, biodegradable and antimicrobial packaging

Besides its economic advantages, the film may
reduce the amount of waste generated by conventional packaging.

An edible, biodegradable plastic film with antimicrobial properties, developed at Escola Politécnica of the University of São Paulo (Poli-USP), may be a new alternative for manufacturing food packaging. The new product, a natural polymer made from manioc starch and sugars, results from the chemical engineer Cynthia Ditchfield’s post-doctorate project, at the Food Engineering Laboratory of the Chemical Engineering Department at Poli.


Poli research reduces pesticide use in orange groves by up to 20%

Geostatistical techniques allowed decreasing Citrovita operational costs.

Researchers at Escola Politécnica of the University of São Paulo (Poli-USP) managed to reduce the use of pesticides in orange groves by up to 20%, by applying geostatistical techniques, usually employed in geology and mining. The work was developed in a pilot area of the orange groves of Citrovita Agropecuária, a Votorantim Group company, by the MSc candidate Miriam Okumura, advised by mining engineer Giorgio De Tomi, a professor at the Laboratory of Mine Planning and Optimization (Lapol), of the Poli Mining and Petroleum Engineering Department. The technique can be replicated in other types of crops.


Poli/USP researches air-conditioning systems that save up to 34% of power

One system has cool water serpentine belts installed on the ceiling, which irradiate coolness to the ambient; the other counts on a cool air chamber under the floor.

Imagine an air-conditioning system which provides full thermal comfort, which is silent, economic, easy to clean and to maintain. Also, it should not be a hindrance when changing the office layout: independently of the partitions or furniture positioning, the air outlets do not disturb the decoration. This system exists and is installed in two ambients at Escola Politécnica of the University of São Paulo (Poli/USP).


Poli/USP creates bone-made porcelain from Brazilian feedstock

Made from bovine bone ashes, the porcelain has the potential to be used for bone and tooth bioimplants.

A type of porcelain with fully Brazilian feedstock was developed by researcher Ricardo Miyahara from the Metallurgical and Materials Engineering Department of Escola Politécnica of the University of São Paulo (Poli/USP). By using bovine bone ashes, kaolin (a kind of clay) and feldspar (igneous rock), the researcher attained a type of porcelain with greater whiteness, lightness, resistance and properties comparable to those of the English material, which employs Cornish stone, among other feedstock.


Carton orange juice just as fresh fruit juice

Process developed by Escola Politécnica/USP is an alternative investment for producers and cooperatives.

Pasteurized orange juice with practically the same flavor, smell and appearance as fresh juice. This is what Escola Politécnica of the University of São Paulo (Poli/USP) managed to obtain as from a research which improved the HTST (High Temperature Short Time) pasteurization process – the method mostly employed by the Brazilian juice industry. The innovation meets a world consumption trend, characterized by the increase in the search for ready-made, healthier and more natural and long-lived products.


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