| 摘要 |
<p>The present invention describes the method for manufacturing biodegradable films using, as raw material, the proteins obtained from the residual paste generated by the process for extracting Jatropha curcas oil with the purpose of producing biofuel. This paste has high contents of proteins, about 60%, which may be used after extracted for feeding animals or humans (Akintayo, 2004; Francis y col., 2005). In addition, the biological quality of the J. curcas protein is very similar to that of beans or lentils and higher than that of maize (Castill y col., 1991; Makkar) so that this invention is focused on Mexican varieties having a low content of phorbol esters, which turn the proteins into edible proteins. The method used for the manufacture of these films includes a process of continuous dispersion or casting, these films presenting different tolerance to displacement-tension, a quick capacity of degradation. The films of this type, which are manufactured from natural products, are of scientific and commercial interest, since these materials besides being biodegradable are excellent candidates for the development of a wide range of applications in different areas, such as: medicine, food and agriculture. In such a manner, this invention presents low production costs since the main raw material is a byproduct, thus being related to the current trends of the integral use of the raw material by using the generated byproducts for the benefit of the environment.</p> |
