Nitrogen forms in nodes and internodes of three sugar cane cultivars

• Grant number: 10/00377-9
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2010
• End date: October 31, 2012
• Field of knowledge: Agronomical Sciences - Food Science and Technology - Food Technology
• Principal Investigator: Marcos Omir Marques
• Grantee: Marcos Omir Marques
• Host Institution: Faculdade de Ciências Agrárias e Veterinárias (FCAV). Universidade Estadual Paulista (UNESP). Campus de Jaboticabal. Jaboticabal , SP, Brazil
• Associated researchers: Luiz Carlos Tasso Junior ; Tadeu Alcides Marques

Abstract

Brazil is the largest producer of cane sugar in the world and its technological advances must often be studied, because there are still obstacles to be overcome. The performance of all component parts of the chain of sugar and ethanol industry is what will define the overall efficiency of the process. There are several factors that influence the efficiency of the industrial stage, may be noted the composition of raw material, especially with regard to the various ways in which the nitrogen is present in the juice. In the process of industrialization, the nitrogen fraction of the proteins and amino acids represent problems when it comes to the manufacture of sugar, especially the steps involved in juice clarification. On the other hand, forms ammonia, mono, di and tri-peptides are beneficial in that it can be assimilated by the yeast alcohol in the process of making ethanol. Another important issue concerns the possibility of occurrence for different levels, different forms of nitrogen in different parts of the plant. Thus, this research project aims to quantify the different forms of nitrogen in nodes and internodes of three varieties of cane sugar for a period of six months during the season, in an attempt to verify that this is a variable intrinsic grow and if possible, from the information obtained to define the ability of the cultivar on the production of sugar or ethanol. (AU)