Fernanda de Paiva Badiz Furlaneto

Análise energética de sistemas de produção de etanol de mandioca (Manihot esculenta Crantz)

This work aimed to analyze the energetic consumption of the etanol production system, using the cassava as carbohidrates source. The researches were carried out from the field in the mid region of Paranapanema river, Sao Paulo state, during the period January to December, 2007. The energy consumption referring to the phases of crop production and industrial processing were appraised. It was verified that the total energetic cost of the crop production corresponded to 9,528.33 MJ ha-1, and the most onerous item was the inputs (35.72%). In the industrial step, the energetic consumption was equivalent to 2,208.28 MJ t-1. The operations of hydrolysis/saccharification/ treatment of the juice represented 56.72% of the total energetic expenditure. The cassava crop presented an energetic cost of 1.54 MJ L-1 in relation to the etanol produced in the main agronomic operations crop production, and 11.76 MJ L-1 in the industrial processing. The energy efficiency observed in the cultivation and industrialization of the cassava was of 1.76.

Custo de produção do maracujá-amarelo (Passiflora edulis)

The objective of this work was analyze the economic culture of yellow passion fruit (Passiflora edulis) in Marilia-SP, the 2010/2011 crop year. Structures of effective operational cost and total operational cost of the culture per area unit were used to the phase of implementation and management of the crop per unit area and five indicators of profitability. Identified a total production cost of US

Estudo energético da produção de biocombustível a partir do milho

23,743.19 per hectare or US

Avaliação energética da produção de etanol utilizando como matéria-prima a cana-de-açúcar

1.19 per pound of fruit. The items of cost effective operating system that most burdened production corresponded to the operations of machinery (31.1%) and labor (23.5%). The profitability indicators proved to be unfavorable to the production system considered in due mainly to the high price of inputs and practices to control diseases. There is need for technical adjustments related to the handling of the crop plant to reduce the total cost of production in order to make the activity profitable.