Abstract Modern food systems are entering a fundamentally new stage of technological development, which is based, first all, on the introduction innovative technologies that make increased demands energy supply agricultural enterprises. These requirements based ensuring reliable, efficient and optimal to facilities. The article discusses influence weight coefficients in criterion quality contro...

In this work, oil mill wastewater (OMW), a residue generated during olive oil extraction, was evaluated as an inducer of rhamnolipid production. Using a medium containing as sole ingredients corn steep liquor (10%, v/v), sugarcane molasses (10%, w/v) and OMW (25%, v/v), Pseudomonas aeruginosa #112 produced 4.5 and 5.1g of rhamnolipid per liter in flasks and reactor, respectively, with critical ...

This work is focused on the study of different microorganisms to obtain a high level of lipase. It was selected 6 different microorganisms: Geotrichum candidum NRRLY-552, Geotrichum sp., Fusarium oxysporum and three wild yeasts from Brazil rainforest. Fermentation carried out using agro industrial by-products like corn steep liquor and protein hydrolysed in shaken flasks under different conditi...

Pullulans produced from the Aureobasidium pullulans fermentation of various agro-industrial wastes were characterised in terms of carbohydrate analysis. heterogeneity and molecular weights. Grape skin pulp extract (GSPE), starch waste (SW), olive oil waste effluents (OW) and molasses (M) were used as substrates for the production of pullulan. A glucose based defined medium (D) was used for comp...

With the current demand for Brazilian sugarcane, the importance to investors of a faster implementation of agro-industrial complexes has been increasing. Estimates suggest that a 4-year implementation may enhance financial value creation by 10% when compared to the usual 6-year implementation. Given a desired production and a target implementation horizon, the quadratic programming model presen...

In nature, fructans are synthesized from sucrose by various microbial and plant species. Depending on the source, fructans can contain from two to more than a hundred thousand fructose units linked by β-(2→1) (inulin-type) or β(2→6) (levan-type) glycosidic bonds. Bacteria produce levan or inulin polymers via a one-enzyme process aimed to confer competitiveness in the interaction with the host p...

BACKGROUND The plant biomass and agro-industrial wastes show great potential for their use as attractive low cost substrates in biotechnological processes. Wheat straw and corn cob as hemicellulosic substrates were acid hydrolyzed and enzymatically saccharified for high xylose production. The hydrolysate was concentrated and fermented by using Saccharomyces cerevisiae and Kluyveromyces for prod...

Agriculture differs from other sectors of the economy by presence various forms ownership, as well discrepancy between calendar year and production year. Therefore, for organizations specializing in processing products agriculture, it is very difficult to choose programs automating cost, operational tax accounting. But, at present stage, automation necessary maintain competitiveness enterprise....

This paper describes the process of privatization of China’s Township Enterprises. Findings from a recent field survey by the authors show how far privatization has proceeded and how it has affected firm performance. The pervasiveness and impact of privatization are readily apparent. The privatization in the mid-1990s was deep and fundamental. More than 50% of local government-owned firms have ...