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Universidade de São Paulo (USP). Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP) (Institutional affiliation for the last research proposal) Birthplace: Brazil
Valeria Reginatto Spiller in research grants and scholarships supported by FAPESP.
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The joint research proposal focuses on a sustainable, bio-based production of the important commodity chemical 1,3-propanediol (PDO) by anaerobic bacteria of the genus Clostridium. PDO can be manufactured by chemical synthesis or fermentation. Currently, ~150000 t of PDO are produced per year, which is expected to increase to ~225000 t per year by 2022. The joint research proposal is base…
bioeconomy is a special issue worldwide-it comprises the use of renewable biological resources from land and sea to produce bioproducts, such as food, fuels, materials, and energy. Bioproducts and energy generation become even more economically interesting if the raw materials consist of industrial byproducts and/or waste. In this context, Laboratório de Biotecnologia Ambiental e Energias…
The development of technologies to obtain renewable and cleaner energy is a global issue. Hydrogen is a clean fuel-its burning generates water only. A biological process, such as fermentation of carbohydrates from renewable raw materials, produces biohydrogen. Recently, researchers have turned their attention to the use of algal biomasses bearing high concentration of polysaccharides as r…
This project aims at the production of hydrogen, a clean fuel alternative to fossil fuels and whose combustion produces mainly water. This gas will be produced by fermentation of carbohydrates. It is known that the biological production of hydrogen (biohydrogen) is competitive only if the sources of carbohydrates are inexpensive, as in the case of agroindustrial wastes. Considering that t…
Microbial Fuel Cells (MFC) are bioelectrochemical systems that convert chemical energy into electrical energy through the microorganisms used as biocatalysts. These microorganisms, called electrogenic, grow at the MFC anode forming a biofilm and releasing electrons to an electrode and finally to the cathode. The potential difference between the anode and cathode results in electricity. Ps…
Increasing interest in economic practices based on the use of renewable and residual materials have made biotechnological processes some of the most attractive alternatives to add value to such raw materials. For example, biodiesel production from the recycling of oils and fats generates glycerol as a by-product, which in turn has been studied as a carbon source in several bioprocesses, i…
The strong reliance on fossil fuels, as well as its polluting power, have driven the search for alternative energy-generating sources and technologies. Simultaneously to this scenario, industrial economic activities generate by-products, waste and polluting effluents which, if not properly treated, pose a threat to the environment in general. Thus, great efforts have been devoted to the d…
The acetone-butanol-ethanol fermentation, also called ABE fermentation represents one of the oldest recognized industrial fermentation processes. The ABE fermentation, which occurs during the solventogenic phase of Clostridium growth, generates predominantly acetone, butanol, and ethanol in a ratio of 3:6:1. Nowadays the interest in ABE fermentation is increasing because of the search for…
Sustainable development is one of the pillars of bioeconomy, which aims to conserve natural resources and to reuse industrial waste. One of the bioprocesses in line with these objectives is the fermentation of glycerol, the main residue of biodiesel production, by bacteria of the genus Clostridium. Specifically, Clostridium beijerinckii Br21 can produce 1,3-propanediol from glycerol, but …
Several clostridium strains metabolize glycerol (C3) by two metabolic pathways: the reductive and the oxidative branches. In the reductive pathway, glycerol is dehydrated to 3-hydroxypropionaldehyde (3-HPA), which can be further reduced to 1,3-propanediol (1,3-PDO). The NADH cofactor of this reaction is generated by the oxidative glycerol pathway, thereby maintaining the intracellular red…
| 1 / 1 | Ongoing research grants |
| 3 / 3 | Completed research grants |
| 1 / 1 | Ongoing scholarships in Brazil |
| 3 / 3 | Completed scholarships in Brazil |
| 1 / 1 | Ongoing scholarships abroad |
| 1 / 1 | Completed scholarships abroad |
| 10 / 10 | All research grants and scholarships |
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