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Institution

Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto

Education
About: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto is a based out in . It is known for research contribution in the topics: Population & Genus. The organization has 2143 authors who have published 3674 publications receiving 71071 citations. The organization is also known as: FFCLRP & FFCLRP-USP.


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Journal ArticleDOI
TL;DR: New insights are brought into green biotechnology regarding vinasse utilization, which is frequently discharged in soils, rivers, and lakes causing adverse effects on agricultural soils and biota, as well as the cotton gin waste recovery.
Abstract: Laccases are very interesting biocatalysts of recognized importance for several industrial applications. Its production by Trametes versicolor, a white-rot fungus, was induced by a combination of cotton gin wastes (1%), a lignocellulosic waste, and vinasse (15%), an industrial by-product from sugarcane industry. The use of these agro-industrial wastes are interesting, since it helps in reducing the enzyme production costs, due to their low cost and wide availability, as well as the environmental contamination issues, due to their improper disposal. Thus, laccase production was studied in submerged fermentation of T. versicolor using these agro-industrial wastes (cotton gin waste and vinasse) as carbon source and an additional nitrogen source (0.1% peptone). Three different bioreactors were evaluated for laccase production, such as BioFlo 310 bioreactor, aluminium tray and Erlenmeyer flasks to achieve high levels of laccase production. The highest specific production of laccase was found in BioFlo 310 bioreactor with 12 days of fermentation (55.24 U/mg prot.), which has been shown to be closely related to the oxygen supply to the microorganism through aeration of the fermentation medium. This study brings new insights into green biotechnology regarding vinasse utilization, which is frequently discharged in soils, rivers, and lakes causing adverse effects on agricultural soils and biota, as well as the cotton gin waste recovery.

36 citations

Journal ArticleDOI
15 Dec 2010-Talanta
TL;DR: The information obtained from the LIBS spectra profiles with chemometrics analysis was promising for the construction of predictive models to identify healthy and infected plants and these models were effective in the classification of 82-97% of the diseased samples.

36 citations

Journal ArticleDOI
TL;DR: Data show that U. rapax chronically contaminated in situ exhibits compensatory biochemical and physiological adjustments, and reveal the importance of studies on organisms exposed to metals in situ, particularly estuarine invertebrates subject to frequent changes in natural environmental parameters like salinity and temperature.
Abstract: The contamination of estuaries by metals can impose additional stresses on estuarine species, which may exhibit a limited capability to adjust their regulatory processes and maintain physiological homeostasis. The mudflat fiddler crab Uca rapax is a typical estuarine crab, abundant in both pristine and contaminated areas along the Atlantic coast of Brazil. This study evaluates osmotic and ionic regulatory ability and gill Na(+)/K(+)-ATPase activity in different salinities ( Rio Itapanhau, Bertioga>Picinguaba, Ubatuba [pristine reference site]). Our findings show that the contamination of U. rapax by metals in situ leads to bioaccumulation and induces biochemical and physiological changes compared to crabs from the pristine locality. U. rapax from the contaminated sites exhibit stronger hyper- and hypo-osmotic regulatory abilities and show greater gill Na(+)/K(+)-ATPase activities than crabs from the pristine site, revealing that the underlying biochemical machinery can maintain systemic physiological processes functioning well. However, oxygen consumption, particularly at elevated temperatures, decreases in crabs showing high bioaccumulation titers but increases in crabs with low/moderate bioaccumulation levels. These data show that U. rapax chronically contaminated in situ exhibits compensatory biochemical and physiological adjustments, and reveal the importance of studies on organisms exposed to metals in situ, particularly estuarine invertebrates subject to frequent changes in natural environmental parameters like salinity and temperature.

36 citations

Journal ArticleDOI
TL;DR: In this study, queen-worker differences progressively increase during colony development in Protopolybia exigua and Chartergus globiventris and in Apoica flavissima, morphological caste differences are clearly pre-imaginally determined and have no variation in different phases of the colony cycle.
Abstract: In neotropical swarm-founding wasps, caste differences can be arranged along a spectrum ranging from taxa in which queens and workers are externally similar, to others with fairly distinct caste attributes. In this study, queen-worker differences progressively increase during colony development in Protopolybia exigua and Chartergus globiventris. In Apoica flavissima, morphological caste differences are clearly pre-imaginally determined and have no variation in different phases of the colony cycle. Non-inseminated layers are abundant in P. exigua during the whole colony cycle, restricted to some phases in C. globiventris, and completely absent in A. flavissima. Based on these reported traits plus data from the literature, social regulation in epiponine castes can be morphologically and reproductively fixed, morphologically fixed but reproductively inducible depending the colony cycle, reproductively inducible throughout colony cycle, or reproductively inducible throughout colony cycle only in some periods.

36 citations

Journal ArticleDOI
TL;DR: The catalysis results revealed a biomimetic pattern of cytochrome P450-type enzymes, thus confirming that the prepared materials are can effectively mimic the activity of such groups.

36 citations


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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
20233
202291
2021245
2020248
2019234
2018245