Mycoremediation of vinasse by surface response methodology and preliminary studies in air-lift bioreactors.
Mycoremediation of vinasse by surface response methodology and preliminary studies in air-lift bioreactors. Chemosphere. 2020 Apr;244:125432 Authors: Aragão MS, Menezes DB, Ramos LC, Oliveira HS, Bharagava RN, Romanholo Ferreira LF, Teixeira JA, Ruzene DS, Silva DP Abstract This work evaluated the degradation of sugarcane vinasse with the production of biomass by Pleurotus sajor-caju CCB020, considering the combination of temperature and pH effects, using surface response methodology (RSM). A 22 complete central factorial composite experiment was used to analyze the results. The optimum temperature and pH values were respectively 27 °C and 5.6 for maximum decolorization yield and 20 °C and 6.8 for maximum biomass production. In parallel, scale-up experiments under conditions of 30 °C and initial pH 5.0 were evaluated in two different air-lift bioreactors of 7.0 L. Under these conditions, reductions of 53% and 58% in chemical oxygen demand (COD) and 71% and 58% in biological oxygen demand (BOD) were obtained respectively with the concentric tube type air-lift bioreactor with an increased degassing zone and without an increased degassing zone. Under these conditions, this study concluded that the systematic combination of P. sajor-caju and vinasse can be applied in the biodegradation process of refractory compounds contained in vinasse, concomitant to obtaining biomass and laccase and manganese peroxidase enzymes. Due...
Authors: Khurram A, Abedi D, Abedi M PMID: 32497473 [PubMed - as supplied by publisher]
CONCLUSION: Use of VR facility tours as an alternative to in-person tours of affiliate training facilities during a residency interview day is a viable and innovative option that can save time and money and favorably impact the applicant's impression of the program. More research is necessary to assess whether VR tours can replace in-person tours at the main teaching site, however, while social distancing measures are in place, VR tours may become necessary for programs moving forward. ABBREVIATIONS: Med-Peds: Internal Medicine-Pediatrics; VR: Virtual Reality; AAMC: Association of American Medical Colleges; IRB: Instit...
Authors: Edigin E, Eseaton PO, Shaka H, Ojemolon PE, Asemota IR, Akuna E PMID: 32493181 [PubMed - in process]
Authors: Roberts V, Malone K, Moore P, Russell-Webster T, Caulfield R Abstract Our personal views about the challenges of continuing to deliver peer teaching during a pandemic. We are a group of 4th year medical students who are part of a student society which has delivered structured, highly formulaic peer-led teaching sessions for the past three years. During the COVID-19 pandemic, the reduced access to our normal clinical teaching highlighted the importance of peer-led teaching sessions. We wanted to continue with our peer-taught sessions but knew we would have to devise a new format to make our teaching accessi...
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