Quimica ambiental https://revistas.uncp.edu.pe/index.php/ambiental <p>Revista de Quimica Ambiental desarrollado para los investigadores del campo de Ing. Qca. Ambiental.</p> es-ES edgarrojas@uncp.edu.pe (Edgar) edgarrojas@uncp.edu.pe (Edgar) Tue, 21 Jun 2022 22:31:19 -0500 OJS http://blogs.law.harvard.edu/tech/rss 60 Microalgal biomass with high potential for the biofuels production https://revistas.uncp.edu.pe/index.php/ambiental/article/view/1306 <p>The study of biofuels continues in constant development, for five decades. This article summarizes the analysis of several recent scientific publications, related to third generation biofuels using microalgae. An overview of biofuels and their classification, the theoretical bases of microalgae, techniques for their cultivation, harvesting and pretreatment of their biomass are presented. Promising technologies for obtaining biofuels of great potential worldwide demand are also briefly described, considering the technical characteristics of the process, depending on the microalgae species that have the highest yields and productivity for each type of biofuel: Biodiesel (extraction of lipids, transesterification and purification), ethanol (hydrolysis of sugars, fermentation and purification) and biogas (anaerobic digestion). Most studies are focused on the production of lipids, being Chlorella vulgaris, Nanochloropsis sp. and Botryococcus braunii (A) the most used microalgae to obtain biodiesel. However, there are few studies focused on the production of microalgal biomass to produce bioethanol, thus, the microalgae Porphyridium cruentum and Spirogira sp. they could be used to produce bioethanol, with the advantage of not containing lignin. Biogas is produced by anaerobic biodigestion of microalgal biomass residues in biorefineries, but its commercial production is very limited due to high production costs and because there are other economically very competitive biomasses. The need to produce biofuels using microalgal biomass is reaching a greater boom, the transcendental proposal being the launching of a biorefinery, mainly focused on the optimal production of microalgal biomass as the main key to the entire process.</p> Salus GP, Manue Jimenez Escobedo Derechos de autor 2021 Quimica ambiental https://revistas.uncp.edu.pe/index.php/ambiental/article/view/1306 Tue, 21 Jun 2022 00:00:00 -0500 Synthesis, Bioapplications, and Toxicity Evaluation of Chitosan-Based Nanoparticles https://revistas.uncp.edu.pe/index.php/ambiental/article/view/1307 <p>engineering to improve the quality of life. Chitosan-based nanomaterials are on the forefront and attract wide interest due to their versatile physicochemical characteristics such as biodegradability, biocompatibility, and non-toxicity, which play a promising role in biological applications. Chitosan and its derivatives are employed in several applications including pharmaceuticals and biomedical engineering. This article presents a comprehensive overview of recent dvances in chitosan derivatives&nbsp; ve nanaparticulas and nanoparticle synthesis, as well as emerging applications in medicine, tissue engineering, drug delivery, gene therapy, and cancer therapy. In addition to the applications, we critically review themain concerns and mitigation strategies related to chitosan bactericidal properties, toxicity/safetyusing tissue cultures and animal models, and also their potential environmental impact. At the endnbof this review, we also provide some of future directions and conclusions that are important for expanding the field of biomedical applications of the chitosan nanoparticles.</p> Pamela Torres Flores Derechos de autor 2021 Quimica ambiental https://revistas.uncp.edu.pe/index.php/ambiental/article/view/1307 Tue, 21 Jun 2022 00:00:00 -0500