The present work was carried out in the UEB of Frank País García cereals from Santiago de Cuba, where wheat grain is milled and soybeans benefit. The environmental impacts that were produced through the Buroz Integrated Relevant Criteria methodology were identified and assessed. The assessment identified that the main environmental pollution problems of UEB are: inadequate...
A study of the quality of the toothbrush produced by the company Cepil is presented, which includes customer satisfaction as well as the characterization of the oppressed materials and final product. Satisfaction surveys are carried out with the population regarding the perception of product quality and customer complaints during the last six years. The main quality parameters of...
Agriculture faces three new challenges today, climate change, desertification and the loss of soil biodiversity, caused by poor cultural practices in agricultural systems and it is necessary these systems not only to provide food, as well energy to from all the waste.Maize is a product that is grown in almost all the world and during the process of harvest residues such as corn...
The culture temperature is proportional to the production of microalgae, reaching optimal values for each species. Above this optimal value, the respiration and photorespiration increases thus reducing productivity. In this work, the incidence of culture temperature in the biomass concentration of the mixed cultivation of Chlorella vulgaris has been evaluated in porcine...
ABSTRACTThe Pleurotus mushrooms, in addition to their demonstrated potential in human nutrition, shows important biotechnological applications: they are producers of molecules with pharmaceutical properties, they reduce the level of lignocellulosic residues in nature, contributing to the restoration of the planet's ecosystems, and to the biological elimination of contaminants...
Inappropriate materials and hazardous waste management has caused a serious problem of pollution of soils all around the world. In Cuba, the oil industry has had a negative impact on environmental issues. The aim on this work is the structural modification of bentonite extracted from a cuban clayfield, in order to obtain a material with adsorbent properties to be apply in oils...
The increase of the profits of the companies, as a result of a high level of quality of the products and a decrease of the costs, is an objective to reach by each one of them. Dairy productions use raw materials with a high unit cost, so minimizing these expenses is a guideline in the business economy to make their productions more competitive. The ice cream Alondra was designed...
The Cuban sugar industry opens possibilities for the development of a biorefinery by the characteristics of its currents and its facilities for obtaining different products, co-products and energy. The schemes proposed for the development of a biorefinery in a Cuban sugar industry consider obtaining second-generation alcohol (2G) with self-supply of energy from the plant (I...
The present research allowed to obtain functional nectar from the mixture of: aguaymato (Physalis peruviana), camu camu (Myrciaria dubia) y pitahaya (Selenicereus megalanthus s), by designing mixtures, enriched with the addition of soluble fiber. The results of mix design to determine the optimal ratio of these fruits dropped as a treatment of greater acceptance, treatment: 53.92...
The rhamnolipids are glycolipid biosurfactants produced by bacteria of the genus Pseudomona and represent an ecological alternative to their counterparts of petrochemical origin because they exhibit low toxicity, high surface activity and are stable under extreme conditions of pH, temperature and salinity.In this work the simulation of two technological proposals for rhamnolipids...
The Surface of water sources are resources for socioeconomic activities, however these cause alteration and deterioration, this impact is measured by the water quality index (IQA) and recently by emerging pollutants. The objective was to evaluate the level of caffeine and IQA, in the high Andean watershed of the Chumbao River, located between 73 ° 38 '- 73 ° 11'O and 13 ° 49...
At present, the application of magnetic systems is becoming more and more popular; in various spheres of the socio-economic sector. The objective of this work is to design and remodel a magnetic device, built in a structure with magnetic overlays, to permanent magnets; to evaluate the quality of fortified yogurt culture with iron gluconates. It is concluded that: there are...
In the practical lesson of enzymatic kinetic of the subject Fundamentals of Biotechnology for Chemistry Engineering, for E Plan, it analyzes the inhibitors influence in the reaction speed catalyzed by enzymes, the effect of chemistry and physical factors in the enzymatic activities and the kinetic parameters calculate graphically. In this academic activity the students must plot...
Thermal plasma gasification can be one of the most relevant and environmentally friendly technologies for the treatment of waste and has gained interest for its use in the biomass thermalconversion. In this perspective, the aim of this study is to evaluate the gasification of sugar cane bagasse by studying the effective areas of operation of this process and to establish a...
ABSTRACTIn recent years, as the society it develops and transformed with countless scientific- technical advances, the volumes of solid waste urban waste (MSW) have increased considerably. In most of the developing countries in Latin America and Caribbean, there is no public awareness for the management of this waste or practical, economic and viable solutions that do not affect...
ABSTRACTThe state of the art in the development of photocatalytic membrane reactors, for the treatment of persistent organic pollutants in water and wastewater, was identified through a documentary investigation. The review covered the following aspects: characteristics of the membranes used in the photocatalytic process, influence of the operational parameters in the...
The inevitable dependence on petrochemicals products has resulted in a serious environmental problem in recent decades and has greatly affected aquatic ecosystems. The objectives of this research were to characterize the seawater of the Mar Verde beach and carry out commercial diesel degradation experiments in this water, using a bacterial consortium. Dissolved oxygen, nitrate...
A method designed for the development of Cary-Blair's transport culture medium for industrial production and the evaluation of an intermediate product is presented. A procedure was developed to identify the factors that cause the potential incompatibility of the salts that compose it. The intermediate product was made and the physicochemical, organoleptic and microbiological...
In this work, a SCADA system is designed and implemented with the MOVICON 11.5 software, in which the operation of five seawater desalination lines by reverse osmosis which work in parallel, with four coastal wells and two end-of line pumps of the permeated water obtained are integrated, synchronized and supervised as a single plant. Each desalination line has its own control...
ABSTRACTCorrosion is the most frequent type of deterioration that affects metallic materials. It is a serious problem that occurs in petroleum industry repeatedly, due, among other causes, to the presence of water formation in oil and its derivatives, which is in contact with the equipment for processing, storage and transportation of crude oil. The study of this phenomenon is...
ABSTRACTThe objective of this work was to determine the best hydrolysis conditions of the Lactozym Pure 6500 L and Saphera 2600 L lactases for the production of goat milk without lactose. For the development of the work, the lactoses Lactozym Pure 6500 L of yeast origin (Kluyveromyces lactis) and Saphera 2600 L of bacterial origin (Bacillus licheniformes) were used. Goat milk...
A newly commissioned pulp moulding plant presents potential technical risks associated with the technology transfer process, which could limit the economic benefits and process efficiency indicators. The objective of the present work is to assess the production technology of moulded fibre by implementing a technology assessment model. The model includes the application of water...
ABSTRACTIn this paper a review of the state of the art of the parametric studies on the corncob gasification is presented: composition and gas caloric value, types of gasifiers and operation parameters such as: Equivalence ratio, specific gas production and cold yield of the gasifier. Experimental tests carried out by the authors are included in the thermodynamics laboratory of...