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Copyright of Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas is the property of Universidad de Santiago de Chile and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Introduction. Mango (mangifera indica L.) is a climacteric fruit that after harvesting continues the process of respiration and ripening, which causes it to degrade. Objective. Identify the different postharvest technologies used in mango fruits, analyzing the quality of the fruit after their application, proposing the most appropriate mango post-harvest technologies for Colombia. Materials and methods. The methodological strategy was a technology watch based on secondary and tertiary sources, performing text mining analysis in Vantage Point software. Results. Sixty-one articles on postharvest technologies applied to mango fruits were identified worldwide, with Brazil being the country with the most research with 36 publications. The variety with the most studies was Tommy Atkins and the year with the most publications was 2010 with seven (7), followed by 2008, 2011, 2015 to 2017 with five (5) each. Conclusions. The most studied postharvest technologies were edible coatings based on essential oils, carnauba, cassava starch, use of ethephon; 1-MCP; controlled atmospheres; gamma radiation; refrigeration; ambient temperature; ambient temperature plus relative humidity (RH); packing in cartons; blanching; UV-C radiation; refrigeration plus edible coating and hydrothermal treatment. It is recommended for Colombia to apply technologies such as chitosan-based edible coatings and room temperature and relative humidity, given the benefits they provide in the preservation of mango fruit quality, shelf life and physicochemical parameters. [ABSTRACT FROM AUTHOR]

Copyright of Revista Foco (Interdisciplinary Studies Journal) is the property of Revista Foco and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Currently, the lubricating greases on the market are products based on mineral oil, which are finally discarded, generating great pollution in the environment; on the other hand, the vegetable oil used in cooking is almost always disposed of through a sink, a landfill or a sewer, without prior treatment, causing environmental problems as a consequence. The objective of this research was to obtain a lubricating bio-fat by reusing vegetable oil used in kitchens in frying processes. To carry out this research, sodium hydroxide was used to obtain the soap and recycled oil to carry out the saponification process and as a base oil to obtain the fat. In this investigation, eight different formulations were made, with variations in the amounts of NaOH and antifoam, finally a formulation was obtained, whose soap was formed by 40 ml of used oil plus 40 ml of sodium hydroxide and its base was 80%. of the same used oil, presented physicalchemical characteristics similar to commercial fats on the market. In conclusion, the obtained lubricating grease is a grade 2 grease, according to the National Institute of Lubricating Greases, it is a soft grease suitable for use in bearings, bearings and valves, which can be subjected to temperatures not exceeding 160 °C, where the presence of water is minimal, it can also be used in structures exposed to the air. [ABSTRACT FROM AUTHOR]

Our work raises the aspects that we consider to be central to the Encyclical, especially the unity between economy-society-ecology, taking as a central idea the notion of “ecological conversion” and, from this, the limits of growth of a civilization fundamentally based on oil. This is because consumption levels will quickly meet the barrier of nature itself, since humanity will have consumed most of the fossil fuels by the end of the 21st century. It is, in short, the exhaustion of an ideal of science and progress that has failed to keep the promises of the enlightened model in which it was born. In this context, we present the ecological catastrophes caused by oil spills in the last decade and the positive and negative aspects of the latest oil extraction procedures; Despite these efforts and the integration of renewable energies, ecology in a Christian key requires an interior renewal that leads to a fuller awareness of man as a collaborator and custodian of creation. [ABSTRACT FROM AUTHOR]

Lubricating greases are vital elements for proper operation and for extending the life of engines. At present, most of the lubricating greases on the market use mineral oil as base oil, which means that the disposal of these greases, after use, pollutes the environment, in addition to increasing prices, due to the increase in the prices of oil and its derivatives in the market generate a higher cost in the acquisition of these. The objective of this work was to obtain a lubricating biogrease for engines, from by-products of African palm oil. For this, was used sodium hydroxide to obtain sodium soaps and, as base oil, as by-products from palm were used: crude oil, Stearin or Olein; In addition, mineral oil was used as a control. Different formulations were obtained using combinations of the oils, both in obtaining soaps and in obtaining bio-greases. As conclusions, it can be stated that a lubricating bio-grease was obtained with a composition of 93% crude palm oil, 6% sodium hydroxide and 1% defoamer, which presented physicochemical characteristics similar to commercial lubricating greases. In addition, according to the classification of the National Institute of Lubricating Greases, it could be classified as grade 2 lubricating bio-grease, that is a soft grease suitable for use in bearings, and valves, which are not subjected to high pressures or loads. [ABSTRACT FROM AUTHOR]

The purpose of this paper is to analyze the role of the State in Argentina in the last three decades, based on oil policies, in order to understand its different transformations. The 90s were characterized by an abrupt referential change in the role of the state but especially in the productive and regulatory capacity on hydrocarbons. Despite of the neoliberal paradigm crisis on the beginning of the new millennium, energy policies on hydrocarbons still maintained the previous referential sector strategies. From the analysis of documentary sources and quantitative data, this paper aims to demonstrate how oil policy remains managed by market forces despite the fact that 51 % of Yacimientos Petrolíferos Fiscales (YPF) shares were purchased by the State. [ABSTRACT FROM AUTHOR]