Antimutagenic and Antiproliferative Activity of the Coccoloba uvifera L. Extract Loaded in Nanofibers of Gelatin/Agave Fructans Elaborated by Electrospinning.

BACKGROUND: The Coccoloba uvifera L. species is currently considered an important source of compounds of high biological value such as lupeol. This is related to different and important biological activities to human health. OBJECTIVE: The objective of this study was to encapsulate the C. uvifera extract in nanofibers made with the biopolymers gelatin (G)/high-grade polymerization agave fructans (HDPAF) in the proportions 1:0, 1:1, 1:2, 1:3 and 0:1, through the electrospinning process, in addition to evaluating the antimutagenic and antiproliferative properties of the encapsulated extract. METHODS: The physicochemical characteristics of the nanofibers were evaluated, as well as the antiproliferative and antimutagenic activities of the encapsulated and unencapsulated extract. SEM evaluation shows nanofibers of smooth, continuous morphology and nanometric size (50-250 nm). The TGA, FTIR-ATR, HPLC-MS analyses reveal the presence of the extract in the nanofibers. RESULTS: The extract did not show a mutagenic effect during the development of the Ames test, on the other hand, the MTT test showed the antiproliferative effect at the concentrations of 50 and 100 µg/mL of extract. CONCLUSION: The extract of C. uvifera loaded in nanofibers elaborated by electrospinning with the G/HDPAF biopolymers conserves its antimutagenic and antiproliferative properties.

Effectiveness of essential oil extracted from pompia leaves against Penicillium digitatum.

BACKGROUND: In recent years, interest in the use of natural compounds as possible substitutes for chemicals, to prevent microbial food spoilage has grown. The antimicrobial activity of the essential oils (EOs) is well known and nowadays there is renewed interest in their application as natural preservatives in postharvest management. The aims of this study were to characterize the EO extracted from pompia leaves and to evaluate its effectiveness for the control of the postharvest decay agent Penicillium digitatum, when applied as vapor contact in new airtight boxes, supplied with a heating system. RESULTS: Fumigation was performed in vitro and on food using two concentrations of the EO, heated at controlled temperature. The headspace analysis revealed that the heating of the EO favored the evaporation of the volatile compounds, without altering their functionality. The treatments reduced the pathogen growth in vitro and rot on inoculated food by about 50%. CONCLUSION: The chemical analysis of the vapor composition demonstrated that heating the oil did not alter the components and thus the antimicrobial effect of the oil. The treatment by vapor contact with the EO was effective in controlling the pathogen growth in vitro but, above all, it was successful in halving rot in vivo. Due to their bioactivity in the vapor phase, EOs could be delivered as fumigants during postharvest protection; however, the techniques commonly employed are not ideal for simulating real pre-treatment conditions. The new device allows real large-scale conditions to be reproduced. © 2020 Society of Chemical Industry.

Dragon's Blood Sap: Storage Stability and Antioxidant Activity.

Currently, consumers are demanding additive-free, fresher, and more-natural products. Dragon's Blood Sap (DBS), the deep red latex of the specie of tree Croton lechleri (Müll. Arg.), contains a high concentration of phenolic compounds of great interest for the food, pharmaceutical, and cosmetic industries. These chemical compounds are highly susceptible to degradation. Therefore, DBS storage stability and its photo-oxidation was studied by Fourier transform infrared spectroscopy (FT-IR) and UV-Vis spectrophotometry for 39 days at different temperatures (4⁻21 °C) and relative humidities (0⁻56%), as well as under UV light exposure. It was observed that the degradation of phenolic compounds was reduced at 0% relative humidity (RH), not showing a significant effect of temperature in the range studied. UV light irradiation degraded DBS in a 20%. DBS has an exceptional high and stable antioxidant content (≥93% inhibition percentage of DPPH), which makes it a unique property to consider the DBS as an antioxidant agent or ingredient for consumer products formulations.

An estimation of the value of informal care provided to dependent people in Spain.

BACKGROUND AND OBJECTIVE: The aim of this paper was to arrive at an approximation of the value of non-professional (informal) care provided to disabled people living within a household in Spain. METHODS: We used the Survey on Disabilities, Autonomy and Dependency carried out in 2008 to obtain information about disabled individuals and their informal caregivers. We computed the total number of informal caregiving hours provided by main caregivers in Spain in 2008. The monetary value of informal care time was obtained using three different approaches: the proxy good method, the opportunity cost method and the contingent valuation method. RESULTS: Total hours of informal care provided in 2008 were estimated at 4193 million and the monetary value ranged from EUR23,064 to EUR50,158 million depending on the method used. The value of informal care was estimated at figures equivalent to 1.73-4.90 % of the gross domestic product for that year. CONCLUSION: Informal care represents a very high social cost regardless of the estimation method considered. A holistic approach to care of dependent people should take into account the role and needs of informal caregivers, promote their social recognition and lead to policies that enhance efficient use of formal and informal resources.

[Interaction between the social and the health systems. SESPAS Report 2012]. / La interacción del sistema social y el sanitario. Informe SESPAS 2012.

Act 39/2006, of 14th December, for the Promotion of Personal Autonomy and the Care of Dependent Individuals establishes the basic conditions for the promotion of personal autonomy and the care of the dependent through the creation of the System of Autonomy and Care of Dependent Individuals and constitutes an excellent opportunity to make progress in the development of a health care space. The aim of healthcare integration is to move from a fragmented framework, in which individuals apply for and receive health benefits and care benefits separately, to a new model of shared responsibility. Since the 1980s, several national and regional projects of healthcare cooperation have been developed. However, although substantial efforts have been made in some autonomous regions of Spain, healthcare coordination seems to predominate over integration in the health setting.