No abstract

Persimmon (Diospyros kaki Thunb.) fruits are a remarkable source of carotenoids, which have shown protective effects against UV radiation in bacteria, fungi, algae, and plants. The aim of this study was to analyze the photoprotection provided by an acetone extract, rich in carotenoids and obtained from byproducts derived from the persimmon juice industry, against UV-induced cell death in the keratinocyte HaCaT cell line. For this purpose, the cytotoxicity and phototoxicity of carotenoid extract, as well as its intracellular reactive oxygen species (ROS) scavenging and anti-adhesive activities towards HaCaT cells, were evaluated. The in vitro permeation test provided information about the permeability of the carotenoid extract. Persimmon extracts, rich in carotenoids (PEC), were absorbed by HaCaT keratinocyte cells, which reduced the UV-induced intracellular ROS production in treated cells. Thus, PEC exerted a photoprotective and regenerative effect on UV-irradiated HaCaT cells, and this protection was UV dose-dependent. No cytotoxic effect was observed in HaCaT cultures at the concentration tested. PEC treatment also stimulated the adhesion capacity of skin microbiome to HaCaT cells, while exhibiting a significant anti-adhesive activity against all tested pathogens. In conclusion, PEC showed potential for use as a functional ingredient in skin-care products.

Introduction: recently, there has been a trend towards healthy lifestyles and eating habits; therefore, there is an increase in products oriented for this purpose. Among these products we can find foods for vegans/vegetarians, "natural" foods, those that emphasize the absence of additives or "allergenic" type ingredients. These packaged products usually have legends and/or logos that characterize them. The objective was to carry out a survey of logos, seals and phrases in labels of commercial foods and analyze the information found according to current legislation in Argentina. Materials and Methods: 151 commercial foods were randomly surveyed in supermarkets, dietetics and company websites (August-October 2022). The surveyed products were: farinaceous (FP), vegetable drinks (VD), meat analogues (MA). , cheese analogues (CA) and others. The attributes sought were vegan/vegetarian (VV), natural/artisanal (NA), absence of additives (AA), absence of lactose (ALA), absence of allergens (AAE). Results: the VV attribute was observed in 68% of surveyed products and prevailed in MA, FP and VD. The NA attribute was observed in 23% of the foods, mainly in MA and PF. For AA, which was present in 75% of the food products analyzed, the FPs stood out. In the case of ALA and AAE attributes, they appeared in 17% of the foods. VD was the category that presented the ALA attribute in the highest percentage. A high prevalence of AA and ALA was observed in them. In the MA, the attribute that stood out was VV (92%). Within FP, the highest prevalence was of the AA attribute (96%), followed by VV (57%). In the CA group, the VV attribute prevailed (89%). Conclusions: a large presence of attributes was observed in the labels, which mostly lack current national regulations that endorse them. This contrasts with the demands of the current market and with demanding consumers. Keywords: packaged foods, logos and legends, food labeling, food legislation.