Navegando por Assunto "Alimentos - Contaminação"

Agora exibindo 1 - 10 de 10

Análise parasitológica de cultivares de uvas (Vitis spp.), comercializadas em diferentes locais na cidade de Serra Talhada, Pernambuco
(2024-03-07) Cavalcanti, Amanda de Brito; Lima, Marilene Maria de; http://lattes.cnpq.br/9135077184593725; http://lattes.cnpq.br/2411545060419950
Currently, there is an increase in the consumption of fresh foods due to the population's growing search for a healthier diet. However, the quality of these foods in terms of microbiological health is a concern, as they may represent a significant means of transmission of enteroparasites. The present study aimed to investigate the occurrence of parasites in grape samples, sold in different locations in the city of Serra Talhada. The collection period took place between July and December 2023, with the analysis of grape samples (Vitis spp.) carried out at the Plant Biotechnology Laboratory, at the Federal Rural University of Pernambuco. In total, 28 samples of grapes were analyzed from 14 commercial establishments, including greengrocers, street markets and supermarkets. Of the samples analyzed, parasitic structures such as insects, mite eggs and mites were found. Given the results obtained, it was concluded that parasitic structures are present in grapes sold in the city of Serra Talhada, however additional studies are necessary, expanding the sample size and using more than one diagnostic method.
Avaliação da cafeína no controle da infecção experimental de macrófago por Salmonella typhimurium
(2019) Almeida, Ingrydt de Alcântara; Lima Filho, José Vitor Moreira; Tavares, Lethicia Souza; http://lattes.cnpq.br/4128808335995892; http://lattes.cnpq.br/9476972124107533; http://lattes.cnpq.br/6015462685217823
Salmonellosis is an infectious disease transmitted mainly by foods contaminated with bacteria of the genus Salmonella, among them Salmonella enterica serotype Typhimurium, which can cause gastroenteritis until sepsis and septic shock in groups at risk. Organic compounds for pharmacological purposes are being increasingly tested. Among these compounds, caffeine (1,3,7-trimethylxanthine), one of the most used pharmacological and psychostimulant substances in the world. Severalstudies have demonstrated its role as a therapeutic adjunct, immunomodulator and adenosine receptor antagonist (ARs). In view of this, the objective was to evaluate the immunomodulatory potential of caffeine in peritoneal macrophages infected with Salmonella enterica Sor. Typhimurium. For this, in vitro tests were performed with cultures of macrophages exposed to caffeine concentrations to determine the degree of cytotoxicity of the compound; curative and preventive tests of cell viability, in order to evaluate cellular survival and quantification of intracellular bacteria, aiming to analyze the clearance of the pathogen from the intracellular medium. A direct antibacterial activity test was also carried out to evaluate the efficacy of caffeine in preventing the development of S. typhimurium. The results demonstrated that caffeine did not produce a toxic effect on the uninfected macrophages at the concentrations used, promoted a greater viability of the infected macrophages, but was not able to act as a direct bactericide. Caffeine contributed to the survival of macrophages infected with S. Typhimurium, having potential for the control of bacterial infections.
Avaliação de boas práticas de fabricação em casas de bolos no município da Região Metropolitana do Recife
(2019-12-13) Souza, Vitória Brenda do Nascimento; Padilha, Maria do Rosário de Fátima; http://lattes.cnpq.br/9689966677422344; http://lattes.cnpq.br/6822111679253379
Avaliação de milho (Zea mays) e feijão-caupi (Vigna unguiculata) em solo (neossolo litólico) contaminado com Al(III) através de análise morfológica e espectrofotométrica
(2019) Silva, Maria Caroline Pereira da; Lima, Marcelo Batista de; http://lattes.cnpq.br/2424699316257149; http://lattes.cnpq.br/2844991714013250
Aluminum in its ionic form, Al (III), presents itself as a problem for the development of plant cultures and has been pointed as a potential factor for the emergence of neurodegenerative and bone diseases in humans. In this work we evaluated the influence of different Al (III) concentrations on soil samples (eutrophic cambisol) and corn (Zea mays) and cowpea (Vigna unguiculata) crops. This evaluation was made by the morphological and spectrophotometric analysis of the plants and by the analyzes by the titulometric and spectrophotometric method for the soil. Thus, a planting was performed for 21 days. The seed containers, three corn or three bean, were arranged in eight blocks, each block containing all soil samples treated with different Al (III) concentrations. After the germination and growth period, the crops and soil were analyzed. The main symptoms of morphological alteration observed in the plants were chlorosis, leaf curling and reduction in the root system and size. The spectrophotometric analysis of the plants resulted in Al (III) concentrations between 167.58-181.26 mg L-1. The analyzes performed on soil samples for Al (III) concentration by both methods presented different values. The titration method showed variations between 16.19-59.36 mg L-1 of Al (III), while in the spectrophotometric the values obtained were between 168.24-230.77 mg L-1 of Al (III).
Caracterização físico-química e microbiológica do queijo coalho, com e sem registro, comercializado durante o período seco e chuvoso na cidade de Serra Talhada-PE
(2019) Souza, Mailza Gonçalves de; Silva, Fabiana Maria da; http://lattes.cnpq.br/3782949109950763; http://lattes.cnpq.br/8159251448025679
Much appreciated by consumers, curd cheese is produced in an industrial, artisanal and informal way, which can make available to the population a product with or without nutritional and microbiological quality. Thus, the objective was to analyze the physicochemical and microbiological characteristics of curd cheese, with and without registration sold during the dry and rainy season in the city of Serra Talhada-PE. Twenty samples of rennet cheese were acquired at the different commercialization points of the city and in two different periods (dry and rainy), ten were registered cheese and ten without registration. A completely randomized design with 2x2 factorial design (two periods, rainy and dry and cheeses with and without registration) was used. The results were subjected to analysis of variance and Tukey test at 5%, using the Minitab version 16.2.3 program. In the physicochemical analyzes, the pH, acidity, fat, mineral matter and humidity did not differ statistically (p> 0.05 ), but there was a difference for the temperature (p <0.05), being the average of the cheese without and registered in the dry and rainy period of 19, 20, 8, and 13° C respectively. The protein presented statistical difference for the two studied variables (periods and registration), being the averages for the cheese with and without registration, in the dry and rainy periods of 20,43%, 21,20% 25,665 and 23,30%. . Of the cheeses registered, 90% of the analyzed samples, in the dry and rainy period, presented positive results for the presence of thermotolerant coliforms. For unregistered cheese, 100% of the samples were contaminated in both periods analyzed. For the presence of Salmonella, cheeses registered at 20% were contaminated with the bacteria. In the rainy season, 60% of the unregistered cheeses were positive, while 80% of the samples had contaminated cheeses. The result for Staphylococcus aureus analysis was negative in 100% of the samples in both periods analyzed. The rennet cheese sold in the municipality of Serra Talhada, presents contamination by microorganisms that can cause serious damage to the health of consumers, in addition to improper storage temperature.
Concentração de elementos-traço chumbo (Pb) e cobre (Cu) em tecidos de Chelonia mydas (Linnaeus, 1758) no Litoral Sul de Pernambuco, Nordeste do Brasil
(2021-08-06) Queiroz, Emily Pereira de; Moura, Geraldo Jorge Barbosa de; Rodrigues, Midiã da Silva; http://lattes.cnpq.br/4953311636839935; http://lattes.cnpq.br/1348666346504103; http://lattes.cnpq.br/9237498056744804
Between threats to sea turtles species is the contamination of marine enviroments caused by trace elements wich infiltrate into organisms through food, airways or skin and can be passed on by trophic levels. The species Chelonia mydas has coastal habits whose main diet item is seaweed, which had evidence of accumulation by trace elements. This work determined the concentrations of trace elements lead (Pb) and copper (Cu), in order to know the level of contamination of local individuals and the bioavailability of the elements in habitat. 43 samples of C. mydas liver and muscle organs from the southern coast of Pernambuco, Northeast Brazil, collected from November 2016 to November 2018 were used. The quantification was performed by an Inductively coupled plasma - optical emission spectrometry (ICP OES). Cu showed a greater amount in liver, while Pb was present in a higher concentration in muscle, not being detectable in liver. For Cu, the highest concentration found was 64,683 mg kg-1 (6,389–212,286) while for Pb it was 4,115mg kg-1 (1.4–7,424). The southern coast of Pernambuco showed higher concentrations than other Brazilian states and several areas around the world, showing how other threats to the species mask the impacts of these contaminants, whose accumulation mechanisms need further studies to be fully understood. The values found provide a basis for monitoring the species and contamination of the local habitat.
Mastite subclínica causada por Staphylococcus aureus: impacto econômico e na saúde pública
(2016) Rebouças, Rodolpho Almeida; Silva, Nivan Antônio Alves da; http://lattes.cnpq.br/3505011500604071; http://lattes.cnpq.br/9440496743455219
Subclinical mastitis is a silent disease without macroscopic changes in milk or udder, being considered the disease that causes the greatest losses to dairy cattle. The losses caused by subclinical mastitis are significant, mainly due to the reduction in the production of the quarters, in addition there is a reduction in milk quality, interfering in the characteristics of this, important for the dairy products industry. Staphylococcus aureus is the main causative agent of this disease, being an important pathogen, also responsible for food poisoning. Foods involved in outbreaks and cases of staphylococcal food poisoning include raw milk, pasteurized milk and cheeses, with S. aureus being the most frequently isolated microorganism. Milk from cows with mastitis is the second food of animal origin in which there is greater percentage of isolation of Staphylococcus aureus Resistant Methicillin. Producers' awareness is extremely important to reduce the impacts caused by this disease, since, from the knowledge, measures can be taken to prevent and control the disease in the herds and consequently to produce a quality product, preventing it from causing problems. In view of this, this paper aims to elaborate a literature review on subclinical mastitis caused by S. aureus and its economic and public health impacts in order to support the preparation of didactic material for informative purposes for rural producers.
Relatório de estágio supervisionado obrigatório em restaurante, com um diagnostico higiênico sanitário
(2019) Lira, Vanessa Azevedo; Silveira, Ana Virgínia Marinho; Lira, Maria de Lourdes Azevedo; http://lattes.cnpq.br/8207812492517198; http://lattes.cnpq.br/6172165135794878
Resíduos de antimicrobianos no leite e sua importância para a saúde pública
(2018) Leite Júnior, Nitalmo; Mendonça, Carla Lopes de; http://lattes.cnpq.br/3128979736085796; http://lattes.cnpq.br/6476986476934876
Food and nutrition security is the realization of the right of everyone to regular and permanent access to quality food in sufficient quantity and without compromising access to other essential needs, including health promotion and quality assurance biological, health, nutritional and technological aspects of food. Some of the actions aimed at ensuring food safety are concerned with the control of residual remnants in food. The presence of antimicrobial residues in drinking milk is a cause for great concern, since in addition to causing economic losses by interfering in the production of dairy products, it poses risk to consumer health, which may predispose to allergic reactions, genotoxic and carcinogenic responses, and favor the emergence of resistant bacteria. In order to draw attention to this theme, the objective of this work is to carry out a review of the literature on antimicrobial residues in milk intended for human consumption and its implications for public health. For this purpose, databases, books, public entities' websites, specialized legislation, as well as informational and journalistic material regarding the subject matter were consulted. Based on the literature consulted, the presence of antimicrobial residues in milk is an important public health problem, because although there are government control and inspection programs, as well as supporting legislation, several studies carried out in several brazilian states, including in Pernambuco, have detected the presence of this type of contamination, reaching levels beyond the limits established in the specific standards. It is necessary that this topic be approached as a State policy, with broad actions encompassing different spheres and with due attention to the control and inspection programs, in addition, producers should be oriented about the risks that are involved, as well as the preventive strategies Veterinary Medicine assumes an important role in the search for a more sustainable and professionally managed animal husbandry, based on preventive health strategies and the adequate and rational use of therapeutic resources, concerned above all with the health and well-being of consumers and with the promotion of Single Health.
Uso de agrotóxico na agricultura familiar ás margens do rio Pajeú no município de Calumbi no sertão pernambucano
(2020) Araújo, Anderson dos Santos; Almeida, Rosa Honorato de; http://lattes.cnpq.br/4319299572657528
Family agriculture in Brazil accounts for 70% of all food consumed in the domestic market, however, the difficulty of access to information and the lack of technical assistance has promoted the excessive use of pesticides. In Pernambuco, there are about 6,619 tons of pesticides used annually and an average of 1545 cases of intoxication between 2002 and 2014. In view of the above, the objective of the present study was to conduct a survey of the profile of riverine family producers regarding the use of agrochemicals and safety procedures during their use. The study was carried out in the Sertão do Alto Pajeú region of Pernambuco, in the municipality of Calumbi, with family farmers located on the banks of the Pajeú River. The data were collected from the application of an oral questionnaire, subdivided into three themes: 1- Cultures worked; 2- Agrotoxic used and 3- Personal protective equipment. A total of 25 family farmers were interviewed and the choice of farmers was made according to the best profile of family farmer and proximity to the banks of the Pajeú River. This study reveals an important social and environmental problem, which is reproduced in several rural areas of the country, within the context of food production by family agriculture. A significant portion of the farmers interviewed were found to use agrochemicals, which are not recommended for crops and classified as very dangerous to the environment, also highlighting the non-use of IPEs. If these family farmers had the opportunity and technical guidance, access to information and government incentives, the reality presented in this research could be different.