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1.
J Clin Gastroenterol ; 2024 Apr 11.
Article in English | MEDLINE | ID: mdl-38597414

ABSTRACT

BACKGROUND: US-Mexico (US-MX) border regions are impacted by socioeconomic disadvantages. Alcohol use disorder remains widely prevalent in US-MX border regions, which may increase the risk of alcoholic liver disease (ALD). GOALS: We aimed to characterize ALD mortality trends in border regions compared to non-border regions from 1999 to 2020 in the United States (US). METHODS: We performed a cross-sectional analysis using the CDC repository. We queried death certificates to find ALD-related deaths from 1999 to 2020, which included demographic information such as gender, race/ethnicity, and area of residence. We estimated age-adjusted mortality rates (AAMR) per 100,000 population and compared the AAMRs across border and non-border regions. We also explored yearly mortality shifts using log-linear regression models and calculated the average annual percentage change (AAPC) using the Monte Carlo permutation test. RESULTS: In all, 11,779 ALD-related deaths were identified in border regions (AAMR 7.29) compared with 361,523 in non-border regions (AAMR 5.03). Border male (AAMR 11.21) and female (AAMR 3.77) populations were higher compared with non-border male (AAMR 7.42) and female (2.85) populations, respectively. Border non-Hispanic populations (AAMR 7.53) had higher mortality compared with non-border non-Hispanic populations (4.79), while both populations experienced increasing mortality shifts (AAPC +1.7, P<0.001 and +3.1, P<0.001, respectively). Border metropolitan (AAMR 7.35) and non-metropolitan (AAMR 6.76) regions had higher mortality rates compared with non-border metropolitan (AAMR 4.96) and non-metropolitan (AAMR 5.44) regions. CONCLUSIONS: Mortality related to ALD was higher in border regions compared with non-border regions. Border regions face significant health disparities when comparing ALD-related mortality.

3.
Am Heart J Plus ; 38: 100357, 2024 Feb.
Article in English | MEDLINE | ID: mdl-38510739

ABSTRACT

The trajectory of several cardiovascular diseases (CVD), including acute myocardial infarction (AMI), has been adversely impacted by COVID-19, resulting in a worse prognosis. The Social Vulnerability Index (SVI) has been found to affect certain CVD outcomes. In this cross-sectional analysis, we investigated the association between the SVI and comorbid COVID-19 and AMI mortality using the CDC databases. The SVI percentile rankings were divided into four quartiles, and age-adjusted mortality rates were compared between the lowest and highest SVI quartiles. Univariable Poisson regression was utilized to calculate risk ratios. A total of 5779 excess deaths and 1.17 excess deaths per 100,000 person-years (risk ratio 1.62) related to comorbid COVID-19 and AMI were attributable to higher social vulnerability. This pattern was consistent across the majority of US subpopulations. Our findings offer crucial epidemiological insights into the influence of the SVI and underscore the necessity for targeted therapeutic interventions.

4.
Article in English | MEDLINE | ID: mdl-38431496

ABSTRACT

INTRODUCTION: Inflammatory bowel disease (IBD) is linked to immune-mediated pathogenesis and a pro-inflammatory state, leading to accelerated atherosclerosis. This earlier onset of clinical cardiovascular disease poses significant morbidity and mortality. We sought to identify IHD mortality trends in individuals with IBD in the United States (US). METHODS: Mortality due to ischemic heart diseases (IHD) as the underlying cause of death with the IBD as a contributor of death were queried from death certificates using the CDC database from 1999 to 2020. Yearly crude mortality rates (CMR) were estimated by dividing the death count by the respective population size, reported per 100,000 persons. Mortality rates were adjusted for age using the Direct method and compared by demographic subpopulations. Log-linear regression models were utilized to assess temporal variation (annual percentage change [APC]) in mortality. RESULTS: Age-adjusted mortality rates (AAMR) decreased from 0.11 in 1999 to 0.07 in 2020, primarily between 1999 and 2018 (APC -4.41, p < 0.001). AAMR was higher among male (AAMR 0.08) and White (AAMR 0.08) populations compared to female populations (AAMR 0.06) and Black (AAMR 0.04) populations, respectively. No significant differences were seen when comparing mortality between urban (AAMR 0.07) and rural (AAMR 0.08) regions. Southern US regions (AAMR 0.06) had the lowest mortality rates when compared to the other US census regions: Northeastern (AAMR 0.08), Midwestern (AAMR 0.08), and Western (AAMR 0.08). CONCLUSION: Disparities in IHD mortality exist among individuals with IBD in the US based on demographic factors, with an overall decline in mortality during the 22-year period. Further investigation is warranted to confirm these findings and evaluate for contributors to the observed disparities.

5.
PLoS One ; 19(1): e0292167, 2024.
Article in English | MEDLINE | ID: mdl-38277379

ABSTRACT

BACKGROUND: Healthcare coverage has been shown to have implications in the prevalence of coronary artery disease. We explore the impact of lack of healthcare coverage on ischemic heart disease (IHD) mortality in the US. METHODS: We obtained county-level IHD mortality and healthcare coverage data from the CDC databases for a total of 3,119 US counties. The age-adjusted prevalence of current lack of health insurance among individuals aged 18 to 64 years were obtained for the years 2018 and 2019 and were placed into four quartiles. First (Q1) and fourth quartile (Q4) had the least and highest age-adjusted prevalence of adults without health insurance, respectively. IHD mortality rates, adjusted for age through the direct method, were obtained for the same years and compared among quartiles. Ordinary least squares (OLS) regression for each demographic variable was conducted with the quartiles as an ordinal predictor variable and the age-adjusted mortality rate as the outcome variable. RESULTS: We identified a total of 172,942 deaths related to ischemic heart disease between 2018 and 2019. Overall AAMR was higher in Q4 (92.79 [95% CI, 92.35-93.23]) compared to Q1 (83.14 [95% CI, 82.74-83.54]), accounting for 9.65 excess deaths per 100,000 person-years (slope = 3.47, p = 0.09). Mortality rates in Q4 for males (126.20 [95% CI, 125.42-126.98] and females (65.57 [95% CI, 65.08-66.05]) were higher compared to Q1 (115.72 [95% CI, 114.99-116.44] and 57.48 [95% CI, 57.04-57.91], respectively), accounting for 10.48 and 8.09 excess deaths per 100,000 person-years for males and females, respectively. Similar trends were seen among Hispanic and non-Hispanic populations. Northeastern, Southern, and Western regions had higher AAMR within Q4 compared to Q1, with higher prevalence of current lack of health insurance accounting for 49.2, 8.15, and 29.04 excess deaths per 100,000 person-years, respectively. CONCLUSION: A higher prevalence of adults without healthcare coverage may be associated with increased IHD mortality rates. Our results serve as a hypothesis-generating platform for future research in this area.


Subject(s)
Myocardial Ischemia , Male , Adult , Female , Humans , Myocardial Ischemia/epidemiology , Data Collection , Forecasting , Delivery of Health Care
7.
Mar Biotechnol (NY) ; 25(4): 548-556, 2023 Aug.
Article in English | MEDLINE | ID: mdl-37335411

ABSTRACT

The mangrove oyster (Crassostrea gasar) is Brazil's second most cultured species and presents a high potential for aquaculture. However, artificial selection in a highly fecund species and significant variance in reproductive success can result in the loss of genetic diversity and increases the inbreeding rate, especially in cultivated populations. In this study, we investigated the genetic structure and diversity of C. gasar in wild and cultivated populations using 14 microsatellites. Spatial genetic comparisons revealed the existence of two main genetic groups of C. gasar, one comprising the population in cultivation and the other formed by wild populations along the southern and southeastern Brazilian coasts. Although no common genetic structure exists among wild populations, it is possible to observe a distribution gradient based on discriminant analysis of principal components consistent with their geographic distribution. However, it is insufficient to differentiate them genetically. Despite artificial reproduction, the genetic diversity values of the cultivated population remained relatively high and did not show a reduction. Therefore, monitoring the cultivated population and establishing reference values for genetic diversity will allow the adoption of strategies both for the viability of the cultivated population and the management of wild populations.


Subject(s)
Crassostrea , Animals , Crassostrea/genetics , Brazil/epidemiology , Seafood , Aquaculture , Genetic Structures
8.
Foods ; 12(10)2023 May 22.
Article in English | MEDLINE | ID: mdl-37238901

ABSTRACT

The aim of this study was to determine the thermophysical properties and process parameters of cylindrical carrot pieces during their chilling. For this, the temperature of the central point of the product, initially at 19.9 °C, was recorded during chilling under natural convection, with the refrigerator air temperature maintained at 3.5 °C. A solver was created for the two-dimensional analytical solution of the heat conduction equation in cylindrical coordinates. This solver and the experimental data set were coupled to the LS Optimizer (V. 7.2) optimization software to simultaneously determine not only the values of thermal diffusivity (α) and heat transfer coefficient (hH), but also the uncertainties of these values. These values were consistent with those reported in the literature for carrots; in this study, the precision of these values and the confidence level of the results (95.4%) were also presented. Furthermore, the Biot numbers were greater than 0.1 and less than 40, indicating that the mathematical model presented in this study can be used to simultaneously estimate α and hH. A simulation of the chilling kinetics using the values obtained for α and hH showed good agreement with the experimental results, with a root mean square error RMSE = 9.651 × 10-3 and a chi-square χ2 = 4.378 × 10-3.

9.
Molecules ; 28(8)2023 Apr 18.
Article in English | MEDLINE | ID: mdl-37110783

ABSTRACT

Among the vegetables that stand out for their high concentration of anthocyanins, red cabbage appears as one of the most-used sources of these pigments in food production and it is considered a suitable raw material for the extraction of natural dye. Therefore, the objective was to carry out the production of natural extracts from red cabbage, under different conditions, varying the solvent, type of pre-treatment, pH range, and processing temperature during the concentration of the extracts. The anthocyanins were extracted from red cabbage using the following solvents: distilled water, 25% ethyl alcohol, and 70% ethyl alcohol. The raw material was divided into two groups, the first was subjected to a drying pre-treatment at 70 °C for 1 h and for the second group, the extraction was performed with the raw material in natura. Two pH ranges of 4.0 and 6.0 and extraction temperatures of 25 °C and 75 °C were used in the extracts, resulting in 24 formulations. The extracts obtained were analyzed for colorimetric parameters and anthocyanins. The results of anthocyanins show that the methodology that uses 25% alcohol, pH 4.0, and processing temperature of 25 °C produces a reddish extract and better results in the extraction, presenting average values of 191.37 mg/100 g of anthocyanins, being 74% higher compared to the highest values obtained in the other extracts where the same raw material was used and the solvents differed.


Subject(s)
Anthocyanins , Brassica , Solvents , Ethanol , Plant Extracts
10.
Foods ; 12(3)2023 Jan 28.
Article in English | MEDLINE | ID: mdl-36766097

ABSTRACT

Gum and mucilage from seeds and fruits are objects of study because they have characteristics of high viscosity at low concentrations and gelling properties, which are useful characteristics for modifying the texture and stabilizing products in the food industry. Chia and okra have high concentrations of polysaccharide gums in their composition, which makes them an interesting target for use in the composition of foods that require the use of texture enhancers and stabilizers. The present study investigated the influence of dehydration temperature on the characteristics of chia and okra powder mucilage obtained at different temperatures. The mucilages were extracted using an aqueous process and dehydrated in an air circulation oven at 50, 60, and 70 °C until hydroscopic equilibrium. Then, the powdered chia mucilage (CM) and okra mucilage (OM) were analyzed for chemical and physicochemical characteristics, bioactive compounds, antioxidant activity, and physical properties. It was found that powdered mucilage had low water content and water activity, with CM standing out in terms of ash, pectin, and starch content and OM, along with higher averages of proteins, sugars, total phenolic compounds, anthocyanins, flavonoids, and antioxidant activity. As for the physical parameters, CM stood out in relation to greater solubility and lower hygroscopicity, whereas OM presented higher wettability rates. Both powdered mucilages were classified as having good fluidity and cohesiveness from low to intermediate. In relation to the dehydration temperature, the best mucilage properties were verified at 70 °C. The study revealed that mucilages have good functional properties offering great potential as raw material for industry.

11.
Foods ; 12(2)2023 Jan 07.
Article in English | MEDLINE | ID: mdl-36673378

ABSTRACT

Pomegranate is a fruit desirable for its nutritional and medicinal properties which has a great industrial potential that is yet under-explored. Notable for its integral use, the peels are used in medicinal infusions and the seeds consumed without restrictions. In this sense, the objective of this work is to determine the drying kinetics of pomegranate peels and seeds in a hot air circulation oven, at temperatures of 50, 60, and 70 °C, adjust mathematical models to experimental data, determine the effective diffusivities and thermodynamic properties of the process and the physicochemical characteristics of peels and seeds of fresh pomegranates and in their flours. Twelve models were used to adjust the drying kinetics, obtaining better results with the Diffusion Approximation model, Verma, and modified Henderson and Pabis. The effective diffusivities were well represented by an Arrhenius equation, with activation energies of 31.39 kJ/mol for seeds and 10.60 kJ/mol for peels. In the drying process, the seeds showed higher values of enthalpy, entropy, and Gibbs free energy concerning peels. Pomegranate peel and seed flours have proximal composition and distinct physicochemical characteristics, with high fiber, carbohydrate, and energy content. In addition, peel flours stand out for their mineral content, and seed flours do for their lipid and protein content.

12.
Ciênc. Saúde Colet. (Impr.) ; 27(9): 3461-3474, set. 2022. graf
Article in Portuguese | LILACS-Express | LILACS | ID: biblio-1394233

ABSTRACT

Resumo Este artigo examina as continuidades, rupturas e temporalidades na produção de bioidentidades no contexto da epidemia de HIV-Aids. Problematiza, a partir de um estudo multissituado na confluência de áreas e subáreas biomédicas que despontavam em popularidade nas décadas de 1980 e 1990, as agendas comuns de pesquisa sob a moldagem dos termos e categorizações popularizadas durante o pânico sexual provocado pelo aumento das taxas de contágio e morte. O desenho metodológico é caracterizado como de métodos mistos e envolveu, prioritariamente, pesquisa documental e revisão temática sobre a produção acadêmica nas áreas e disciplinas inseridas no eixo das biociências, com a finalidade de buscar e selecionar os estudos primários sobre homossexualidade e HIV/Aids, por meio da produção global. As conclusões atestam que a administração da Aids em sua condição crônica tratável produziu afinidades eletivas e de correspondência entre categorias epidemiológicas e sociais (MSM/HSH, PWA, GMLA) com noções de gênero e sexualidade definidas.


Abstract This article examines the continuities, ruptures and temporalities in the production of bioidentities in the context of the HIV-AIDS epidemic. Based on a multi-site study at the confluence of biomedical areas and sub-areas that rose in popularity in the 1980s and 1990s, it questions the common research agendas under the influence of terms and categorizations popularized during the sexual panic of AIDS caused by the increase in contagion rates and death. The methodological design is characterized as mixed methods and primarily involved documental research and thematic review on academic production in the areas and disciplines included under the aegis of the biosciences, in order to search for and select primary studies on homosexuality and HIV/AIDS, through global production. The conclusions attest that the management of AIDS in its treatable chronic condition produced elective and correspondence affinities between epidemiological and social categories (MSM/PWA, GMLA) with defined notions of gender and sexuality.

13.
Cien Saude Colet ; 27(9): 3461-3474, 2022 Sep.
Article in Portuguese | MEDLINE | ID: mdl-36000637

ABSTRACT

This article examines the continuities, ruptures and temporalities in the production of bioidentities in the context of the HIV-AIDS epidemic. Based on a multi-site study at the confluence of biomedical areas and sub-areas that rose in popularity in the 1980s and 1990s, it questions the common research agendas under the influence of terms and categorizations popularized during the sexual panic of AIDS caused by the increase in contagion rates and death. The methodological design is characterized as mixed methods and primarily involved documental research and thematic review on academic production in the areas and disciplines included under the aegis of the biosciences, in order to search for and select primary studies on homosexuality and HIV/AIDS, through global production. The conclusions attest that the management of AIDS in its treatable chronic condition produced elective and correspondence affinities between epidemiological and social categories (MSM/PWA, GMLA) with defined notions of gender and sexuality.


Este artigo examina as continuidades, rupturas e temporalidades na produção de bioidentidades no contexto da epidemia de HIV-Aids. Problematiza, a partir de um estudo multissituado na confluência de áreas e subáreas biomédicas que despontavam em popularidade nas décadas de 1980 e 1990, as agendas comuns de pesquisa sob a moldagem dos termos e categorizações popularizadas durante o pânico sexual provocado pelo aumento das taxas de contágio e morte. O desenho metodológico é caracterizado como de métodos mistos e envolveu, prioritariamente, pesquisa documental e revisão temática sobre a produção acadêmica nas áreas e disciplinas inseridas no eixo das biociências, com a finalidade de buscar e selecionar os estudos primários sobre homossexualidade e HIV/Aids, por meio da produção global. As conclusões atestam que a administração da Aids em sua condição crônica tratável produziu afinidades eletivas e de correspondência entre categorias epidemiológicas e sociais (MSM/HSH, PWA, GMLA) com noções de gênero e sexualidade definidas.


Subject(s)
Acquired Immunodeficiency Syndrome , HIV Infections , Sexually Transmitted Diseases , Acquired Immunodeficiency Syndrome/epidemiology , HIV Infections/epidemiology , Homosexuality, Male , Humans , Male , Sexual Behavior , Sexually Transmitted Diseases/epidemiology
14.
Foods ; 11(12)2022 Jun 14.
Article in English | MEDLINE | ID: mdl-35741947

ABSTRACT

The present study investigated the mathematical modeling foam-mat drying kinetics of cumbeba pulp and the effect of drying conditions on the color and contents of ascorbic acid, flavonoids, and phenolic compounds of the powder pulps obtained. Foam-mat drying was carried out in a forced air circulation oven at temperatures of 50, 60, and 70 °C, testing foam-mat thicknesses of 0.5, 1.0, and 1.5 cm. The increase in the water removal rate is a result of the increase in air temperature and the decrease in the thickness of the foam layer. Among the empirical and semi-empirical mathematical models, the Midilli model was the one that best represented the drying curves in all conditions evaluated. Effective water diffusivity ranged from 1.037 × 10-9 to 6.103 × 10-9 m2 s-1, with activation energy of 25.212, 33.397, and 36.609 kJ mol-1 for foam thicknesses of 0.5, 1.0, and 1.5 cm, respectively. Cumbeba powders showed light orangish colors and, as the drying temperature increased from 50 to 70 °C, for all thicknesses, the lightness value (L*) decreased and the values of redness (+a*) and yellowness (+b*) increased. Foam-mat drying at higher temperatures (60 and 70 °C) improved the retention of ascorbic acid and flavonoids, but reduced the content of phenolic compounds, while the increase in thickness, especially for flavonoids and phenolic compounds, caused reduction in their contents. The foam-mat drying method allowed obtaining a good-quality cumbeba pulp powder.

15.
BMJ Case Rep ; 15(2)2022 Feb 07.
Article in English | MEDLINE | ID: mdl-35131791

ABSTRACT

Intracranial abscess is a life-threatening disease that is uncommon in paediatric populations. Although there have been few reports in the literature, some aetiologies, such as mastoiditis and sinusitis, have been proposed. The pathophysiology is not completely known, and there are no data regarding the long-term follow-up of these patients. Herein, we present a case of a newborn affected with a mass in the suboccipital region due to an extracranial and intracranial abscess that had no clear association with infections except for a transient fever episode 1 month earlier. Isolation of Staphylococcus aureus from an open-surgery sample identified the cause of the mass. The patient achieved excellent recovery with no recurrence even after 8 years of follow-up. To our knowledge, this rare pattern of infection highlights the importance of early diagnosis in combination with a surgical approach as an effective diagnosis and treatment approach that provided a good outcome.


Subject(s)
Brain Abscess , Mastoiditis , Staphylococcal Infections , Brain Abscess/diagnostic imaging , Brain Abscess/drug therapy , Child , Fever , Humans , Infant, Newborn , Staphylococcal Infections/diagnosis , Staphylococcal Infections/drug therapy
16.
Physis (Rio J.) ; 32(2): e320206, 2022. graf
Article in Portuguese | LILACS | ID: biblio-1386843

ABSTRACT

Resumo A mais recente pandemia, caracterizada como SARS-CoV-2, se insere em uma linhagem conhecida de patógenos virais que podem desencadear infecções respiratórias severas. Em que pese a importância de se avançar no conhecimento biomédico como forma de garantir o tratamento e a eficácia na suposta erradicação da doença, não é menos urgente refletir acerca das circunstâncias sociais que modelam essa nova situação epidemiológica. Este ensaio analisa como as representações sobre e contágio e morte imbricadas na díade saúde-doença, como fenômenos tradicionais, se revestiram de proposições morais, particularmente entre os meses de janeiro e março de 2020, quando as definições de surto, epidemia e pandemia se tornaram inextricavelmente misturadas. Naquele contexto, e a partir da criação de um tipo de dispositivo de saúde animado por imperativos afeitos à forma mais mortal da doença, a Covid-19 ganhou materialidade. Constituído na confluência de concepções étnico-racializantes, este dispositivo pedagogizou as primeiras imagens da doença, sedimentadas em uma gramática altamente visual e linguística afeitas a um medo coletivo. Examinamos que o trabalho de recepção, nomeação e enquadramento da Covid-19 dependeu de regimes de visibilidade condicionados por processos tradicionais, relativos à materialização e animação do vírus enquanto uma ameaça não só epidemiológica e social, mas política e moral.


Abstract The most recent pandemic, characterized as SARS-CoV-2, is part of a known lineage of viral pathogens that can trigger severe respiratory infections. Despite the importance of advancing biomedical knowledge as a way to guarantee treatment and effectiveness in the supposed eradication of the disease, it is no less urgent to reflect on the social circumstances that shape this new epidemiological situation. This essay analyzes how the representations of contagion and death imbricated in the health-disease dyad, as traditional phenomena, took on moral propositions, particularly between the months of January and March 2020, when the definitions of outbreak, epidemic and pandemic became inextricably mixed. In that context, and from the creation of a type of health apparatus animated by imperatives related to the deadliest form of the disease, Covid-19 gained materiality. Constituted at the confluence of ethnic-racializing conceptions, this apparatus formed the first visual and linguistic images of the disease. Finally, this article examines that the work of reception, appointment and framing of Covid-19 depended on visibility regimes conditioned by traditional processes, related to the materialization and animation of the virus as a threat not only epidemiological and social, but political and moral.


Subject(s)
Humans , Virus Diseases/epidemiology , Disease Transmission, Infectious , Pandemics/prevention & control , Ethnocentrism , COVID-19/prevention & control , Health Education , Fear , Health Policy
17.
Foods ; 10(4)2021 Apr 06.
Article in English | MEDLINE | ID: mdl-33917616

ABSTRACT

The residue generated from the processing of Tacinga inamoena (cumbeba) fruit pulp represents a large amount of material that is discarded without proper application. Despite that, it is a raw material that is source of ascorbic acid, carotenoids and phenolic compounds, which are valued in nutraceutical diets for allegedly combating free radicals generated in metabolism. This research paper presents a study focused on the mathematical modeling of drying kinetics and the effect of the process on the level of bioactive of cumbeba residue. The experiments of cumbeba residue drying (untreated or whole residue (WR), crushed residue (CR) and residue in the form of foam (FR)) were carried out in a fixed-bed dryer at four air temperatures (50, 60, 70 and 80 °C). Effective water diffusivity (Deff) was determined by the inverse method and its dependence on temperature was described by an Arrhenius-type equation. It was observed that, regardless of the type of pretreatment, the increase in air temperature resulted in higher rate of water removal. The Midilli model showed better simulation of cumbeba residue drying kinetics than the other models tested within the experimental temperature range studied. Effective water diffusivity (Deff) ranged from 6.4890 to 11.1900 × 10-6 m2/s, 2.9285 to 12.754 × 10-9 m2/s and 1.5393 × 10-8 to 12.4270 × 10-6 m2/s with activation energy of 22.3078, 46.7115 and 58.0736 kJ/mol within the temperature range of 50-80 °C obtained for the whole cumbeba, crushed cumbeba and cumbeba residue in the form of foam, respectively. In relation to bioactive compounds, it was observed that for a fixed temperature the whole residue had higher retention of bioactive compounds, especially phenolic compounds, whereas the crushed residue and the residue in the form of foam had intermediate and lower levels, respectively. This study provides evidence that cumbeba residue in its whole form can be used for the recovery of natural antioxidant bioactive compounds, mainly phenolic compounds, with the possibility of application in the food and pharmaceutical industries.

18.
Food Technol Biotechnol ; 59(4): 507-518, 2021 Dec.
Article in English | MEDLINE | ID: mdl-35136374

ABSTRACT

RESEARCH BACKGROUND: Fresh cheese varieties represent an important share of the whole cheese market. Although with great variability in terms of composition and method of preparation, fresh cheese varieties are bland in flavour and their production originates whey drainage. On the other hand, the cheese market is also responsible for a significant amount of food waste. These motivated the development of a novel fresh cheese incorporating ripened cheese, which can then represent a valorisation of ripened cheese surpluses. EXPERIMENTAL APPROACH: A variable amount of ripened cheese was dispersed in a paste of gelatinized starch (normal corn or waxy rice) in milk, producing melted cheese bases. These cheese bases were diluted with milk, sometimes enriched with skimmed milk powder, and then renneted. Macronutrient content and physical properties of the resultant fresh cheese were characterized. Sensory analyses of samples incorporating mature Cheddar, goat's or ewe's cheese were carried out. RESULTS AND CONCLUSIONS: Gel formation of the initial mixture was hindered above 8% (m/m) incorporation of ripened cheese, which could be overcome by the addition of skimmed milk powder. These observations are corroborated by the hardness values from texture analysis tests. Evaluation of syneresis of different samples enabled to conclude that the addition of 2% (m/m) starch and 2.8% (m/m) skimmed milk powder contributes to reduction of its magnitude by half. Sensory analysis with a consumer panel indicated a preference for a more consistent texture of the fresh cheese, and for the Cheddar flavour. NOVELTY AND SCIENTIFIC CONTRIBUTION: A novel fresh cheese variety incorporating dispersed ripened cheese was prepared. The proposed method is versatile and quite straightforward and does not use polyphosphate salts or originate whey wastage. The fresh cheese physical and sensorial properties can be manipulated by the amounts and types of added starch, ripened cheese and skimmed milk powder; such tailoring of fresh cheese properties widens product portfolio capacity for a larger number of consumer groups. The added ripened cheese can come from non-sellable pieces and unsold stocks from the retail sector, contributing to a reduction of food waste.

20.
Biosci. j. (Online) ; 36(6): 1900-1910, 01-11-2020. graf, tab
Article in English | LILACS | ID: biblio-1147954

ABSTRACT

Studies that demonstrate the effects of sources of nitrogen (N) applied before or after irrigation on the yield of winter crops are limited in literature. In this sense, the objective of this study was to compare the effect of sources of N applied immediately before or after 13 mm irrigation of wheat and bean winter crops. It was used a randomized complete block design, with 4 replicates, in a 5 × 2 + 1 factorial scheme, and 11 treatments consisted of five N sources: urea, polymer-coated urea, urea + ammonium sulfate, ammonium sulfate, and ammonium nitrate and a control treatment (without N fertilization). For wheat, although ammonium nitrate provided great N content in the leaves, the grain yield was lower due to the lodging of the plants; since the application of N either before or after irrigation did not influence the grain yield. Regarding the bean, N fertilization increased productivity, but there were no differences among N sources and, despite the greater N content in the leaves observed with the N supply before irrigation the greatest grain yield was observed when N was applied after the irrigation.


Estudos que demonstram os efeitos de fontes de nitrogênio (N) aplicadas antes ou após a irrigação na produtividade das culturas de inverno são limitados na literatura. Neste sentido, o objetivo deste trabalho foi comparar o efeito de fontes de N aplicadas imediatamente antes ou após a irrigação de 13 mm nas culturas do trigo e feijão de inverno. Utilizou-se o delineamento de blocos casualizados, com 4 repetições, em esquema fatorial incompleto 5 × 2 + 1, sendo 11 tratamentos com cinco fontes de N: ureia, ureia revestida com polímero, ureia + sulfato de amônio, sulfato de amônio e nitrato de amônio e um tratamento controle (sem adubação nitrogenada). Para o trigo, embora o nitrato de amônio tenha proporcionado maior teor de N nas folhas, a produtividade de grãos foi menor devido ao acamamento das plantas; já a aplicação de N antes ou após a irrigação não influenciou a produtividade de grãos. Com relação ao feijão, a adubação nitrogenada aumentou a produtividade, mas não houve diferenças entre as fontes de N e, apesar do maior teor de N nas folhas observadas com o suprimento de N antes da irrigação, a maior produtividade de grãos foi observada com a adubação após a irrigação.


Subject(s)
Polymers , Triticum , Phaseolus , Nitrogen
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