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1.
BMC Biol ; 22(1): 138, 2024 Jun 24.
Artículo en Inglés | MEDLINE | ID: mdl-38914996

RESUMEN

The vast majority of the food we eat comes from land-based agriculture, but recent technological advances in agriculture and food technology offer the prospect of producing food using substantially less or even virtually no land. For example, indoor vertical farming can achieve very high yields of certain crops with a very small area footprint, and some foods can be synthesized from inorganic precursors in industrial facilities. Animal-based foods require substantial land per unit of protein or per calorie and switching to alternatives could reduce demand for some types of agricultural land. Plant-based meat substitutes and those produced through fermentation are widely available and becoming more sophisticated while in the future cellular agricultural may become technically and economical viable at scale. We review the state of play of these potentially disruptive technologies and explore how they may interact with other factors, both endogenous and exogenous to the food system, to affect future demand for land.


Asunto(s)
Agricultura , Productos Agrícolas , Agricultura/métodos , Abastecimiento de Alimentos , Tecnología de Alimentos/métodos , Animales
2.
J Neurosci ; 43(47): 8000-8017, 2023 11 22.
Artículo en Inglés | MEDLINE | ID: mdl-37845034

RESUMEN

Although overconsumption of high-fat foods is a major driver of weight gain, the neural mechanisms that link the oral sensory properties of dietary fat to reward valuation and eating behavior remain unclear. Here we combine novel food-engineering approaches with functional neuroimaging to show that the human orbitofrontal cortex (OFC) translates oral sensations evoked by high-fat foods into subjective economic valuations that guide eating behavior. Male and female volunteers sampled and evaluated nutrient-controlled liquid foods that varied in fat and sugar ("milkshakes"). During oral food processing, OFC activity encoded a specific oral-sensory parameter that mediated the influence of the foods' fat content on reward value: the coefficient of sliding friction. Specifically, OFC responses to foods in the mouth reflected the smooth, oily texture (i.e., mouthfeel) produced by fatty liquids on oral surfaces. Distinct activity patterns in OFC encoded the economic values associated with particular foods, which reflected the subjective integration of sliding friction with other food properties (sugar, fat, viscosity). Critically, neural sensitivity of OFC to oral texture predicted individuals' fat preferences in a naturalistic eating test: individuals whose OFC was more sensitive to fat-related oral texture consumed more fat during ad libitum eating. Our findings suggest that reward systems of the human brain sense dietary fat from oral sliding friction, a mechanical food parameter that likely governs our daily eating experiences by mediating interactions between foods and oral surfaces. These findings identify a specific role for the human OFC in evaluating oral food textures to mediate preference for high-fat foods.SIGNIFICANCE STATEMENT Fat and sugar enhance the reward value of food by imparting a sweet taste and rich mouthfeel but also contribute to overeating and obesity. Here we used a novel food-engineering approach to realistically quantify the physical-mechanical properties of high-fat liquid foods on oral surfaces and used functional neuroimaging while volunteers sampled these foods and placed monetary bids to consume them. We found that a specific area of the brain's reward system, the orbitofrontal cortex, detects the smooth texture of fatty foods in the mouth and links these sensory inputs to economic valuations that guide eating behavior. These findings can inform the design of low-calorie fat-replacement foods that mimic the impact of dietary fat on oral surfaces and neural reward systems.


Asunto(s)
Corteza Prefrontal , Gusto , Humanos , Masculino , Femenino , Gusto/fisiología , Corteza Prefrontal/diagnóstico por imagen , Conducta Alimentaria , Grasas de la Dieta , Azúcares , Recompensa
3.
Crit Rev Food Sci Nutr ; : 1-16, 2024 Jul 08.
Artículo en Inglés | MEDLINE | ID: mdl-38976377

RESUMEN

In the current context, diabetes presents itself as a widespread and complex global health issue. This study explores the significant influence of food microstructure and food matrix components interaction (protein, lipid, polyphenols, etc.) on the starch digestibility and the glycaemic response of post-prandial glycemia, focusing on the potential effectiveness of incorporating bioactive components from whole grain cereals into dietary strategies for the management and potential prevention of diabetes. This study aims to integrate the regulation of postprandial glycaemic homeostasis, including the complexities of starch digestion, the significant potential of bioactive whole grain components and the impact of food processing, to develop a comprehensive framework that combines these elements into a strategic approach to diabetes nutrition. The convergence of these nutritional strategies is analyzed in the context of various prevalent dietary patterns, with the objective of creating an accessible approach to mitigate and prevent diabetes. The objective remains to coalesce these nutritional paradigms into a coherent strategy that not only addresses the current public health crisis but also threads a preventative approach to mitigate future prevalence and impact.

4.
Br J Nutr ; 131(9): 1600-1607, 2024 May 14.
Artículo en Inglés | MEDLINE | ID: mdl-38174417

RESUMEN

Broad variations in dietary and physical activity patterns are part of nutritional transition concept. An additional nutritional transition has as main characteristic the change of consumption of processed foods for ultra-processed foods (UPF). This study aims to evaluate trends of UPF availability in Portuguese population and its association with diet-related non-communicable diseases (NCD) health indicators. This ecological study used data from the Household Budget Surveys conducted by the National Statistics Institute each 5 years within a national representative sample of households. The percentage of UPF was calculated based on the total daily amount of food and beverages available per capita (in grams). Data from the years 1990, 1995, 2000 and 2005 were used, which were retrieved from DAFNE-Anemos Software. NCD age-standardised mortality, prevalence and incidence were obtained from the Global Burden of Disease database, for the years 2000, 2005, 2010 and 2015. Between 1990 and 2005, the UPF availability increased from 3·9 % to 13·8 %. Over the years, almost all food and beverages categories increased the UPF availability contribution, mainly noticeable for milk, sugar, cereal and meat products. Positive correlations were observed between UPF availability and digestive diseases both in prevalence (r = 0·062; P = 0·037) and incidence (r = 0·005; P = 0·010) measures. Neoplasms incidence also showed positive correlation with UPF availability (r = 0·002; P = 0·012). Trends in UPF availability in Portugal increased exponentially. At the same time, there is a trend towards a decrease in unprocessed and processed food availability. The Portuguese population should be made aware of the health risks resulting from excessive consumption of UPF.


Asunto(s)
Dieta , Comida Rápida , Enfermedades no Transmisibles , Humanos , Comida Rápida/efectos adversos , Comida Rápida/estadística & datos numéricos , Manipulación de Alimentos , Abastecimiento de Alimentos/estadística & datos numéricos , Alimentos Procesados , Incidencia , Enfermedades no Transmisibles/epidemiología , Portugal/epidemiología , Prevalencia
5.
Br J Nutr ; 131(8): 1461-1472, 2024 Apr 28.
Artículo en Inglés | MEDLINE | ID: mdl-38174358

RESUMEN

The study evaluated the association between ultra-processed foods (UPF) and nutrient intake and identified the socio-demographic characteristics associated with UPF consumption among a nationally representative sample of middle-older adults. Dietary assessment was collected in 2013 using a validated FFQ. The Nova system was used to classify food and drinks into UPF. The percentage of dietary energy from UPF was calculated and used throughout the analyses, and average nutrient intake across quintiles of UPF was evaluated. The determinants associated with the dietary caloric contribution of UPF intake were investigated using linear regression models. A cross-sectional analysis of a nationally representative study of Americans over the age of 50, the Health and Retirement Study, was conducted. The analysis included 6220 participants. The mean age was 65 (se 0·28) years, with 55 % being female. UPF intake accounted for 51 % (se 0·25) of total intake. An increase in the percentage of (%UPF) consumption was correlated with an increase in calories, carbohydrates, saturated fat and sugar, and a decrease in fibre, vitamins and minerals. %UPF intake was inversely associated with being Hispanic, higher income, physical activity, vegetarian diet and Mediterranean diet but positively associated with very low food insecurity. UPF represented half of the calories consumed. A higher %UPF intake was associated with a lower nutrient profile, suggesting decreasing %UPF intake as a strategy to improve the nutritional quality of middle-older adults. A few socio-demographic factors were associated with %UPF, which would help in planning strategies to reduce UPF consumption.


Asunto(s)
Comida Rápida , Alimentos Procesados , Humanos , Femenino , Anciano , Masculino , Estudios Transversales , Manipulación de Alimentos , Dieta , Ingestión de Energía
6.
Eur J Nutr ; 63(2): 377-396, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-37989797

RESUMEN

PURPOSE: To investigate the role of adiposity in the associations between ultra-processed food (UPF) consumption and head and neck cancer (HNC) and oesophageal adenocarcinoma (OAC) in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. METHODS: Our study included 450,111 EPIC participants. We used Cox regressions to investigate the associations between the consumption of UPFs and HNC and OAC risk. A mediation analysis was performed to assess the role of body mass index (BMI) and waist-to-hip ratio (WHR) in these associations. In sensitivity analyses, we investigated accidental death as a negative control outcome. RESULTS: During a mean follow-up of 14.13 ± 3.98 years, 910 and 215 participants developed HNC and OAC, respectively. A 10% g/d higher consumption of UPFs was associated with an increased risk of HNC (hazard ratio [HR] = 1.23, 95% confidence interval [CI] 1.14-1.34) and OAC (HR = 1.24, 95% CI 1.05-1.47). WHR mediated 5% (95% CI 3-10%) of the association between the consumption of UPFs and HNC risk, while BMI and WHR, respectively, mediated 13% (95% CI 6-53%) and 15% (95% CI 8-72%) of the association between the consumption of UPFs and OAC risk. UPF consumption was positively associated with accidental death in the negative control analysis. CONCLUSIONS: We reaffirmed that higher UPF consumption is associated with greater risk of HNC and OAC in EPIC. The proportion mediated via adiposity was small. Further research is required to investigate other mechanisms that may be at play (if there is indeed any causal effect of UPF consumption on these cancers).


Asunto(s)
Adenocarcinoma , Neoplasias Esofágicas , Neoplasias de Cabeza y Cuello , Humanos , Adiposidad , Estudios Prospectivos , Alimentos Procesados , Análisis de Mediación , Obesidad , Adenocarcinoma/epidemiología , Adenocarcinoma/etiología , Comida Rápida/efectos adversos , Dieta , Manipulación de Alimentos
7.
Eur J Nutr ; 2024 May 25.
Artículo en Inglés | MEDLINE | ID: mdl-38795126

RESUMEN

PURPOSE: To determine the contribution of ultra-processed foods (UPFs) to overall macronutrient intake and their association with anthropometric measurements, and to explore the perceptions regarding UPF consumption among young adults in Puducherry, India. METHODS: This study included 630 participants from three colleges selected using multistage cluster sampling. Following the demonstration of portion estimation, dietary data from previous day were collected using a Google Form-based tool. The participant's anthropometric measures were taken. Food items were classified into NOVA groups and intake analysis was performed using DietSoft software. The participants with low and high consumption were identified and focus group discussions were conducted in each group using criterion sampling. RESULTS: Of all the participants, 178 (28.3%) were overweight or obese. UPF contributed 9.3% of total energy intake and 2.8% protein, 9.9% fat, and 9.9% carbohydrates. The most consumed UPFs were biscuits, wafers (25%), and potato chips(16.2%). No significant association was found between anthropometric measures and UPF consumption. Qualitative findings revealed four major themes, further explained using the socio-ecological framework. CONCLUSION: UPF consumption in the region was lower than that reported in other global and Indian studies. While our study did not find a significant association between UPF consumption and anthropometric measures, there is a concerning shift from traditional diets to increased UPF reliance, driven by convenience and commercial factors. Addressing this is crucial for healthier choices and combating non-communicable diseases during this pivotal life stage.

8.
Biosci Biotechnol Biochem ; 88(3): 254-259, 2024 Feb 21.
Artículo en Inglés | MEDLINE | ID: mdl-37994666

RESUMEN

The Microbiome of the Built Environment (MoBE) is profoundly implicated in various sectors, including food science. The balance between beneficial and pathogenic microbes in these facilities directly influences product quality and public health. Maintaining a careful check on MoBE and external microbes is vital to the food industry to ensure quality control. There is also a risk of contamination in the meat processing facility as well. However, over-sanitization can increase drug-resistant microbes, highlighting the importance of balanced microbial management. Additionally, facility design, influenced by understanding MoBE, can optimize the growth of beneficial microbes and inhibit pathogenic microbes. Microbial mapping, an emerging practice, offers insights into microbial hotspots within facilities, resulting in targeted interventions. As the food industry evolves, the intricate understanding and management of MoBE will be pivotal to ensuring optimal food quality, safety, and innovation.


Asunto(s)
Microbiota , Entorno Construido , Carne
9.
Public Health Nutr ; 27(1): e112, 2024 Apr 01.
Artículo en Inglés | MEDLINE | ID: mdl-38557499

RESUMEN

OBJECTIVE: This study aims to determine whether ultra-processed foods (UPFs) are being discussed in news media in Australia and whether this terminology, as described in the NOVA system, is being applied accurately. DESIGN: Interpretive content analysis of online and print media articles that mentioned UPFs from 2009 to 2023 in Australia. SETTING: Australia. PARTICIPANTS: Online and print media articles. RESULTS: A total of two hundred ninety-eight Australian media articles were captured. A substantial increase in the number of UPF articles was observed between 2017-2019 and 2021-2023. The UPF concept was inaccurately explained or defined in 32 % of the articles and was frequently used interchangeably with other descriptors, such as 'highly or heavily processed food', 'junk food', 'unhealthy food', 'packaged food' and 'discretionary food'. Most of the articles had a health focus; however, sustainability interest increased, particularly in the past 18 months. CONCLUSIONS: UPFs are increasingly being discussed in news media in Australia; however, the concept is still incorrectly presented in over a third of articles. This highlights the importance of improving the literacy about UPFs to ensure that messages are communicated in a way that is salient, accessible and accurate.


Asunto(s)
Manipulación de Alimentos , Medios de Comunicación de Masas , Humanos , Australia , Alimentos , Comida Rápida , Dieta
10.
Public Health Nutr ; 27(1): e63, 2024 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-38297466

RESUMEN

OBJECTIVE: To compare the initial and the updated versions of the front-of-pack label Nutri-Score (related to the nutritional content) with the NOVA classification (related to the degree of food processing) at the food level. DESIGN: Using the OpenFoodFacts database - 129,950 food products - we assessed the complementarity between the Nutri-Score (initial and updated) with the NOVA classification through a correspondence analysis. Contingency tables between the two classification systems were used. SETTINGS: The food offer in France. PARTICIPANTS: Not applicable. RESULTS: With both versions (i.e. initial and updated) of the Nutri-Score, the majority of ultra-processed products received medium to poor Nutri-Score ratings (between 77·9 % and 87·5 % of ultra-processed products depending on the version of the algorithm). Overall, the update of the Nutri-Score algorithm led to a reduction in the number of products rated A and B and an increase in the number of products rated D or E for all NOVA categories, with unprocessed foods being the least impacted (-3·8 percentage points (-5·2 %) rated A or B and +1·3 percentage points (+12·9 %) rated D or E) and ultra-processed foods the most impacted (-9·8 percentage points (-43·4 %) rated A or B and +7·8 percentage points (+14·1 %) rated D or E). Among ultra-processed foods rated favourably with the initial Nutri-Score, artificially sweetened beverages, sweetened plant-based drinks and bread products were the most penalised categories by the revision of Nutri-Score while low-sugar flavoured waters, fruit and legume preparations were the least affected. CONCLUSION: These results indicate that the update of the Nutri-Score reinforces its coherence with the NOVA classification, even though both systems measure two distinct health dimensions at the food level.


Asunto(s)
Etiquetado de Alimentos , Edulcorantes , Humanos , Valor Nutritivo , Etiquetado de Alimentos/métodos , Manipulación de Alimentos , Calidad de los Alimentos
11.
Appetite ; : 107615, 2024 Jul 29.
Artículo en Inglés | MEDLINE | ID: mdl-39084349

RESUMEN

Industrial food processing and its possible adverse effects on health are widely debated in scientific literature and media. There is not much known about consumers' attitudes towards the processing of foods. Therefore, a questionnaire (n = 463) was distributed and interviews (n = 11) were conducted with Dutch consumers to evaluate the attitudes and associations towards industrial food processing and to assess opinions about communications on food processing and health. The results showed that 51% of the respondents had a neutral, 23% had a positive, and 26% had a negative attitude towards food processing. Respondents with a background in food by profession or education (n = 159) had more frequently a positive attitude towards food processing (P = 0.008). Respondents and interviewees pointed out both positive and negative associations with industrial processing: additives, artificial, not fresh, low nutritional value, unnatural, but also palatability, food safety, shelf life, and convenience. The questionnaire showed that 70% of the respondents thought food processing had a (slightly) negative health effect. Most interviewees indicated that when doing groceries, food processing per se is not relevant in food choices, although some critically inspected the ingredients. Furthermore, interviewees indicated that communication about food and health is scattered and complex. They would like to gain easy and straightforward information from a central source. From the questionnaire respondents, 60% indicated that they would like to have more information about food processing. In conclusion, most Dutch consumers in this study have a neutral and nuanced attitude towards industrial food processing. A connection with food via profession or education showed a more positive attitude, which may indicate the importance of knowledge and the need for clear communication about nutrition, ingredients, and food processing.

12.
Appetite ; 201: 107613, 2024 Jul 25.
Artículo en Inglés | MEDLINE | ID: mdl-39067483

RESUMEN

Novel applications of nanotechnology in food processing hold tremendous potential to revolutionize the food industry and address challenges in food security and public health. Understanding and addressing consumers' evolving attitudes toward the use of nanotechnology in food processing is important to promote the technology's adoption and inform the development of regulatory frameworks that align with societal values. We used a survey research design to explore U.S. consumers' attitudes toward such uses of nanotechnology. Through the literature, we identified various cognitive and affective factors that have influenced, or have the potential to influence, consumers' attitudes, and we used those factors to develop a comprehensive regression model. We collected data from a national sample of U.S. consumers (N = 1071). The regression model accounted for 64.22% of the variance in attitudes toward nanotechnology (adjusted R2 = 62.94%). Perceived benefits, subjective norms, institutional trust, and subjective knowledge significantly and positively influenced participants' attitudes toward the use of nanotechnology in food processing while perceived risks and food technology neophobia significantly and negatively influenced participants' attitudes. These results suggest that communication strategies should emphasize consumer-centric benefits of nanotechnology, mitigate perceived risks, leverage social influences, and prioritize food safety-related messaging from institutional bodies.

13.
Ecotoxicol Environ Saf ; 277: 116342, 2024 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-38657457

RESUMEN

Pyrethroids (PYs) are widely applied pesticides whose residues pose potential health risks. This review describes current knowledge on PY chemical properties, usage patterns, environmental and food contamination, and human exposure models. It evaluates life cycle assessment (LCA), chemical alternatives assessment (CAA), and high-throughput screening (HTS) as tools for pesticide policy. Despite efforts to mitigate PY presence, their pervasive residues in the environment and food persist. And the highest concentrations ranged from 54,360 to 80,500 ng/L in water samples from agricultural fields. Food processing techniques variably reduce PY levels, yet no method guarantees complete elimination. This review provides insights into the fates and exposure pathways of PY residues in agriculture and food, and highlights the necessity for improved PY management and alternative practices to safeguard health and environment.


Asunto(s)
Contaminación de Alimentos , Residuos de Plaguicidas , Piretrinas , Humanos , Agricultura , Exposición a Riesgos Ambientales/análisis , Monitoreo del Ambiente , Contaminación de Alimentos/análisis , Residuos de Plaguicidas/análisis , Piretrinas/análisis , Piretrinas/toxicidad , Medición de Riesgo , Contaminantes Químicos del Agua/análisis
14.
Foodborne Pathog Dis ; 2024 Jul 04.
Artículo en Inglés | MEDLINE | ID: mdl-38963774

RESUMEN

Multilocus variable number tandem repeat analysis (MLVA) is a molecular subtyping technique that remains useful for those without the resources to access whole genome sequencing for the tracking and tracing of bacterial contaminants. Unlike techniques such as multilocus sequence typing (MLST) and pulsed-field gel electrophoresis, MLVA did not emerge as a standardized subtyping method for Listeria monocytogenes, and as a result, there is no reference database of virulent or food-associated MLVA subtypes as there is for MLST-based clonal complexes (CCs). Having previously shown the close congruence of a 5-loci MLVA scheme with MLST, a predictive model was created using the XGBoost machine learning (ML) technique, which enabled the prediction of CCs from MLVA patterns with ∼85% (±4%) accuracy. As well as validating the model on existing data, a straightforward update protocol was simulated for if and when previously unseen subtypes might arise. This article illustrates how ML techniques can be applied with elementary coding skills to add value to previous-generation molecular subtyping data in-built food processing environments.

15.
Int J Food Sci Nutr ; 75(2): 148-158, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38186325

RESUMEN

An increased consumption of ultra-processed foods (UPF) leads to a rising prevalence of chronic noncommunicable diseases. This study aims to characterise the nutrient profile of white-label pre-packaged foods and bakery products available in a market leader Portuguese food retail chain, according to the extent of processing proposed by NOVA classification system. The nutrient profile (energy, sugar, total fat, saturated fat and sodium) according to processing degree was analysed using non-parametric tests. UPF were the most energy dense (278 kcal/100 g, p < .001) and the highest in sugar (15.9 g/100 g, p < .001). Processed foods were the highest in sodium (538 mg/100 g, p < .001). Processed and UPF showed significantly higher total (12.4 and 10.8 g/100 g, respectively) and saturated fat content (6.10 and 4.61 g/100 g, respectively) than unprocessed/minimally processed foods (p < .001). Regarding the variation of the nutritional value across the extent of processing, different results were observed for some categories suggesting the importance of a stratified analysis. The consumption of less processed foods and the manufacture of processed/UPF with better nutrient profile should be promoted.


Asunto(s)
Dieta , Ingestión de Energía , Manipulación de Alimentos/métodos , Comida Rápida , Nutrientes , Carbohidratos , Ácidos Grasos , Azúcares , Sodio
16.
Food Qual Prefer ; 1172024 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-38706540

RESUMEN

Despite the impact of processed foods on health, sustainability, and food security, consumers vary greatly in expectations about and preferences for processed foods. Essentialism is the lay belief that items in a category share a fundamental and immutable essence that generates the category's defining characteristics. Although essentialism may be an important determinant of consumers' cognitions about processed foods, there has been limited investigation of essentialism's role in food-related perceptions. Across two studies (n=598 total), we used a novel measure of food essentialism to examine whether individual differences in beliefs about foods as having essences (food essentialism) are related to perceptions of foods retaining more of their natural characteristics (sensory and nutritive properties) despite their level of processing. Across diverse food categories (meats, vegetables, fruits, legumes, dairy), higher levels of perceived food processing were associated with lower perceived retention of naturalness, nutritiousness, natural taste, functional post-ingestive benefits, and acceptability (liking). However, participants endorsing greater (vs. lower) food essentialism beliefs exhibited weaker relationships between perceived processing and these characteristics. We also observed variations across food categories in relationships between perceived level of processing and food properties, suggesting that some foods (i.e., milk-based products) are perceived to possess essences that are more robust despite undergoing higher levels of processing. These findings demonstrate that food-specific essentialism beliefs may be a fundamental determinant of consumers' expectations of how human intervention, such as processing, affects natural properties of foods. These beliefs may be a promising target for future research to shift consumer acceptance of processed foods.

17.
J Sci Food Agric ; 104(5): 2535-2550, 2024 Mar 30.
Artículo en Inglés | MEDLINE | ID: mdl-38318731

RESUMEN

Phenolic compounds have recently become one of the most interesting topics in different research areas, especially in food science and nutrition due to their health-promoting effects. Phenolic compounds are found together with macronutrients and micronutrients in foods and within several food systems. The coexistence of phenolics and other food components can lead to their interaction resulting in complex formation. This review article aims to cover the effects of thermal and non-thermal processing techniques on the protein-phenolic interaction especially focusing on the content and digestibility of phenolics by discussing recently published research articles. It is clear that the processing conditions and individual properties of phenolics and proteins are the most effective factors in the final content and intestinal fates of phenolic compounds. Besides, thermal and non-thermal treatments, such as high-pressure processing, pulsed electric field, cold plasma, ultrasonication, and fermentation may induce alterations  in those interactions. Still, new investigations are required for different food processing treatments by using a wide range of food products to enlighten new functional and healthier food product design, to provide the optimized processing conditions of foods for obtaining better quality, higher nutritional properties, and health benefits. © 2024 Society of Chemical Industry.


Asunto(s)
Manipulación de Alimentos , Fenoles , Manipulación de Alimentos/métodos , Fenoles/química , Antioxidantes/química
18.
J Sci Food Agric ; 104(6): 3585-3593, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38150581

RESUMEN

BACKGROUND: Modified polysaccharides have greatly expanded applications in comparison with native polysaccharides due to their improved compatibility and interactions with proteins and active compounds in food-related areas. Nonetheless, there is a noticeable dearth of research concerning the utilization of carboxymethyl starch (CMS) as a microcapsule wall material in food processing, despite its common use in pharmaceutical delivery. The development of an economical and safe embedding carrier using CMS and gelatin (GE) holds immense importance within the food-processing industry. In this work, the potential of innovative coacervates formed by the combination of GE and CMS as a reliable, stable, and biodegradable embedding carrier is evaluated by turbidity measurements, thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, and rheological measurements. RESULTS: The results indicate that GE-CMS coacervates primarily resulted from electrostatic interactions and hydrogen bonding. The optimal coacervation was observed at pH 4.6 and with a GE/CMS blend ratio of 3:1 (w/w). However, the addition of NaCl reduced coacervation and made it less sensitive to temperature changes (35-55 °C). In comparison with individual GE or CMS, the coacervates exhibited higher thermal stability, as shown by TGA. X-ray diffraction analysis shows that the GE-CMS coacervates maintained an amorphous structure. Rheological testing reveals that the GE-CMS coacervates exhibited shear-thinning behavior and gel-like properties. CONCLUSION: Overall, attaining electroneutrality in the mixture boosts the formation of a denser structure and enhances rheological properties, leading to promising applications in food, biomaterials, cosmetics, and pharmaceutical products. © 2023 Society of Chemical Industry.


Asunto(s)
Gelatina , Polisacáridos , Almidón/análogos & derivados , Gelatina/química , Polisacáridos/química , Proteínas
19.
Compr Rev Food Sci Food Saf ; 23(3): e13348, 2024 05.
Artículo en Inglés | MEDLINE | ID: mdl-38720587

RESUMEN

Listeria monocytogenes biofilms formed on food-contact surfaces within food-processing facilities pose a significant challenge, serving as persistent sources of cross-contamination. In this review, we examined documented cases of foodborne outbreaks and recalls linked to L. monocytogenes contamination on equipment surfaces and in the food production environment, provided an overview of the prevalence and persistence of L. monocytogenes in different food-processing facilities, and discussed environmental factors influencing its biofilm formation. We further delved into antimicrobial interventions, such as chemical sanitizers, thermal treatments, biological control, physical treatment, and other approaches for controlling L. monocytogenes biofilms on food-contact surfaces. This review provides valuable insights into the persistent challenge of L. monocytogenes biofilms in food processing, offering a foundation for future research and practical strategies to enhance food safety.


Asunto(s)
Biopelículas , Microbiología de Alimentos , Listeria monocytogenes , Listeria monocytogenes/fisiología , Biopelículas/crecimiento & desarrollo , Manipulación de Alimentos/métodos , Contaminación de Alimentos/prevención & control , Contaminación de Equipos/prevención & control
20.
Compr Rev Food Sci Food Saf ; 23(2): e13304, 2024 03.
Artículo en Inglés | MEDLINE | ID: mdl-38343296

RESUMEN

Mangoes (Mangifera indica) are widely prized for their abundant nutritional content and variety of beneficial bioactive compounds and are popularly utilized in various foods, pharmaceuticals, and cosmetics industries. However, it is important to note that certain proteins present in mango can trigger various allergic reactions, ranging from mild oral allergy syndrome to severe life-threatening anaphylaxis. The immunoglobulin E-mediated hypersensitivity of mango is mainly associated with three major allergenic proteins: Man i 1 (class IV chitinase), Man i 2 (pathogenesis-related-10 protein; Bet v 1-related protein), and Man i 4 (profilin). Food processing techniques can significantly affect the structure of mango allergens, reducing their potential to cause allergies. However, it is worth mentioning that complete elimination of mango allergen immunoreactivity has not been achieved. The protection of individuals sensitized to mango should be carefully managed through an avoidance diet, immediate medical care, and long-term oral immunotherapy. This review covers various aspects related to mango allergy, including prevalence, pathogenesis, symptoms, and diagnosis. Furthermore, the characterization of mango allergens and their potential cross-reactivity with other fruits, vegetables, plant pollen, and seeds were discussed. The review also highlights the effects of food processing on mango and emphasizes the available strategies for managing mango allergy.


Asunto(s)
Hipersensibilidad a los Alimentos , Mangifera , Humanos , Alérgenos/efectos adversos , Relevancia Clínica , Hipersensibilidad a los Alimentos/diagnóstico , Hipersensibilidad a los Alimentos/epidemiología , Hipersensibilidad a los Alimentos/etiología , Polen
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