Wednesday, February 12, 2025

 

Barbeque and grandma’s cookies: New study looks at nostalgia, comfort in food preparation for older adults




Washington State University





PULLMAN, Wash. — Foods that evoke a sense of nostalgia and comfort and have good texture variety are important considerations in prepared meals aimed at older adults, according to new Washington State University research.

“We want to help the prepared food industry produce appetizing, healthy meals for older adults,” said Carolyn Ross, professor in WSU’s School of Food Science. “Malnutrition is quite prevalent in people over 60 because food may be available, but they won’t eat it if they don’t like it. We want to walk a line where food is tasty, convenient, and full of nutrients.”

In a paper recently published in the Journal of Food Science, Ross and her team developed desirable and nutritious dairy-rich breakfasts and desserts for older adults, defined as anyone over age 60. They asked 81 people, with an average age of 71, to taste two breakfast meals and two desserts. Scientists then asked a series of questions about the meals and individual eating habits.

Food-related nostalgia may be difficult to measure, but it showed up in many responses, Ross said.

“We asked what people thought about when it came to food and nostalgia,” she said. “Many responses were tied to a person, like their grandmother’s cookies. If a product evoked more nostalgia, then we found that they liked it more.”

Many responses to the nostalgia question revolved around barbeque, which stood out to Ross because nostalgia is so personal.

“I was surprised by the importance of comfort and nostalgia,” she said. “Those terms are tricky to describe, but it’s one of those ‘you know it when you see it’ things. We’re working now to hone down how people define those terms so we can help make more foods that appeal to this age range.”

Ross said she’s hoping to work with prepared food manufacturers to design foods specifically for older adults who want convenient but nutritious meals that they will enjoy.

“This is a huge and growing population,” she said. “We want to help keep them healthy and happy for a long time.”

Studying food nostalgia is a newer avenue of food science work, Ross said, but examining comfort food is a bit more established. Preference can vary widely due to cultural differences. In this study, whenever people labeled something as a comfort food, they liked it more. One ingredient was commonly placed in the comfort category: cheese.

“Participants’ perceived comfort level decreased if we decreased the flavor level,” Ross said. “That really stood out with cheese; when the participants said there wasn’t enough cheese flavor in the meal, then the comfort associated with the meal decreased. Cheese seems to mean comfort.”

The research team also found that food texture is important, which is not a new conclusion. Texture can have a significant impact on whether people will eat something.

“It’s not one specific texture or textures that matter, it’s a variety of textures,” Ross said. “Having a diet with a lot of texture variety, including textures like crispy and firm, along with soft and creamy foods, really stood out. And for older adults, who may not be able to eat the same firm and crispy foods they once could, keeping as much texture variety as possible is still important.”

In future studies, Ross hopes to look more at flavor and other specific meal attributes that increase comfort.

 

The political consequences of undocumented residents in the US census




PNAS Nexus
House representatives map 

image: 

Change in Apportionment if Undocumented Residents Were Removed from Census Data Used for Apportionment, 1980-2020.

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Credit: Warren & Warren





In recent years, some public figures have argued that undocumented residents in the United States should not be included in census data used for congressional apportionment because their inclusion unfairly benefits Democratic-leaning states. John Robert Warren and Robert E. Warren analyzed data from every census from 1980 through 2020 and used high quality state-level estimates of the size of the undocumented resident population at each time point. The authors then calculated how many House seats and how many Electoral College votes would have changed had undocumented residents been excluded from the data after each census. Previous efforts to address this question used projected rather than actual estimates and only considered the 2020 census. Using actual data from 1980–2020, the authors find that no more than five House seats or Electoral College votes would have switched states in any year if undocumented residents were removed and there were no years in which party control of the House or the outcome of a presidential election would have meaningfully changed. In general, removing undocumented residents from census data used for apportionment would have had a trivial impact on party representation in the House or the outcome of presidential elections and is unlikely to have an increased impact in the future.

 

AMERIKA

Purity and environmental concern


PNAS Nexus




Attitudes about climate change and carbon footprints show strong regional patterning. Farzan Karimi-Malekabadi and colleagues investigated the role of moral values in these geographic patterns. The authors used Moral Foundations Theory, which posits that moral judgements emerge from deeply held intuitions about care, fairness, loyalty, authority, and purity. 

The authors used opinion surveys, comprising 12,061 respondents, conducted from 2008–2013 that measured beliefs regarding the reality, human causation, and negative impacts of climate change, as well as estimates of household carbon footprint provided by UC Berkeley CoolClimate Network. 

This data was compared with 106,465 responses to the Moral Foundations Questionnaire collected between 2012 and 2018, data from presidential elections, and other demographic data. All analyses were conducted at the county-level. 

Counties emphasizing fairness norms had 1.06 times higher odds of favoring green practices. Counties with high levels of education had 1.05 times higher odds of favoring green practices. Counties emphasizing purity norms had 1.02 times higher odds of favoring green practices.  

Among all predictors, a county's political leaning has the strongest influence on the prevalence of green attitudes, with fairness norms ranking as the second strongest predictor. The strongest predictor of household carbon footprint, however, was an emphasis on purity norms, which is often regarded as a conservative value.

 According to the authors, in a liberal context, purity norms may be expressed as an obligation to keep the Earth pure and untainted.

 

Guarding our seafood: innovative strategies against Vibrio parahaemolyticus




Zhejiang University

Integrated Strategies for Detecting, Assessing, and Controlling Vibrio parahaemolyticus in Seafood 

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A systematic framework combining detection methodologies, risk assessment, and control measures for managing Vibrio parahaemolyticus contamination in seafood. The diagram outlines molecular, immunological, and traditional detection techniques, risk evaluation components, and prevention strategies to enhance seafood safety and mitigate public health risks.

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Credit: Food Quality and Safety




A recent research presents a novel approach to managing the risks posed by Vibrio parahaemolyticus, a common yet hazardous foodborne pathogen in seafood. By integrating cutting-edge detection methods, predictive modeling, and risk assessment tools, the study provides a comprehensive framework for monitoring and mitigating health risks, marking a significant leap forward in seafood safety.

Vibrio parahaemolyticus, a prevalent foodborne pathogen, thrives in aquatic environments and seafood, particularly posing risks when consumed raw or undercooked. Known for causing infectious diarrhea globally, this bacterium presents a severe public health threat, with coastal regions being especially vulnerable due to the consumption of contaminated seafood. As the global appetite for seafood grows, concerns over pathogen contamination have intensified. With the growing threat to public health and the challenges in detecting and controlling this pathogen, there is an urgent need for effective, innovative solutions to manage its risks in seafood.

On January 7, 2025, a pioneering study (DOI: 10.1093/fqsafe/fyae051) published in the Food Quality and Safety, supported by Oxford University Press, unveils innovative strategies for mitigating the risks of Vibrio parahaemolyticus in seafood. Conducted by researchers from Shanghai Ocean University, the study offers a thorough analysis of the latest advancements in detection and control methodologies, shaping the future of seafood safety.

The research delves into a variety of detection techniques for Vibrio parahaemolyticus, from traditional culturing methods to cutting-edge molecular techniques such as PCR and LAMP (Loop-Mediated Isothermal Amplification). These methods have advanced considerably, improving the sensitivity and accuracy of pathogen detection. The study also highlights preventive and control measures, spanning physical, chemical, and biological interventions. A key focus of the research is the integration of predictive modeling and risk assessment tools, which provide a systematic approach to estimating health outcomes and guiding food safety management decisions. The authors emphasize the need for further refinement in both detection and risk assessment methodologies to enhance the efficiency of monitoring and controlling V. parahaemolyticus, ultimately improving the safety of seafood and safeguarding consumer health.

Dr. Zhaohuan Zhang, a leading expert from the College of Food Science and Technology at Shanghai Ocean University, stated, “This comprehensive review highlights the crucial role of integrated detection, assessment, and control strategies in boosting seafood safety. The advancements in our study are critical in addressing the persistent challenges posed by V. parahaemolyticus, ensuring safer and higher-quality seafood for consumers.”

The findings from this study have far-reaching implications for the global seafood industry. By adopting the proposed detection and control strategies, stakeholders can significantly reduce the risk of foodborne illnesses, enhancing the safety and quality of seafood products. Beyond contributing to scientific knowledge, the research provides actionable insights for regulatory bodies and food processors, ultimately protecting public health and supporting the sustainability of the seafood industry.

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References

DOI

10.1093/fqsafe/fyae051

Original Source URL

https://doi.org/10.1093/fqsafe/fyae051

Funding information

This work was supported by the Program of Shanghai Academic Research Leader (No.21XD1401200), the Natural Science Foundation of Shanghai Municipality (No.22ZR1427500), and the National Natural Science Foundation of China (No.32372292).

About Food Quality and Safety (FQS)

Food Quality and Safety (FQS) is an open access, international, peer-reviewed journal providing a platform to highlight emerging and innovative science and technology in the agro-food field, publishing up-to-date research in the areas of food quality, food safety, food nutrition and human health. It is covered by SCI-E and the 2023 Impact Factor (IF)=3.0, 5-yr IF=4.7.