Objective: This study provides a multivariate analysis of the availability of food store outlets in the US and associations with neighborhood characteristics on race, ethnicity and socioeconomic status (SES).
Method: Commercial food store outlet data are linked across 28,050 zip codes to Census 2000 data. Multivariate regression analyses are used to examine associations between the availability of chain supermarkets, non-chain supermarkets, grocery stores and convenience stores and neighborhood characteristics on race, ethnicity and SES including additional controls for population size, urbanization and region.
Results: Low-income neighborhoods have fewer chain supermarkets with only 75% (p<0.01) of that available in middle-income neighborhoods. Even after controlling for income and other covariates, the availability of chain supermarkets in African American neighborhoods is only 52% (p<0.01) of that in White neighborhoods with even less relative availability in urban areas. Hispanic neighborhoods have only 32% (p<0.01) as many chain supermarkets compared to non-Hispanic neighborhoods. Non-chain supermarkets and grocery stores are more prevalent in low-income and minority neighborhoods.
Conclusion: The study results highlight the importance of various potential public policy measures for improving access to supermarkets that may serve to reduce systematic local area barriers that are shown to exist by race, ethnicity and income.
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http://dx.doi.org/10.1016/j.ypmed.2006.08.008 | DOI Listing |
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January 2025
Department of Nanoscience, Joint School of Nanoscience and Nanoengineering, University of North Carolina at Greensboro, Greensboro, NC, 27401, USA.
The chemistry of the extracellular electron transfer (EET) process in microorganisms can be understood by interfacing them with abiotic materials that act as external redox mediators. These mediators capture and transfer extracellular electrons through redox reactions, bridging the microorganism and the electrode surface. Understanding this charge transfer process is essential for designing biocapacitors capable of modulating and storing charge signatures as capacitance at the electrode interface.
View Article and Find Full Text PDFJ Food Sci
January 2025
Instituto Multidisciplinario de Biología Vegetal (IMBIV), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Córdoba, Argentina.
This study evaluates the microencapsulation of peanut skin phenolic compounds by spray drying, assessing their physicochemical properties and storage stability and the protective effect against oxidative deterioration in walnut kernels. Extraction yield, total phenolic content, and HPLC-ESI-MS/MS analysis were performed on peanut skin crude extract (PCE). Microencapsulation of PCE with 10%, 20%, and 30% maltodextrin via spray drying was conducted.
View Article and Find Full Text PDFJ Food Sci
January 2025
Department of Food Science & Technology, Faculty of Science, National University of Singapore, Singapore, Singapore.
Fresh-cut cantaloupes are highly susceptible to contamination by foodborne pathogens and spoilage-causing microorganisms. This study evaluated the efficacy of a probiotic coating produced by fermenting Lactiplantibacillus plantarum 299 V in pomelo peel extract in combination with vacuum packaging in controlling the microbial loads of fresh-cut cantaloupe during storage. As temperature abuse is common in transportation and at retail sale of such products in many countries, we evaluated their efficacy at different temperatures.
View Article and Find Full Text PDFJ Food Sci
January 2025
Department of Food Science and Technology, National University of Singapore, Singapore, Singapore.
This study compared the antimicrobial activity of several essential oils (EOs) vapor against food spoilage microbiota and further investigated the potential of EO vapor in extending the shelf life of leafy green vegetables. Oregano EO vapor showed stronger antimicrobial activities than basil and clove EO vapors against common spoilage-causing microorganisms in fresh produce, including Pantoea agglomerans, Pseudomonas cichorii, Pectobacterium carotovorum, Pantoea ananatis, Pseudomonas marginalis, Alterneria bassicicola, and Botrytis cinerea. When oregano EO vapor was applied to leafy greens, phytotoxic effects were observed on butter lettuce and iceberg lettuce but not on kai lan and kale.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; National Research and Development Branch Center for Shellfish Processing (Zhanjiang), Zhanjiang 524088, China; Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Engineering Technology Research Center of Seafood, Zhanjiang 524088, China. Electronic address:
This study investigated the structural characteristics of an acidic polysaccharide (SCP-B) isolated from scagassum and the use of SCP-B coatings to enhance the quality and shelf life of golden pompano fillets. The results indicated that the main glucoside bond structure of SCP-B was →3)-α-Fucp-(1 → 4)-β-ManA-(1 → 3)-α-GulA-(1→, whereas the terminal residues of β-ManA-(1 → and α-Fucp-(1 → linked to O-2 of →2,3)-β-Fucp-(1→, and α-GulA-(1 → linked to O-2 of →2,3)-α-GulA-(1→. When the SCP-B concentration reached 3.
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