Motivation: Detailed empirical work on the impact of the COVID-19 pandemic on food security is scant. Local management of food security has received little attention.
Purpose: This article describes emergency food policies in Wuhan and Nanjing, China during lockdown in 2020 and their implications for household food security in the two cities.
Methods And Approach: Policy documents and background data describe the emergency measures. Online surveys of residents of two Chinese cities were used to gauge household food security.
Findings: Despite the determined efforts of provincial and city governments to ensure that food reached people who were locked down in Wuhan, or subject to restrictions on movement in Nanjing, households experienced some decline in food security. Most households found they could not access their preferred foods. But a minority of households did not get enough to eat.Government had contingency plans for the pandemic that ensured that most people had sufficient, if not preferred, food. But not all households were fully covered.
Policy Implications: A more resilient system of food distribution is needed, including a relatively closed and independent home delivery system. Grassroots organizations such as residential community committees, property management organizations, and spontaneous volunteer groups need to be brought into the management of emergency food provision.
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http://dx.doi.org/10.1111/dpr.12575 | DOI Listing |
Food Chem
December 2024
National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, China Agricultural University, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, Beijing 100193, China; Beijing Key Laboratory of Diagnostic and Traceability Technologies for Food Poisoning, Beijing Center for Disease Prevention and Control, Beijing 100013, China. Electronic address:
Ovalbumin (OVA) is a high-risk allergen with complex tertiary structure in food samples. Here, we developed an accurate UPLC-MS/MS-based assay to improve OVA quantitative performance in processed foods. Full-length isotope-labeled OVA proteins (OVA-I) were synthesized using stable isotope labeling by amino acids in cell culture (SILAC) technique and employed as functional internal standards to ensure similar cleavage sites between internal standards and analytes.
View Article and Find Full Text PDFSci Total Environ
January 2025
Graduate School of Agricultural Science, Tohoku University, Sendai, Japan.
An agrivoltaic system (AVS), wherein crops and electricity are simultaneously produced on the same agricultural land, contributes to renewable energy production and food security. AVS is expected to expand energy production in rural areas; however, its energy balance has not been comprehensively investigated. In this study, the energy balance of an AVS established in 2021 in the paddy fields on Shonai Plain was determined.
View Article and Find Full Text PDFCurr Opin Plant Biol
January 2025
Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331, USA.
Plant diseases constantly threaten crops and food systems, while global connectivity further increases the risks of spreading existing and exotic pathogens. Here, we first explore how an integrative approach involving plant pathway knowledgegraphs, differential gene expression data, and biochemical data informing Raman spectroscopy could be used to detect plant pathways responding to pathogen attacks. The Plant Reactome (https://plantreactome.
View Article and Find Full Text PDFJ Hazard Mater
December 2024
State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
Microplastic pollution seriously affects global agroecosystems, strongly influencing soil processes and crop growth. Microplastics impact could be size-dependent, yet relevant field experiments are scarce. We conducted a field experiment in a soil-maize agroecosystem to assess interactions between microplastic types and sizes.
View Article and Find Full Text PDFJ Agric Food Chem
January 2025
National Key Laboratory of Veterinary Public Health Security, College of Veterinary Medicine, Beijing Key Laboratory of Detection Technology for Animal-Derived Food Safety, and Beijing Laboratory for Food Quality and Safety, China Agricultural University, Beijing 100193, People's Republic of China.
DNA-decorated hapten (DDH)-based immunoassays have emerged, demonstrating supreme advantages in sensing applications because of their excellent sensitivity, specificity, and reliability. DDH combines both a recognition element (hapten) and a signal transduction element (DNA portion) with its highly programmable DNA structure enabling the trigger of signal transduction following a recognition event, thereby introducing a novel signal transduction mechanism to immunoassays. In this review, we provide a critical overview of recent research in the DDH-based immunoassays, which are designed to detect specific small molecules and antibodies.
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