Browsing by Subject "Produce"

Now showing 1 - 2 of 2
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    Farm to Fridge: The Exploration of Postharvest Refrigeration Needs and Opportunities Among Minnesota Produce Farmers and Rural Grocery Stores
    (2023-12) Olive, Ren
    To grow more farms and support local food systems the infrastructure needs of beginning and small/mid-size farmers warrants attention. Postharvest refrigeration is known to provide benefits to farmers, buyers, and consumers via improved food safety, longer sales windows, and reduced food waste. This research explores the feasibility of a "farm-to-fridge" model, exploring the potential for produce farmers to lease or rent existing cold storage space in rural grocery stores situated in communities with populations of less than 2,500. To fill gaps in knowledge, the cold storage and refrigeration needs of a sample of beginning and small/mid-size Minnesota produce farmers and the availability of cold storage in rural grocery stores are assessed. Cold storage is positioned within the broader context of infrastructure and critical support for local food system development through a concise overview of U.S. local food system development. Data collection methods used include a survey of 78 Minnesota produce farmers, interviews with four beginning produce farmers, and a survey of 138 rural grocery stores (located in communities with less than 2,500 people). Results show that while a desire for increased cold storage is clearly articulated by both beginning and seasoned Minnesota produce farmers, surveyed farmers and grocers were less certain about using shared cold storage space through the “farm to fridge” model due to limitations in space at the stores and logistical barriers. This research utilizes a mixed method approach and applies the framework of sustainability (or the nexus of prosperous community, economics, and environment) to analyze findings from data collection. Three themes of analysis emerged, which include the impact of refrigeration on perceived business success as it relates to 1) Social/Community: Lifestyle and Interactions with the Community, 2) Economics: Profitability of the Farm, and 3) Environment: Farm Practices and Food Waste. Recommended areas for future research and action are outlined into three categories that include changes in public funded programs, building trust between Extension and beginning and small/mid-size produce farmers, and strengthening buying relationships between produce farmers and rural grocery stores.
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    Produce Safety in the United States: Epidemiological Trends and Risk Management Utilizing a Novel Screening Method for Shiga-Toxin Producing E. coli and Salmonella in Irrigation Water
    (2019-12) Wu, Yan
    Despite significantly improved technologies in food science and public health and tremendous efforts being put by governments to ensure food safety, foodborne outbreaks are still abundant worldwide. Produce products have been frequently implicated in foodborne illness outbreaks in recent years due to changes in consumer demands, consumption habits and production practices. A better understanding on epidemiology changes of produce outbreaks is needed to evaluate current risks associated with produce supply chain and to understand safety regulations regarding produce safety. In addition, it is evident that water used in produce production plays an important role in potentially introducing microbial contaminations. Therefore, its risk management is crucial for safety assurance of the produce supply chain. The goal of this thesis research is to analyze the epidemiological trends of produce outbreaks and to improve the risk management of microbial quality of irrigation water. It summarizes the changing epidemiology of produce outbreaks in the United States from 1998-2007, establishes the baseline to further evaluate the potential impact from the recently implemented Food Safety Modernization Act (FSMA). The study also describes the development, optimization, and evaluation of a novel selective medium for sensitive enrichment and screening of Shiga-toxin producing E. coli and Salmonella in irrigation water. The developed enrichment-indicator system meets the increasing demand of method for multi-pathogen enrichment and detection in a single assay format allowing cost effective detection of STEC and Salmonella within 24 hours.