Sustainable diet policy development: implications of multi-criteria and other approaches, 2008-2017

The objective of the present paper is to draw lessons from policy development on sustainable diets. It considers the emergence of sustainable diets as a policy issue and reviews the environmental challenge to nutrition science as to what a 'good' diet is for contemporary policy. It explores the variations in how sustainable diets have been approached by policy-makers. The paper considers how international United Nations and European Union (EU) policy engagement now centres on the 2015 Sustainable Development Goals and Paris Climate Change Accord, which require changes across food systems. The paper outlines national sustainable diet policy in various countries: Australia, Brazil, France, the Netherlands, Qatar, Sweden, UK and USA. While no overarching common framework for sustainable diets has appeared, a policy typology of lessons for sustainable diets is proposed, differentiating (a) orientation and focus, (b) engagement styles and (c) modes of leadership. The paper considers the particularly tortuous rise and fall of UK governmental interest in sustainable diet advice. Initial engagement in the 2000s turned to disengagement in the 2010s, yet some advice has emerged. The 2016 referendum to leave the EU has created a new period of policy uncertainty for the UK food system. This might marginalise attempts to generate sustainable diet advice, but could also be an opportunity for sustainable diets to be a goal for a sustainable UK food system. The role of nutritionists and other food science professions will be significant in this period of policy flux

Concentration of Hot Water Extracts of Anthocyanins obtained from Muscadine Grape Pomace using Membrane-Osmotic Distillation

Anthocyanins are well known for their health-promoting benefits. The goal of this study was to evaluate a distillation-based membrane technology to concentrate aqueous anthocyanins extracted from muscadine grape pomace using polypropylene (PP) or ethylene chlorotrifluoroethylene (ECTFE) membranes. A hot water extraction method was utilized to extract the anthocyanins from the pomace. A pre-experimental run using DI water as feed was conducted to optimize the NaCl brine concentration for osmotic distillation and it was determined that 4M was the optimal concentration. The aqueous anthocyanins extraction was filtrated through a series of filter of different pore sizes before the distillation process. Membrane distillation (MD), osmotic distillation (OD), and membrane osmotic distillation (OMD) were all carried out over a 6-hour period to determine the optimal distillation process. Among the three processes, OMD demonstrated the highest permeate flux value, therefore, it was utilized to conduct the concentration using either PP or ECTFE membranes. The anthocyanins contents before and after the concentration process were measured by High Performance Liquid Chromatography machine. The result shows that OMD paired with ECTFE membrane concentrated the aqueous anthocyanins up to 196% but OMD with PP membrane exhibited a better performance. Concentrating the aqueous anthocyanin extract 280% over a 12-hour period. In addition, the quality of the concentrate was also investigated in terms of NaCl transferring across the membrane to the feed solution. only 0.02% - 0.03% of NaCl was transferred across the membrane to the feed side, indicating it is feasible to obtain concentrated anthocyanin extracts with low salt concentratio

Evaluating Consumer Sensory and Composition Attributes of Arkansas-Grown Fresh-Market Blackberries

Blackberries are grown worldwide for commercial fresh markets. Three Arkansas-grown fresh-market blackberry genotypes (‘Natchez’, ‘Ouachita’, and A-2418) were evaluated for consumer sensory and compositional attributes at the University of Arkansas Food Science Department, Fayetteville. The compositional attributes of the blackberries were within an acceptable range for commercial markets (soluble solids=8.20-11.90%, pH=2.79-3.18, titratable acidity=1.09-1.32%). In terms of soluble solids to titratable acidity ratio, ‘Ouachita’ (10.92) had the highest ratio, followed by ‘Natchez’ (8.93) and A-2418 (6.25). A consumer sensory panel (n=80) evaluated fresh-market blackberry attributes using a 9-point hedonic scale for overall impression, overall flavor, sweetness, and sourness and a 5-point Just-about-Right (JAR) scale for sweetness and sourness. The participants also ranked the blackberries in order of overall liking from most to least liked. For overall impression, overall flavor, and sweetness, ‘Natchez’ scored higher than ‘Ouachita’ and A-2418, but the panelists did not detect differences in sourness. In terms of JAR for sweetness, 64% of consumers scored ‘Natchez’ JAR, followed by ‘Ouachita’ (39%) and A-2418 (34%). Whereas, 42% percent found A-2418 “Too Sour”, followed by ‘Ouachita (33%) and ‘Natchez’ (25%). In terms of ranking the blackberries, ‘Natchez’ was the most liked blackberry followed by ‘Ouachita’ and A-2418. When looking only at blackberries ranked first, 53% of consumers ranked ‘Natchez’ as their most liked berry, compared to A-2418 (26%) and ‘Ouachita’ (21%). The results from this research suggested that fresh-market blackberries with medium-level sweetness to sourness ratios were preferred though more consumers than expected preferred the blackberries with the more extreme ratios

Farmers Markets and the Local Food System: The Case of Gettysburg, Pennsylvania

In order to examine and obtain a better understanding of the local food system within Adams County, Pennsylvania, this study explores the characteristics and perspectives of the customers and vendors at the farmers markets in Gettysburg, Pennsylvania. Survey findings from the Gettysburg Farmers Market and the three Adams County Farmers Markets include customer demographic information, perspectives and shopping behavior as well as vendor product information, farm size and location and preference for market management. Introductory background information on the Farm Bill and the influence of agricultural practices on the environment, human health and nutrition and the relationship between farmers markets and the local economy are offered in order to emphasize the value of a well-managed local food system. Conclusions provide evidence that lower income and lower education levels are not sufficiently represented at all the markets and food stamp programs are being underutilized. This study suggests employing additional marketing to target underrepresented demographic groups, public transportation to potentially inaccessible market locations and increased advertisement and encouragement of food stamp programs at all markets in order to expand the customer base and increase access to healthy, local foods for less advantaged citizens. The results from this study are intended to offer evidence that will promote and facilitate market management, strengthen customer/vendor relationships and encourage better ties between the local community and local food systems at the farmers markets within Gettysburg in Adams County, Pennsylvania

Characterization of Jasmine Rice Cultivars Grown in the United States

Jasmine rice from Thailand accounts for about 60-70% of U.S. imported rice, primarily due to its preference by ethnic Asians as well as general American population. Recently new U.S. jasmine rice cultivars have been developed independently at three rice research stations in Arkansas, California, and Louisiana, but their properties have not been characterized. The objective of this research was to characterize and compare the physical appearance, chemical composition, thermal and pasting properties, cooked rice texture and starch structures of the newly-developed U.S. jasmine rice from Arkansas, California and Louisiana, to be compared with jasmine rice samples from Thailand. In general, the U.S. varieties had smaller length/width ratios, darker color, and greater ash and lipid contents than the Thai controls. The Arkansas samples were similar to each other as well as one Louisiana sample, CLJ01 2017, and the other Louisiana samples were similar to each other, but rice of both origins were different from Thai jasmine. Calaroma-201 was found to be the most similar to the Thai jasmine rice out of the U.S. varieties from Ward’s hierarchical cluster analysis of all attributes. These findings can help the U.S. rice industry to develop U.S. jasmine rice cultivars closer to Thai jasmine rice

Our door is always open : Aligning Literacy LearningPractices in Writing Programs and Residential LearningCommunities

Writing studies has considered college students\u27 literacy development as a chronological progression and as influenced by their off-campus connections to various cultural and professional communities. This project considers students\u27 literacy development across disciplines and university activity systems in which they\u27re simultaneously involved to look at the (missed) opportunities for fostering transfer across writing courses and residential learning communities as parallel—but rarely coordinated—high-impact practices. Rather than calling for the development of additional programs, I argue for building/strengthening connections between these existing programs by highlighting shared learning outcomes focused on literacy skills development and learning how to learn

Got Controversy - Milk Does

This article analyzes ongoing controversy over how to best label rBST-free milk. Recombinant bovine somatotropin is a genetically engineered drug administered by some farmers to their dairy herds to increase milk production. FDA first approved its use in 1994, despite great controversy. The FDA also issued labeling guidelines that allowed voluntary disclosure of rBST-free milk, so long as it carried the disclaimer that no difference could be detected between milk produced with rBST and rBST-free. The controversy continues today as consumers express a preference for rBST-free milk and many rBST-free producers label their milk this way. Conventional milk (with rBST) is viewed by the FDA as materially the same as rBST-free. So, conventional producers have continually challenged marketing that is meant to convey rBST free milk is superior or more nutritious. This article specifically analyzes the recent activities surrounding rBST - an FTC petition, an FDA petition to withdraw rBST approval, and several states\u27 rulemaking and legislation to tighten rBST-free labeling. One of the state\u27s rules has also spawned federal litigation. The article recommends that stakeholders must generate consumer survey data to understand the effect of rBST labels on consumers, and then use that data to design better milk labels

Project OASIS: Optimizing Aquaponic Systems to Improve Sustainability

Started in Fall 2015, Project OASIS (Optimizing Aquaponic Systems to Improve Sustainability) is an interdisciplinary capstone project with the goal of designing a sustainable and affordable small-scale aquaponic system for use in developing nations to tackle the problems of malnutrition and food insecurity. Aquaponics is a symbiotic relationship between fish and vegetables growing together in a recirculating system. The project’s goals were to minimize energy consumption and construction costs while using universally available materials. The computational fluid dynamics (CFD) software OpenFOAM was used to create transient and steady-state models of fish tanks to visualize velocity profiles, streamlines, and particle movement. CFD and small scale experiments showed vertical manifolds were more efficient than horizontal inlets. The components’ layout was analyzed to minimize head losses and airlifts were used instead of traditional water pumps. Full-scale research and traditional systems were constructed for side-by-side comparison of biological and energy factors. Flow improvements and use of air-lift pumps dropped energy consumption 40% when compared to a traditional system of the same size. Using local and recycled materials where possible decreased the cost of the UNH pilot system by 27%. The team also partnered with Forjando Alas, a non-profit in Uvita, Costa Rica. During a January 2016 assessment trip, four members spent a week gathering data and building relationships with the community to develop a user-centered design. Project OASIS also successfully competed in two entrepreneurship competitions this year

The New England Food System in 2060: Envisioning Tomorrow\u27s Policy through Today\u27s Assessments

This Essay analyzes how the New England states\u27 planning processes are envisioning revitalized local, state, and regional food systems. This Essay has five parts. First, it begins with examining compelling reasons for promoting more sustainable food systems based on national and global trends, and identifies strategies for promoting regional food systems approaches with a brief introduction to the major influences on the national and New England food system. Second, it describes the states\u27 planning efforts and their enabling legislation or source of authority. The Essay then introduces the New England Food Vision 2060 (the Vision) an emerging discussion of food system possibilities that models potential food production options for the region based on different food based scenarios. The Vision is not a plan or prescription for each state, but rather serves to generate critical thought regarding the direction and aspirations for regional food systems. Likewise, given the goal to have ongoing updates of the Vision, this project will likewise be influenced by individual state plans and strategies. Thus, the Vision represents an opportunity for continuous dynamic interchange among those committed to designing and developing a New England food system Learning Action Network. By applying “collective impact” strategies to food system advancement, the network will be poised to advance regional food justice, food policy access, and system sustainability (i.e., good food). Next, the Essay analyzes the key policy challenges that are presented by a desire for a more self-sufficient regional food system, such as local ordinances, land use and zoning laws, institutional procurement policy, and food access issues. This section offers a brief overview of how the Federal commerce clause (including the dormant commerce clause), and compact clause influence the scope of local, state, and regional policy. Finally, the paper concludes by identifying how the Vision can assist in identifying legal issues that researchers and scholars should focus on when engaging in food system planning now and in the future. This interdisciplinary Essay challenges readers to think critically, and across traditional doctrinal and disciplinary barriers, about the possibilities for New England\u27s “good food” future