Download or read book Solar Drying to Reduce the Post Harvest Losses of Fruits and Vegetables Experienced by Smallholder Growers in Kenya written by Joseph Kimani Mbugwa and published by . This book was released on 2006 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concentrated Solar Fruit Drying of Tomatoes written by Harold Blake Ringeisen and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Fruits and vegetables are an integral part of the human diet. Many developing countries such as Tanzania experience post-harvest losses of 40%, and there is little ability to preserve and store foods for off-season consumption due to expensive or unreliable energy and a lack of access to refrigeration. Alternatively, fruits and vegetables can be dehydrated using solar crop dryers. Because many developing countries are in tropical regions, properly dehydrating fruits and vegetables to moisture levels appropriate for storage and off-season consumption can be difficult. In an attempt to overcome the challenges of the high humidity, intermittent clouds, and haze often present in tropical climates, this project investigates the effectiveness of adding a concave solar concentrator built from low-cost, locally available materials to a typical Tanzanian solar crop dryer. Two identical solar crop dryers were constructed, with one serving as the control and the other for testing the solar concentrator. Drying trials using Roma tomatoes with initial moisture content of approximately 90% were conducted in Davis, California (38° 32' 42" N / 121° 44' 21" W) in various climatic conditions throughout the summer and fall. Tomatoes were considered dried at 10% moisture content. Temperature, relative humidity, and solar radiation were measured outside as well as within each of the dryers to determine how the addition of a solar concentrator can affect the drying rate of tomatoes in solar crop dryers. The concentrator proved to be effective, reducing drying time by 21% in addition to increasing internal dryer temperature and reducing relative humidity. An additional study on the quality of the fresh and dried tomatoes found that the pH, titratable acidity, color, Brix, lycopene, and vitamin C determined there was no significant difference in quality between tomatoes dried with or without the concentrator.
Download or read book Transformative Food Value Chains for Local Development written by Silke Maria Stöber and published by Frontiers Media SA. This book was released on 2024-01-26 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the capacity of food systems to undertake a transformation towards sustainability requires understanding how resources stream in and out of the systems. As complex socio-economic structures, food and agricultural value chains are important means for channeling resources, knowledge, and agency in and out of rural areas. Given their prominent role on the development agendas, there is mixed evidence as to what extent value chains and their actors can contribute to improving the livelihoods in poor rural and urban areas. In order to shape sustainable living places, transformative capacities and good governance are important mainstays. Transformative agri-food value chains are robust and often act as the sole transmission belt for returning capital, resources and identity back into vulnerable areas. Moreover, domestic or regional chains may provide urban consumers with fresh quality food that also contributes to regional identity.
Download or read book Producing Solar Dried Fruit and Vegetables for Micro and Small Scale Rural Enterprise Development written by A. Brett and published by . This book was released on 1996-01 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The drying of food and crops remains the most commonly used preservation method world-wide and the drying of small quantities of higher valued foods, in particular, has the most potential for generation of income in the rural areas in developing countries. This series of handbooks is intended as a practical guide to solar drying operations as micro- and small-scale enterprise opportunities.
Download or read book A Review of Solar Drying of Fruit Vegetables and Other Food Crops written by Robert James Fuller and published by . This book was released on 1997 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Drying for Tomatoes in Rural Developing Areas written by Tendai Chitewere and published by . This book was released on 1997 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Drying written by International Labour Office and published by . This book was released on 1986 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This training manual is the outcome of an ILO regional project on the development and application of appropriate food-processing technologies. During the project, extension workers from four developing Arab countries were trained in techniques of sun and solar drying. The manual provides clear and detailed information on the basic theory and practice of sun and solar drying of various food products (fish, fruit, vegetables and grains). It discusses the type of information needed to determine whether solar drying is feasible and appropriate in particular cases, and, with an explanation of how the sun's energy can be harnessed, outlines basic drying theory. Several different types of dryers - cabinet, tent, paddy, hybrid - are described and some guidance is given on their construction. Information is also provided on the preparation of the raw materials before they are dried and on packaging techniques for the dried product. It is hoped that agronomists, technologists and rural development trainers will use the information to encourage farmers and rural artisans to adopt these food-processing techniques.
Download or read book From Supo to Chimney Dryer written by Lauren Lin Howe and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Solar drying can reduce fruit and vegetable losses and increase availability for farmers who produce surplus but lack storage. While traditional sun drying in Nepal uses bamboo (e.g. supo), improved solar dryers like the chimney dryer are more efficient and hygienic. This project assessed if the chimney dryer is an appropriate and beneficial technology for reducing food loss to disseminate to farmers, especially women, in Dadeldhura district, Nepal. In this study, appropriate was defined as relevant, affordable, locally available, and user-friendly, while benefits were assessed in terms of food availability, quality and safety; time and labor; and income. Using a convergent mixed methods approach, I constructed three chimney dryers, conducted focus group discussions, key informant interviews, and workshops; made observations in the community; and carried out two experiments to quantitatively compare different drying methods. Qualitative data collection around social impact was guided by the Integrating Gender and Nutrition within Agricultural Extension Services (INGENAES) Gender Technology Assessment. I found that the chimney dryer was faster, more protected and hygienic, and preserved quality better than sun drying. While the dryer is relatively easy to use, it may require skilled labor to construct, and the design and size can be adapted based on user preference. Although local materials are affordable, any cost may discourage farmer adoption; so, in the future, the technology can be made more affordable through multiple households pooling their resources and sharing a dryer, or through government subsidies. Because drying is a relatively passive activity with little active time or labor, food safety and nutrition advantages may actually be more important than time saved. However, faster drying is still important for reduced spoilage, which can ultimately save labor and increase food safety and availability. Women will likely gain more than men from reduced time and workload, though concerted efforts will be required to ensure gender equity in value chain development for dried foods. Moreover, because farmers already know how to dry, the entire "dry chain," including the DryCardTM to measure dryness and moisture-proof storage, should be promoted to prevent spoilage and mycotoxin development.
Download or read book Solar Crop Drying written by M. S. Sodha and published by Springer. This book was released on 1987-04-30 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fundamentals of drying processes: drying parameters; Effect of parameters on drying; Characterization of drying; Mechanism of drying; Drying strategy; Technology of solar drying: open-air sun drying; Classification of solar dryers; Simulation model for drying systems: Introduction; Solar air heating systems; Drying processes for food/agricultural products; Relationships and data required for drying simulation models; Recommendations.
Download or read book The Role of Post harvest Management in Assuring the Quality and Safety of Horticultural Produce written by Adel A. Kader and published by Food & Agriculture Org.. This book was released on 2004 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Basic approaches to maintaining the safety and quality of horticultural produce are the same, regardless of the market to which this produce is targeted. This bulletin reviews the factors which contribute to quality and safety deterioration of horticultural produce, and describes approaches to assuring the maintenance of quality and safety throughout the post-harvest chain. Specific examples are given to illustrate the economic implications of investing in and applying proper post-harvest technologies. Criteria for the assessment of post-harvest needs, the selection of post-harvest technologies appropriate to the situation and context, and for extending appropriate levels of post-harvest information are also discussed.
Download or read book Solar Drying Technology written by Om Prakash and published by Springer. This book was released on 2017-08-29 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a comprehensive reference guide to the latest developments and advances in solar drying technology, covering the concept, design, testing, modeling, and economics of solar drying technologies, as well as their impact on the environment. The respective chapters are based on the latest studies conducted by reputed international researchers in the fields of solar energy and solar drying. Offering a perfect blend of research and practice explained in a simple manner, the book represents a valuable resource for researchers, students, professionals, and policymakers working in the field of solar drying and related agricultural applications.
Download or read book Solar Drying of Fruits and Vegetables written by Tania Vázquez Vargas and published by . This book was released on 1996 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Postharvest Handling written by Nigel H. Banks and published by Academic Press. This book was released on 2009-02-21 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Consideration of the interactions between decisions made at one point in the supply chain and its effects on the subsequent stages is the core concept of a systems approach. Postharvest Handling is unique in its application of this systems approach to the handling of fruits and vegetables, exploring multiple aspects of this important process through chapters written by experts from a variety of backgrounds. Newly updated and revised, this second edition includes coverage of the logistics of fresh produce from multiple perspectives, postharvest handing under varying weather conditions, quality control, changes in consumer eating habits and other factors key to successful postharvest handling. The ideal book for understanding the economic as well as physical impacts of postharvest handling decisions. Key Features: *Features contributions from leading experts providing a variety of perspectives *Updated with 12 new chapters *Focuses on application-based information for practical implementation *System approach is unique in the handling of fruits and vegetables
Download or read book The State of Food Security and Nutrition in the World 2020 written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2020-07-01 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updates for many countries have made it possible to estimate hunger in the world with greater accuracy this year. In particular, newly accessible data enabled the revision of the entire series of undernourishment estimates for China back to 2000, resulting in a substantial downward shift of the series of the number of undernourished in the world. Nevertheless, the revision confirms the trend reported in past editions: the number of people affected by hunger globally has been slowly on the rise since 2014. The report also shows that the burden of malnutrition in all its forms continues to be a challenge. There has been some progress for child stunting, low birthweight and exclusive breastfeeding, but at a pace that is still too slow. Childhood overweight is not improving and adult obesity is on the rise in all regions. The report complements the usual assessment of food security and nutrition with projections of what the world may look like in 2030, if trends of the last decade continue. Projections show that the world is not on track to achieve Zero Hunger by 2030 and, despite some progress, most indicators are also not on track to meet global nutrition targets. The food security and nutritional status of the most vulnerable population groups is likely to deteriorate further due to the health and socio economic impacts of the COVID-19 pandemic. The report puts a spotlight on diet quality as a critical link between food security and nutrition. Meeting SDG 2 targets will only be possible if people have enough food to eat and if what they are eating is nutritious and affordable. The report also introduces new analysis of the cost and affordability of healthy diets around the world, by region and in different development contexts. It presents valuations of the health and climate-change costs associated with current food consumption patterns, as well as the potential cost savings if food consumption patterns were to shift towards healthy diets that include sustainability considerations. The report then concludes with a discussion of the policies and strategies to transform food systems to ensure affordable healthy diets, as part of the required efforts to end both hunger and all forms of malnutrition.
Download or read book Renewable energy for agri food systems Towards the Sustainable Development Goals and the Paris Agreement written by International Renewable Energy Agency and published by Food & Agriculture Org.. This book was released on 2021-11-03 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2021, the United Nations Secretary-General will convene the Food Systems Summit to advance dialogue and action towards transforming the way the world produces, consumes and thinks about food guided by the overarching vision of a fairer, more sustainable world. The Secretary-General will also convene the High-Level Dialogue on Energy (HLDE) to promote the implementation of the energy-related goals and targets of the 2030 Agenda for Sustainable Development. Given the inextricable linkages between the energy and agriculture sectors, integrating the nexus perspective within the FSS and the HLDE is crucial to formulate a joint vision of actions to advance the 2030 Agenda for Sustainable Development and the Paris Agreement. In this context, IRENA and FAO have decided to jointly develop a report on the role of renewable energy used in food chain to advance energy and food security as well as climate action towards the achievement of Sustainable Development Goals and the Paris Agreement. While energy has a key enabling role in food system transformation and innovation in agriculture, its current use is unsustainable because of the high dependence on fossil fuels and frequent access to energy in developing countries. The challenge is to disconnect fossil fuel use from food system transformation without hampering food security. The use of renewable energy in food systems offers vast opportunities to address this challenge and help food systems meet their energy needs while advancing rural development while contributing to rural development and climate action.
Download or read book Abstracts on Tropical Agriculture written by and published by . This book was released on 1987 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Working with Smallholders written by World Bank and published by World Bank Publications. This book was released on 2023-11-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Smallholder farmers are the stewards of more than 80 percent of the world's farms. These small family businesses produce about one-third of the world's food. In Africa and Asia, smallholders dominate the production of food crops, as well as export commodities such as cocoa, coffee, and cotton. However, smallholders and farm workers remain among the poorest segments of the population, and they are on the frontline of climate change. Smallholder farmers face constraints in accessing inputs, finance, knowledge, technology, labor, and markets. Raising farm-level productivity in a sustainable way is a key development priority. Agribusinesses are increasingly working with smallholder farmers in low- and middle-income countries to secure agricultural commodities. More productive smallholders boost rural incomes and economic growth, as well as reduce poverty. Smallholders also represent a growing underserved market for farm inputs, information, and financial services. Working with Smallholders: A Handbook for Firms Building Sustainable Supply Chains (third edition) shows agribusinesses how to engage more effectively with smallholders and to develop sustainable, resilient, and productive supply chains. The book compiles practical solutions and cutting-edge ideas to overcome the challenges facing smallholders. This third edition is substantially revised from the second edition and incorporates new material on the potential for digital technologies and sustainable farming. This handbook is written principally to outline opportunities for the private sector. The content may also be useful to the staffs of governmental or nongovernmental development programs working with smallholders, as well as to academic and research institutions."--
