Download or read book The Control of Aflatoxin Contamination at Harvest Drying Pre Storage and Storage Periods in Peanut The New Approach written by Isilay Lavkor and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Aflatoxins produced by Aspergillus flavus and Aspergillus parasiticus are contaminants of peanut (Arachis hypogea L.). Aflatoxin contamination is a serious concern given their hepatotoxic properties and their widespread occurrence during cultivation, harvest, drying and storage. Management of aflatoxin contamination of peanut is very important using cultural practice such as habitat management, soil amendments and pre- and post-harvest managements, using physical control methods, biological control methods and chemical control methods at harvest, drying, pre-storage and storage periods. Some procedures such as upkeep of low temperature and relative humidity (RH) in storage, keeping away the pod- and seed-feeding insects, doing the harvest and post-harvest procedure control, fast post-harvest drying, optimal timing of digging and harvest, providing optimum water to the crop through irrigation, avoiding mechanical damage during cultivation and optimal timing of digging and harvest might prevent the contamination of aflatoxin. In this review, various strategies for control of aflatoxin in peanuts in all periods are discussed.
Download or read book Aflatoxin written by Lukman Abdulra'Uf and published by BoD – Books on Demand. This book was released on 2017-08-30 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aflatoxins are a group of highly toxic and carcinogenic substances, which occur naturally, and can be found in food substances. Aflatoxins are secondary metabolites of certain strains of the fungi Aspergillus flavus and A. parasiticus and the less common A. nomius. Aflatoxins B1, B2, G1, and G2 are the most important members, which can be categorized into two groups according to the chemical structure. As a result of the adverse health effects of mycotoxins, their levels have been strictly regulated especially in food and feed samples. Therefore, their accurate identification and determination remain a Herculean task due to their presence in complex food matrices. The great public concern and the strict legislation incited the development of reliable, specific, selective, and sensitive analytical methods for pesticide monitoring that are discussed in this book.
Download or read book Aflatoxins written by Lukman Abdulra`uf and published by BoD – Books on Demand. This book was released on 2022-02-09 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aflatoxins are a group of highly toxic and carcinogenic substances that occur naturally and can be found in food substances. Aflatoxins are secondary metabolites of certain strains of fungi Aspergillus flavus and Aspergillus parasiticus as well as the less common Aspergillus nomius. Aflatoxins B1, B2, G1, and G2 are the most important members, which can be categorized into two groups according to chemical structure. As a result of the adverse health effects of mycotoxins, their levels have been strictly regulated, especially in food and feed samples. Therefore, their accurate identification and determination remain a herculean task due to their presence in the complex food matrix. The great public concern and the strict legislation incited the development of sensitive analytical methods that are discussed in this book.
Download or read book Bio management of Postharvest Diseases and Mycotoxigenic Fungi written by Neeta Sharma and published by CRC Press. This book was released on 2020-08-31 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an ever-increasing demand for more food but one of the stumbling blocks to achieving this goal is quality and quantity losses due to various pests and pathogens and the mycotoxins synthesized by these harmful biotic entities. Thus far, strategies employed to manage these post-harvest diseases and mycotoxins decontamination include established physical, cultural, and chemical methods. Recently, the application of chemicals to reduce decay and deterioration caused by various pathogens has been impeded as these hazardous chemicals contaminate the environment, enter the food chain, and destroy beneficial microorganisms and pests by aiming at non-target microorganisms. In light of this, the usage of eco-friendly and non-polluting alternatives to chemical pesticides is the call of the hour. Bio-management of Postharvest Diseases and Mycotoxigenic Fungi deals with the current state and future prospects of using various bio-management techniques that are natural, eco-friendly, and environmentally safe. It aims to increase awareness of their potential as well as sensitizing readers to the various aspects of biologicals in pest control. Key Features: Highlights classical versus new techniques adopted to manage postharvest diseases Discusses novel approaches in managing fungal spoilage and mycotoxin decontamination Provides readers with a 360-degree perspective of the pre- and post-harvest quality mycotoxin decontamination research being conducted Details proposals of new ideas to ensure a food secure and pesticide-free world This book disseminates notable and diversified scientific work carried out by leading experts in their own field. Written by qualified scientists in each of their respective disciplines, it can serve as a current and comprehensive treatise on the emerging field of bio-management of postharvest diseases and mycotoxin decontamination by products that are "generally regarded as safe."
Download or read book Effect of Harvesting Time and Drying Methods on Aflatoxin Contamination in Groundnut in Mozambique written by Emmanuel Jnr Zuza and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The production and utilization of groundnut have increased tremendously across all provinces of Mozambique. However, the presence of aflatoxins has remained a critical food concern in the human diet. In this study, the effect of harvesting time and drying methods on aflatoxin contamination was examined in Northern Mozambique. A randomized complete block design in a split-split plot arrangement with four replications was used with groundnut varieties as the main plot and harvesting dates and drying methods as the subplots. Groundnut samples were analyzed for aflatoxin using the Mreader. In both locations, field observations indicated that on average, aflatoxin contamination levels were lower at physiological maturity (,â§10¬†ppb) compared to harvesting 10¬†days before (,â§15¬†ppb) and 10¬†days after physiological maturity (,â•20¬†ppb). It was also observed that the two drying methods were effective in prevention of aflatoxin contamination on groundnut kernels to levels lower than 20¬†ppb. Aflatoxin contamination levels were significantly lower (,â§12¬†ppb) as a result of the A-Frame than the tarpaulin method. The results of this study, therefore, have indicated that proper postharvest management of groundnuts, such as harvesting at physiological maturity and improved drying, gave lowest aflatoxin contamination levels.
Download or read book Aflatoxins in food and feed Impacts risks and management strategies written by Brown, Lynn R. and published by Intl Food Policy Res Inst. This book was released on with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aflatoxins are fungal metabolites—mainly produced by Aspergillus flavus and Aspergillus parasiticus living in soil—that contaminate crops throughout growth, harvest, storage, transportation, and processing. Aflatoxin B1 is not only the most potent natural carcinogen known, but also the most commonly produced toxic strain. As of 2010, roughly 5 billion people worldwide were estimated to be exposed to high levels of aflatoxins. High consumption levels can result in aflatoxicosis, which is often fatal. Habitual consumption at lower levels causes liver cancer and immune suppression, and is strongly associated with stunting. Of 315 cases of aflatoxicosis in Kenya in 2004, 125 people died. Consumption of aflatoxins is cumulative: they are not eradicated through standard cooking processes, and the body is unable to destroy or excrete them. This policy note examines what aflatoxins are; how they are linked to gender, climate change, and nutrition; and how they can be controlled and managed effectively.
Download or read book Aflatoxin in seed cotton during short term trailer storage written by Anselm Clyde Griffin and published by . This book was released on 1976 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Review the Impact of Aflatoxin in Southeastern Peanuts written by United States. Congress. House. Committee on Agriculture. Subcommittee on Risk Management and Specialty Crops and published by . This book was released on 1998 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Summary and Recommendations of the International Workshop on Aflatoxin Contamination of Groundnut 6 9 Oct 1987 ICRISAT Center India written by and published by . This book was released on 1988 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mycotoxins written by John F. Leslie and published by CABI. This book was released on 2008 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is an outcome of the MycoGlobe conference in Accra. Most of the chapters are based on invited oral presentations made at the conference. The chapters in this book touch on issues including health, trade, ecology, epidemiology, occurrence, detection, management, awareness and policy. This book serves as a source of information on the occurrence and impact of mycotoxins on everything from trade and health to agricultural production in addition to suggesting opportunities for their management in Africa and elsewhere by researchers, policy makers and development investors.
Download or read book Mycotoxin Control in Low and Middle Income Countries written by Christopher P. Wild and published by IARC Working Group Report. This book was released on 2016-02-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an evaluation of measures to reduce exposure to highly toxic and carcinogenic contaminants in staple diets in Africa as well as parts of Asia and Latin America. Many of the poorest people in these regions are exposed to the pervasive natural toxins, aflatoxins and fumonisins, on a daily basis by eating their staple diet of groundnuts, maize, and other cereals. Exposure to mycotoxins at these high levels substantially increases mortality and morbidity. Aflatoxins are a cause of human liver cancer, and fatalities from acute aflatoxin poisoning outbreaks occur in Africa and Asia. The International Agency for Research on Cancer convened a Working Group of world-leading experts to review the health effects of aflatoxins and fumonisins and to evaluate intervention measures. The panel concluded that these mycotoxins not only are a cause of acute poisoning and cancer but also are a likely contributor to the high levels of stunting in children in affected populations. The Working Group also identified effective measures to reduce exposure in developing countries. The panel evaluated 15 interventions, considering the strength of the evidence as well as its completeness and its transferability at an individual, community, or national level. Four of the interventions were judged to be ready for implementation: improvement of dietary diversity; crop sorting; post-harvest measures, including improved storage; and, in Latin America for maize, optimized nixtamalization. These recommendations would be relevant for investment of public, nongovernmental organization, and private funds at the scale of the subsistence farmer, the smallholder, and through to a more advanced value chain.
Download or read book Two Essays on Peanut Aflatoxin Risk in Ghana written by Daniel Akwasi Kanyam and published by . This book was released on 2016 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation consists of two essays on aflatoxin risk mitigation in peanuts in Ghana. The first essay uses a unique dataset that combines aflatoxin test results with detailed survey data to examine how the constraints Ghanaian households face affect their peanuts production, drying, and storage practices, and how these practices affect aflatoxin levels. Results show a significant association of high aflatoxin levels with delayed harvest and drying on bare dirt, while sorting by quality results in a reduction in aflatoxin levels. The second essay assesses the effect of post-harvest measures (here improved methods of groundnuts drying and storage) on aflatoxin contamination levels in peanuts crops for subsistence farmers in the Northern and Upper East Region of Ghana. The result shows that sun drying on a tarpaulin reduces aflatoxin levels in groundnuts by approximately 40 percent compared to status quo methods of drying.
Download or read book Aflatoxin B1 Occurrence Detection and Toxicological Effects written by and published by BoD – Books on Demand. This book was released on 2020-06-03 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book consists of 11 chapters, divided into four parts. The chapters are written by experts in the field of aflatoxins. Select topics are presented here to provide a snapshot of current understanding of the occurrence and metabolism of aflatoxin B1, the contamination, exposure, and detection of aflatoxin B1, and the toxicological effects and detoxification of aflatoxin. The book is intended for students and scientists working in the field of aflatoxins.
Download or read book Phytochemicals in Human Health written by Venketeshwer Rao and published by BoD – Books on Demand. This book was released on 2020-02-12 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturally present bioactive compounds in plants are referred to as "Phytochemicals" and are being studied extensively for their role in human health. Studies have shown that they can have an important role to play in the prevention and management of several human diseases. Recognizing the increasing interest in this area, this book is being published in response to the need for more current information globally about phytochemicals and their role in human health. Chapters of the book are authored by internationally recognized authors who are experts in their respective field of expertise. The chapters represent both original research as well as up-to-date and comprehensive reviews. We are sure that the book will be an important reference source meeting the needs of a wide range of interest groups.
Download or read book Evaluation of Peanuts for Mold Infection and Aflatoxin Contamination written by Frank Olwari and published by LAP Lambert Academic Publishing. This book was released on 2012 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: Peanuts are commonly infected with yellow molds or Aspergillus flavus during pre- and post-harvest stages, storage and transportation resulting in aflatoxin contamination. Consumption of aflatoxin contaminated peanuts causes health hazards like; liver cancer, stunted growth and mental retardation, immune system suppression, allergies, and death in both humans and livestock. Recommended agronomic practices, good pre and post-harvest practices, chemical and biological control have been emphasized to overcome the above hazards. Adopting resistant varieties against Aspergillus flavus and aflatoxin contamination is considered as a cost effective strategy. Evaluation of different peanut varieties to A. flavus infection, determination of predominant Aspergillus species and levels of aflatoxin contamination in peanut varieties were the objectives of this study. Results showed that none of the varieties was immune to A. flavus infection. Differences were observed in the level of mycelial growth under different treatments. The Aspergillus species isolated from peanut kernels were; A. niger, A. flavus, A. nidulans and A. fumigatus. The aflatoxin contamination levels ranged from 6 to 27 ppb.
Download or read book Elimination of Aflatoxin Contamination in Peanut written by Ralf Georg Dietzgen and published by . This book was released on 1999 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mycotoxins written by Patrick Berka Njobeh and published by BoD – Books on Demand. This book was released on 2019-08-28 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Edited Volume Mycotoxins - Impact and Management Strategies is a collection of reviewed and relevant research chapters, offering a comprehensive overview of recent developments in the field of Mycotoxicology. The book comprises of single chapters authored by various researchers and edited by an expert active in this research area. This book is divided into three sections. Section 1 consists of one chapter that gives an overview of the socioeconomic impact of mycotoxins. Section 2 has five chapters that address the prevention and control of aflatoxins both at pre- and post-harvest stages. Section 3 has two chapters that deal with health impact and control in the poultry industry. This publication aims at providing a thorough overview of the latest research efforts in the field and opens new possible research paths for further novel developments in addressing the problem of mycotoxins.
