scholarly journals Potassium Nutrition in Fruits and Vegetables and Food Safety through Hydroponic System

Author(s):  
Flávio José Rodrigues Cruz ◽  
Renato de Mello Prado ◽  
Guilherme Felisberto ◽  
Águila Silva Santos ◽  
Rafael Ferreira Barreto
EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Jesscia A. Lepper ◽  
Aswathy Sreedharan ◽  
Renée Goodrich Schneider ◽  
Keith R. Schneider

Good agricultural practices (GAPs) and good handling practices (GHPs) encompass the general procedures that growers, packers and processors of fresh fruits and vegetables should follow to ensure the safety of their product. GAPs usually deal with preharvest practices (i.e., in the field), while GHPs cover postharvest practices, including packing, storage and shipping. This factsheet covers GAPs relating to packing operation sanitation. There are seven other Florida Cooperative Extension factsheets in the ‘Food Safety on the Farm’ series that focus on specific aspects of the GAPs program and how they relate to Florida crops and practices. Under the new Food Safety Modernization Act (FSMA), GAPs are a foundation of the Produce Safety Rule (PSR). Other than for round tomatoes in Florida (T-GAPs regulation), GAPs have mainly been a voluntary program. Additionally the PSR mandates all non-exempt operations to follow these new FSMA federal guidelines (6), but all exempt commodities and for those producers exporting to foreign countries, GAPs may still be required. Both the mandatory PSR and GAPs aim to reduce the foodborne illness burden associated with produce.


Author(s):  
Philip Martin

Why do farm workers become more vulnerable as countries get richer? As countries get richer, the share of workers employed in agriculture falls. In richer countries, hired farm workers do ever more of the work on the fewer and larger farms that produce most farm commodities. These hired workers include local workers who lack the skills and contacts needed to get nonfarm jobs that usually offer higher wages and more opportunities as well as legal and unauthorized migrants from poorer countries who may not know or exercise their labor-related rights. Government enforcement of labor laws depends on complaints, and vulnerable workers rarely complain. The Prosperity Paradox explains why farm-worker problems often worsen as the agricultural sector shrinks and lays out options to help vulnerable workers. Analysis of farm labor markets in the US, Mexico, and other countries shows that unions and fair trade efforts to protect farm workers cover a very small share of all workers and are unlikely to expand quickly. Most labor-intensive fruits and vegetables are eaten fresh. Unsafe food that sickened consumers led to voluntary industry and later government-mandated food-safety programs to ensure that food is safe when it leaves the farm, with protocols enforced by both government inspectors and buyers who refused to buy from noncompliant farms. This food-safety model offers the most promise for a new era in protective labor policies.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1327
Author(s):  
Run Qin ◽  
Ping Li ◽  
Mingyi Du ◽  
Lianlian Ma ◽  
Yudi Huang ◽  
...  

Food safety issues caused by pesticide residue have exerted far-reaching impacts on human daily life, yet the available detection methods normally focus on surface residue rather than pesticide penetration to the internal area of foods. Herein, we demonstrated gold nanoparticle (AuNP)-immersed paper imprinting mass spectrometry imaging (MSI) for monitoring pesticide migration behaviors in various fruits and vegetables (i.e., apple, cucumber, pepper, plum, carrot, and strawberry). By manually stamping food tissues onto AuNP-immersed paper, this method affords the spatiotemporal visualization of insecticides and fungicides within fruits and vegetables, avoiding tedious and time-consuming sample preparation. Using the established MSI platform, we can track the migration of insecticides and fungicides into the inner region of foods. The results revealed that both the octanol-water partition coefficient of pesticides and water content of garden stuffs could influence the discrepancy in the migration speed of pesticides into food kernels. Taken together, this nanopaper imprinting MSI is poised to be a powerful tool because of its simplicity, rapidity, and easy operation, offering the potential to facilitate further applications in food analysis. Moreover, new perspectives are given to provide guidelines for the rational design of novel pesticide candidates, reducing the risk of food safety issues caused by pesticide residue.


Foods ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 1461
Author(s):  
Oscar A. Galagarza ◽  
Alejandra Ramirez-Hernandez ◽  
Haley F. Oliver ◽  
Mariel V. Álvarez Rodríguez ◽  
María del Carmen Valdez Ortiz ◽  
...  

The presence of chemical contaminants in agricultural products is a continued food-safety challenge in Peru. This country has robust agriculture potential, but its output of fruits and vegetables is severely impacted by massive mining activities, as well as poor farming practices, including the use of polluted irrigation water, misuse of pesticides, and inadequate postharvest conditions. This review examines the current scientific knowledge on the levels of pesticide residues, heavy metals, and mycotoxins on crops produced in Peru. The available data shows that several crop varieties are contaminated with these classes of chemical contaminants, and at levels that exceed the national and international permissible limits. The abundance of chemical contaminants in produce indicates a relevant food-safety issue, which increases the risks of chronic human diseases, like cancer—a leading cause of death in Peru. Finally, this review presents recommendations to address these contamination problems in produce grown in the Andean country.


2007 ◽  
Vol 70 (12) ◽  
pp. 2864-2867 ◽  
Author(s):  
LINDSAY ARTHUR ◽  
SANDRA JONES ◽  
MARTHA FABRI ◽  
JOSEPH ODUMERU

Recent produce-related outbreaks have been receiving heightened media coverage, which has increased public concern toward the safety of fresh fruits and vegetables. In response, the microbial contamination of Ontario-grown fresh fruits and vegetables was evaluated by the Ontario Ministry of Agriculture, Food and Rural Affairs during the summer of 2004. Prior to this survey, information specific to the microbial contamination of Ontario-produced fruits and vegetables was limited. This nonregulatory survey had two objectives: (i) to obtain a general microbiological profile of selected fruits and vegetables produced in Ontario and (ii) to use the information and knowledge gained from this survey to direct and support future on-farm food safety research and food safety programs to manage potential risks. In all, 1,183 samples, including muskmelon (151), scallions and green onions (173), leaf lettuce (263), organic leaf lettuce (112), head lettuce (155), parsley (127), cilantro (61), and fresh market tomatoes (141), were collected and analyzed. Samples were analyzed for Salmonella, Shigella, and generic E. coli. Enrichment cultures positive for E. coli were further assessed for verotoxigenicity. One sample each of Roma tomato and organic leaf lettuce were positive for Salmonella, with no samples yielding Shigella or verotoxigenic E. coli. The E. coli prevalence was highest in parsley (13.4%), followed by organic leaf lettuce (11.6%), leaf lettuce (6.5%), scallions (6.4%), cilantro (4.9%), muskmelon (1.3%), head lettuce (0%), and fresh market tomatoes (0%). These findings, in combination with foodborne illness data, will help target those commodities that require more focused risk mitigation efforts.


EDIS ◽  
2019 ◽  
Vol 2019 (2) ◽  
Author(s):  
Christopher R. Pabst ◽  
Jaysankar De ◽  
Alina Balaguero ◽  
Jessica Lepper ◽  
Renee M. Goodrich Schneider ◽  
...  

Good agricultural practices (GAPs) and good handling practices (GHPs) encompass the general procedures growers, packers, and processors of fresh fruits and vegetables should follow to ensure the safety of their product. GAPs usually address preharvest practices (i.e., in the field), while GHPs cover postharvest practices, including packing and shipping. This 3-page fact sheet covers the GAPs of transporting crops. This major revision is a part of the Food Safety on the Farm series and was written by Christopher R. Pabst, Jaysankar De, Alina Balaguero, Jessica Lepper, Renée Goodrich-Schneider, and Keith R. Schneider and published by the UF/IFAS Food Science and Human Nutrition Department. http://edis.ifas.ufl.edu/fs151


2008 ◽  
Vol 43 (3) ◽  
pp. 3-20 ◽  
Author(s):  
Khushdeep Dharni ◽  
Sonika Sharma

With incidence of food-borne diseases, consumers have become more conscious of food safety. Share of high value food items in the export bounty from developing countries like India is on the rise. These high value food items such as fresh & processed fruits and vegetables, marine products, meat and its preparations are highly income elastic as well as sensitive from the viewpoint of food safety. Article 20 of GATT allows governments to act on trade in order to protect human, animal or plant life or health, provided they do not discriminate or use this as disguised protectionism. SPS Agreement sets out the basic rules concerning food safety and animal & plant health standards. It allows countries to set their own standards but also says that regulations must be based on science. With increased retail concentration ratio, large retailers in the developed countries are enforcing their own food safety standards and these standards are stringent as compared to standards of standard setting bodies of WTO. At times these standards are used for discrimination in international trade and are telling upon the exports from developing countries in terms of additional costs of compliance and lack of “harmonization” and difficulties in establishing “equivalence”. For the benefit of exporters from the developing countries and consumers of the developed countries, efforts must be made for encouraging harmonization in these private standards and reducing the resulting discrimination.


2002 ◽  
Vol 65 (6) ◽  
pp. 918-923 ◽  
Author(s):  
DOUGLAS A. POWELL ◽  
MAURICIO BOBADILLA-RUIZ ◽  
AMANDA WHITFIELD ◽  
MANSEL W. GRIFFITHS ◽  
AMBER LUEDTKE

Fresh fruits and vegetables are increasingly recognized as vectors for foodborne illness. Consequently, an on-farm food safety program was developed, implemented, and analyzed for the Ontario Greenhouse Vegetable Growers in Ontario, Canada, during a 2½-year period. This hazard analysis critical control point–based system was designed to reduce the potential of microbial contamination along the entire production and distribution process. Through the use of microbiological testing, on-site visits, and producer surveys, it was determined that the program has increased grower knowledge, understanding, and awareness of microbial risks associated with fresh produce and caused improvements in practices used within the greenhouse and packing sheds.


EDIS ◽  
2017 ◽  
Vol 2017 (6) ◽  
Author(s):  
Jessica A. Lepper ◽  
Keith R. Schneider ◽  
Renée M. Goodrich Schneider ◽  
Aswathy Sreedharan

Good agricultural practices (GAPs) and good handling practices (GHPs) encompass the general procedures that growers, packers and processors of fresh fruits and vegetables should follow to ensure the safety of their product. GAPs usually deal with preharvest practices (i.e., in the field), while GHPs cover postharvest practices, including packing and shipping. This factsheet covers GAPs and GHPs relating to worker health and hygiene. There are seven other Florida Cooperative Extension factsheets in the 'Food Safety on the Farm' series that focus on specific aspects of the GAPs program and how they relate to Florida crops and practices. Under the new Food Safety Modernization Act (FSMA), GAPs are a foundation of the Produce Safety Rule (PSR). Other than for round tomatoes in Florida (T-GAPs regulation), GAPs have mainly been a voluntary program. Additionally the PSR mandates all non-exempt operations to follow these new FSMA federal guidelines (8), but all exempt commodities and for those producers exporting to foreign countries, GAPs may still be required. Both the mandatory PSR and GAPs aim to reduce the foodborne illness burden associated with produce.


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