Heterogeneous photocatalytic disinfection of wash waters from the fresh-cut vegetable industry - (Journal of Food Protection)
February 16, 2008 – 5:56 pmThe effectiveness of photocatalytic disinfection for control of natural and potentially pathogenic microflora in wash waters used for fresh-cut vegetables was evaluated. Wash waters for lettuce, escarole, chicory, carrot, onion, and spinach from a freshcut vegetable processing plant were treated with a titanium dioxide (TiO2) photocatalytic system. The vegetable wash waters were impelled out with a pump at a flow rate of 1,000 liters/h and conducted through a stainless steel circuit to the filtration system to reach the TiO2 photocatalyst fiber, which was illuminated with a 40-W UV-C lamp. The microbial and physicochemical qualities of the wash water were analyzed. Heterogeneous photocatalysis was an effective disinfection method, reducing counts of bacteria, molds, and yeasts. Most of the treated wash waters had total bacteria reductions of 4.1 ± 1.3 to 4.8 ± 0.4 log CFU/ml after 10 min of treatment when compared with untreated water. Higher decontamination efficacy was observed in […]
MORE:
http://www.extension.iastate.edu/foodsafety/news/fsnews.cfm?newsid=24274
Related posts:
ABSTRACT: Disinfection efficacy of slightly acidic electrolyzed water on fresh cut cabbage - (Food Control (Volume 20, Issue 3, March 2009, Pages 294-297))
US: Safe leafy greensbefore & after bagging - (USDA News Release)
U.S.: Fresh-cut produce washing practices can minimize food-borne illness risks - (Science Daily)
ABSTRACT: Pathogen detection and control in fresh broccoli sprouts - (Nutrition Journal)
Determination of 5-Log reduction times for food pathogens in acidified cucumbers during storage at 10 and 25°C - (Journal of Food Protection®, Volume 70, Number 11, November 2007 , pp. 2638-2641(4))
TEXAS: Accountability solution for the food industry - (Produce Safety & Security )
PMA supports establishing global food safety standards in comments on FDA Food Protection Plan - (Fresh Plaza)
ABSTRACT: Evaluation of chlorine, benzalkonium chloride and lactic acid as sanitizers for reducing Escherichia coli O157:H7 and Yersinia enterocolitica on fresh vegetables - (Food Control (Volume 20, Issue 3, March 2009, Pages 262-268))
Effect of hand wash agents on controlling the transmission of pathogenic bacteria from hands to food - (Journal of Food Protection)
NEW YORK: Survey illustrates consumer food-safety fears - (Food Product Design)
Microbial survey of selected Ontario-grown fresh fruits and vegetables - (Journal of Food Protection)
MARYLAND: Scientists test method for sanitizing leafy produce - (ARS News Service)
CALIFORNIA: Family farms may wilt under leafy-green law - (Sacramento Bee)
ABSTRACT: Latex glove use by food handlers: The case for nonlatex gloves - (Journal of Food Protection, Volume 71, Number 11, pp. 2334-2338(5))
BLOG: A common response - (Fresh Talk)
US: FDA food safety plan taps others for inspection help - (CIDRAP)
UK: Health warning over ‘ready-to-eat’ food - (The Scotsman)
Relative efficacy of sodium hypochlorite wash versus irradiation to inactivate Escherichia coli O157:H7 internalized in leaves of romaine lettuce and baby spinach - (Journal of Food Protection®)
NEW ZEALAND: Kiwi created food processing technology - (Scoop)
CALIFORNIA: PMA Solutions message: Industry must reinvent self - (ThePacker.com)
Microbiological quality of sushi from sushi bars and retailers - (Journal of Food Protection®, Volume 71, Number 4, April 2008 , pp. 860-864(5))
SPROUTNET: Garbage in garbage out - (International Specialty Supply)
ABSTRACT: Evaluation of various antimicrobial interventions for the reduction of escherichia coli O157:H7 on bovine heads during processing - (Journal of Food Protection)
BSTRACT: Effect of acidified sodium chlorite, chlorine, and acidic electrolyzed water on Escherichia coli O157:H7, Salmonella, and Listeria monocytogenes inoculated onto leafy greens - (Journal of Food Protection)
BARFBLOG: Greenhouse vegetable food safety: Watch those dirty boots - (barfblog)
CALIFORNIA: Eco-Safe announces results of challenge study of ozone vs. chlorine - (Eco-Safe Systems USA, Inc.)
US: FDAs director of food safety to present keynote address at International Tomato Congress - (Fresh Plaza)
Food safety starts in the garden - (Calaveras News)
US: Jalapeños add to rising Salmonella cases: CDC says peppers caused some of 1,017 cases so far - (Wall Street Journal)
Pulsed-p lasma gas-discharge inactivation of microbial pathogens in chilled poultry wash water - (Journal of Food Protection)
ABSTRACT: Efficacy of sanitizing treatments against Penicillium expansum inoculated on six varieties of apples - (Journal of Food Protection)
IRELAND: FSAI states that the safety and quality of bottled water is assured - (FSAI)
MICHIGAN: NSF appoints director of restaurant food safety division - (Fast Casual)
US: Guide to minimize microbial food safety hazards of fresh-cut fruits and vegetables - (US FDA/CFSAN)
FDA guidance on listeria called unworkable - (The Packer.com)
AUSTRALIA: Reclaim water not responsible for legionnaires outbreak - (PC&D)
NEBRASKA: Meat processors look for ways to keep ground beef safe - (New York Times)
ABSTRACT: Development of TiO2 powder-coated food packaging film and its ability to inactivate Escherichia coli in vitro and in actual tests - (Journal of Food Microbiology, Volume 123, Issue 3)
Sesame seed extract and konjac gum may help ward off salmonella and E. coli - (Society of Chemical Industry)
WASHINGTON, DC: After spinach scare, FDA calls for handwashing - (Bloomberg News)
Reports: China begins anti-pirate patrols
KANSAS: Food safety for fresh produce begins on the farm - (Kansas State University press release)
French ship freed as anti-pirate patrols start
CONNECTICUT: Keep food safety in mind when planning vegetable garden - (Danbury News-Times)
ONTARIO: Information update: food safety measures for fiddleheads - (The Earth Times)
INDIANA: Health department sued over inspection - (Herald Journal)
US system to pinpoint food contamination sources ’slow, inaccurate, and difficult’ Rabobank - (Rabobank)
iFSN: Where frozen and canned vegetables come from: 2001 - (International Food Safety Network)
BLOG: WASHINGTON: State investigators are checking food from fields to the packing plants to protect consumers from food-borne diseases. - (Seattle pi)
DELAWARE: Food safety - critical for fresh produce growers - (North Carolina State University Fresh Produce Safety)
Outbreaks where food workers have been implicated in the spread of foodborne disease. part 3. factors contributing to outbreaks and description of outbreak categories - (Journal of Food Protection (Volume 70, Number 9, pp. 2199-2217))
Cruise ship sinking in Antarctic waters
Michelle Smith: U.S. Food and Drug Administration - (ThePacker.com)
VIRGINIA: Make the grade with food safety for school lunches - (from a press release)
BLOG: Gorny: More public health resources needed - (Fresh Talk)
US: ARS research program on food safety of leafy greens and other fresh produce - (USDA News Release)
Severe acute watery diarrhoea with cases positive for Vibrio cholerae, VIETNAM - (Weekly Epidemiological Record)
OKLAHOMA: Food industry tries to win consumers’ confidence back - (The Oklahoman)
BARFBLOG: Fresh produce and food banks - (barfblog)
US: No evidence to support ‘organic is best’ - (EurekAlert!)
IAFP holds successful third European symposium on food safety - (International Association for Food Protection)
US: FDA Food Protection Plan shows significant progress - (FDA News)
CHINA: For better food safety - (China Daily)
MAINE: CDC emphasizes safe cooking of fiddleheads - (VillageSoup/Waldo County Citizen)
US: Watermelon association works on food safety image - (ThePacker.com)
ARIZONA: UA researchers offer advice for safer salads - (University of Arizona)
BARFBLOG: Can TV cooks become food safety celebrities? or Have you spotted Doug Powell ranting? - (barfblog)
ABSTRACT: Are Staff Management Practices and inspection risk ratings associated with foodborne disease outbreaks in the catering industry in England and Wales? - (Journal of Food Protection)
US: Can food industry police itself? - (Wall Street Journal)
OREGON: Advance offers revolution in food safety testing - (Oregon State University)
BARFBLOG: Asking questions about fresh produce - (barfblog)
US: FDA releases Food Protection Plan progress report - (CleanRooms)
Effectiveness of lemon juice in the elimination of Salmonella typhimurium in stuffed mussels - (Journal of Food Protection)
SOUTH DAKOTA: Our View: Inspections give patrons confidence - (The Daily Republic)
UK: Health Protection Agency confirms salmonella investigation - (Salisbury Journal)
Produce can harbor food pathogens - (UPI)
AUSTRALIAN men and young adults rate badly in food safety report - (Food Standards Australia New Zealand (FSANZ))
Meat safety: It all works out in the wash - (Agricultural Research Service, USDA)
US: Effect of hot water surface pasteurization of whole fruit on shelf life and quality of fresh-cut cantaloupe - (The Blackwell Synergy)
FDA has provided few details on the resources and strategies needed to implement its food protection plan - (GAO)
NEW ZEALAND: PHA: Some school handwashing facilities appalling - (Scoop.co.nz)
Inactivation kinetics and factors of variability in the pulsed light treatment of Listeria innocua cells - (Journal of Food Protection®)
ABSTRACT: High relative humidity in-package of fresh-cut fruits and vegetables: Advantage or disadvantage considering microbiological problems and antimicrobial delivering systems? - (Journal of Food Science, Volume 73 Issue 4 Page R41-R47)
New International Food Safety Network Infosheet — Dude, wash your hands - (International Food Safety Network)
Microbiology, physical and sensory quality of vacuum-packaged fresh blue crab meat (Callinectes sapidus) treated with high hydrostatic pressure - (International Association for Food Protection)
How well do you wash your hands? - (WUSA.com)
Safety assessment of dairy microorganisms: The Lactobacillus genus - (International Journal of Food Microbiology Vol. 126, Issue 3)
OKLAHOMA: Company leader speaks about E. coli outbreak in spinach - (High Plains/Midwest Ag Journal)
US: Consumer and industry leaders collaborate to promote food safety innovation and best practices - (Cooperating for Food Safety)
CANADA: Rough waters for cruise ship as illness hits 261 passengers - (TheStar.com)
ABSTRACT: Survival and transfer of murine norovirus 1, a surrogate for human noroviruses, during the production process of deep-frozen onions and spinach - (Journal of Food Protection)
iFSN: Dude, wash your hands - (International Food Safety Network)
BARFBLOG: Employees must wash hands - (barfblog)
BARFBLOG: Employees must wash hands - (barfblog)
FRENCH food firms preoccupied by safety - (foodproductiondaily.com)
ALBERTA: Food safety information society: What you don’t know about produce can harm you - (from a press release)
CALIFORNIA: Growers of produce may face more rules - (Inside Bay Area)
ABSTRACT: Sterility testing of a dispensing valve for aseptic function in food service applications - (Journal of Food Protection)
Cornell roundtable looks at local food sources - (Cornell University)
NEW JERSEY: Food poisoning - it’s the norwalk virus - (The Jersey Evening Post)