Navigation Links
Food scientists confirm commercial product effectively kills bacteria in vegetable washwater
Date:6/25/2008

BOISE, IdahoResearch conducted by food science faculty at the University of Idaho and Washington State University indicate that a commercially available fruit and vegetable wash, when used in a food-manufacturing setting, can dramatically decrease the number of disease-causing organisms in produce-processing washwater. That could reduce by manyfold the potential for cross-contamination within the water by such "gram-negative" bacteria as Salmonella and E. coli O157:H7.

The product, sold commercially as FIT Fruit and Vegetable Wash, not only proved much more effective than the commonly used chlorine dioxide but is made from ingredients like citric acid and distilled grapefruit oil that are generally regarded as safe. Chlorine dioxide, whose use in food plants can put workers at risk, was compromised by soils and plant debris in the washwater and killed only 90 percent of the target organisms in the food plant and followup laboratory studies. By contrast, FIT killed 99.9999 percent, according to associate professor of food science Dong-Hyun Kang of Washington State University. "If you had a million bacteria, you would have one left."

The researchunusual because part of it was conducted under real-world conditions in an Idaho freshpack potato operationwill be published by the Journal of Food Science in August and is currently available at http://www.blackwell-synergy.com/toc/jfds/0/0. University of Idaho Extension food scientist Jeff Kronenberg said the researchers chose potatoes for their study because their dirt-laden washwater poses the greatest challenge to products designed to control microbial contaminationnot because of any food-safety threat potatoes pose. Indeed, Kronenberg said, "We have historically had zero problems with food-borne diseases in potatoes that are sold in grocery stores and restaurants because they're cooked."

Kronenberg believes FIT should be further investigated for fresh produce that has been associated with food-borne illnessincluding lettuce, spinach, tomatoes, cilantro, parsley and other leafy vegetableswhere it is has the potential to save lives.

According to Kang, most food-processing firms cleanse their produce in flumes that operate as aquatic conveyor belts. "If a pathogen is introduced in the washwater, it will grow and continuously contaminate the new produce," he said. With 15 years of experience, Kang has found it "very, very difficult" to control disease-causing organisms in flume water and said he "didn't expect this kind of reduction. I'm really happy to see it."

WSU research technologist Peter Gray agreed, noting that the bacteria were "knocked down below the detection limit almost instantaneously" in the FIT treatments.


'/>"/>

Contact: Marlene Fritz
mfritz@uidaho.edu
208-364-6165
University of Idaho
Source:Eurekalert

Related biology news :

1. Scientists may have solved an ecological riddle
2. Indiana U scientists uncover potential key to better drugs to fight toxoplasmosis parasite
3. New bee checklist lets scientists link important information about all bee species
4. Scientists discover DNA knot keeps viral genes tightly corked inside shell
5. Scientists find potential protein biomarkers for growth hormone
6. Scientists confirm that parts of earliest genetic material may have come from the stars
7. Scientists find 245 million-year-old burrows of land vertebrates in Antarctica
8. Brain stem cells can be awakened, say Schepens scientists
9. Scientists demonstrate feasibility of preventing malaria parasite from becoming sexually mature
10. New fingerprint breakthrough by forensic scientists
11. Young mineral scientists rock!
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2017)... Forecasts by Product Type (EAC), ... End-Use (Transportation & Logistics, Government & Public Sector, Utilities ... Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), ... you looking for a definitive report on the $27.9bn ... ...
(Date:4/3/2017)... , April 3, 2017  Data ... precision engineering platform, detected a statistically significant ... product prior to treatment and objective response ... the potential to predict whether cancer patients ... to treatment, as well as to improve ...
(Date:3/28/2017)... India , March 28, 2017 ... IP, Biometrics), Hardware (Camera, Monitors, Servers, Storage Devices), Software ... Vertical, and Region - Global Forecast to 2022", published ... Billion in 2016 and is projected to reach USD ... between 2017 and 2022. The base year considered for ...
Breaking Biology News(10 mins):
(Date:4/20/2017)... NEW YORK , April 20, 2017 ... industry that focuses on novel drug development and clinical research ... morning are: Biostage Inc. (NASDAQ: BSTG), Keryx Biopharmaceuticals Inc. (NASDAQ: ... (NASDAQ: ZIOP ). You can access our complimentary ... ...
(Date:4/19/2017)... ... April 18, 2017 , ... Alisa Wright, founder and ... Awards from the Purdue College of Pharmacy in Lafayette, Indiana. , The Distinguished ... for achievements in their careers and other scientific endeavors. , Wright began her ...
(Date:4/19/2017)... ... April 19, 2017 , ... ... financing round. This event adds to several other early achievements at ThermaGenix, including ... Scientific Teams. , ThermaGenix will use proceeds from the Series A-1 ...
(Date:4/19/2017)... and PUNE, India , April 19, 2017 ... Microfiltration Market: Global Opportunity Analysis and Industry Forecast, 2014-2022 ," the global market ... million by 2022, registering a CAGR of 9.6% from 2016 to 2022. ... ... ...
Breaking Biology Technology: