Navigation Links
Pickle spoilage bacteria may help environment
Date:9/17/2010

This press relase is available in Spanish.

Spoilage bacteria that can cause red coloration of pickles' skin during fermentation may actually help clean up dyes in textile industry wastewater, according to a U.S. Department of Agriculture (USDA) study.

Some species of Lactobacilli-food-related microorganisms-can cause red coloring when combined with tartrazine, a yellow food-coloring agent used in the manufacture of dill pickles. Now Agricultural Research Service (ARS) microbiologist Ilenys Prez-Daz and her colleagues have found that these spoilage Lactobacilli also may have environmental benefits. ARS is USDA's principal intramural scientific research agency.

The scientists from the ARS Food Science Research Unit in Raleigh, N.C., noted that several Lactobacilli modify azo dyes, which are used in the textile industry and may wind up in wastewater if untreated. These azo dyes impart vivid and warm colors such as red, orange and yellow to fabric. Though many azo dyes are nontoxic, some have been found to be mutagenic.

This is the first report that food-related microorganisms can transform azo dyes into non-mutagenic substances. The findings from this work have been reported in the Journal of Applied Microbiology.

According to Prez-Daz, considerable effort has been made to identify microorganisms capable of degrading azo dyes in wastewater. If food-grade Lactobacilli capable of degrading a range of azo dyes were identified, they might become organisms of choice for wastewater treatment applications.

This discovery was made during Prez-Daz's search for the culprit responsible for causing some commercial dill pickles to have red spoilage bacteria. Prez-Daz and her colleagues isolated Lactobacilli from spoiled jars of hamburger dill pickles and used those isolates to inoculate non-spoiled jars of hamburger dill pickles. Jars that contained brines with tartrazine developed the red hue on the pickle skins; those that had turmeric or no added coloring did not.

Seven treatments were tested to find a preventive measure for red-colored spoilage. Prez-Daz found that adding sodium benzoate prevented bacterial growth and the development of red-colored spoilage in hamburger pickles.


'/>"/>

Contact: Sharon Durham
sharon.durham@ars.usda.gov
301-504-1611
United States Department of Agriculture-Research, Education, and Economics
Source:Eurekalert

Related biology news :

1. Rice study examines how bacteria acquire immunity
2. New microfluidic chip for discriminating bacteria
3. Insulin may reduce several inflammatory factors induced by bacterial infection
4. Jailbreak bacteria can trigger heart disease
5. Backstabbing bacteria: A new treatment for infection?
6. Talented bacteria make food poisoning unpredictable
7. Imaging reveals key metabolic factors of cannibalistic bacteria
8. Antibacterial peptide could aid in treating soldiers burn wound infections
9. Stomach bacteria need vitamin to establish infection
10. Research targets basic metabolism of disease-causing fungi, bacteria
11. Bacteria breakthrough is heaven scent
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/6/2017)... LONDON , April 6, 2017 ... Control, RFID, ANPR, Document Readers, by End-Use (Transportation & ... Energy Facility, Oil, Gas & Fossil Generation Facility, Nuclear ... Healthcare, Educational, Other) Are you looking for ... Authentication sector? ...
(Date:4/3/2017)... 2017  Data captured by IsoCode, IsoPlexis ... a statistically significant association between the potency ... and objective response of cancer patients post-treatment. ... whether cancer patients will respond to CAR-T ... as to improve both pre-infusion potency testing and ...
(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:7/17/2017)... ... July 17, 2017 , ... ... trial solutions, today announced safety software company AB Cube has joined its ... business segment to advance technology innovation across life sciences and healthcare. Under ...
(Date:7/17/2017)... ... July 17, 2017 , ... ... by a wide range of overlapping clinical features. The advancement of targeted next-generation ... field of NDD research and testing. , However, designing a custom panel ...
(Date:7/17/2017)... ... July 17, 2017 , ... Co-Diagnostics, ... developed and intends both to manufacture and sell reagents used for diagnostic tests, ... Market. , Headquartered in Sandy, Utah, Co-Diagnostics’ intellectual property and technologies are protected ...
(Date:7/16/2017)... ... July 16, 2017 , ... ... instruments announced the launch of its new line of Rocking and Waving Shakers ... waving shaker models (both analog and digital) for laboratory applications in a variety ...
Breaking Biology Technology: