Featured Research

from universities, journals, and other organizations

Hot Solution To Bean Sprout Safety

Date:
April 2, 2009
Source:
Society for General Microbiology
Summary:
Bacterial infection of mung bean seeds can cause outbreaks of food poisoning when the sprouts are eaten. New research has shown ways of disinfecting the bean seeds using natural methods and which do not prevent the beans from sprouting.

Bacterial infection of mung bean seeds can cause outbreaks of food poisoning when the sprouts are eaten. Now research by a microbiologist from Nottingham University, UK has shown ways of disinfecting the bean seeds using natural methods and which do not prevent the beans from sprouting.

"Bean sprouts are regarded as a healthy food, but they are often eaten raw in salads", said Apinya Vanichpun, presenting her findings at the Society for General Microbiology meeting in Harrogate April 2, "If the bean seeds are contaminated with pathogenic bacteria there can be disease outbreaks when the sprouts are eaten".

"The challenge is to find a means of disinfecting the seeds that kills bacteria but that still allows the seeds to germinate to produce sprouts," she continued. "Consumers who want organic, "natural" foods do not want chemicals used to disinfect them and so this must be taken into account too."

Her experiments used Listeria monocytogenes bacteria, which causes listeriosis, a serious food borne disease which can lead to meningitis in people with a reduced immune system and abortion in pregnancy. Applying hot and chilled water in turn to the mung bean seeds killed significant numbers of the bacteria. However it had the disadvantage that it reduced the germination level of the seeds so producing fewer sprouts.

An equal mix of lime juice and vinegar was as effective in reducing bacterial numbers as a mixture containing sodium hypochlorite, the sterilizing chemical used in babies' bottles, and lactic acid; however this was still not as good as the temperature treatments. The lime and vinegar mix also had the problem that it affected the germination rate of the seeds more than did the sodium hypochlorite solution (only 78% sprouted with lime and vinegar against 98% with sodium hypochlorite),.

Hot water treatment seems to be a good option to use for seed disinfection as it would be a suitable choice for production systems that required the use of only natural products for organic fresh produce.


Story Source:

The above story is based on materials provided by Society for General Microbiology. Note: Materials may be edited for content and length.


Cite This Page:

Society for General Microbiology. "Hot Solution To Bean Sprout Safety." ScienceDaily. ScienceDaily, 2 April 2009. <www.sciencedaily.com/releases/2009/04/090401200435.htm>.
Society for General Microbiology. (2009, April 2). Hot Solution To Bean Sprout Safety. ScienceDaily. Retrieved September 1, 2014 from www.sciencedaily.com/releases/2009/04/090401200435.htm
Society for General Microbiology. "Hot Solution To Bean Sprout Safety." ScienceDaily. www.sciencedaily.com/releases/2009/04/090401200435.htm (accessed September 1, 2014).

Share This




More Plants & Animals News

Monday, September 1, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

We've Got Mites Living In Our Faces And So Do You

We've Got Mites Living In Our Faces And So Do You

Newsy (Aug. 30, 2014) A new study suggests 100 percent of adult humans (those over 18 years of age) have Demodex mites living in their faces. Video provided by Newsy
Powered by NewsLook.com
Washington Wildlife Center Goes Nuts Over Baby Squirrels

Washington Wildlife Center Goes Nuts Over Baby Squirrels

Reuters - US Online Video (Aug. 30, 2014) An animal rescue in Washington state receives an influx of orphaned squirrels, keeping workers busy as they nurse them back to health. Rough Cut (no reporter narration). Video provided by Reuters
Powered by NewsLook.com
Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Experimental Ebola Drug ZMapp Cures Lab Monkeys Of Disease

Newsy (Aug. 29, 2014) In a new study, a promising experimental treatment for Ebola managed to cure a group of infected macaque monkeys. Video provided by Newsy
Powered by NewsLook.com
Killer Amoeba Found in Louisiana Water System

Killer Amoeba Found in Louisiana Water System

AP (Aug. 28, 2014) State health officials say testing has confirmed the presence of a killer amoeba in a water system serving three St. John the Baptist Parish towns. (Aug. 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins