Featured Research

from universities, journals, and other organizations

‘Green’ Potato Health Risk Can Be Eliminated By Cutting Away Affected Area

Date:
July 28, 2008
Source:
Society of Chemical Industry
Summary:
Potatoes that have turned ‘green’ can potentially contain a naturally occurring toxin called Glycoalkaloids (GA) and pose a risk to public health. However, the good news is that cutting away the ‘green’ affected area is enough to eliminate most of the GAs to reduce the risk.

Potatoes that have turned ‘green’ can potentially contain a naturally occurring toxin called Glycoalkaloids (GA) and pose a risk to public health according to a review paper published in the latest online issue of SCI’s Journal of the Science of Food and Agriculture (JSFA).

Related Articles


However, the good news is that cutting away the ‘green’ affected area is enough to eliminate most of the GAs to reduce the risk.

The paper also suggests that the levels of GAs in potatoes can be controlled effectively by adopting appropriate pre-harvest and post-harvest practices – and therefore farmers and producers can do much to reduce the public risks of GAs.

Some measures include keeping tubers well covered with soil during growth, allowing them to mature before harvesting, avoiding harvest at very high temperatures and minimising exposure to light.

GAs are a naturally occurring toxic substance in potatoes that have antimicrobial, insecticidal and fungicidal properties which probably evolved as a protective mechanism against invasion by foreign bodies to protect the plant against pests and disease.

However, they can be toxic to humans and can cause serious illness at concentrations of >280 mg kg-1 f.w. (1)

Symptoms generally occur after 8-12 hours after ingestion and can include gastrointestinal disturbances and neurological disorders. Mild symptoms can include headaches, dizziness, abdominal pain, nausea, vomiting and diarrhoea. Other symptoms can include restlessness, drowsiness and mental confusion, trembling and hallucination but because the symptoms are common to a whole host of other ailments, mistaken diagnoses can occur.

The review was authored by Prabhat K Nema from the College of Horticulture, Jawaharlal Nehru Agricultural University, India, who was supported by the Seligman APV Fellowship in Food Engineering, a scholarship administered by SCI to help fund research and scientists from overseas; Professor Niranjan Keshavan and Ramaya Nidhi from the Department of Food Biosciences, University of Reading; and Eric Duncan from industrial partner Paragan Flexible, Lincolnshire, which helped support research on the effect of modified atmosphere packaging on GA levels at Reading University.

(1) McMillan M and Thompson JC, An outbreak of suspected solanine poisoning in schoolboys: examination of criteria of solanine poisoning. Q J Med 190:227-231 (1979)


Story Source:

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


Cite This Page:

Society of Chemical Industry. "‘Green’ Potato Health Risk Can Be Eliminated By Cutting Away Affected Area." ScienceDaily. ScienceDaily, 28 July 2008. <www.sciencedaily.com/releases/2008/07/080725093500.htm>.
Society of Chemical Industry. (2008, July 28). ‘Green’ Potato Health Risk Can Be Eliminated By Cutting Away Affected Area. ScienceDaily. Retrieved April 21, 2015 from www.sciencedaily.com/releases/2008/07/080725093500.htm
Society of Chemical Industry. "‘Green’ Potato Health Risk Can Be Eliminated By Cutting Away Affected Area." ScienceDaily. www.sciencedaily.com/releases/2008/07/080725093500.htm (accessed April 21, 2015).

Share This


More From ScienceDaily



More Plants & Animals News

Tuesday, April 21, 2015

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deepwater And Dolphins: The Oil Spill's Impact 5 Years On

Deepwater And Dolphins: The Oil Spill's Impact 5 Years On

Newsy (Apr. 20, 2015) Five years on, the possible environmental impact of the Deepwater Horizon spill includes a sustained die-off of bottlenose dolphins, among others. Video provided by Newsy
Powered by NewsLook.com
Five Years Later, the BP Oil Spill Is Still Taking Its Toll

Five Years Later, the BP Oil Spill Is Still Taking Its Toll

AFP (Apr. 20, 2015) On April 20, 2010, an explosion and fire on the Deepwater Horizon rig in the Gulf of Mexico started the biggest oil spill in US history. BP recently reported the Gulf is recovering well, but scientists paint a different picture. Duration: 02:36 Video provided by AFP
Powered by NewsLook.com
Thai Customs Seize African Elephant Tusks Worth $6 Mn

Thai Customs Seize African Elephant Tusks Worth $6 Mn

AFP (Apr. 20, 2015) Thai customs seize four tonnes of African elephant ivory worth $6 million at a Bangkok port in a container labelled as beans. Duration: 00:47 Video provided by AFP
Powered by NewsLook.com
Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Un-Bee-Lievable: Bees on the Loose After Washington Truck Crash

Reuters - US Online Video (Apr. 17, 2015) A truck carrying honey bees overturns near Lynnwood, Washington, spreading boxes of live bees across the highway. Rough Cut (no reporter narration). Video provided by Reuters
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:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

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