• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Friday, October 24, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News

Sunflower seeds traced as source of toxic mold, potent liver carcinogen

Bioengineer by Bioengineer
April 21, 2017
in Science News
Reading Time: 3 mins read
0
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram
IMAGE

Credit: Courtesy of MSU

EAST LANSING, Mich. – Michigan State University researchers have shown that sunflower seeds are frequently contaminated with a toxin produced by molds and pose an increased health risk in many low-income countries worldwide.

In the current issue of PLoS ONE, the team of scientists documented frequent occurrence of aflatoxin – a toxin produced by Aspergillus molds that commonly infect corn, peanuts, pistachios and almonds – in sunflower seeds and their products. This is one of the first studies to associate aflatoxin contamination with sunflower seeds.

The study was conducted in Tanzania, but the problem is by no means isolated there. Chronic exposure to aflatoxin causes an estimated 25,000-155,000 deaths worldwide each year, from corn and peanuts alone. Since it is one of the most potent liver carcinogens known, the research to detect and limit its presence in sunflower seeds and their products could help save lives and reduce liver disease in areas where sunflowers and their byproducts are consumed, said Gale Strasburg, MSU food science and human nutrition professor and one of the study's co-authors.

"These high aflatoxin levels, in a commodity frequently consumed by the Tanzanian population, indicate that local authorities must implement interventions to prevent and control aflatoxin contamination along the sunflower commodity value chain, to enhance food and feed safety in Tanzania," he said. "Follow-up research is needed to determine intake rates of sunflower seed products in humans and animals, to inform exposure assessments and to better understand the role of sunflower seeds and cakes as a dietary aflatoxin source."

Smallholder farmers in Tanzania grow sunflowers for the seeds, which are sold to local millers who press the seeds for oil and sell it to local consumers for cooking. The remaining cakes are used as animal feed.

The seeds become infected by Aspergillus flavus or Aspergillus parasiticus, molds that produce aflatoxin. This contamination has been well studied in other crops, but there is little research published on sunflower seed contamination.

Juma Mmongoyo, a former MSU food science doctoral student and lead author of the study, analyzed aflatoxin levels of seeds and cakes in seven regions of Tanzania in 2014 and 2015. Nearly 60 percent of seed samples and 80 percent of cake samples were contaminated with aflatoxins.

In addition, 14 percent of seeds and 17 percent of cakes were contaminated above 20 parts per billion, the level considered safe by the U.S. Food and Drug Administration. Some samples had levels of several hundred parts per billion.

"Billions of people worldwide are exposed to aflatoxin in their diets, particularly in places where food is not monitored regularly for contaminants," said Felicia Wu, the Hannah Distinguished Professor of Food Science and Human Nutrition and Agricultural, Food and Resource Economics at MSU and study co-author. "Our previous work with the World Health Organization on the global burden of foodborne disease showed that aflatoxin is one of the chemical contaminants that causes the greatest disease burden worldwide."

To help solve that problem, Wu founded the Center for the Health Impacts of Agriculture. The center tackles global issues, such as antibiotics given to livestock and poultry that seep into soil and nearby bodies of water, and the association between malaria incidence and irrigation patterns in sub-Saharan Africa.

MSU scientists John Linz, Muraleedharan Nair and Robert Tempelman contributed to this study. Jovin Mugula of the Sokoine University of Agriculture (Tanzania) also contributed to this research.

###

Michigan State University has been working to advance the common good in uncommon ways for more than 150 years. One of the top research universities in the world, MSU focuses its vast resources on creating solutions to some of the world's most pressing challenges, while providing life-changing opportunities to a diverse and inclusive academic community through more than 200 programs of study in 17 degree-granting colleges.

For MSU news on the Web, go to MSUToday. Follow MSU News on Twitter at twitter.com/MSUnews.

Media Contact

Layne Cameron
[email protected]
517-353-8819
@MSUnews

http://msutoday.msu.edu/journalists/

############

Story Source: Materials provided by Scienmag

Share12Tweet8Share2ShareShareShare2

Related Posts

Study Cautions That Heavier Electric Trucks May Overload New York City’s Infrastructure

Study Cautions That Heavier Electric Trucks May Overload New York City’s Infrastructure

October 24, 2025

OPTILATER: Surveying Long-Term Cancer Survivor Care

October 24, 2025

Child Welfare System Involvement Enhances Detection of Developmental Delays

October 24, 2025

Boosting Plant Growth: Indigenous Bacteria Against Nematodes

October 24, 2025
Please login to join discussion

POPULAR NEWS

  • Sperm MicroRNAs: Crucial Mediators of Paternal Exercise Capacity Transmission

    1280 shares
    Share 511 Tweet 320
  • Stinkbug Leg Organ Hosts Symbiotic Fungi That Protect Eggs from Parasitic Wasps

    309 shares
    Share 124 Tweet 77
  • ESMO 2025: mRNA COVID Vaccines Enhance Efficacy of Cancer Immunotherapy

    187 shares
    Share 75 Tweet 47
  • New Study Suggests ALS and MS May Stem from Common Environmental Factor

    133 shares
    Share 53 Tweet 33

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Study Cautions That Heavier Electric Trucks May Overload New York City’s Infrastructure

OPTILATER: Surveying Long-Term Cancer Survivor Care

Child Welfare System Involvement Enhances Detection of Developmental Delays

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 66 other subscribers
  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.