Corporate Banner
Satellite Banner
Food & Beverage Analysis
Scientific Community
Become a Member | Sign in
Home>News>This Article

Substances in Hop Leaves Could Fight Dental Diseases

Published: Monday, March 10, 2014
Last Updated: Monday, March 10, 2014
Bookmark and Share
A novel sequential chromatographic technique was applied to the comprehensive separation of polyphenols and related compounds from a hop bract extract.

Beer drinkers know that hops are what gives the drink its bitterness and aroma. Recently, scientists reported that the part of hops that isn’t used for making beer contains healthful antioxidants and could be used to battle cavities and gum disease. In a new study in ACS’ Journal of Agricultural and Food Chemistry, they say that they’ve identified some of the substances that could be responsible for these healthful effects.

Yoshihisa Tanaka and colleagues note that their earlier research found that antioxidant polyphenols, contained in the hop leaves (called bracts) could help fight cavities and gum disease. Extracts from bracts stopped the bacteria responsible for these dental conditions from being able to stick to surfaces and prevented the release of some bacterial toxins. Every year, farmers harvest about 2,300 tons of hops in the United States, but the bracts are not used for making beer and are discarded. Thus, there is potentially a large amount of bracts that could be repurposed for dental applications. But very few of the potentially hundreds of compounds in the bracts have been reported. Tanaka’s group decided to investigate what substances in these leaves might cause those healthful effects.

Using chromatography, they found three new compounds, one already-known compound that was identified for the first time in plants and 20 already-known compounds that were found for the first time in hops. The bracts also contained substantial amounts of proanthocyanidins, which are healthful antioxidants.

The article "Comprehensive Separation and Structural Analyses of Polyphenols and Related Compounds from Bracts of Hops (Humulus lupulus L.)" can be accessed online. 

Further Information

Join For Free

Access to this exclusive content is for Technology Networks Premium members only.

Join Technology Networks Premium for free access to:

  • Exclusive articles
  • Presentations from international conferences
  • Over 3,500+ scientific posters on ePosters
  • More than 5,100+ scientific videos on LabTube
  • 35 community eNewsletters

Sign In

Forgotten your details? Click Here
If you are not a member you can join here

*Please note: By logging into you agree to accept the use of cookies. To find out more about the cookies we use and how to delete them, see our privacy policy.

Related Content

Electronic ‘Tongue’ to Ensure Food Quality
The device could one day sample food and drinks as a quality check before they hit store shelves.
Wednesday, November 12, 2014
Could Non-gluten Proteins Play a Role in Celiac Disease?
Scientists are reporting in ACS’ Journal of Proteome Research that people with the disease also have reactions to non-gluten wheat proteins.
Monday, November 10, 2014
Lead and Cadmium Found in some Brazilian Chocolate
Commercial samples of chocolate purchased in Brazil have been found to contain varying levels of lead and cadmium.
Thursday, September 04, 2014
How to Prevent Organic Food Fraud
A new test under development has the potential to authenticate organic tomatoes and other produce.
Wednesday, August 27, 2014
Using ‘Bacteria-Eaters’ to Prevent Infections on Medical Implant Materials
They’re ba-ack! But in a new disease-fighting role.
Monday, May 13, 2013
Scientific News
Questioning the Safety of Selenium to Combat Cancer
Research indicates the need for change in practice as selenium supplements cannot be recommended for preventing colorectal cancer.
Food Analysis Applications of Core-Shell Columns in HPLC
Despite applications of core-shell particles columns in food analysis being at an early stage, articles describing their use for improving separations of several classes of compounds are becoming more frequent.
Cocoa Compound Linked to Some Cardiovascular Biomarker Improvements
The study highlights the urgent need for large, long-term RCTs that improve understanding of how the short-term benefits of cocoa flavanol intake on cardiometabolic biomarkers may be translated into clinical outcomes.
Desalinated Sea Water Linked to Iodine Deficiency Disorders
Study suggests that desalination can dramatically increase the prevalence of inadequate iodine intake.
3D-Printing in Science: Conference Co-Staged with LABVOLUTION
LABVOLUTION 2017 will have an added highlight of a simultaneous conference, "3D-Printing in Science".
A New Technique to Beat the Food Fraudsters
Shoppers can be more confident that their burgers are the real deal following a new method of testing for meat fraud developed at the Institute of Food Research on the Norwich Research Park.
Antibiotic Resistance Can Occur Naturally in Soil Bacteria
Scientists have found natural anti-biotic resistant bacteria in soils with little to no human exposure.
Eggs from Small Flocks More Likely to Contain Salmonella
Penn State study suggests that eggs from small local enterprises are not safer to eat than “commercially produced” eggs.
Using X-rays to Figure Out Fats
Scientists trying to replace food fats with non-saturated versions are looking to x-rays to aid them.
Feeding Babies Egg and Peanut May Prevent Food Allergy
The new analysis pools all existing data, and suggests introducing egg and peanut at an early age may prevent the development of allergy.

Skyscraper Banner
Go to LabTube
Go to eposters
Access to the latest scientific news
Exclusive articles
Upload and share your posters on ePosters
Latest presentations and webinars
View a library of 1,800+ scientific and medical posters
3,500+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
5,100+ scientific videos