Corporate Banner
Satellite Banner
Chromatography
Scientific Community
 
Become a Member | Sign in
Home>News>This Article
  News
Return

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 3,000+ scientific posters on ePosters
  • More than 4,500+ 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 TechnologyNetworks.com 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.


Scientific News
Why do Tomatoes Smell "Grassy"?
Researchers identify enzymes that convert the grassy smell of tomatoes into a sweeter scent.
Plasma Biomarkers for Breast Cancer Diagnosis
Plasma lipidomics profiling identified lipid biomarkers in distinguishing early-stage breast cancer from benign lesions.
A Mechanistic Tool for Studying Fungal Pathogens
This study presents an overview of lipid extraction, chromatographic separation and mass spectrometry employed in qualitative and quantitative sphingolipidomics in fungi.
Newborn Screening Test Developed For Rare, Deadly Neurological Disorder
Scientists have developed a new dried blood spot screening test for Niemann-Pick type C, with goal to speed diagnosis and treatment.
Grant to Fund Million Peaks Project
The European Research Council (ERC) has awarded a prestigious Advanced Grant to Prof. Peter Schoenmakers, Prof. Albert Polman and Prof. Huib Bakker, all three of whom work at the University of Amsterdam (UvA).
Altered Metabolism of Four Compounds Drives Glioblastoma Growth
Findings suggest new ways to treat the malignancy, slow its progression and reveal its extent more precisely.
Why Bearcats Smell Like Buttered Popcorn
Researchers pinpoint chemical compound that gives rare animal its popcorn-like scent.
Human Gut Microbiome Evolution
Westerners have a less-diverse gut microbiome compared to hunter-gatherers, but how and why these microbe collections diverged has largely remained a mystery.
Potential Diagnostic for Dengue Fever
Scientists from Colorado State University have explored the use of small molecules in patient serum for diagnosis of dengue fever and potentially predicting progression to the severe disease.
Non-Destructive Sensing of Fish Freshness
Is there any reliable way to know whether frozen fish is fresh or not?
SELECTBIO

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
3,000+ scientific and medical posters
A library of 2,500+ scientific videos on LabTube
4,500+ scientific videos
Close
Premium CrownJOIN TECHNOLOGY NETWORKS PREMIUM FOR FREE!