Natural Compound in Apple Peels May Help Combat Gum Disease
Researchers at São Paulo State University in Brazil have discovered that a natural substance found in apple peels, known as morin, could play a role in controlling periodontal disease. Morin is a flavonoid also present in foods like guava leaves, figs, some teas, and almonds. It is recognized for its antimicrobial, anti-inflammatory, and antioxidant properties, which may make it valuable for oral health applications.
The team conducted laboratory studies using bacterial biofilm models that mimic the environment in gum disease. They found that morin was effective at reducing bacterial growth and inflammation. To make it suitable for dental use, the compound was processed into a powder form through encapsulation with biocompatible polymers. This powder offers controlled release and has the potential to be added to oral care products such as gels, rinses, or toothpaste.
According to lead researcher Dr. Luciana Solera Sales, this approach could especially benefit patients who find regular toothbrushing difficult—for example, older adults or individuals with disabilities. By integrating morin into oral hygiene routines, these groups could receive additional protection against gum infections.
However, the researchers stressed that simply eating apples or other fruits is not enough to achieve these effects. The compound must be extracted and formulated in a way that allows it to act effectively against periodontal pathogens.
Future plans include testing in animals and, eventually, clinical trials with humans. The team also aims to examine possible drawbacks, such as whether morin might stain teeth, and to study its effect on maintaining a healthy balance of bacteria in the mouth.
If proven effective, morin could represent an inexpensive and widely available natural solution to help reduce the global impact of gum disease and improve overall oral health.
Source
Article: Apple peel extract found to fight periodontal disease
Publisher: Dentistry.co.uk
Date: September 18, 2025
Link: Dentistry.co.uk