Khaberni - A recent scientific study revealed that usually neglected parts of walnut fruits, such as the shell and the green outer husk surrounding them, have significant health benefits.
During the study, researchers analyzed different parts of the walnut fruit, such as the kernel, hard shell, and green outer husk that wraps the fruit before harvest, and found that the concentration of bioactive compounds was higher in the outer parts of the fruit, surpassing those found in the kernel.
The analysis results showed that walnut shells, for example, are rich in phenolic compounds, including ellagic acid and catechins, which are known for their anti-inflammatory properties and benefits for the nerves.
The scientists also found that the green outer husk of walnut fruits contains a high level of carotenoids, including beta-carotene, which plays an important role in supporting immunity and protecting cells, whereas the kernel of the walnut fruit is rich in vitamin E, known for its antioxidant properties.
Researchers believe that the findings could open up possibilities for using nut residues in several industries, such as in the manufacture of dietary supplements and cosmetics, and even in packaging and product wrapping materials. Considering that up to 70% of the mass of nuts typically remains unused, this could represent an important step towards more sustainable production.
