Loquat fruit health benefit and leaf extract
December 22 2015 by
Ray Sahelian, M.D.

Loquat is an evergreen tree with a delicious loquat fruit. The loquat tree grows to about 20 ft with large leaves. Scented and furry looking white flowers grow in terminal clusters in late fall. They are followed by small, edible yellow fruits in spring. The Loquat tree is native to China and Japan. The loquat tree is grown for ornamental purpose in the southeastern and western parts of the United States. In frost-free areas, the loquat tree is also grown for its delicious fruit. The leaves have a history of use in traditional Chinese medicine. Loquat (Eriobotrya japonica) belongs to the plant family Rosaceae.

Loquat leaf benefit
The leaves contain corosolic acid which may play a role in blood sugar management. The long term benefit and side effects of loquat leaf extract have not yet been determined.

Int J Mol Med. 2015. Loquat leaf extract enhances myogenic differentiation, improves muscle function and attenuates muscle loss in aged rats.

Loquat fruit and peel
Beta-Carotene and lutein are the major carotenoids in loquat peel, which accounts for about 60% of the total colored carotenoids in both red- and white-fleshed cultivars.

Molecules. 2013. Cell suspension culture of Eriobotrya japonica regulates the diabetic and hyperlipidemic signs of high-fat-fed mice.

OptimPure Loquat leaf extract
OptiPure Brand Chemco Industries Inc has added a new raw material for blood glucose metabolism derived from the leaves of the loquat tree. OptiPure will offer loquat leaf extract, standardized to 1% corosolic acid in its portfolio of unique ingredients. The patent-pending extraction process for this plant material was developed by Tokiwa Phytochemical Co., Ltd., Japan, where they use ethanol to extract corosolic acid from loquat leaves. They spent 10 years of research and development to make this technology available. A partnership has been established between Tokiwa and Kenko Corporation, of which OptiPure is a member company of their global network. OptiPure will be the exclusive supplier of this raw material.