Abstract: The Toona sinensis extract of the present invention is prepared using supercritical fluid technique, wherein the method includes steps of: (a) drying the leaves of T. sinensis; (b) pulverizing the leaves as particles; and (c) extracting the particles with supercritical carbon dioxide to obtain the T. sinensis extract. This supercritical T. sinensis extract not only can decrease blood sugar level, but also promotes lipid degradation, inhibits the formation of huge lipid droplet and improves the metabolic symptoms. Accordingly, the T. sinensis extract further is able to be prepared as food supplement and pharmaceuticals.

Abstract: The Toona sinensis extract of the present invention is prepared using supercritical fluid technique, wherein the method includes steps of: (a) drying the leaves of T. sinensis; (b) pulverizing the leaves as particles; and (c) extracting the particles with supercritical carbon dioxide to obtain the T. sinensis extract. This supercritical T. sinensis extract not only can decrease blood sugar level, but also promotes lipid degradation, inhibits the formation of huge lipid droplet and improves the metabolic symptoms. Accordingly, the T. sinensis extract further is able to be prepared as food supplement and pharmaceuticals.

Abstract: The Toona sinensis extract of the present invention is prepared using supercritical fluid technique, wherein the method includes steps of: (a) drying the leaves of T. sinensis; (b) pulverizing the leaves as particles; and (c) extracting the particles with supercritical carbon dioxide to obtain the T. sinensis extract. This supercritical T. sinensis extract not only can decrease blood sugar level, but also promotes lipid degradation, inhibits the formation of huge lipid droplet and improves the metabolic symptoms. Accordingly, the T. sinensis extract further is able to be prepared as food supplement and pharmaceuticals.

Abstract: The device includes a clamping assembly which has a stationary upright post with upper and lower casings coaxially mounted to the upright post, a threaded shaft to adjust a vertical height of the upper and lower casings, a drilling assembly which is adjacent to the clamping assembly and which has first and second drilling bits that respectively extends toward an axis of the upright post in a parallel manner and a worm mechanism for adjusting a vertical height between the two drilling bits and an index apparatus which can rotate the clamping assembly to a predetermined angle relative to the drilling assembly. The upper and lower casings have radially movable pieces with clamping members thereon. A synchronous moving unit moves the movable pieces relative to the upright post to define a distance which is equal to a radius of curvature of a curved plate that is to be clamped and drilled by the device.