SamuraiBlue
Captain
This is why.This is a classic example of American patent laws being utterly senseless and frankly, stupid.
How anyone could be able to patent the particular use of a natural fruit is frankly stupid.
The process for the manufacture of a useful sweetener from luo han guo was in 1995 by . The patent states that natural luo han guo has many interfering flavors, which render it useless for general applications, and describes a process to remove them. The offending compounds are -containing volatile substances such as , , , and , which are formed from amino acids that contain , such as , , , and . So, the company developed a process for the removal of the interfering flavors.
In this process, the shell and seeds are removed, and the pulped fruit is made into a fruit concentrate or . Additional juice may be extracted from the remaining pulp by hot water. The juice is , slightly acidified to prevent and improve the flavor, then treated with or other to break down the . Most of the off-flavor agents are then removed with , such as or . Alternatively, the off-flavors can be absorbed by agents like or , which are removed by filtration; or with or other gelling agents. Most of the remaining sulfurous volatiles are then removed by low- . The juice is then to inactivate remaining natural enzymes and kill . The process is claimed to preserve a substantial fraction of the present in the fruit
Basically it goes through various cycles to remove unwanted taste.