binding , it is not only one kind of natural food additive but also one kind of ideal assistant healthcare food, it is recommended by WHO as one of the best healthcare foods for human being in 21 century. As Konjac is suitable for mild temperature and unsuitable for high temperature, it mainly grows up in mountain areas and hilly lands those are 850 meters above sea level, and annual average ambient temperature is required at 17.5~ 25 .
In China, Konjac is mainly planted in the mount