• Study on cultivation and developing Amorphophallus konjac and some other species of the genus Amorphophallus for functional food materials for treating diebet, cholesterol and obesity.
• From studying results and experimences collected from farmers to offer process of culture and breeding Amorphophallus plants.

Theoretical results:

• 4 species A. konjac, A. corrugatus, A. krausei and A. yunnanensis have been selected as a prospecting species for glucomannan production.
• Initial process of propagating and growing Amorphophallus from baby and mother tubers in Vietnam has been offered.
• The content of 5-8% glucomannan in fresh tuber (equal 17% of dried weight) of A. paeoniifolius and 10-15% glucomannan in fresh tuber (equal 34-50% of dried weight) of A. corrugates have been identified.
• The content of glucomannan in A. corrugatus is different at its growth periods. This content in fresh tuber in June, September and December changes from 1.5%, 4.5% and 15% respectively.

• The first time discovered a population of Amorphophallus konjac in Vietnam (Dong Van and Quan Ba district of Ha Giang province).
• The first time the content of glucomannan in the tubers of Amorphophallus paeoniifolius and A. corrugatus have been identified.
• From the studying results 4 species such as Amorphophallus corrugatus, A. krausei and A. yunnanensis have been selected as a prospective species for glucomannan materials.

For completing process of cultural and breeding Amorphophallus plants and applying in production, the stydies of growth and development as well breeding should be continued.