The advances in research on the three dipeptide sweeteners: aspartame, alitame and neotame, prepared from amino acids, were introduced and their applications and market were also described.

To establish a rapid analysis method for determination of common sweeteners such as acesulfame potassium, saccharin sodium, sodium cyclamate, aspavtame, and alitame in milk beverage by HPLC.

Screening of aspartame synthesizing strains;

Research advancement of security of aspartame;

in big shed covered with plastic film are practised, which include soil sterilization, proper planting density, hanging up and pruning vines, rational fertilization, harvest in time and controlling disease and pests.

Pharmacognostic studies on Tianniudali (Radix Millettia speciosa) and Kuniudali (Radix Millettia championi);