Twelve healthy controls, eight patients with chronic hepatitis graded G2S2,twelve patients with compensated liver cirrhosis , twelve patients with decompensated liver cirrhosis are studied by L-1-13C-phenylalanine breath test which is longed for 6 hours and 24 breath samples per subject are collected.

Production of 2-phenylethylalcohol from L-phenylalanine by bioconversion in biphasic system;

Self-assembly of Octadecyl-L-phenylalanine Oligomer in Organic Solvents;

Study on adsorption equilibrium for the binary mixtures of L-tyrosine and L-phenylalanine on 732 cation-exchange resin;

The Transformation of Trans-Cinnamic Acid into L-Phenylalanine by Rhodotorula Glutinis;

To optimize the condition of bio-conversion in the process of bio-converting trans-cinnamic acid into L-Phenylalanine by phenylalanine ammonia-lyase(PAL), adding effectors was applied to increase the stability of PAL.

Under the orientation toward developing applied nanofiltration(NF) technology, studies were systematically carried out on the performance characterization and prediction of the spiral wound NF membranes, the components separation of glucose/sucrose solution, as well as the purification of L-phe（L-phenylalanine）fermentation broth.

With chemical and physical analysis and spectrum date, it was confirmed that the bioconversion product is L phenylalanine and the hydantoinase is L selective.