1. Amino acid analysis of protein hydrolysates by lithium buffer system
SATHORN SUWAN

2. Effect of variety and age on physicochemical properties of starch from sweet potatoes grown in thailand
VANNA TULYATHAN, CHAIYUTE THUNPITHAYAKUL AND WECHAYAN THANABODEEPAT

3. Genetic manipulation of penicillin acylase in bacillus sp.
WATANALAI PANBANGRED, SAUNG UDOMVARAPHUNT AND VITHAYA MEEVOOTISOM

4. Impermeable layers in salt affected sandy soils in northeast thailand
NAYANA PUENGPANA, TERDSAK SUBHASARAM, PONGSIRI PATCHARAPREECHA, KENZO MIURA AND HIDENORI WADA