lactone process
6.BIOLOGICAL SYNTHESIS OF L-ASCORBIC ACID THE OXIDATION OF L-GULONO-γ-LACTONE AND L-GALACTONO-γ-LACTONE TO L-ASCORBIC ACID
7.Developing and Stabilizing Effect of Activated Clay on Crystal Violet Lactone
9.Principal constituent: Andrographis Paniculta lactone, clove oil and many kinds of sterilizations active factor.
10.Advances in the Synthesis of a Key Intermediate of Prostaglandins——Chiral Corey Lactone

