L-ascorbyl palmitate (AsA-Pal-Enz)was synthesized by using an immobilized lipase from Aspergillus niger. Acomparison of antioxidative effects between L-ascorbic acid (AsA) and AsA-Pal-Enz was determined in terms of 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging. The results indicate that the AsA-Pal-Enz was effective in preventing lipid oxidation, while the antioxidative activity in authentic AsA-Pal was lower.The activity of AsA-Pal-Enz was very stable than AsA-Pal standard during heating.
Tri Agus Siswoyo
Pusat Penelitian Biologi Molekul dan Jurusan Agronomi, Fakultas Pertanian Universitas Jember, Jln Kalimantan III/23, Jember 68121
Jurusan Biologi, Fakultas Matematika dan Pengetahuan Alam, Universitas Brawijaya