Abstract
The formation of amylose complexes with eight lysophosphatidylcholines; 1-capryl lysophosphatidylcholine (LPC-C 10 : 0), 1-lauroyl LPC (LPC-C 12 : 0), 1-myristoyl LPC (LPC-C 14 : 0), 1-palmitoyl LPC (LPC-C 16 : 0), 1-stearoyl LPC (LPC-C 18 : 0), 1-oleoyl LPC (LPC-C 18 : 1), 1-linoleoyl LPC (LPC-18 : 2) and 1-arachidoyl LPC (LPC-C 20 : 0), was conducted in aqueous solution using a commercial amylose with an average degree of polymerization (DP) of 18. The chain distributions of amylose precipitated by forming a complex in aqueous solution (2°C) were analyzed by high-performance anion exchange chromatography with a pulsed amperometric detector (HPAEC-PAD). The smallest DPs of amylose forming complexes with LPC-C 14 : 0, LPC-C 16 : 0, LPC-C 18 : 0, LPC-C 18 : 1, LPC-18 : 2 and LPC-C 20 : 0 were DP 27, DP 29, DP 29, DP 31, DP 31 and DP 35, respectively. The principal amylose chains found in complexes with LPC-C 14 : 0, LPC-C 16 : 0, LPC-C 18 : 0, LPC-C 18 : 1, LPC-18 : 2 and LPC-C 20 : 0 were DP 34-36, DP 32-34, DP 33-35, DP 34-36, DP 36-38 and DP 36-38, respectively.
