2. Materials and Methods
2.1. Preparation of corn silk powder
Sweet corns were obtained from a local market in Bangkok, Thailand. The husks and silks were eliminated from
its fruit. Corn silks were washed and dried in hot air oven at 55°C for 8 h. Dried samples were ground into powder
by electrical blender (Moulinex, DPA141, USA)and sieved through a 100-mesh screen (Prapasuwannakul, 2014).
The dried corn silk powder was kept in seal plastic bag at below 4°C until analysis.