2.1. Materials and chemicals
Empty fruit bunch was collected from palm tree farm. Hydrogenperoxide, sodium hydroxide, glacial acetic acid, sodium carbon-ate, sulfuric acid, potassium permanganate, potassium bromide,potassium iodide, potassium bromate, thiourea dioxie, acrylic acidand sodium thiosulfate were all laboratory grade chemicals. Thenon-ionic wetting agent Texazym T was kindly supplied by InotexCompany.