Biochemistry studies of different part on water spinach (ipomea aquatica) on leaf, petiole and stem purchased from wet market, Jeli Kelantan

Proximate analysis was conducted to determine the percentage content of crude protein, digestible and non- digestible protein, crude fat, carbohydrate, crude ash, crude fibre, moisture concentration and pH in leave, petiole and stem in water spinach. The study presents is to identify the significance differences of crude protein, digestible protein, crude fat, carbohydrate, crude ash, moisture concentration, crude fibre and pH between leave, petiole and stern of water spinach.This study also to identify which parts of spinach is highly nutritious in three part of water spinach either leave, petiole or stem. The water spinach (ipomea aquatica) was purchased from wet market, Jeli. Crude protein, digestible protein, crude fat, carbohydrate, crude ash, crude fibre, moisture content and pH in the samples were analyzed by using Kjeldahl method, Bradford method, Soxhlet extraction, ignition procedure, fibre bag procedure, dry analysis and pH meter respectively. The water spinach was analysed and showd no significant difference value between stem and petiole in term of crude ash and carbohydrate. Meanwhile, the result showed the significant difference between leaves, petioles and stems in term of protein, fibre, moisture, fat, and pH. Based on this experiment, the results showed that the percentages of moisture content and crude ash were higher compared to other elements in petioles of water spinach. While stem of water spinach had the highest percentage of crude protein, crude fat, crude fibre compare to leaves and petioles. It showed that stem of water spinach has the most complete than petiole and leave, while leaves had higher percentage in carbohydrate.