The Designing and Building of a Ripe Banana Blender

Abstract

Nowadays, there are 3types of commercial bananas cultivated in Thailand: Namwa bananas, Khai bananas, and Hom bananas, each of these is rich in different nutrients. Eating them regularly is extremely beneficial to the body. Besides eating ripe bananas as fruits or using them for cooking, bananas can also be processed into various snacks such as banana preserves, banana chips, dried bananas, bananas baked in butter, toffee, banana flour and canned bananas in syrup. Before processing the bananas into these snacks, they need to be blended. This research is therefore aimed at (1) designing and constructing a ripe banana blender. (2) To determine the efficiency of banana blenders by comparative study, using 2 types of blades: Type 1. 3 straight blades. The length of the top and bottom blades are 4x21 centimeters, and that of the middle blade is 4x19 centimeters. Type 2. There are 3 curved blades. The upper and lower blade length are 4x21 centimeters. The middle blade is 4x19 centimeters. The upper blade tip is bent up to 170 degrees. The lower blade is bent down to 170 degrees, with a rotational speed of 1,450 rpm. In the experiment, 5 kilograms of banana and 1 liter of water are used, to determine the efficiency of the straight and curved blades, the best time to blend the ripe bananas and to analyze the results of the experiment. The results of the experiment show that the type 2 blades had the best efficiency and took the least amount of time to blend the bananas. The average blending time was 46.08 seconds. For the amount of bananas that were not blended, the average was 0 grams, calculated as 0 percent. The experiment used 5 kilograms of bananas and 1 liter of water. The total weight of the bananas and water was 6 kilograms. After blending the ripe bananas with a blender, the average weight was 6 kilograms, calculated as 100 percent.