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Separation of seeds and pulp of mangosteen fruit is still done manually. Separation of seeds and pulp in general has not been done mechanically and systematically. In fact, if it is reviewed further, there needs to be a system of seed and pulp separation so as to produce mangosteen juice that can be consumed and have high economic value. Seed and fruit separation machines have been developed. But the product quantity is low and the quality of pulp is below standard. The purpose of this research is 1) to obtain optimal machine design to separate pulp and mangosteen seeds, 2) to analyze the performance of various mechanisms of seed separation and pulp of mangosteen fruit. The research procedure includes physical identification and characteristics of mangosteen, conceptualization, evaluation, and optimization, analysis, engineering design, manufacture, and testing. There are three mechanisms studied to separate the seeds and pulp of the mangosteen fruit, 1) the horizontal cylinder mechanism with a rotating brush, 2) the vertical cylinder mechanism with a rotating brush, 3) vertical cylinder with a stationary brush. Based on the test results from the three models it is found that the best mechanism that is feasible to be developed for the prototype is a horizontal cylinder mechanism with a rotating brush. The quality value of the separation as measured using the chromamometer obtained ∆E value of -2.8. In the process of separation is not obtained

Concept Evaluation of Three Modes Mechanisms for Separated of Pulp and Seed of Mangosteen Fruits (Garcinia mangostana L.)