CONSTRUCTION OF YAM

Yam is a crucial staple crop in West Africa, particularly Nigeria, yet its traditional processing into pounded yam (iyan) is highly labor-intensive, time-consuming, and yields inconsistent product quality. While the mechanization of this process through yam blending machines offers a solution for enhanced productivity, a critical operational challenge remains: persistent material leakage during blending. Such leakage compromises operational hygiene, leads to product loss, and risks damage to the machine's mechanical and electrical components, thus hindering wider commercial adoption. This study aimed to address this challenge by designing and constructing a functional yam blending machine with a primary focus on implementing robust sealing mechanisms and hygienic structural features to significantly minimize or eliminate material leakage during operation. The methodology employed a systematic design approach, utilizing a decision matrix to select an AC-powered motor for its high torque capacity and specifying food-grade Stainless Steel (SS304) for all food-contact surfaces. The detailed design prioritized secure interfaces, particularly for the blending shaft and chamber lid, to ensure a hermetic seal. Following construction, the prototype is intended for performance evaluation to assess its blending efficiency, output consistency, and the effectiveness of the integrated leakage prevention measures. The successful development of this machine is anticipated to substantially enhance productivity, uphold higher standards of food safety, and contribute meaningfully to the reliable and sustainable mechanization of the yam processing sector in Nigeria.