Design, fabrication and performance evaluation of portable milling machine for tomato (Solanum lycopersicum)
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Date
2024
Authors
Renzon C. Tadeo
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Abstract
The global tomato market has faced a downturn in both consumption and production, leading to significant oversupply and subsequent food waste. Addressing this issue, the study aimed to design, fabricate and evaluate a cost-effective, portable milling machine, adapted from an electric fan motor, to enhance tomato preservation. The machine, constructed with locally sourced materials, measures255 mm x 150 mm x 560 mm (L x W x H) and comprises nine key components, including a grinding plate hammer, chain and disc blade. the machine's performance was assessed across multiple parameters: moisture content, particle size distribution, milling capacity, efficiency and electrical consumption.
Statistically, results revealed that the hammer blade produced the most desirable particle size (0.295 mm), optimal for food seasoning, and achieved the highest milling capacity (30 g/min) and efficiency (72.93%). Comparatively, the chain blade demonstrated moderate efficiency (50.67%), and the disc blade showed the lowest efficiency (61.33%). the machine's operational cost was determined to be 316.70 Php per year, with a breakeven point at 22.71kg/year and a payback period of approximately 1.03 years.
This study concludes that the portable milling machine is a viable, affordable solution for low-volume tomato milling, significantly reducing food waste and offering a cost-efficient require substantial investment and operational cost. The machine presents an effective strategy for small-scale applications, ensuring the preservation and utility of excess tomato produce.