Analisis Fruit Removal Force (FRF) Buah Kopi Robusta di Desa Pakis, Sukorambi, Jember
Keywords:
Coffee fruit, fruit detachment force, fruit removal force, fruit ripeness level, robustaAbstract
Fruit Removal Force (FRF) is the force required to detach a coffee fruit from its stem, expressed in Newtons (N). This study aims to analyze the relationship between the fruit ripeness level and the FRF value of Robusta coffee. Measurements were conducted in a coffee plantation located in Jember Regency, East Java, using a modified tensile meter instrument. Three coffee plants were randomly selected, and from each plant, 90 fruit samples were collected representing three ripeness levels red, orange, and green resulting in a total of 270 coffee fruits. Data analysis using one-way ANOVA showed that based on the fruit color, the P-values for red (0.670), orange (0.796), and green (0.149) fruits were higher than the 5% significance level, indicating no significant differences among plants. However, the analysis based on plant samples showed P-values < 0.05, indicating significant differences among ripeness levels within each plant. The results revealed that as the coffee fruits ripen, the FRF value decreases, meaning that riper fruits require less force to detach from the stem
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