| dc.description.abstract | Pulping of coffee there were still crushed coffee beans and unpeeled
coffee. Quality of coffee affected by rotor gap and blade variation. This research
was held to test the rotor gap and blade variation of parameters measured were
on the effective capacity of the equipment, unpeeled beans percentage, crushed
beans percentage, percentage beans in wet skin output and percentage wet skin in
beans output. This research using factorial completely randomized design with
two factors which were rotor gap (0,8, 1,0, 1,2, 1,4 cm) and variant of blade
(linear, curve, triangle and half of circle).
The result showed that the rotor gap had significantly affected all
parameters. Variant of blade had significantly affected all parameters except
percentage beans in wet skin output. The interaction of the two factors had
significantly affected all parameters except percentage beans in wet skin output
and percentage wet skin in beans output. The best result was the combination at
1,0 cm gap with half of circle blade which resulted effective capacity in amount of
170,787 kg/hour, unpeeled beans percentage was 8,3%, crushed beans
percentage was 2,8%, percentage beans in wet skin output was 9,8%, percentage
wet skin in beans output was 8,3%. | en_US |
