Quality Evaluation of Robusta Coffee Bean from Four Superior Clones with Semi-Wet Processing in Lampung Province

Abstract

The purpose of this study was to evaluate several superior clones of Robusta coffee through semi-wet processingg. The research was conducted at the Lampung AIAT Experimental Garden in Natar, Way Haron Village, the Lampung AIAT Laboratory and the Polinela Food Laboratory from April 2019 to October 2019. The clones used in the study were BP 534, BP 939, BP 436 and SA 203. Harvesting was carried out by red picking and then the berries were sorted. Analysis of the quality of coffee beans refers to Indonesian National Standard (SNI) 01-2907-2008 and SNI 01-3542-2004 for ground coffee. The results showed that clones BP 534 and BP 939 were classified as quality I, BP 436 and SA 203 clones were classified as quality II. The BP 534 have the highest protein, ash and carbohydrate content with the lowest fat content, while the fiber value is 17,389%. The color values (L) of coffee beans were ranged from 42.907 to 47.250. There was an increase in the L value from roasted coffee to ground coffee for all clones. The quality of ground coffee from four Robusta coffee clones meets the quality standards based on SNI 01-3542-2004. Ground coffee from clone BP 534 was the best compared to other clones.