Open AccessSimple analytical method based on UV-visible spectroscopy coupled with SIMCA method for authentication of Lampung robusta coffee with geographic indications (GIs)
Author(s) -
Meinilwita Yulia,
Diding Suhandy
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1751/1/012079
Subject(s) - mathematics , chemometrics , geography , chemistry , chromatography
Lampung Robusta coffee got a geographic indication (GIs) protection from Indonesian government since 2014 with certificate number of ID G 000 000 026. This GIs coffee come from three different geographic origins in Lampung province: Lampung Barat, Tanggamus and Way Kanan. In this research, we evaluate the possible application of simple analytical method based on UV-visible spectroscopy coupled with SIMCA (soft independent modelling of class analogy) for authentication of Lampung Robusta coffee with GIs. Two types of Lampung Robusta coffee were used: GIs coffee from Lampung Barat and non-GIs coffee from Pesawaran. Each type consists of 50 samples of ground roasted coffee with 1 gram weight. The all samples were extracted using a hot distilled water and 3 mL aqueous samples were pipetted into 10 mm quartz cuvette. UV-visible spectral data were recorded in the range of 190-1100 nm. The chemometrics (PCA and SIMCA) was performed using selected preprocessed spectral data in the range of 240-430 nm. The PCA result showed that GIs coffee and non-GIs coffee can be well separated. The SIMCA classification was accepted with 100% of correct classification.