Determination of the Characteristics and Classification of Near-Infrared Spectra of Patchouli Oil (Pogostemon Cablin Benth.) from Different Origin

2nd International Conference on Agricultural Engineering for Sustainable Agricultural Production

Diego, M.C.R.^1 ; Purwanto, Y.A.^1 ; Sutrisno, S.^1 ; Budiastra, I.W.^1

Department of Mechanical and Biosystem Engineering, Bogor Agricultural University, Indonesia^1

关键词: Absorbance spectrum;    Composition analysis;    Different origins;    Gas chromatography-mass spectrometry;    Near infrared spectra;    Nondestructive methods;    Pogostemon cablin benth;    Principal Components;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/147/1/012013/pdf
DOI  :  10.1088/1755-1315/147/1/012013

来源: IOP

【 摘 要 】

Research related to the non-destructive method of near-infrared (NIR) spectroscopy in aromatic oil is still in development in Indonesia. The objectives of the study were to determine the characteristics of the near-infrared spectra of patchouli oil and classify it based on its origin. The samples were selected from seven different places in Indonesia (Bogor and Garut from West Java, Aceh, and Jambi from Sumatra and Konawe, Masamba and Kolaka from Sulawesi Island). The spectral data of patchouli oil was obtained by FT-NIR spectrometer at the wavelength of 1000-2500 nm, and after that, the samples were subjected to composition analysis using Gas Chromatography-Mass Spectrometry. The transmittance and absorbance spectra were analyzed and then principal component analysis (PCA) was carried out. Discriminant analysis (DA) of the principal component was developed to classify patchouli oil based on its origin. The result shows that the data of both spectra (transmittance and absorbance spectra) by the PC analysis give a similar result for discriminating the seven types of patchouli oil due to their distribution and behavior. The DA of the three principal component in both data processed spectra could classify patchouli oil accurately. This result exposed that NIR spectroscopy can be successfully used as a correct method to classify patchouli oil based on its origin.