Determination of Catechin Content in Gambir Powder from Dried Gambir Leaves Quickly using FT NIR PLS Model
How to cite (IJASEIT) :
Andasuryani, Andasuryani, et al. “Determination of Catechin Content in Gambir Powder from Dried Gambir Leaves Quickly Using FT NIR PLS Model”. International Journal on Advanced Science, Engineering and Information Technology, vol. 4, no. 5, Oct. 2014, pp. 303-7, doi:10.18517/ijaseit.4.5.423.
Citation Format :
Conventional production process of gambir often produces gambir with low content of catechin. Engineering of production processes of gambir leaves to produce gambir powder has been developed by previous researchers. The objective of this study was to develop a calibration model to predict the content of catechin in gambir powder from dried gambir leaves quickly using FT-NIR PLS model. Reflectance spectra of gambir powder from dried gambir leaves obtained at a wavelength of 1000 to 2500 nm. Spectra pre-processing treatment method used was a combination between normalization between 0 and 1 (n01) method and first derivative Savitzky-Golay 9 points (dg1). The result showed that correlation coefficient and standard error of prediction (SEP) were 0.99 and 2.10 % respectively, obtained when used 6 factors of partial least square (PLS). Calibration model developed has shown higher accuracy and precision to predict catechin content of gambir powder from dried gambir leaves.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).