Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7594436 | Food Chemistry | 2015 | 22 Pages |
Abstract
The aim of this study was to evaluate the potential of the successive projection algorithm for interval selection in partial least squares (iSPA-PLS) together with near-infrared reflectance spectroscopy (NIRS) as a feasible method to determine the total anthocyanin content (TAC) of intact jaboticaba fruit [Myrciaria jaboticaba (Vell.) O. Berg]. A total of 579 jaboticaba fruit were collected in three different harvests in three separate years (2011 and 2013). The correlation coefficients between the predicted and measured TAC were between 0.65 and 0.89, the RMSEPs were 7.55 g kgâ1 and 9.35 g kgâ1 (good accuracy) for prediction set, respectively. The RPD ratios for TAC were in the range of 2.57-3.19 with iSPA-PLS, which showed better predictive performance (acceptable precision). These results suggest that the NIR spectroscopy and wavelength selection (iSPA-PLS) algorithm can be used to determine the TAC of intact jaboticaba fruit.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Nathália Cristina Torres Mariani, Gustavo Henrique de Almeida Teixeira, Kássio Michell Gomes de Lima, Thayara Bittencourt Morgenstern, Viviani Nardini, LuÃs Carlos Cunha Júnior,