Sugar Analysis in Apple Juice by FTIR Spectroscopy with PLS Regression
نویسنده
چکیده
Fourier Transform mid-Infrared Spectroscopy (FT-MIR) shared with multivariate statistics was applied for the quantitative analysis of total sugar in 9 processed commercial fruit juices. PLSR (Partial least-squares regression) was used to generate calibration models that were cross-validated. As an analytical technique, the suitability of FTIR in mid-range (4000-1cm-4001cm) is investigates in this work. For calibrations of the sugar content in apple juice, matrix methods are used, in the range defined for apple juice in juice industry. Refractometer is used as a reference technique, which provides the validation of the FTIR results. FTIR is used for analyzing the results obtained from reference method in this word, as a non-destructive and fast technique.
منابع مشابه
The Detection of Quality Deterioration of Apple Juice by Near Infrared and Fluorescence Spectroscopy
Processing and storage of apple juice often triggers quality deterioration regarding nutritional valuable compounds and unfavourable color changes resulting from browning. Fluorescence and near-infrared (NIR) spectroscopy were applied to detect such quality loss in apple juice. Juice samples were produced from Malus x domestica 'Pinova', stored at 20 °C for 4 days or heated at 80 °C for 10 min ...
متن کاملA holistic high-throughput screening framework for biofuel feedstock assessment that characterises variations in soluble sugars and cell wall composition in Sorghum bicolor
BACKGROUND A major hindrance to the development of high yielding biofuel feedstocks is the ability to rapidly assess large populations for fermentable sugar yields. Whilst recent advances have outlined methods for the rapid assessment of biomass saccharification efficiency, none take into account the total biomass, or the soluble sugar fraction of the plant. Here we present a holistic high-thro...
متن کاملComparison of the HPLC method and FT-NIR analysis for quantification of glucose, fructose, and sucrose in intact apple fruits.
A rapid quantification method was developed and validated for simultaneous and nondestructive quantifying the constituent sugar concentrations of intact apples using Fourier transform near-infrared (FT-NIR) spectroscopy in diffuse reflectance mode. Multiplicative scatter correction (MSC), the second derivative of Savitsky-Golay, and mean centering were used as spectral preprocessing options. Ca...
متن کاملClassification of commercial apple beverages using a minimum set of mid-IR wavenumbers selected by Procrustes rotation.
When infrared spectral data are used in classification and/or multivariate regression methods there can be problems related to both chemical understanding and computation speed due to the large number of wavenumbers in each spectrum. Here, it is shown that the Procrustes rotation technique can be used to select a minimum set of spectral variables (wavenumbers) to perform classification and regr...
متن کاملDetermination of the Degree of Degradation of Frying Rapeseed Oil Using Fourier-Transform Infrared Spectroscopy Combined with Partial Least-Squares Regression
This rapid method for determining the degree of degradation of frying rapeseed oils uses Fourier-transform infrared (FTIR) spectroscopy combined with partial least-squares (PLS) regression. One hundred and fifty-six frying oil samples that degraded to different degrees by frying potatoes were scanned by an FTIR spectrometer using attenuated total reflectance (ATR). PLS regression with full cros...
متن کامل