the potential of fourier transform near-infrared (ft-nir) spectroscopy technique was applied to determine moisture and soluble solids content of shahani date fruit. spectral acquisitions were carried out in reflectance mode using a ft-nir spectrophotometer in the range of 12000- 4000cm-1. three different preprocessing methods namely: multiplicative scatter correction (msc), first and second der...

Uninformative biological variability elimination methods were studied in the near-infrared calibration model for predicting the soluble solids content of apples. Four different preprocessing methods, namely, Savitzky-Golay smoothing, multiplicative scatter correction, standard normal variate, and mean normalization, as well as their combinations were conducted on raw Fourier transform near-infr...

Visible and near infrared (Vis/NIR) spectroscopy was investigated for the fast analysis of superoxide dismutase (SOD) activity in barley (Hordeum vulgare L.) leaves. Seven different spectra preprocessing methods were compared. Four regression methods were used for comparison of prediction performance, including partial least squares (PLS), multiple linear regression (MLR), least squares-support...

This study was conducted to develop fast and nondestructive models for the discrimination of different farming methods determine geographical origin rice samples from administrative regions in China using near-infrared (NIR) spectroscopy. Principal component analysis (PCA) partial least squares discriminant (PLS-DA) were applied build NIR spectral models. Norris smoothing derivative (NSD) multi...

Soluble solid content (SSC) is a major quality index of kiwifruits. Visible near-infrared (Vis/NIR) hyperspectral imaging with the genetic algorithm (GA) was adopted in this study to realize non-destructive prediction kiwifruit SSC. A laboratory Vis/NIR system established collect 120 samples at range 400–1100 nm. The average reflectance spectral data region interest were obtained after differen...

In order to address the challenge of early detection cotton verticillium wilt disease, naturally infected plants in field, which were divided into five categories based on degree disease severity, have been investigated this study. Canopies analyzed with spectral data measured, and various preprocessing techniques, including multiplicative scatter correction (MSC) MSC-continuous wavelet analysi...

Near-infrared spectroscopy (NIRS), a rapid and efficient tool, was used to determine the total amount of nine ginsenosides in Panax ginseng. In the study, the regression models were established using multivariate regression methods with the results from conventional chemical analytical methods as reference values. The multivariate regression methods, partial least squares regression (PLSR) and ...

Dental caries is one of the most prevalent chronic diseases. Early detection prominent to avoid tooth weakening or worst loss. UV absorption spectroscopy a non-invasive techniqueused for salivary alpha-amylase which are increasing in presence caries. Spectrum acquired from patient at Faculty dentistry, UKM showed significant peak around 260-300nm correspond amino acid found alpha-amylase.The sp...

abstract the assessment of ripeness is a major part of quality evaluation and depends on several factors such as soluble solid content (ssc), acidity and firmness. most of the methods that measure these qualities are destructive. so it is essential to develop an efficient and nondestructive method for measuring internal attributes of fruit. the objective of this study was to investigate visible...

a non-destructive, rapid and low-cost determination of date fruit moisture content is one of the most determining factors in maturity assessment and processing of this valuable product. on the other hand, the potential of near infrared (nir) spectroscopy in nondestructive internal quality evaluation of agricultural products has been proved throughout several studies. in this research, three mod...