Non-Destructive Measurement of Soluble Solids Content and Vitamin C in Gannan Navel Oranges by Vis-NIR Spectroscopy
The potential of visible and near-infrared (Vis-NIR) spectroscopy was investigated for its ability to nondestructively measurement soluble solids content (SSC) and vitamin C (VC) in intact Gannan navel oranges. A total of 238 navel oranges were used for diffuse reflectance Vis-NIR in 350-1800 nm range. In this study, calibration models relating Vis-NIR spectra to SSC and VC were developed based on partial least squares regression (PLSR) with respect to the standard normal variate (SNV) absorbance spectra. Reasonable prediction results (rp=0.77, SEP=0.65° Brix and RSE=4.96％) were obtained for SSC, while prediction results (rp=0.54, SEP=4.40 mg/100 g and RSE=8.50％) for VC could not be unacceptable. Multiple linear regression (MLR) models combined with the fingerprint spectra could obtain better prediction performance for SSC and VC in navel oranges, resulting in rp of 0.80 and 0.55, and SEP of 0.61°Brix and 4.36 mg/100 g for SSC and VC, respectively. The fingerprint spectra analysis is very useful in the field of food chemistry, and further study on other materials is needed to apply this technique.
Visible and Near-Infrared Spectroscopy Non-Destructive Measurement Soluble Solids Content Vitamin C Gannan Navel Oranges
Yande Liu Xudong Sun Xiaoling Dong Aiguo Ouyang Rongjie Gao Hailiang Zhang Yuanyuan Pan
School of Mechatronics Engineering, East China Jiaotong University, Nanchang 330013, China Foreign Languages College, Jiangxi Normal University, Nanchang 330022, China
国际会议
南昌
英文
1133-1139
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）