中国食品添加剂2025，Vol.36Issue(6)：170-176,7.DOI:10.19804/j.issn1006-2513.2025.6.022
基于全透射紫外可见-近红外光谱的甜菊糖生产外排水中甜菊糖苷总苷(TSG)含量在线检测研究
Online detection of total steviol glycosides(TSG)content in stevia sugar production effluent based on full-transmission ultraviolet-visible-near-infrared spectroscopy
摘要
Abstract
This study established a method for online detection of stevioside concentration in stevia sugar production effluent based on UV-Vis-NIR spectroscopy.Using transmittance mode,a series of concentrations of stevia sugar production effluent samples and corresponding spectral data were obtained.Principal component analysis was employed to eliminate abnormal samples,and the original spectral data were preprocessed using D1,SG,SNV,and their combinations.Various preprocessing methods were analyzed to select high-loading,highly correlated variables as features,and the Partial Least Squares(PLS)method was utilized to establish a model for the TSG content in stevia sugar production effluent.The results indicated that the SNV+FD+SG preprocessing method,combined with PLS factor loadings and the Important Variables feature selection method,yielded the best modeling results,with RMSECV and RMSECP both ≤ 0.0250,and Rv2 and Rp2 both ≥ 0.96.This demonstrated that the method could control the detection error of stevioside content in stevia sugar production effluent to within±0.05％and reduced the fluctuation range of stevioside concentration in stevia sugar production effluent from 0.001～0.30 mg/mL to 0.04～0.12 mg/mL.This achievement enabled real-time monitoring and precise control of stevioside content in stevia sugar production effluent,contributing to increased utilization of resin columns and reduced discharge of steviosides,and holds significant implications for the control of adsorption processes in the plant extraction industry.关键词
甜菊糖苷/外排水/在线/紫外可见-近红外光谱Key words
stevioside/effluent/online/ultraviolet-visible-near-infrared spectroscopy分类
轻工纺织引用本文复制引用
吉桂珍,张苹苹,杨啸,赵锦涛,石文杰..基于全透射紫外可见-近红外光谱的甜菊糖生产外排水中甜菊糖苷总苷(TSG)含量在线检测研究[J].中国食品添加剂,2025,36(6):170-176,7.基金项目
高品质零热量天然甜味剂生产技术创新及智能制造产业化示范项目 （）
