可见近红外高光谱成像检测西米粉中次氯酸钙的可行性

Ming Hao Lee, A. Saptoro, K. Lim, H. Chua, T. Vu, Nurleyna Yunus, Hasnain Hussain
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引用次数: 0

摘要

一般公众对西米面粉质量的看法是基于感知到的颜色外观。由于次氯酸钙(CHC)等漂白剂的过量使用改变了产品的颜色,这增加了食品欺诈的可能性。传统的检测和定量CHC的方法,如滴定法和色谱法,耗时、昂贵且仅限于实验室设置。本研究采用可见光近红外高光谱成像(Vis-NIR HSI)与偏最小二乘回归(PLSR)模型相结合的方法,对纯西米粉中的CHC进行了准确、快速的定量分析。CHC-纯西米混合物样品的CHC浓度为0.005 w/w% ~ 2 w/w%,可获得光谱区域为400 ~ 1000 nm的高光谱图像。从高光谱图像中提取平均反射率光谱数据,并将其作为PLSR模型的输入,用于预测CHC浓度。PLSR模型在本研究中取得了令人满意的预测结果,Rp = 0.9509, RMSEP = 0.1655, MAPEP为3.801%,证明Vis-NIR HSI可以有效预测西米粉中CHC的浓度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Feasibility of Visible Near-Infrared Hyperspectral Imaging in Detection of Calcium Hypochlorite in Sago Flour
The general public perspective on sago flour quality is based on the perceived colour appearances. This contributed to the potential of food fraud by excessive usage of bleaching agents such as calcium hypochlorite (CHC) to alter the product’s colour. Conventional methods to detect and quantify CHC such as titration and chromatography are time-consuming, expensive and limited to laboratory setups only. In this research, visible near-infrared hyperspectral imaging (Vis-NIR HSI) was combined with partial least squares regression (PLSR) model to quantify CHC in pure sago flour accurately and rapidly. Hyperspectral images with the spectral region of 400 nm to 1000 nm were captured for CHC-pure sago mixture samples with CHC concentration ranging from 0.005 w/w% to 2 w/w%. Mean reflectance spectral data was extracted from the hyperspectral images, and was used as inputs to develop the PLSR model to predict the CHC concentration. The PLSR model achieved the commendable predictive results in this study, with Rp = 0.9509, RMSEP = 0.1655 and MAPEP of 3.801%, proving that Vis-NIR HSI can effectively predict the concentration of CHC in sago flour.
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来源期刊
自引率
0.00%
发文量
342
审稿时长
6 weeks
期刊介绍: MATEC Web of Conferences is an Open Access publication series dedicated to archiving conference proceedings dealing with all fundamental and applied research aspects related to Materials science, Engineering and Chemistry. All engineering disciplines are covered by the aims and scope of the journal: civil, naval, mechanical, chemical, and electrical engineering as well as nanotechnology and metrology. The journal concerns also all materials in regard to their physical-chemical characterization, implementation, resistance in their environment… Other subdisciples of chemistry, such as analytical chemistry, petrochemistry, organic chemistry…, and even pharmacology, are also welcome. MATEC Web of Conferences offers a wide range of services from the organization of the submission of conference proceedings to the worldwide dissemination of the conference papers. It provides an efficient archiving solution, ensuring maximum exposure and wide indexing of scientific conference proceedings. Proceedings are published under the scientific responsibility of the conference editors.
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