Paper Info
Title
Design and Fabrication of a Real-Time Measurement System for the Capsaicinoid Content of Korean Red Pepper (Capsicum annuum L.) Powder by Visible and Near-Infrared Spectroscopy.
Abstract
This research aims to design and fabricate a system to measure the capsaicinoid content of red pepper powder in a non-destructive and rapid method using visible and near infrared spectroscopy (VNIR). The developed system scans a well-leveled powder surface continuously to minimize the influence of the placenta distribution, thus acquiring stable and representative reflectance spectra. The system incorporates flat belts driven by a sample input hopper and stepping motor, a powder surface leveler, charge-coupled device (CCD) image sensor-embedded VNIR spectrometer, fiber optic probe, and tungsten halogen lamp, and an automated reference measuring unit with a reference panel to measure the standard spectrum. The operation program includes device interface, standard reflectivity measurement, and a graphical user interface to measure the capsaicinoid content. A partial least square regression (PLSR) model was developed to predict the capsaicinoid content; 44 red pepper powder samples whose measured capsaicinoid content ranged 13.45-159.48 mg/100 g by per high-performance liquid chromatography (HPLC) and 1242 VNIR absorbance spectra acquired by the pungency measurement system were used. The determination coefficient of validation (R-V(2)) and standard error of prediction (SEP) for the model with the first-order derivative pretreatment method for Korean red pepper powder were 0.8484 and +/- 13.6388 mg/100 g, respectively.
Year
DOI
Venue
2015
10.3390/s151127420
SENSORS
Keywords
Field
DocType
visible and near-infrared,spectroscopy,capsaicinoid content,red pepper powder,partial least square regression
VNIR,Analytical chemistry,Halogen lamp,Absorbance,Near-infrared spectroscopy,Spectrometer,Pepper,Engineering,Capsaicinoid,Spectroscopy
Journal
Volume
Issue
ISSN
15
11.0
1424-8220
Citations 
PageRank 
References 
2
0.64
1
Authors
4
Name
Order
Citations
PageRank
Jongguk Lim183.59
Giyoung Kim2114.02
Changyeun Mo382.91
Moon S. Kim456.97