Application of Mid-Infrared Spectroscopy for Determination of Insoluble Dietary Fiber Content in Moso Bamboo Shoot
Mid-infrared (MIR) spectroscopy was used to measure insoluble dietary fiber content (IDFC) in moso bamboo shoot. A total of 140 moso bamboo shoot samples with various IDFC levels between 0.46% and 0.213% were separated into two groups, as calibration and validation sets. Reference IDFC in moso bamboo shoot was verified using AOAC 991.43 method. MIR absorbance spectra from 400 cm−1 to 4000 cm−1 were collected using the calibration and validation sets. Partial least squares (PLS) analysis was performed on the calibration set, and calibration models were developed using original MIR absorbance spectra and its Savitzky-Golay first derivative spectra. Standard error of calibration (SEC) and coefficient of multiple determinations (R 2) of the calibration models were calculated to select the best model. Savitzky-Golay first derivative spectra calibration model was found to be the best, with the lowest SEC of 0.007 and highest R 2 of 0.968. This calibration model was then used to predict IDFC in moso bamboo shoots from the validation set. Predicted and reference IDFC values were compared. Relative percent deviation (RPD) and standard error of prediction (SEP) were calculated to validate the goodness of fit of the model. The Savitzky-Golay first derivative spectra calibration model gave an RPD of 3.710 with a corresponding SEP of 0.011, which indicated that MIR spectroscopy technique coupled with PLS was a rapid and accurate way for determination of IDFC in moso bamboo shoot.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
Document Type: Research Article
Publication date: 2012-01-01
More about this publication?
- The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
- Editorial Board
- Information for Authors
- Subscribe to this Title
- Terms & Conditions
- Ingenta Connect is not responsible for the content or availability of external websites