Nondestructive determination of water and protein in surimi by near-infrared spectroscopy |
| |
Authors: | Musleh Uddin Emiko Okazaki Hideto Fukushima Sandor Turza Yamashita Yumiko Yutaka Fukuda |
| |
Affiliation: | 1. Division of Food Technology and Biochemistry, National Research Institute of Fisheries Science, 2-12-4 Fukuura, Kanazawa, Yokohama 236-8648, Japan;2. Central Food Research Institute, Department of Analytics, H-1002 Budapest, Hungary |
| |
Abstract: | Nondestructive near-infrared spectroscopy (NIRS) between 400 and 1100 nm regions was employed directly on surimi using a surface interactance fibre optic accessory, to investigate the potential of NIRS as a fast method to determine water and protein contents. The reason why NIRS is well suited when assessing the presence of water or protein is due to the specificity of O–H and N–H bindings. At 980 nm only one broad peak in the original spectra can be seen due to the absorption of water since it contained nearly 80% of surimi. Predictive equations were developed using partial least squares (PLS) regression where excellent predictions for protein and water are noticed. Regression coefficients are higher than 0.98, errors are small and RPD value for protein is well over 8 and that for water is very close to it which can be used for any analytical purpose. |
| |
Keywords: | Surimi Protein Water NIRS PLS |
本文献已被 ScienceDirect 等数据库收录! |
|