Abstract：The possibility of determination of tofu hardness by near infrared spectroscopy (NIR, 833-2500 nm) was studied. The influences of water content and protein content on the spectra were discussed, in order to detect the hardness. The models of Tofu hardness were calibrated by partial least squares regression (PLS) after eliminating outline, spectra pretreatment, and wavelength optimization (r=0.994, RMSEC=0.391%, RMSEP=0.416%, RSD=2.27%). All of the results were better than those by sense assessing method.
韩东海,鲁超,温朝晖,耿朝曦. 基于近红外光谱的腐乳白坯硬度检测研究[J]. 光谱学与光谱分析, 2006, 26(07): 1234-1237.
HAN Dong-hai, LU Chao, WEN Zhao-hui，GENG Zhao-xi . Detection of Tofu Hardness by Near Infrared Spectroscopy. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(07): 1234-1237.
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