以可見光／近紅外線光譜鑑別國產冷藏與進口冷凍再解凍雞腿

Discrimination of the Domestic Chilled Storage and the Imported Frozen-Thawed Chicken Thighs Using Visible/Near-Infrared Spectroscopy

周震煌(Chen-Huang Chou) ； 周瑞仁(Jui-Jen Chou) ； 蕭介宗(Jai-Tsung Shaw)

《農業機械學刊》 16卷2期 (2007/06) Pp. 1-11

https://doi.org/10.30062/JAM.200706.0001

摘要

From 400 to 2200 nm with 2 nm interval, an extension fiber optic probe of FOSS NIRSystem 6500 was used to measure the absorbance of chicken thighs at 5 cm from the end of Tibia bone. Partial least square regression of Unscrambler software with dummy regression was applied to establish 9 calibration models under different wavelength ranges and criteria with different variables. Using the establishedmodels, the average discrimination rate varies from 76.7% to 93.3%. Using 17 variables (absorbance corresponding to the wavelength) selected by the ＜||＞stepwisefit＜||＞ function of Matlab 7.0, discrimination rates are 100% for the imported frozen-thawed chicken thighs and 86.7% for the domestic chilled storage chicken thighs. The best average overall discrimination rate is 93.3%.

關鍵字

近紅外線光譜 ； 雞腿 ； 鑑別率 ； 冷凍再解凍

並列摘要

From 400 to 2200 nm with 2 nm interval, an extension fiber optic probe of FOSS NIRSystem 6500 was used to measure the absorbance of chicken thighs at 5 cm from the end of Tibia bone. Partial least square regression of Unscrambler software with dummy regression was applied to establish 9 calibration models under different wavelength ranges and criteria with different variables. Using the establishedmodels, the average discrimination rate varies from 76.7% to 93.3%. Using 17 variables (absorbance corresponding to the wavelength) selected by the ＜||＞stepwisefit＜||＞ function of Matlab 7.0, discrimination rates are 100% for the imported frozen-thawed chicken thighs and 86.7% for the domestic chilled storage chicken thighs. The best average overall discrimination rate is 93.3%.

並列關鍵字

Near infrared spectroscopy ； Chicken thigh ； Discrimination rate ； Frozenthawed