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Determination of moisture content of ginseng by near infra-red reflectance spectroscopy


Determination of moisture content of ginseng by near infra-red reflectance spectroscopy



Food Chemistry 60(3): 433-436



ISSN/ISBN: 0308-8146

DOI: 10.1016/s0308-8146(96)00363-9

Near infra-red reflectance (NIR) spectroscopy was used to measure the moisture content in the hot-air dried Asian ginseng (Panax ginseng) roots, freeze-dried Asian ginseng roots, red Asian ginseng roots and hot-air dried American ginseng (Panax quinquefolium) roots. The convection drying method was used as the reference method. The calibration equation was obtained using the wavelength segment 1100-2500 nm with first derivative and scatter correction. A high correlation was obtained between the two analytical methods (R-2=0.998), with a standard error of prediction (SEP) of 0.14% for the NIR method. The bias between the two methods was insignificant, being only 0.12%.

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Accession: 008446722

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