Determination of protein and moisture in wheat and barley by near-infrared transmission

1985 ◽  
Vol 33 (2) ◽  
pp. 239-244 ◽  
Author(s):  
Philip C. Williams ◽  
Karl H. Norris ◽  
Debbie C. Sobering
Keyword(s):  
Near Infrared ◽  
Infrared Transmission

Determination of Moisture by Mid Infrared Transmission Spectroscopy

1988 ◽  
Vol 71 (5) ◽  
pp. 1024-1027 ◽  
Author(s):  
Frederick R Van De Voort ◽  
Marilou Laureano ◽  
James P Smith
Keyword(s):  
Near Infrared ◽  
Milk Powder ◽  
Skim Milk ◽  
Skim Milk Powder ◽  
Infrared Transmission ◽  
Mid Infrared ◽  
Standard Curve ◽  
Moisture Extraction ◽  
Infrared Method

Abstract An investigation was undertaken to determine whether commercially available mid infrared filter instrumentation (i.e., Multispec MK1) could be used to determine moisture in a manner similar to the AOAC near infrared method. Using a specially designed IR scanning spectrophotometer capable of working with aqueous systems, functional sample (6.02 jtm) and reference (5.56 iim) wavelengths were determined for quantitating water-methanol mixtures, and a standard curve was derived. Skim milk powder, bread crumbs, and flour were mixed with dry methanol to extract moisture into the solvent; moisture was quantitated relative to 3 AOAC methods. The results indicated that the wavelength pair selected worked well and had the potential to determine moisture content of low moisture food products, given that appropriate moisture extraction protocols were derived. This work indicates that the capabilities of commercial filter-based mid infrared instruments could be expanded to include moisture analyses if such instruments were equipped with the appropriate interference filters to carry out this determination.

Determination of chemical oxygen demand in water using near-infrared transmission and UV absorbance method

2011 ◽  
Vol 9 (s1) ◽  
pp. s10705-310709 ◽  
Author(s):  
Guoqing Wu Guoqing Wu ◽  
Weihong Bi Weihong Bi ◽  
Jiaming Lv Jiaming Lv ◽  
Guangwei Fu Guangwei Fu
Keyword(s):  
Chemical Oxygen Demand ◽  
Near Infrared ◽  
Oxygen Demand ◽  
Uv Absorbance ◽  
Infrared Transmission

Near-Infrared Transmission and Reflectance Spectroscopy for the Determination of Dietary Fiber in Barley Cultivars

Crop Science ◽  
2005 ◽  
Vol 45 (6) ◽  
pp. 2307-2311 ◽  
Author(s):  
Sandra E. Kays ◽  
Naoto Shimizu ◽  
Franklin E. Barton ◽  
Ken'ichi Ohtsubo
Keyword(s):  
Dietary Fiber ◽  
Near Infrared ◽  
Reflectance Spectroscopy ◽  
Infrared Transmission ◽  
Barley Cultivars
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