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__________ uses reflectance & absorbance principles for calculating the moisture content.

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in Food Processing Unit Operations by (110k points)
__________ uses reflectance & absorbance principles for calculating the moisture content.

(a) Karl Fischer method

(b) Nuclear moisture meter method

(c) Loss on drying moisture meter method

(d) Near infrared moisture meter method

The question was posed to me by my school principal while I was bunking the class.

The doubt is from Drying topic in division Drying of Food Processing Unit Operations

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The correct option is (d) Near infrared moisture meter method

To explain I would say: Near infrared moisture meter method uses absorbance and reflectance principles for determining the moisture content. This meter focuses a beam of light on the product and then the light is filtered to a wavelength that excites the moisture molecules. The higher the amount of moisture content, higher is the amount of light absorbed.

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