Use of Photopyroelectric Film in Performing Quality Analysis for Food Matrix

Rushdi Kitaneh
Ibrahim Afaneh
Hisham Hidmi
Abrar Al Za tari
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The Photopyroelectric film known as Polyvinylidenedifluoride film (PVDF) was used to invent a new technique for detecting food elements qualitatively and quantitatively. Several Food items, namely carbohydrates, proteins, fat, vitamins, and minerals, were involved. Several concentrations of the investigated materials were prepared in form of 0.1, 0.5, 1, 3, 5, 7, and 10%. The PVDF was found to be very effective in determining the concentrations and detecting the presence of several food elements, as in the case of NaCl, CaCl2, Sucrose, and Tryptophan. The detection was in terms of full beam, while each item was measured at all investigated concentrations at specific wavelength. The results obtained showed very remarkable correlation between the measured food elements; NaCl, CaCl2, Sucrose, and Tryptophan and the wavelengths; 720, 850, 1000, and 760nm, respectively. The real food samples consisted of eggs in the form of whole egg, egg yolk, and egg white and milk in the form of raw, pasteurized, and sterilized milk, and they were stored at different storage temperatures.