Quality control of pine needles extracts (PNE) by using electroanalytical methods
Journal: International Journal of Environment, Agriculture and Biotechnology (Vol.7, No. 5)Publication Date: 2022-09-19
Authors : Jasmin Sefer Husejin Keran Melisa Ahmetović Indira Šestan Halid Junuzović Amir Zenunović Asmira Čanić;
Page : 070-074
Keywords : electrical conductivity; extracts; PNE; pH; quality control;
Abstract
PH represents the concentration of free H+ in pine needles extracts (PNE) and is therefore an important initial parameter in quality control. Electrical conductivity and pH of samples of fresh and stored for 20 days of PNE with black cumin oil and olive oil had values of 0.00 due to the encapsulation of water molecules, pH and electrical conduction was not possible. The pH of the other samples was in a weakly acidic environment because the pH of natural pine needles is 3.8. Electrical conductivity values in all samples except pine needle extract and honey increased during storage. By monitoring the parameters of pH and electrical conductivity in the quality control of PNE, it gives us a significant insight into the physical state of the phases and the way of storage.
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