Department of Food Science and Technology, University of Agriculture, Peshawar, Pakistan
Department of Food Science and Technology, University of Agriculture, Peshawar, Pakistan; Effect of Different Chemical Preservatives on Preservation of Pear Nectar Effect of Different Chemical Preservatives on Preservation of Pear Nectar
Research Article
Effect of Different Chemical Preservatives on Preservation of Pear Nectar
Author(s): Qamar Liaqat, Said Wahab, Muhammad Ayub, Adnan Waheed, Irfan Ullah*, Naeem Ullah and Murtaza Ali
Benzoate and Potassium sorbate separately and in combination with different concentration is used for the
preservation of pear nectar. The samples were packed in 250 ml transparent plastic bottles at room temperature for
a storage period of 90 days. The treatments were P0 (pear nectar with no preservative), P1 (pear nectar+0.1% Sodium
benzoate), P2 (pear nectar+0.1% potassium sorbate), P3 (pear nectar+0.05% Sodium benzoate), P4 (pear nectar+
0.05% Potassium benzoate) and P5 (pear nectar+0.05% Sodium benzoate and 0.05% Potassium sorbate). Samples
of pear nectar were evaluated for total soluble solids, ascorbic acid, %acidity, pH, reducing and non-reducing sugar
and sensory evaluation (color, flavor, taste and overall acceptability). pH decrease from 4.03 to 3.60, total soluble
solids increase (14.90 .. View more»