Global Journal of Food Science and Technology

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Comparative Analyses of Olive Mill Solid Residues in Northwestern and Southwestern Region of Libya


Alshareef MA, Akasha MM, Akasha AA, and Saleh WA,



 

Abstract This study carried out to estimate the crude protein,  total lipid, crude ash and moisture content of olive pomace. The olive pomace samples were collected from Gharyan and Samno during the harvesting season 2020. Crude protein  was determined by standard Kjeldahl method and the total lipid was estimated by Soxhlet extraction method. The results show that Gharyan olive pomace had the highest amount of protein (P≤ 0.05) compared to that collected from Samno with statistically significant difference suggesting that the composition of matrices and their percentage may be responsible for composition of amendments. The calculated total protein percentage was (3.81 ± 0.08 %) for Gharyan and (2.51% ± 0.03) for Samno olive pomace. Gharyan olive pomace shows the highest amount of total lipid (P≤ 0.05) compared to that collected from Samno. The percentage of total lipid of the olive pomace samples were 12.7% ± 0.31 and 11.4 ± 0.22 % for Gharyan and  Samno respectively. The percentage of crude ash content of the olive pomace samples were 12.9% ± 0.21 and 12.8 ± 0.23 % for Gharyan and  Samno respectively but the differences in the values in study samples were not substantial. The percentage of moisture content of the olive pomace samples were 41.28% ± 2.11 and 34.05 ± 1.21 % for Gharyan and  Samno respectively. In conclusion, olive pomace by-product could give a sustainable and alternative-cheap source for fertilizers, food industries, pharmaceutical industries, cosmetics and other industries                                                                                                                                                             .

Keywords: olive pomace oil; total protein content; olive pomace; Gharyan; Samno

 

Abstract This study carried out to estimate the crude protein,  total lipid, crude ash and moisture content of olive pomace. The olive pomace samples were collected from Gharyan and Samno during the harvesting season 2020. Crude protein  was determined by standard Kjeldahl method and the total lipid was estimated by Soxhlet extraction method. The results show that Gharyan olive pomace had the highest amount of protein (P≤ 0.05) compared to that collected from Samno with statistically significant difference suggesting that the composition of matrices and their percentage may be responsible for composition of amendments. The calculated total protein percentage was (3.81 ± 0.08 %) for Gharyan and (2.51% ± 0.03) for Samno olive pomace. Gharyan olive pomace shows the highest amount of total lipid (P≤ 0.05) compared to that collected from Samno. The percentage of total lipid of the olive pomace samples were 12.7% ± 0.31 and 11.4 ± 0.22 % for Gharyan and  Samno respectively. The percentage of crude ash content of the olive pomace samples were 12.9% ± 0.21 and 12.8 ± 0.23 % for Gharyan and  Samno respectively but the differences in the values in study samples were not substantial. The percentage of moisture content of the olive pomace samples were 41.28% ± 2.11 and 34.05 ± 1.21 % for Gharyan and  Samno respectively. In conclusion, olive pomace by-product could give a sustainable and alternative-cheap source for fertilizers, food industries, pharmaceutical industries, cosmetics and other industries                                                                                                                                                             .

Keywords: olive pomace oil; total protein content; olive pomace; Gharyan; Samno