Background: There is negligible data available regarding nutritional evaluation of extra virgin olive oil (EVOO) obtained from olive cultivars from Pothwar region of Pakistan. Aim: The aim of this study was to profile nutritional parameters of EVOOs extracted from 10 olive cultivars of Pothwar. Study Type: This was an experimental quantitative research design. Methods: EVOO was extracted from Ten cultivars of olive namely Frantoio, Earlik, Manzanilla, Leccino, Ottobratica, Sevillano, Arbequina, Gamlik, Koroneiki, and Coratina, and their nutritional significance was determined using Near Infra-Red spectrophotometry (NIR). Results: The olive cultivars like Coratina, Frontoio, Koroneki, Sevillano, and Ottobratica were found with higher percentage of oil i.e., 23.9%, 23.7%, 22.8%, 22%, and 22% respectively. The lowest amount of oil was recorded in Gamlik cultivar of olive. The organoleptic traits of EVOO extracted were found in accordance with permissible range described for EVOO by International Olive Council (IOC) and Pakistan Standards and Quality Control Authority (PSQCA) i.e., light yellow tint, absence of any foreign matter, characteristic taste and fruity aroma. The chemical properties like peroxide value, acidity, free fatty acids, saponified value, unsaponified value, and iodine value were also observed in acceptable range according to international standards of IOC and PSQCA i.e., 1.5 to 5.2 meqO2/kg, 0.5 to 1.6 mg/g acid, 0.1 to 0.8, 186 to 192 mg/g, 4 to 8 g/kg; and 82 to 90, respectively. Fatty acid profile and percentage of oleic acid were found to be the highest followed by linoleic, palmitic, stearic, palmitoleic, and alpha-linolenic acid, i.e., 55 to 66.1%, 10.4 to 20.4%, 13.8 to 19.5%, 3.9 to 4.4%, 0.3 to 1.7%, and 0.9 to 1.7%, respectively. Other nutritional and functional parameters like alpha-tocopherols, chlorophyll, carotenoids, total phenolic content, total flavonoids, and total tannins were also studied and ranged from 104.7 to 535.3 mg/kg, 1.15 to 13.12 mg/kg, 1.25 to 5.91 mg/kg, 320 to 1500 mgGAE/kg, 70 to 280 mgQE/kg, and 560 to 6560 mgCE/kg, respectively. Conclusion: The results were found statistically significant confirming substantial nutritional and functional properties in EVOO extracted from olive cultivars grown in Pothwar, Pakistan suggesting it a good source of plant oil rich in nutraceutical compounds.
AbdallaIIHKhaddorMBoussabA, et al. (2014) The effect of storage time on the quality of olive oil produced by cooperatives for olive growers in the north of Morocco. Asian Journal of Agriculture and Food Science2(2): 129–138.
2.
AOAC (2006) Official methods of analysis (18th ed.). Gaithersburg, MD, USA: Association of Official Analytical Chemistry.
ChenHAngiuliMFerrariC, et al. (2011) Tocopherol speciation as first screening for the assessment of extra virgin olive oil quality by reversed-phase high- performance liquid chromatography/fluorescence detector. Food Chemistry125: 1423–1429.
5.
CodexA (2017) Norme pour les huiles d’olive vierges et huiles de grignons d’olive. Codex STAN8: 33–1981.
6.
CovasMI (2008) Bioactive effects of olive oil phenolic compounds in humans: Reduction of heart disease factors and oxidative damage. Inflammo-pharmacology16: 216–218.
7.
DouzaneMDaasMSMeribaiA, et al. (2021) Physico-chemical and sensory evaluation of virgin olive oils from several Algerian olive-growing regions. Oilseed and Fats, Crops and Lipids28: 1–11.
8.
FraihatSGilbert-LópezBMolina-DíazA, et al. (2017) Physicochemical characterization of olive oil from Aljouf area of Saudi Arabia. International Journal of Chemtech Research10: 1004–1010.
9.
GiuffreAM (2018) The evolution of free acidity and oxidation related parameters in olive oil during olive ripening from cultivars grown in the region of Calabria, South Italy. Emirates Journal of Food and Agriculture30(7): 539–548.
10.
GiuffridaDSalvoFSalvoA, et al. (2011) Pigments profile in monovarietal virgin olive oils from various Italian olive varieties. Food Chemistry124(3): 1119–1123.
11.
GuQYiXZhangZ, et al. (2016) A facile method for simultaneous analysis of phytosterols, erythrodiol, uvaol, tocopherols and lutein in olive oils by LC-MS. Analytical Methods8: 1373–1380.
12.
GulfrazMKasuarRArshadG, et al. (2009) Isolation and characterization of edible oil from wild olive. African Journal of Biotechnology8: 3734–3738.
13.
HafizARSColinJBFrankRD (2020) Screening and characterization of phenolic compounds and their antioxidant capacity in different fruit peels. Foods9: 1206–1232.
14.
HijawiT (2021) Characterizing of oil quality and fatty acid profiles of old olive trees in Palestine. Journal of Oleo Science70: 1585–1606.
15.
International Olive Oil Council (2011) International Olive Oil Council Activities: World Olive Oil Figures: World Olive Oil Consumption. www.internationaloliveoil.org.
16.
JuanMPlanasJRuiz-GutierrezV, et al. (2008) Antiproliferative and apoptosis-inducing effects of maslinic and oleanolic acids, two pentacyclic triterpenes from olives, on HT-29 colon cancer cells. British Journal of Nutrition100: 36–43.
17.
KnoopsKTDe-GrootLCKromhoutD (2004) Mediteranean diet, lifestyle factors, and 10-year mortality in elderly European men and women. Journal of American Medicine Association292: 1433–1439.
18.
KorkmazA (2023) Characterization and comparison of extra virgin olive oils of Turkish olive cultivars. Molecules28: 1483–1498.
19.
KritiotiAMenexesGDrouzaC (2018) Chemometric characterization of virgin olive oils of the two major Cypriot cultivars based on their fatty acid composition. Food Research International103: 426–437.
20.
KuhnMNakibSJBdB, et al. (2008) Simultaneous determination of retinol and α-tocopherol in polymeric diets for enteral nutrition. Journal of Chromatography A1205: 186–190.
21.
MeleMAIslamMZKangHM, et al. (2018) Pre- and post-harvest factors and their impact on oil composition and quality of olive fruit. Emirates Journal of Food and Agriculture30(7): 592–603.
22.
MetcalfeLDSchmitzAAPelkaJR (1966) Rapid preparation of fatty acid esters from lipids for gas chromatographic analysis. Analytical Chemistry38(3): 514–515.
23.
MilinovicJGarciaRRatoAE, et al. (2019) Rapid assessment of monovarietal Portuguese extra virgin olive oil’s (EVOO’s) fatty acids by Fourier-transform near-infrared spectroscopy (FT-NIRS). European Journal of Lipid Science and Technology1800392: 1–9.
24.
Minguez-MosqueraMIRejanoLGandulB, et al. (1991) Color-Pigment correlation in virgin olive oil. Journal of American Oil and Chemists’ Society68: 332–336.
25.
MoralJAgustí-BrisachCAgalliuG, et al. (2018) Preliminary selection and evaluation of fungicides and natural compounds to control olive anthracnose caused by Colletotrichum species. Crop Protection114: 167–176.
26.
ObiedHKAllenMSBedgoodDR, et al. (2005) Bioactivity and analysis of biophenols recovered from olive mill waste. Journal of Agricultural Food Chemistry53(4): 823–837.
27.
OzcanMMAl-JuhaimiFUsluN, et al. (2019) The effect of olive varieties on fatty acid composition and tocopherol contents of cold pressed virgin olive oils. Journal of Oleo Science68(4): 307–310.
28.
ParthasarathyUNandakishoreOPSenthil KumarR, et al. (2014) A comparison of the physico-chemical parameters of seed butters of selected Indian garcinia spp. Journal of Global Bioscience3(6): 872–880.
29.
RagiabAMIAl HanashHBThurayaEK, et al. (2017) An investigation on Libyan olive oil in the western region. Moroccan Journal of Chemistry5(4): 652–658.
30.
SaudeCBarrosTMateusT, et al. (2017) Effect of chloride salts on the sensory and nutritional properties of cracked table olives of the maçanilha algarvia cultivar. Food Bioscience19: 73–79.
31.
SicariV (2017) Antioxidant potential of extra virgin olive oils extracted from three different varieties cultivated in the Italian province of reggio calabria. Journal of Applied Botany and Food Quality90: 76–82.
32.
SteelRTorrieJDickeyD (1997) Principles and procedure of statistics; A biological approach. New York, USA: McGraw Hill Book Inc.
33.
UllahAAwanAAZiaA, et al. (2018) Comparative study of quality parameters of extra virgin olive oil from different regions of Khyber Pakhtunkhwa, Pakistan. Pure Applied Biology7(1): 263–270.
34.
ViolaPViolaM (2009) Virgin olive oil as a fundamental nutritional component and skin protector. Clinical Dermatology27: 159–165.
35.
VossenPDevarenneAK (2006) Olive oil yield: Factors affecting production. First Press, University of California Cooperative Extension2(1): 1–4.
36.
ZhangLWangSYangR, et al. (2019) Simultaneous determination of tocopherols, carotenoids and phytosterols in edible vegetable oil by ultrasound-assisted saponification, LLE and LC-MS/MS. Food Chemistry289: 313–319.
