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Some physico-chemical attributes of pear (Pyrus communis L.) cultivars grown in Pakistan

Research Paper | December 1, 2013

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Shehzad Hussain, Tariq Masud, Sartaj Ali, Rahat Bano, Amjad Ali

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Int. J. Biosci.3( 12), 206-215, December 2013

DOI: http://dx.doi.org/10.12692/ijb/3.12.206-215


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Four pear (Pyrus communis L.) cultivars grown in District Hunza-Nagar, Gilgit-Baltistan, locally called Shughri, Batung, Puno-Batung and Phycho were analyzed for their physio-chemical and functional attributes. Physico-chemical characteristics of the tested genotypes revealed variable amounts of moisture (80.17-86.67%), crude fiber (5.10-10.00%), ash (1.56-1.83%), total soluble solids (11.03-14.42oBrix), total sugars (10.19-11.12%), pH (4.12-5.24) and titratable acidity (0.12-0.26% in terms of malic acid) respectively. Similarly, ascorbic acid was established in the range of 2.80-4.30 mg/100g, total phenolic content 29.13-38.87 mg GAE/100g and antioxidant activity from 29.36-46.73% among the investigated genotypes. Some mineral estimation (mg/100g) was also carried out which showed reasonable concentrations of K (163.27-833.85), Mg (38.57-86.74), Ca (23.26-48.39), P (5.20-13.70), Na (0.95-4.19) and Fe (0.40-2.86) in the tested cultivars. Physical and geometric dimensions such as fruit length ranged from 40.10 to 87.50 mm, width 36.22 to 68.85 mm, thickness 37.36 to 73.80 mm, geometric mean diameter 37.71 to 74.69 mm, volume 22.33 to 227.4 cm3, surface area 4468 to 17527 mm2, sphericity 84.20 to 89.90 % and fruit weight ranged from 35.11 to 231.96 g. The findings of this study showed that Shughri and Phycho grown in both locations were rich in functional components and mineral contents, while, Batung and Puno-Batung were prominent in physical and geometric traits.


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Some physico-chemical attributes of pear (Pyrus communis L.) cultivars grown in Pakistan

Agri, Stat. 2007. Northern Areas Agricultural Statistics Survey Report, Fruit Production in Northern Areas. Department of Agriculture Northern Areas Pakistan. 7-22 p.

Ahmadi H, Fathollahzadeh H, Mobli H. 2008. Some Physical and Mechanical Properties of Apricot Fruits, Pits and Kernels (C.V Tabarzeh). American-Eurasian Journal of Agricultural and Environmental Sciences 3(5), 703-707.

Ali S, Masud T, Abbasi KS. 2011. Physico-chemical characteristics of apricot (Prunus armeniaca L.) grown in Northern Areas of Pakistan. Scientia Horticulturae 130, 386-392. http://dx.doi.org/10.1016/j.scienta.2011.05.040

Alonso GM, Teresa SP, Buelga CS, Gozalo JCR. 2004. Evaluation of the antioxidant properties of fruits. Food Chemistry 84, 13-18.

Amin M, Malik AU, Mazhar MS, Din IU, Khalid MS, Ahmad S. 2009. Mango fruit desapping in relation to time of harvesting. Pakistan Journal of Botany 40, 1587-1593.

Andreotti C, Costa G, Treutter D. 2006. Composition of phenolic compounds in pear leaves as affected by genetics, on to genesis and the environment. Scientia Horticulturae 109(2),  130-137. http://dx.doi.org/10.1016/j.scienta.2006.03.014

Anon. 2008. Food and Agricultural Organisation.www.fao.org. Accessed on January 18th. 2011.

AOAC. 2000. Official Methods of Analysis, 17th  Ed Association of Official Analytical Chemists, Arlington, USA.

Arzani K, Khoshghalb H, Malakouti MJ, Barzegar M. 2011. Total Oxalate Soluble Pectin Concentration in Asian Pear (Pyrus serotina Rehd) Fruit in Relation to Ripening, Storage and Internal Browning Disorder. Journal of Agricultural Science and Technology 13, 611-626.

Barroca MJ, Guine RPF, Pinto A, Goncalves FM, Ferreira DMS. 2006. Chemical and Microbiological characterization of Portuguese varieties of pears. Food Bioproduct Processing 84(2), 109-113.

Baryeh EA. 2001. Physical properties of Bambara groundnuts.  Journal  of  Food  Engineering 47(4), 321-326. http://dx.doi.org/10.1016/S0260-8774(00)00136-9

Brand-Williams  W,  Cuvelier  ME,  Berset  C. 1995. Use of free radical method to evaluate antioxidant activity. Lebensmittel Wissenschaft und Technologie 28, 25-30.

Brown GS, Walker TD. 1990. Indicators of maturity in apricots using biplot multivariate analysis. Journal of the Science of Food and Agriculture 53, 321-331. http://dx.doi.org/10.1002/jsfa.2740530305

Campanella L, Bonanni A, Favero G, Tomassetti M. 2003. Determination of antioxidant properties of aromatic herbs, olives and fresh fruit using an enzymatic sensor. Analytical and Bioanalytical Chemistry 375, 1011-1016. http://dx.doi.org/10.1007/s00216-003-1825-1

Chen J, Wang Z, Wub J, Wang Q, Hub X. 2007. Chemical compositional characterization of eight pear cultivars grown in China. Food Chemistry 104, 268-275.

Demir F, Kalyoncu IH. 2003. Some nutritional, pomological and physical properties of cornelian cherry (Cornus mas L.). Journal of Food Engineering 60, 335-341.

Drogoudi PD, Michailidis Z, Pantelidis G. 2008. Peel and flesh antioxidant content and harvest quality characteristics of seven apple cultivars. Scientia Horticulturae 115, 149-153.

Edizer Y, Gunes M. 1997. Some pomological properties of local apple and pear cultivars grown in Tokat region of Turkey. Proceedings of Pome Fruit Symposium, 259-266 p.

Faisal F, Ahmed MK. 2007. Effect of concentrations and date of spraying Sitofex (CPUU) on yield and quality of Le-Conte pear fruits. African Crop Science Conference Proceedings. 8, 523-527.

FAO. 2008. FAOSTAT, database. Rome. Accessed from, http://faostat.fao.org. Accessed on 14th July 2010.

Feskanich D, Ziegler RG, Michaud DS, Giovannucci EL, Speizer FE, Willett WC. 2000. Prospective study of fruit and vegetable consumption and risk of lung cancer among men and women. Journal of National Cancer Institute 92, 1812-1823. http://dx.doi.org/10.1093/jnci/92.22.1812

Fischer M, Weber HJ. 2005. Birnenanbau–integriert und biologisch. Ulmer, Stuttgart (Hohenheim). Abstract translated into English.

Franck C, Baetens M, Lammertyn J, Verboven P, Davey M, Nicolai BM. 2003. Ascorbic acid concentration in cv. Conference pears during fruit development and postharvest storage. Journal of Agriculture and Food Chemistry 51, 4757-4763. http://dx.doi.org/10.1021/jf026229a

Guleryuz M, Ercisli S. 1997. Some pomological properties of local pear cultivars grown in Kagizman district of Turkey. Proceedings of Pome Fruit Symposium, 37-44 p.

Honda T, Kai I, Ohio G. 1999. Fat and dietary fiber intake and colon cancer mortality: a chronological comparison between Japan and United States. Nutrition and Cancer 33, 95-99. http://dx.doi.org/10.1080/01635589909514754

Janick J. 2006. ‘H2-169’ (Ambrosia™) Pear. Horticulture Sciences 41, 467.

Karadeniz F, Burdurlu HS, Koca N, Soyer Y. 2005. Antioxidant activity of selected fruits and vegetables grown in Turkey. Truck Journal of Agriculture and Forestory 29, 297-303.

Larrigaudiere C, Lentheric I, Pinto E, Vendrell M. 2001. Short-term effects of air and controlled atmosphere storage on antioxidant metabolism in “Conference” pears. Jounal of Plant Physiology 158, 1015-1022.

Larrigaudiere C, Pinto E, Lentheric I. 2003. Oxidative behaviour of “Conference” pears stored in air and controlled atmosphere storage. Acta Horticulture 6, 355-357.

Mahammad MU, Kamba AS, Abubakar L, Bagna EA. 2010. Nutritional composition of pear fruits ( pyrus communis). African Journal of Food Science and Technology 1(3), 76-81.

McKee LH, Latner TA. 2000. Underutilized sources of dietary fiber: A review. Plant Foods for Human Nutrition 55, 285-304. http://dx.doi.org/10.1023/A:1008144310986

Mohsenin NN. 1970. Physical properties of plant and animal material. New York. Gordon and Breach.

Morais AMB, Avelar ML, Rodrigues AC. 2001. Influence of delayed CA storage on ascorbic acid content and brown-heart incidence in “Rocha” pear. Acta Horticulture 552, 647-650.

Nwosuagwu UH, Ngozika CO, Chiaka N. 2009. The chemical properties of African pear pulp at different stages of fruit development. International NGO Journal 4(9), 380-385.

Omobuwajo TO, Sanni LA, Olajide LO. 2000. Physical properties of ackee apple (Blighia sapida) seeds. Journal of Food Engineering 45, 43-48. http://dx.doi.org/10.1016/s0260-8774(00)00040-6

Ozturk I, Ercisli S, Kalkan F, Demir B. 2009. Some chemical and physico- mechanical properties of pear cultivars. African Journal of Biotechnology 8(4), 687-693.

Petkou D, Diamantidis G, Vasilakakis M. 2002. Arbutin oxidation by pear (Pyrus communis L.) peroxidases. Plant Sciences 162, 115-119.

Rodriguez-Guisado I, Hernandez F, Melgarejo P, Legua P, Martinez R, Martinez J. 2009. Chemical morphological and organoleptical characterization of five Spanish quince tree clones (Cydonia oblonga Miller). Scientia Horticulturae 122, 491-496. http://dx.doi.org/10.1016/j.scienta.2009.06.004

Salta J, Martins A, Santos RG, Neng NR, Nogueira JMF, Justino J, Rauter AP. 2010. Phenolic composition and antioxidant activity of Rocha pear and other pear cultivars – A comparative study. Journal of Functional Foods 2, 153-157.

Sanchez GAC, Angel GI, Maria IG. 2003. Comparative study of six pear cultivars in terms of their phenolic and vitamin C contents and antioxidant capacity. Journal of the Science of Food and Agriculture 83, 995-1003. http://dx.doi.org/10.1002/jsfa.1436

Schieber A, Keller P, Carle R. 2001. Determination of phenolic acids and flavonoids of apple and pear by high-performance liquid chromatography. Journal of Chromatogrphy 910, 265-273.

Senser F, Scherz H, Munchen G. 1999. Tablasde Composicion de Alimentos. 2nd edition (Editorial Acribia, Zaragoza).

Silos EH, Morales FL, Castro JA, Valverde E, Lara F, Lopez O. 2003. Chemical and biochemical changes in prickly pears with different ripening behaviours. Nahrung 47, 334-338.

Sponas GA, Wrolstad RE. 1990. Influence of processing and storage on the phenolic composition of Thompson seedless grape juice. Journal of Agriculture and Food Chemistry 38, 1565-1571.

Steel RD, Torrie JH, Dickeyl D. 1997. Principals and procedures of Statistics: A Biometrical Approach (3rd ed) McGraw Hill Book Co. New York.

USDA. 2011. Economic National Nutrition Database for Standard References. Available at: http:// www.nal.usda.gov. Accessed on 25th August 2011.

Xie D, Zhang H, Mo J, Li Z, Lui T, Yi C. 2007. Nutritional and Medicinal Quality of Pear Juice. Next Hotspot Food 1(1), 41-48.