Abstrakt
Pears, besides apples, are also popular fruit species at the Polish fruit market. It is connected not only with their delicious taste but, among others, year-round availability at the market. The research objective was to determine and compare the basic chemical composition, i.e. dry matter, N-compounds (total), mineral elements (total), dietary fiber and easily hydrolyzed sugars (NFE), vitamin C as well as mineral content of: Mg, K, Na, Ca, Mn and Fe in the flesh and the peel of pears of the following cultivars: ‘Bonkreta Willimsa’, ‘Concorde’, ‘General Leclerc’, ‘Faworytka’, ‘Komisówka’, ‘Konferencja’ and ‘Lukasówka’ harvested in 2009 and 2010. In all the analyzed pear cultivars, nutrient concentration appeared to be higher in the fruit peel compared to the flesh. The pears from the ‘Concorde’cv (average 23% f.m. –dry matter, 0.5% f.m. – N-compounds, 19.1% f.m. – NFE) and ‘Lukasówka’ cv. (average 23.1% f.m. – dry matter., 0.5% f.m. – N-compounds, 19.2% f.m. – NEF). The highest fiber content was determinated in friuts ‘Faworytka’ (average peel – 7.2% f.m., flesh – 0.7% f.m..).Whereas the highest concentration
of vitamin C was observed in the peel and flesh of ‘Concorde’ (8.0–7.8 mg 100-1 f.m.), ‘Faworytka’ (7.6–7.4 mg 100-1 f.m.) and ‘Lukasówka’ (8.4–8.0 mg 100-1 f.m.). While considering a mineral compound concentration, the richest were ‘Concorde’ cultivar pears (peel – 0.4% f.m.; flesh – 0. % f.m.). Out of the studied pear cultivars the lowest concentration of these elements was established in the ‘Conference’ and ‘Komisówka’ cultivars. There was determined the highest content of K in fruits of ‘Bonkreta Williamsa’, ‘Concorde’, ‘Komisówka and ‘Konferencja, Na – ‘Faworytka’ and ‘Lukasówka, Ca – ‘Concord’ and ‘Konferencja’, Mg – ‘Komisówka’, Mn – ‘Bonkreta Williamsa’ and ‘Concorde’ and Fe – ‘Concorde’. In most investigated pears, there was noted a higher concentrations of nutrients in fruit produced in 2009 year compared to 2010.
Bibliografia
Adamczyk G., 2002. Wybrane aspekty zachowań konsumpcyjnych i wzorców spożycia żywności w polskich gospodarstwach domowych w latach dziewięćdziesiątych. Rocz. AR. Poznań, 243, 31–41.
AOAC International., 2000. Official methods of analysis of AOAC International. 17th edition. Gaithersburg, MD, USA, Association of Analytical Communities.
Arogyaswamy B., Koziol W., 2005. Technology strategy and sustained growth: Poland in the European Union. Technol. Soc., 27, 4, 453–470.
Babicz-Zielinska E., 1999. Food preferences among the Polish young adults. Food Qual. Prefer., 10, 2, 139–145
Barroca M.J., Guiné R.P.F, Pinto A., Gonçalves F.M., Ferreira D.M.S., 2006. Chemical and microbiological characterization of portuguese varieties of pears. Food Bioprod. Process., 8, (2), 109–113.
Bermejo-Barrera UP., Moreda-Piñeiro A., Muñiz-Naveiro O., Gómez-Fernández A.M.J., Bermejo-Barrera A., 2000. Optimization of a microwave-pseudo-digestion procedure by experimental designs for the determination of trace elements in seafood products by atomic absorption spectrometry. Spectrochim. Acta, B, (55), 1351–1371.
Buwaldaa J.G., Meekingsa J.S., 1990. Seasonal accumulation of mineral nutrients in leaves and fruit of Japanese pear (Pyrus serotina Rehd.) Sci. Hortic., 41(3), 209–222.
Chakraborty R., Das A.K., Cervera M.L., de la Guardia M., 1996. Literature study of microwaveassisted digestion using electrothermal atomic absorption spectrome-try. J. Anal. Chem. 355, 99–111.
Cheng L., Dong S., Guak S., Fuchigami L.H., 2001. Effects of nitrogen fertigation on reserve nitrogen and carbohydrate status and regrowth performance of pear nursery plants. Acta Hort., 564, 51–62.
Chen, J., Wang, Z., Wu, J., Wang, Q., Hu, X., 2007. Chemical compositional characterization of eight pear cultivars grown in China. Food Chem., 104, 268–275.
Chervin Ch., Speirs J., Loveys B., Patterson B.D., 2000. Influence of low oxygen storage on aroma compounds of whole pears and crushed pear flesh. Postharvest Biol. Technol., 19, 3, 279–285.
Connors P.L., Greenleaf C.A,. Martin S.B, Petrie T.A., Beck N., 2010. Cardiovascular fitness of Texas middle school students and consumption of fruit, vegetable, dairy and cereal. J. Am. Diet. Assoc., 110 (9) Suppl. 1, A107–A119.
Czerwiecki L., Wilczyńska G., 1999. Oznaczanie witaminy C w wybranych produktach owocowo-warzywnych. Roczn. PZH, 50 (1), 77–87.
DeVries J.W., Faubion J.M., 1999. Defining dietary fiber: a report on the AACC/ILSI NA consensus workshop. Cereal Foods World, 44, 506–507.
Dz.U. nr 271, poz. 2688 Rozporządzenie Ministra Rolnictwa i Rozwoju Wsi z dnia 2 grudnia 2004 r.
Fallahi E., Larsen F.E., 1984. Rootstock influence on leaf and fruit mineral status of ‘Bartlett’ and ‘d'Anjou’ pear. Sci. Hortic., 23 (1), 41–49.
Fulker M.J., 2001. The role of fruit in the diet. J. Environ. Radioactiv., 52 (2–3), 147–157.
Franck, M. Baetens, J. Lammertyn, P. Verboven A., Nicolaï B.M., 2003. Ascorbic acid content during fruit development and postharvest storage of Conference pears. J. Agric. Food Chem. 51, 4757–4763
Guiné R.P.F., Castro, J.A.A.M., 2002. Pear drying process analysis: drying rates and evaluation of water and sugar concentrations in space and time. Dry. Technol., 20, 1515–1522.
Guiné R.P.F., Castro, J.A.A.M., 2003. Analysis of moisture content and density of pears during drying, Dry. Technol., 21, 581–591.
Guiné R.P.F., 2006. Influence of drying method on density and porosity of pears. Food Bioprod. Process., 84 (3), 179–185.
Houdina M., Štampar A., 1999. Influence of foliar fertilization on quality of pear (pyrus communis l.) cv. ‘Williams’. Dev. Plant Soil Sci., 1 (86) 87–90.
Henniger, G., 1981. Enzymatische Bestimmung von L-Ascorbinsäure in Lebensmitteln, Pharmazeutika und biologischen Flüssigkeiten, Alimenta 20, 12–14.
Ismail B., Haffar I., Baalbaki R., Henry J., 2001. Development of a total quality scoring system based on consumer preference weightings and sensory profiles: application to fruit dates (Tamr). Food Qual. Prefer., 12 (8), 499–506.
Jager A.,. Johnson D.S.,. Hohn E., 1996. Determination and prediction of optimum harvest date of apples and pears. Office for Official Publications of the European Communities, London ISBN 92-827-5427-8, p. 168. Postharvest Biol. Technol. 9, 3, 389–390.
Konopacka D., Jesionkowska K., Kruczyńska D., Stehr R., Schoorl F., Buehler A., Egger S., Codarin S., Hilaire C., Höller I., Guerra W., Liverani A., Donati F., Sansavini S., Martinelli A., Petiot C., Carbó J., Echeverria G., Iglesias I., Bonany J., 2010. Apple and peach consumption habits across European countries. Appetite, 55, 3, 478–483.
Leontowicz H., Gorinstein S., Lojek A., Leontowicz M., Cıź L., Soliva-Fortuny R., Park Y.-S., Jung S.-T., Trakhtenberg S., Martin-Belloso O., 2002. Comparative content of some bioactive compound in apples, peaches and pears and their influence on lipids and antioxidant capacity in rats. J. Nutr. Biochem., 13, 603–610.
Marschner H., 1995. Mineral nutrition of higher plants. Academic Press. London, 897–903.
Mirmiran P., Noori N., Zavareh M.B., Azizi F., 2009. Fruit and vegetable consumption and risk factors for cardiovascular disease. Metabolism, 58 (4), 460–468.
Nawirska A., Kwaśniewska M., 2005. Dietary fibre fractions from fruit and vegetable processing waste. Food Chem., 91 (2), 221–225.
Neto C., Carranca C., Clemente J., de Varennes A., 2008. Nitrogen distribution, remobilization and re-cycling in young orchard of non-bearing ‘Rocha’ pear trees. Sci. Hortic., 118, 4, 299–307.
Pedreschi R., Hertog M., Robben J., Noben J-P., Nicolai B., 2008. Physiological implications of controlled atmosphere storage of ‘Conference’ pears (Pyrus communis L.): A proteomic approach. Postharvest Biol.Technol. 50, 2–3, 110–116.
Senser, F., Scherz, H., München, G., 1999. Tablas de Composición de Alimentos, 2nd Edition (Editorial Acribia, Zaragoza).
Silos-Espino H., Fabian-Morales L., Osuna-Castro J.A., Valverde E., Guevara-Lara F., Paredes-López O., 2003. Chemical and biochemical changes in prickly pears with different ripening behaviour, Nahrung/Food, 47, 334–338.
Souza A.B., Chitarra M.F., Chitarra A., Machado J.C., 2001. Effects of calcium on wound healing and resistance of peach (Prunus persica (L.) Batsch cv. Biuti) to Monilinia fructicola (Wint.) honey. Ciênc.Agrotec., 616–624
Stelmach W., Kaczmarczyk-Chałas K., Bielecki W., Drygas W., 2005. How education, income, control over life and life style contribute to risk factors for cardiovascular disease among adults in a post-communist country. Public Health, 119 (6), 498–508.
Szczepaniak B., Górecka D., Flaczek E., 2004. Preferencje i częstotliwość spożycia owoców wśród dziewcząt i kobiet w ciąży. Acta Sci. Pol. Technologia Alimentaria, 3, 1, 175–185.
Ramulu, P., Rao, P.U., 2003. Total, insoluble and soluble dietary fiber contents of Indian fruits, J. Food Compos. Anal., 16, 677–685.
Thomidis T., Tsipouridis C., Darara V., 2007. Seasonal variation of nutrient elements in peach fruits (cv. May Crest) and its correlation with development of Brown rot (Monilinia laxa). Sci. Hortic., 111 (3), 300–303
Tomczak F., 1991. Food and agriculture policy in Poland: From peasant agriculture to market economy. Food Policy, 16, 3, 206–212.
Wójcik P., Wójcik M., 2003. Effects of boron fertilization on ‘Conference’ pear tree vigor, nutrition and fruit yield and storability. Plant Soil, 256, 413–421.
WIOŚ (Wojewódzki Inspektorat Ochrony Środowiska) Rzeszów. 2011. Monitoring powietrza w województwie podkarpackim.
Veltman R.H., Kho R.M., van Schaik A.C.R., Sanders M.G., Oosterhaven J., 2000. Ascorbic acid and tissue browning in pears (Pyrus communis L. cvs Rocha and Conference) under controlled atmosphere conditions. Postharvest Biol. Technol. 19, 129–137.
Zerbini P.E., Rizzolo A., Brambilla A., Grassi M., 2002. Loss of ascorbic acid during storage of Conference pears in relation to the appearance of brown heart. J. Sci. Food Agric. 82, 1–7.
Zydlik P., 2007. Sadownictwo na Ukrainie i w Polsce – wybrane aspekty. Nauka Przyr.Technol., 1, 1, 2–9.
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