Skip to main navigation menu Skip to main content Skip to site footer

Vol. 11 No. 3 (2012)

Articles

COMPARATIVE STUDY ON MINERAL CONTENT OF ORGANIC AND CONVENTIONAL APPLE, PEAR AND BLACK CURRANT JUICES

Submitted: December 28, 2020
Published: 2012-06-30

Abstract

The nutritional quality of food raised by organic farming in comparison to conventional farming is a currant topic that focuses interest and generate discussion. The data on nutritional quality of organic produce in comparison to conventional produce are often inconclusive. The study presents comparison of some nutritional values of juices made from organic and conventionally grown fruits (apple, pear, black currant). For the experiment 33 orchards located in the south and east of Poland were chosen. All organic farms were certified according to UE Council Regulation no. 2092/91 and obtained valid certificates. Unclarified juices were obtained with cold press juicer. After microwave mineralization in HNO3 the following nutrient elements were measured: P, K, Mg, Ca, S, Fe, Zn, Mn, Cu, B as well as Na, Cd, Pb, and Ni. Moreover, ammonium N and nitrates content were evaluated using FIA method. Black currant juices contained the highest amounts of Ca, K, Mg, P, S, Fe, Mn and Na. In the case of Ca, Fe and Mn the measured levels were ten times higher than for other juices. The highest content of Cu was proved for pear,
whereas apple juices revealed the highest B amount. The husbandry method also influenced the mineral content of the juices, however in different manner for each species. Organic apple juices were having lower content of S, Na, Cu, B i Ni than their conventional contra partners. Organic farming method favored higher accumulation of Ca, Mg, P, Na, Zn, Cu, B, Cd and Ni in organic currant juices. The only difference in pear juices was found analyzing Mg content. ‘Bio’ juices revealed lower amount of this element.

References

Amarante C.V.T., Steffens C.A., Mafra A.L., Albuquerque J.A., 2008. Yield and fruit quality of apple from conventional and organic production systems. Pesq. Agropec. Bras., Brasilia 43, 333–340.
Benbrook C., Xin Z., Yanez J., Davie N., Andrews P., 2008. New evidence confirms the nutritional superiority of plant-based organic foods. An Organic Center State of Science Review. Available from: http://www.organic-center.org (accessed 15.04.2010).
Bourn D., Prescott J., 2002. A comparison of the nutritional value, sensor qualities, and food safety of organically and conventionally produced foods. Crit. Rev. Food Sci. Nutr. 42, 1–34.
Dangour A., Dodhia S.K., Hayter A., Allen E., Lock K., Uauy R., 2009. Nutritional quality of organic foods: a systematic review. Am. J. Clin. Nutr., 90, 680–5. 10.3945/ajcn.2009.28041.
DeEll J.R., Prange R.K., 1993. Postharvest physiological disorders, diseases and mineral concentrations of organically and conventionally grown McIntosh and Cortland apples. Can. J. Plant Sci. 73(1), 223–230.
Eriksson J.E., 2001. Concentration of 61 trace elements in sewage sludge, farmyard manure, mineral fertilizers, precipitation and in oil and crops. Swedish EPA. Rep 5159. Stockholm.
Eriksen J., 2005. Gross sulphur mineralization-immobilization turnover in soil amended with plant residues. Soil Biol. Biochem. 37, 2216–2224.
Ferree D.C., Warrington I., 2003 Apples: Botany, Production and Uses. CABI Publishing, Cambridge.
Fliessbach A., Mäder P., 2000. Microbial biomass and size density factions differ between soils of organic and conventional agricultural systems. Soil Biol. Bioch. 32, 757–768.
Gąstoł M., Domagała-Świątkiewicz I., 2012. Organic versus conventional – a comparative study on quality and nutritional value of fruit and vegetable juices. Biol. Agric. Hort. (in press).
Guadagnin S.G., Rath S., Reyes F.G., 2005. Evaluation of the nitrate content in leaf vegetables produced through different agricultural systems. Food Addit. Contam. 22(12), 1203–1208.
Heaton S., 2001. Organic farming food quality and human health. A review of an evidence. Soil Association (www.soilassociation.org. (accessed 15.04.2010).
Hildermann I., Messmer M., Dubois D., Boller T., Wiemken A., Mader P., 2010. Nutrient use efficiency and arbuscular mycorrhizal root colonisation of winter wheat cultivars in different farming systems of the DOK long-term trial, J. Sci. Food Agr., 90, 2027–2038.
Holden P., 2001. Organic farming, food quality and human health: A review of the evidence. Soil Association, Bristol, U.K.
Hughner R.S., McDonagh P., Prothero A., Shultz C.J., Stanton J., 2007. Who are organic food consumers? A compilation and review of why people purchase organic food. J. Consumers Behaviors. 6, 94–110.
Kabata-Pendias A., 2011. Trace elements in soils and plants. CRC Press, Taylor & Francis Group, London.
Köpke U., 2005. Organic foods: do they have a role? Forum Nutr. 5(57), 62–72.
Lairon D., 2010. nutritional quality and safety of organic food. A review. Agron. Sustain. Dev. 30, 33–41.
Lester G.E., 2007. Organic vs conventionally grown Rio Red whole grapefruit and juice: comparison of production inputs, market quality, consumer, acceptance, and human healthbioactive compounds. J. Agric. Food Chem. 55(11), 4474–4480.
Lind K., Lafer G., Schloffer K., Innerhofer G., Meister H., 2003. Organic fruit growing. Cabi Publishing.
Mader P., Pfiffner L., Niggli U., Balzar U., Balzar F., Plochberger K., Velimirov A., Besson J.M., 1993. Effect of three farming systems (bio-dynamic, bio-organic, conventional) on yield and quality of beetroot (Beta vulgaris L. var. esculenta L.) in a seven year crop rotation. Acta Hort. 330, 10–31.
Matt D., Rembiałkowska E., Luik A., Peetsmann E., Pehme S., 2011. Quality of organic vs. conventional food and effects on health. Report Estonian University of Life Science.
Mayer A.M., 1997. Historical changes in the mineral content of fruits and vegetables. British Food J., 99(6), 207–211.
Pasławski P., Migaszewski Z. M., 2006 The quality of element determinations in plant materials by instrumental methods. Polish. J. Environ. Stud. 15, 154–164.
Peck G., Preston A.K., Reganold J.P., Fellman J.K., 2006. Apple orchard productivity and fruit quality under organic, conventional, and integrated management. HortSci. 41, 99–107.
Pither R., Hall M.N., 1990. Analytical survey of the nutritional composition of organically grown fruit and vegetables. Technical Memorandum 597. MAFF Project 4350.
Raigón M.D., Rodríguez-Burruezo A., Prohens J., 2010. Effects of organic and conventional cultivation methods on composition of eggplant fruits. J Agric Food Chem. 2010. 58 (11), 6833–40.
Rembiałkowska E., 2000. The nutritive and sensory quality of carrots and white cabbage from organic and conventional farms. Proc.13th IFOAM Sci. Conf. 28–31 August 2000 Zurich, 297.
Rembiałkowska E., 2003. Organic farming as a system to provide better vegetable quality. Proceeding of the international conference on quality in chains. An integrated view on fruit and vegetable quality. 6–9 July 2003 Wageningen, The Niderlands. Acta Hort., 604, 473–477.
Rembiałkowska E., 2007. Quality of plant products from organic agriculture. J. Sci. Food Agric., 87, 2757–2762. doi: 10.1002/jsfa.3000
Rossi F., Godani F., Bertuzzi T., Trevisan M., Ferrari F., Gatti S., 2008. Health-promoting substances and heavy metal content in tomatoes grown with different farming techniques. Eur. J. Nutr. 47(5), 266–272.
Schuddeboom L.J., 1993. Nitrates and nitrites in foodstuffs. Council of Europe Press.
Smith B., 1993. Organic foods vs. supermarket foods: element levels. J. Appl. Nutr., 45, 35–39.
Weibel F.P., Bickel R., Leuthold S., Alfoldi T., 2000. Are organically grown apples testier and healthier? A comparative field study using conventional and alternative methods to measure fruit quality. Acta Hort. 517, 417–426.
Winter C.K., Davis S.F., 2006. Organic food. J. Food Sci., 71, 117–124.
Woëse K., Lange D., Boess C., Bögl K.W., 1997. A comparison of organically and conventionally grown foods – results of a review of the relevant literature. J. Sci. Food Agric. 74, 281–293.
Worthington V., 2001. Nutritional quality of organic versus conventional fruits, vegetables, and grains. J. Alter. Compl. Med. 7, 161–173.

Downloads

Download data is not yet available.

Most read articles by the same author(s)