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2013 | 27 | 4 |

Tytuł artykułu

Physicochemical and grinding characteristics of dragonhead seeds

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The results of investigations on the physicochemical and grinding characteristics of Moldavian dragonhead seeds are presented. The data obtained showed that the physical properties (average size, sphericity, surface area, 1 000 seed mass, dynamic angle of repose, coefficient of static friction, and bulk and true densities) of the white and blue form of dragonhead seeds were not significantly different. Both forms of dragonhead showed similar levels of protein (average of 21%), whereas the blue form of dragonhead had a lower fat content (average of 23.1%) and higher mucilage content (13.35%) in comparison to the blue form of seed (24.6 and 9.95%, respectively). Antioxidant capacity of dragonhead seeds was comparable for both forms and averaged about 40%, which corresponded to EC50 values of 0.12 and 0.13 mgml-1 for the white and blue forms, respectively. The grinding material showed similar particle size distribution of ground material for both forms of dragonhead seeds. The lowest values of specific grinding energy were obtained for the white form of dragonhead seeds, those for the blue form were significantly higher. Grinding of dragonhead seeds using a screen 2.0 mm mesh size caused screen hole clogging. This problem did not occur when dragonhead seeds were mixed with wheat grain.

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  • Department of Thermal, University of Life Sciences, Doswiadczalna 44, 20-280 Lublin, Poland
  • Institute of Agrophysics, Polish Academy of Sciences, Doswiadczalna 4, 20-290 Lublin, Poland
  • Department of Physics, University of Life Sciences, Akademicka 13, 20-9500 Lublin, Poland
  • Department of Equipment Operation and Maintenance in the Food Industry, University of Life Sciences, Doswiadczalna 44, 20-280 Lublin, Poland
  • Department of Pharmacognosy with Medical Plant Laboratory, Medical University in Lublin, Chodzki 1, 20-093 Lublin, Poland
  • Department of Biochemistry and Food Chemistry, University of Life Sciences, Skromna 8, 20-704 Lublin, Poland


  • Aghkhani M.H., Miraei Ashtiani S.H., Baradaran Motie J., and Abbaspour-Fard M.H., 2012. Physical properties of Christmas Lima bean at different moisture content. Int. Agrophys., 26, 341-346.
  • AOAC, 1995. Official Methods of Analysis of the Association of Official Chemists (Ed. K. Helrich), Association of Official Analytical Chemists, Arlington, VA, USA.
  • Dastmalchi K., Dorman H.J.D., Laakso I., and Hiltunen R., 2007. Chemical composition and antioxidative activity of Moldavian balm (Dracocephalum moldavica L.) extracts. Food Sci. Technol. – LEB, 40, 1655-1663.
  • Domokos J., Peredi J., and Halaszzelnik K., 1994. Characterization of seed oils of dragonhead (Dracocephalum moldavica L.) and catnip (Nepeta cataria var. citriodora Balb.). Ind. Crop Prod., 3, 91-94.
  • Dziki D., 2008. The crushing of wheat kernels and its consequence on the grinding process. Powder Technol., 185, 181-86.
  • Dziki D., Cacak-Pietrzak G., Mioe A., Joñczyk K., and Gawlik-Dziki U., 2012. Influence of wheat kernel physical properties on the pulverizing process. J. Food Sci. Technol. DOI 10.1007/s13197-012-0807-8.
  • Dziki D., Laskowski J., Siasta³a M., and Biernacka B., 2009. Influence of moisture content on the wheat kernel mechanical properties determined on the basis of shear test. Int. Agrophys., 24, 237-242.
  • Dziki D. and Laskowski J., 2010. Study to analyze the influence of sprouting of the wheat grain on the grinding process. J. Food Eng., 96, 562-567.
  • Gawlik-Dziki U., OEwieca M., and Dziki D., 2012. Comparison of phenolic acids profile and antioxidant potential of six varieties of spelt (Triticum spelta L.). J. Agric. Food Chem. 60(18), 4603-4612.
  • Hanaa H., El-banky A., and El-baroty G.S., 2007. Chemical and biological evaluation of the essential oil of Egiptian Moldavian balm. Global J. Biotech Biochem., 2, 74-80.
  • Hanczakowski P., SzymczykB.,Kwiatkowski S., and Wolski T., 2009. Composition and nutritive value of protein of Moldavian balm seeds (Dracocephalum moldavica L.) (in Polish).Roczniki Nauk Zootechnicznych, 36, 55-61.
  • Jha S.N. and Sharma R.S., 2010. Physical, gravimetric and functional characterization of various milling fractions of popped gorgon nut (Euryale ferox). J. Food Sci. Technol., 47, 564-570.
  • Mohsenin N.N., 1980. Physical Properties of Plant and Animal Mterials. Gordon Breach Sci. Press, New York, USA.
  • OgunsinaB.S.,Olaoye I.O.,AdegbenjoA.O., andBabawale B.D., 2011. Nutritional and physical properties of kariya seeds. Int. Agrophys., 25, 97-100.
  • PanasiewiczM., Grochowicz J., and Sobczak P., 2009. Influence of hydrothermal processes on selected physical properties of oat grain. J. Food. Eng., 90, 81-89.
  • Polish Pharmacopoeia (in Polish), 2002. Polish Pharmaceutical Society Press, Warsaw, Poland.
  • Pujol R., Letang C., Lempereur A., Chaurand M., Mabile F., and Abecassis J., 2000. Description of a micromill with instrumentation handicap measuring grinding characteristics of wheat kernel. Cereal Chem., 77, 421-427.
  • Re R., Pellegrini N., Proteggente A., Pannala A., Yang M., and Rice-Evans C., 1999. Antioxidant activity applying an improved ABTS radical cation decolorisation assay. Free Radical Bio. Med., 26, 1231-1237.
  • Said-Al-Ahl H.A.H., and Abdou M.A.A., 2009. Impact of water stress and phosphorus fertilizer on fresh herb and essential oil content of dragonhead. Int. Agrophys., 23, 403-407.
  • Sedej I.J., Sakac M.B., Misan A.C., and Mandic A.I., 2010. Antioxidant activity of wheat and buckwheat flours, Proc. Nat. Sci., 188, 59-68.
  • Singleton V.L. and Rossi J.A., 1965. Colorimetry of total phenolicswitch phosphomolybdic-phosphotungstics acid reagents. Am. J. Enol. Viticult, 16, 144-158.
  • Sultan A., Bahang A., Aisa H.A., and Eshbakova K.A., 2008. Flavonoids from Dracocephalum moldavica. Chem. Nat. Compd., 44, 336-337.
  • Tunde-Akintunde T.Y. and Akintude B.O., 2004. Some physical properties of sesame seed. Biosyst. Eng., 88, 127-129.
  • Yurtlu Y.B., Yesiloglu E., and Arslanoglu F. 2010. Physical properties of bay laurel seeds. Int. Agrophys., 24, 325-328.
  • Zhou K. and Yu L., 2004. Effects of extraction solvent on wheat bran antioxidant activity estimation. Food Sci. Technol. – LEB, 37, 717-772.


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