PHYSICAL PROPERTIES OF EGYPTIAN ARTICHOKE HEADS “KHARSHOOF" | ||
| Misr Journal of Agricultural Engineering | ||
| Article 13, Volume 31, Issue 1, January 2014, Pages 243-264 PDF (1.27 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/mjae.2014.99997 | ||
| Authors | ||
| Soliman Nassif1; Hussien Elsoury2; Azhar El-Werch2 | ||
| 1Prof. of Food Engineering, Faculty of Agriculture, Alexandria Univ., Egypt. | ||
| 2Researcher at Agricultural Engineering Research Institute, Agricultural Research Center, Ministry of Agriculture, Egypt. | ||
| Abstract | ||
| Artichoke physical properties studies are very important as design parameters for each of handling, sorting and packing applications. Some physical characteristics and mechanical properties of the local artichoke cultivar (Balady) were investigated directly after harvesting at a moisture content of about 86.17% (wet basis). The physical characteristic include equatorial diameters, height, single bud volume, surface area and weight, spheresty, particle density, bulk density and porosity. The mechanical properties include the parameters of stress-strain radial compression test as bio-modulus of elasticity, bio-yield force, yield stress and strain, and bio-rupture stress and strain. The results showed that the artichoke buds which were under study had diameter range from 46.455 to 112.64 mm, height between 61.83 to 128.26 mm, volume from 76.00 (10 -6 m3) to 897.75 (10 -6 m3), surface area between 92.285 (10 -4 m2) to 384.307 (10 -4 m2), weight between 44 to 463.92 (g), particle density between 441 to 696 kg /m3, and bulk density between 167.00 to 196.26 with an average equal to 179.84 kg/m3, spheresty between 0.738 to 0.995 and porosity between 59.28% to 74.19%. The mechanical properties of artichoke bud were determined under radial compression test in terms of initial bio modulus of elasticity, secondary bio modulus of elasticity, bio yield stress, bio yield strain, bio yield energy, bio rupture stress, bio rupture strain; and bio rupture energy. The mean value of initial bio modulus of elasticity (7.121 MPa), secondary bio modulus of elasticity (8.350 MPa), bio yield stress (0.351 MPa), bio yield strain (0.051), bio yield energy (0.298 N.m), bio rupture stress (2.352 MPa), bio rupture strain (0.485) ; and bio rupture energy (12.525 N.m). The stress-strain parameters at 10% strain as a nondestructive test were determined for each artichoke head. The stress and deformation energy ranged from 0.175 to 0.526 MPa and from 0.060 to 0.302 N.m. respectively, with the corresponding displacement range from 1.819 to 4.646 mm for the artichoke head under study. | ||
| References | ||
|
Arcas L., A. J. Fernández (2007). Analysis of the artichoke trade. Available at: http://www.actahort.org/books/730/index.htm
Artichoke world production. 2002. Available at:
http://www.ers.usda.gov/Briefing/Vegetables/vegpdf/ArtichokeHigh.pdf
Anderson, J., & Garner, S. (1997). Phytoestrogens and human function. Nutrition Today, Vol. 32(6); Nov./Dec: p.232-239.
Brand N. (1990). Cynara scolamus L–the artichoke [translated from German].Z Phytother.1990;11:169–175.
Carlo, F. (2001). The artichoke, symbolic vegetable of the Mediterranean. Available at
http://editore.slowfood.com/editore/riviste/slowark/EN/41/01_Atenderheart.pdf
Diane, B.; R. Dismukes ; J. Harwood ;A. Somwaru and G. Zepp, Coordinator (1995). Globe artichokes, an economic assessment of the feasibility of providing multiple-peril crop insurance.U.S. Department of Agriculture for the Consolidated Farm Service Agency, November 20, 1995.URL:
www.rma.usda.gov/pilots/feasible/PDF/artichok.pdf
FAO (2005), Food and Agricultural Organization of the United Nations. Statistical Database- Agriculture. Accessed July 2005.
FAO (2012), http://faostat3.fao.org/home/index.html#DOWNLOAD
Janick, J. and A. Whipkey (2002). Trends in new crops and new uses. 2002. Reprinted by Bharat P. Singh. Available at: www.hort.purdue.edu/newcrop/ncnu02/pdf/singh.pdf
kenanaonline, (2007). Artichokes. http://www.kenanaonline.com/page/health
Lovre B, P. Slavko, and G. Smiljana (2000). Evaluation of Artichoke (Cynara scolymus L.) Cultivars in Three Growing Seasons. Journal of Agriculturae Conspectus Scientificus (ACS). 2000;Vol. 65 No.1. http://hrcak.srce.hr/index.php?lang=en&show=clanak&id_clanak_jezik=19259
Leela D. (1998). Anonymous. Artichoke Extract: Improves Digestion, Liver Function, and Cholesterol Levels. Natural Medicine Journal. Aug./Sept., 1998; Vol. 1, No. 7, pp. 2224.
Leslie, T. (2005). The Healing Power of Rainforest Herbs. published in March 2005.URL: http://www.rain-tree.com/book2.htm
Moharram, Y. G.; Khalil, M. K. and Mostafa, M. M. (1981). Artichoke bracts (Cynara scolymus) as a source of protein. Monoufeia Journal of Agricultural Research. (1981) 4: 273-283.
Mohsenin, N. N. Physical Properties of Plant and Animal Materials, 3 ed. New York, USA: Gordon and Breach Science Publishers, 1986.
Peter H. (1998). Artichokes the big apple. Available from:
http://www.usasbe.org/knowledge/proceedings/1998/09-Hackbert.PDF
Smits, P.J. (1989). Market development in western Europe in relation to vegetable diversification.. Available at:
http://www.actahort.org/books/242/242_2.htm
Stevens, C. and J. Kennan, (1999). ‘Will Africa’s participation in horticultural. chains survive liberalization.’ IDS Working Paper No. 106. Sussex, U.K.: Available at:
Tabei, M. (2007). Analysis of export demand for Egyptian artichoke. African crop Science Society, 2007, Vol. (8) pp: 1265 - 12
UC Davis (2007). Nutritional value of artichoke heads. Vegetable Research and Information Center. Home Vegetable Gardening. URL:
U.N. (2003). United Nations, economic and social council, economic commission for Europe, working party on agricultural quality standards, report for the fifty ninth sessions, Geneva, 4 to 6 November 2003.
URAC (2005). Utilization Review Accreditation Commission; (health care accreditation & certification). Artichoke. Available at:
http://healthlibrary.epnet.com/GetContent.aspx?token=8482e079-8512-47c2-960c-a403c77a5e4c&chunkiid=21516 's.
William L. S., E. R. Vincent, H. S. Richard and W. H. Lange (2007). Artichoke, globe cynara scolymus. URL: http://vric.ucdavis.edu/ veginfo/commodity/artichoke/globeartichokes.pdf | ||
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