DESIGN AND FABRICATION OF AN EXTRACTION MACHINE FOR TOMATO SEEDS

El-Iraqi, M.E.; El Khawaga, S.E. El Khawaga; Awais, T.R.

doi:10.21608/mjae.2012.102553

DESIGN AND FABRICATION OF AN EXTRACTION MACHINE FOR TOMATO SEEDS

Document Type : Original Article

Authors

Senior Researcher, Agric. Eng. Res. Inst., Agric. Res. Center, Egypt.

10.21608/mjae.2012.102553

Abstract

An extraction machine for tomato seeds was designed, locally fabricated and evaluated. The performance of the designed extraction machine was evaluated based on seed loss, extraction efficiency, cleaning efficiency and energy requirements. The evaluation was calculated at different operation conditions including different crushing/separation speeds from 1.31 to 3.66 m/s, feed rates from 6o to 240 kg/h and inclination angle of extraction unit from 0 to 12 deg. The obtained results concluded that:

· Increasing or decreasing the crushing/separating drum speed more or less than 2.88 m/s and increasing or decreasing the inclination angle of extraction machine more or less than 8 deg were observed to cause an increase in seed losses, consequently caused a decrease in both of seed cleaning efficiency and seed extraction efficiency at any given feeding rates.
· The seed losses were found to be proportional to feeding rate. However, the seed cleaning efficiency, seed extracting efficiency and required energy were found to be inversely proportional to the feeding rate.
· Using the study variable combinations of 2.88 m/s crushing/separating drum speed and 8 deg inclination angle gave the maximum values of seed extraction efficiency 95.20, 93.46, 92.60 and 90.73 % at feeding rates of 60, 120, 180 and 240 kg/h, respectively.
· Increasing the crushing/separating drum speed from1.31 to 3.66 m/s decreased the required energy from 11.04 to 16.90 kW.h/ton at a feed rate of 60 kg/h and inclination angle of 8 deg. Utilizing the designed tomato seed extraction machine proved to be very cost effective and was able to save more than 37% in extraction cost.

Main Subjects

Agricultural Power and Machinery Engineering

References

Al-Gaadi K. A.; S. A. Marey and I. F. Sayed-Ahmed (2011). Development and performance evaluation of a summer squash seed extraction machine. Middle-East J. Sc. Res. 7 (3): 352-361. ISSN 1990-9233. IDOSI Pub.

AOAC (1976). Approved methods association of analytical chemists, 13th end. St. Paul, Minnesota : 234-238.

AOSA )2000(. Association of Official Seed Analysts, Contrib. 29. Handbook on seed testing. Lincoln, NE: AOSA. 302p.

Aviara, N. A., S. K. Shittu and M. A. Haque, (2008). Development and performance evaluation of a guna seed extractor. Ag. Eng. I. : the CIGRE J., manuscript PM 07036, Vol. X, : 120-142.

Awady, M. N. (2011). Measuring instruments, TxtBk., Ag. Eng. Dept., Al Azhar U. and Ain Shams U., : 161p. (In Arabic).

Demir, I. and Y. Samit (2001). Quality of tomato seeds as affected by fruit maturity at harvest and seed extraction method. Gartenbauwissenschaft, 66 (4). S: 199–202, ISSN 0016–478X. Verlag Eugen Ulmer GmbH & Co., Stuttgart, (Ankara/Turkey).

EAS (2010). Economic Affairs Sector, Egyptian Min. Ag. and Land Recl., Ag. statistics. Table No. (5-6).

George, R. A. T. (1985) : Vegetable seed production. Longman, London: 57-89.

Hunt, D. (1983). Farm power and machinery management. 8^th ed. Iowa state Univ. Press. Ames, Iowa, USA: 86-107.

Ibrahim, M. K. (1982). Wet milling of wheat grain, M.Sc. Th., Fac. of Agric., Mansoura Univ., Egypt.

Kachru, R. P. and J. T. Sheriff (1992). Performance evaluation of axial flow vegetable seed extractor. Indian J. of Ag. Eng., 2(1): 37-40.

Kailappan R.; P. K. Baig; N. Varadharaju; K. Appavu; and V. Krishnasamy (2005). Fabrication and testing of tomato seed extractor. Agric Mech Asia Afr Lat Am, VOL.36; 62-66.

Mohsenin N. N. (1980). Physical properties of plant and animal materials: Godon And Breach Science Publishers, New York :183-205.

Sogi, D. S., and A. S. Bawa (1998). Studies on dehydration of tomato processing waste. Indian Food Packer, 52(2),: 26–29.

Stevens, M. A. and C. M. Rick (1986). Genetics and breading in J. G. Atherton and J. Rudich (Eds) "The Tomato Crop"; P:35-109. Chapman and Hall, London.

Tonucci, L. H., J. M. Holden , G. R. Beecher, F. Khachik, C. S. Davis and G. Mulokozi (1995). Carotenoid content of thermally processed tomato-based food products. J. Ag. and Food Chem., 43,: 579–586.

Vergano, P. J. ; R. F. Testion; A. C. Choudhari and W. C. Newall (1992). Peach vibration bruising, The effect of paper and plastic films between peaches. J. of Food Quality 15 (3): 183-197.