Studies on some Engineering Properties of Sapota (Achras zapota)
DOI:
https://doi.org/10.52151/jae2004411.1061Abstract
Physical properties, namely size, shape, weight, density and frictional properties, namely peak static, peak dynamic and average dynamic coefficients of friction (COF) on four common construction surfaces, and mechanical properties, like puncture and compression with respect to storage period for sapota (Achras zapota) fruit were measured using standard procedures. The average geometrical mean diameter of sapota was 54.0 mm. Bulk and true densities of sapota were 584.9 kg/m' and 1040.8 kg/m'. Peak static, peak dynamic and average dynamic COF of sapota varied from 0.24 (for rubber sheet) to 0.30 (for aluminium), from 0.34 (for stainless steel) to 0.39 (for rubber sheet), and from 0.26 (for rubber sheet) to 0.33 (for aluminium), respectively. The fruit firmness was measured as 325.6 on fourth and 240.7 N on sixth day of harvest.
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References
ASAE 2001 Standards, Cubes, pellets and crumbles Definitions and methods for determining density, durability and moisture content. 269.4. American Society of Agricultural Engineers, St. Joseph, MI.
ASAE 1990. Standards. Friction coefficients of chopped forages. 257.1. American Society of Agricultural Engineers, St. Joseph, MI
Churchill DB; Sumner HR; Whitney J D. 1980. Peel Strength properties of three orange varieties. Transactions of the ASAE, 23 (1),173-176.
Eudell Vis; David F.Wolf; Stout B A; Dewey D H. 1969. Experimental evaluation of physical properties of Apple fruit pertaining to orientation. Transactions of the ASAE, 12(5), 673-680.
Fluck F C; Wright F S; Splinter W E. 1968. Compression plunger, skinning and friction properties of sweet potatoes. Transactions of the ASAE,.U(2), 167-174.
Kute L S; Shete M B. 1995. Sapota (Sapodilla). In: Hand book of Fruit Science and Technology, Production, Composition, Storage, and Processing. Editors: Salunkhe and Kadam S S, Marcel Dekker, Inc., New York.
Laxminarayana S. 1980. Sapodilla and prickly pear. In: Tropical and Subtropical Fruits. Editors: Nagy S and Shaw PE. AVI, Westport, CT.
Mohsenin NN. 1970. Physical properties of plant and animal materials. Gordon and Breach Science Publishers, New York.
Prabhuram R. 1999. Sapota variety "Kalipatti". High Potential Crop for Export, Agriculture and Industry Survey, 9(12), 21.
Puchalski C; Brusewitz G H. 1996. Coefficients of friction of watermelon. Transactions of the ASAE, 39(2), 589-594.
Schaper LA; Yaeger EC. 1992. Coefficients of friction of Irish potatoes. Transactions of the ASAE, 35(5), 1647-1651.
Singh K K; Reddy B S; Varshney A C; Mangaraj S. 2003. Physical and frictional properties of citrus fruits. ASAE, Paper No. FPE 1901.
Thompson RA; Issac GW. 1967. Porosity determination of grains and seeds with air compression pycnometer. Transactions of the ASAE, 10(5), 693-696.
