Main Article Content
The study aimed at establishing the effect of hormone and ripening agent on mass transfer as well as to find the effect of solution type and fruit to solution ratio for mass transfer of pineapple. Two types of pineapple, organic pineapple and GRM pineapple (pineapple cultivated with growth regulator and medicine) were collected and sliced into 8mm thickness. The slices were immersed in 60% sugar, 55/5% sugar-salt mixture solution for different periods of time at three different fruit to solution ratio (1:6, 1:8 and 1:10) and mass transfer coefficient were determined from the data. Results indicated that for organic pineapple mass transfer coefficient was higher than GRM pineapple (0.1583/min1/2 vs. 0.1502/min1/2). Again, for 55/5% sugar-salt mixture solution, mass transfer coefficient was higher than 60% sugar solution. Maximum rate of mass transfer (0.2281/min1/2) was determined at 1:6 fruit to solution ratio and minimum (0.1504/min1/2) was at 1:10 fruit to solution ratio for GRM pineapple.
Bose TK, Mitra SK. Fruits tropical and subtropical, NayaProkash, Calcutta. 1990; 250-275
FAO. Food composition table for use East Asia. US Department of Health, Education and Welfare; 1972.
Sen SK, Roy A, Bose TK. Pineapple production and utilization Calcutta; 1980.
BBS: Statistical Year Book of Bangladesh Bureau of Statistics. Stattistics Division, Ministry of planning. Government of the People’s Republic of Bangladesh; 2011.
Gailani MB, Fung DY, Kraft AA. Critical review of water activities and microbiology of drying of meats. Critical Reviews in Food Science & Nutrition. 1987;25(2):159-83. DOI:https://doi.org/10.1080/10408398709527450
Islam MN. Influence of process parameters on the effectiveness of osmotic dehydration of some fruits and vegetables. Bangladesh J. Agril. Engg. 1990;4(1&2): 65-73.
Hawkes J, Flink JM. Osmotic concentration of fruit slice prior to freeze dehydration. J. Food Proc. Preserv. 1978;2:265-284.
Morton P, Richberg CG. Inventors; Lever Brothers Co, assignee. Process for preparing dehydrated fruits. United States patent US 3,365,309; 1968.
Islam MN, Flink JM. Dehydration of potato 11. Osmotic concentration and its effect on air drying behaviour. J. Food Technol. 1982;17:387-403. DOI:https://doi.org/10.1111/j.1365-2621.1982.tb00194.x
Farkas DF, Lazar ME. Osmotic dehydration of apple pieces. Effect of temperature and syrup concentration. Food Technol. 1969;23:688-690.
Hope GW, Vitable DG. Osmotic dehydration: International development center Monographs IDRC-004. Hawa, Ontario, Canada. 1972;12-14.
Islam MN, Cowell ND. The kinetics of water loss in the osmotic dehydration of sweet potato. Bangladesh J. Agril. Engg. 1989;3(1&):2.
Cooper WC, Reese PC. Induced flowering of pineapples under Florida conditions. Proc. Fla. State Hortic. Soc.;(United States), 1941;54(CONF-410401-).
Sahoo AK, Kar I, Panda R, Bhoyar RK, Mohanty A. Use of plant growth regulators and fertilizer for regulating the flowering and quality of pineapple fruit–A review. Integrated Journal of British. 2015; 2(5):30-37.
Suwandi T, Dewi K, Cahyono P. Pineapple harvest index and fruit quality improvement by application of gibberellin and cytokinin. Fruits. 2016;71(4):209-214.
Hossain MF, Islam MA. Pineapple production status in Bangladesh. Agriculture, Forestry and Fisheries. 2017; 6(5):173-177.
Rangana S. Hand book of analysis and quality control for fruit and vegetable product, 2nd. Ed. Pun. Tata McgrawHill Publishing company Ltd., New Delhi ; 990.
Islam MN. Use of solar energy for development of shelf stable potato products. Ph.D. Thesis. Royal Veterinary and Agricultural University, Copenhagen, Denmark; 1980.
dos Santos Falcão Filho R, de Gusmão RP, da Silva WP, Gomes JP, CarvalhoFilho EV and El-Aouar AA. Osmotic dehydration of pineapple stems in hypertonic sucrose solutions. Agricultural Sciences. 2015;6(09): 916.
Uddin MB, Islam MN. Development of shelf stable pineapple products by different methods of drying. J Agric Eng Inst Eng Bangladesh. 1985;13(1):5-13.