Abstract
The aonla fruits (whole fruit, pricking, splits, segments) were subjected to pretreatments like blanching, osmotic dehydration with salt (2%) and sugar (40%) in different experiments before drying to obtain a product with better keeping quality. An LPG based drier (CRIDA drier) with capacity to dry 50 kg of fresh Indian gooseberry (aonla) was used. Nutritional quality and rehydration characteristics of CRIDA drier dried products were higher and free from contamination. Drying time was shortest for blanched and osmotically dehydrated segments dried in CRIDA drier and the product had better vitamin C retention, rehydration characteristics and sensory acceptability compared to sun or cabinet drier dried product. The additional expenditure spent on gas in CRIDA drier is compensated by reduced labour cost and higher price for the better quality product. Alternate energy sources like biogas and biomass can be used as fuel in the CRIDA drier.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Amin HD, Bhatia BS (1962) Studies on dehydration of some tropical fruits. Part. V. Nutritive value of the products. J Food Sci 11:85–87
AOAC (2000) Official methods of analysis, 7th edn. Association of Official Analytical Chemists, Washington DC
Bechoff AA, Dufour DBC, Dhuique-Mayer CB, Marouzé CB, Reynes MB, Westby AA (2009) Effect of hot air, solar and open air drying treatments on provitamin retention in orange-fleshed sweet potato. J Food Eng 92:164–171
Beinyuy E, Joseph E (2004) A solar tunnel drier for natural convection drying of vegetables and other commodities in Cameroon. Agric Mech Asia Afr Lat Am 35:31–35
BIS (1971) IS: 6273 Part I and II, guide for sensory evaluation of foods. Bureau of Indian Standards, New Delhi
Damodaran T, Atturi BL, Medhi RP, Nair SA, Alex L (2001) Studies on post harvest of sapota (Achras sapota) cv. ‘Cricket Ball’ during storage. Indian J Hortic 58:342–345
Doymaz I (2007) Air-drying characteristics of tomatoes. J Food Eng 78:1291–1297
Ertekin C, Yaldiz O (2004) Drying of eggplant and selection of a suitable thin layer drying model. J Food Eng 63:349–359
Goyal RK, Patil RT, Kingsly ARP, Himanshu W, Pradeep K (2008) Status of post harvest technology of aonla in India. A review. Am J Food Technol 3:13–23
Krokida MK, Maroulis ZB (2001) Structural properties of dehydrated products during rehydration. Int J Food Sci Technol 36:529–538
Kumar S, Nath V (1993) Storage stability of amla fruits: a comparative study of zero-energy cool chamber versus room temperature. J Food Sci Technol 30:202–203
Kumar SP, Sagar VR (2009) Influence of packaging materials and storage temperature on quality of osmo vac dehydrated aonla segments. J Food Sci Technol 46:259–262
Mitra SK, Pathak PK, Chakraborty I (2008) Underutilized tropical and subtropical fruits of Asia. Acta Hortic 770:67–76
Mudgal VD, Pande VK (2009) Thin layer drying kinetics of bittergourd (Momordica charantia L.). J Food Sci Technol 46:236–239
Ndawula J, Kabasa JD, Byaruhanga YB (2004) Alterations in fruit and vegetable β-carotene and vitamin C content caused by open-sun drying, visqueen-covered and polyethylene-covered solar-driers. Afr Health Sci 4:125–130
Negi PS, Roy SK (2000) Effect of blanching and drying methods on beta carotene and ascorbic acid and chlorophyll retention of ascorbic acid. Lebensm-Wiss Technol 33:295–298
Pathak PK, Preeti D, Kumar S (2009) Effect of post-harvest treatments on shelf-life of aonla (Emblica officinalis) fruits damaged during harvesting. J Food Sci Technol 46:283–285
Pervin S, Islam MS, Islam MN (2008) Study on rehydration characteristics of dried lablab bean (Lablab purpureus) Seeds. J Agric Rural Dev 6:157–163
Pragati DS, Dhawan SS (2003) Effect of drying methods on nutritional composition of dehydrated aonla fruit (Emblica officinalis Garten) during storage. Plant Foods Hum Nutr 58:1–9
Ranganna S (1986) Handbook of analysis and quality control for fruits and vegetable products, 2nd edn. McGraw-Hill, New Delhi, p 171, 281
Sagar VR, Kumar R (2006) Preparation and storage study of ready-to-eat dehydrated gooseberry (aonla) shreds. J Food Sci Technol 43:349–352
Singh NA, Saini AB, Gupta AKC (2007) Nutritional quality of osmotically dehydrated aonla (Emblica officinalis) fruit segments. Indian J Agric Biochem 20:89–91
Singh S, Singh AK, Josh HK, Bagle BG, Dhandar DG (2009) Evaluation of packages for transportation and storability of aonla (Emblica officinalis) under semi-arid environment of Western India. J Food Sci Technol 46:127–131
Taiwo KA, Angersbach A, Ade-Omowaye BIO, Knorr D (2001) Effects of pre-treatment on the diffusion kinetics and some quality factors of osmotically dehydrated apple slices. J Agric Food Chem 49:2804–2811
Verma RC, Gupta A (2004) Effect of pre-treatments on quality of solar-dried aonla. J Food Eng 65:397–402
Wilkinson L, Hill M, Welna JP, Birkenbevel BK (1996) Systat for windows version, 6th edn. SPSS Inc, Evanston
Yang S, Yang Y, Yang W (2008) Advances in research and development of Phyllanthus emblica L. Chin J App Environ Biol 14:846–854
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Gudapaty, P., Indavarapu, S., Korwar, G.R. et al. Effect of open air drying, LPG based drier and pretreatments on the quality of Indian gooseberry (aonla). J Food Sci Technol 47, 541–548 (2010). https://doi.org/10.1007/s13197-010-0093-2
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s13197-010-0093-2