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Precooling effects on the quality of selected vegetables during storage | |
Author | Malee Kitvekin |
Call Number | AIT Thesis no.AE-85-23 |
Subject(s) | Vegetables--Storage |
Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science, School of Environment, Resources and Development |
Publisher | Asian Institute of Technology |
Abstract | In this study, the effects of precooling on the quality of selected vegetables such as babycorn, chilli and yard long bean were studies at Thailand Institute of Science and Technology Research during January-April 1985. The precooling methods consisted of conventional room, forced-air cooling and hydrocooling. The quality criteria monitored during storage were moisture content, weight loss, texture and appearance by rating (scoring) the color and freshness of the commodities studied. Total soluble solids for corn were also determined and mold development in chilli was visually assessed. Hydrocooling proved to be an effective means for rapid cooling and required only 2 to 9 minutes depending on the type of vegetables. However it adversely affected the quality of babycorn and chilli. Browning was observed to occure rapidly on babycorn while the chilli became more susceptible to mold development. On the other hand, hydrocooling had good effects on the quality of yard long bean indicating more freshness than other precooling methods. Thus forced-air cooling was a preferred method for babycorn and chilii. |
Year | 1985 |
Type | Thesis |
School | School of Environment, Resources, and Development (SERD) |
Department | Other Field of Studies (No Department) |
Academic Program/FoS | Agricultural and Food Engineering (AE) |
Chairperson(s) | Jindal, Vinod Kumar |
Examination Committee(s) | Illangantileke, Sarath G. ;Gupta, Chandra P. |
Scholarship Donor(s) | The Government of Australia |
Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1985 |