| Author | Bui Thi Quynh Hoa |
| Call Number | AIT Thesis no.PH-00-17 |
| Subject(s) | Mushrooms--Preservation
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
Master of Science |
| Publisher | Asian Institute of Technology |
| Abstract | Mushroom preservation by curing in salt and citric acid solutions was investigated in
laboratory experiments. The mushrooms were initially blanched in boiling water for 3 minutes
and cooled before placing them into different concentrations of citric acid (2-6%), salt (25-
35%) and mixtures of citric acid (2-4%) and salt (6%). All samples were treated with
antimicrobial agent (1000 ppm sorbic acid) and maintained at ambient temperature of
26+2°C.
The effects of all curing treatments on mushroom quality and stability were evaluated
for 1-month duration. These included the changes in the moisture content due to osmotic
dehydration, salt uptake, citric acid uptake and pH of solution.
Chemical analysis, physical examination and sensory evaluation of all treated
mushrooms were carried out. The sample having good characteristics in terms of good color,
taste, appearance, overall acceptability and preservability was obtained under experimental
conditions of curing in a mixture of 6% of salt and 2% of citric acid solution.
The results of this study showed considerable promise for improving the quality of
preserved mushroom and could be used by the manufactures.
Finally, the relationship models were developed for estimating salt and citric uptake in
relation with theirs concentration and curing time. |
| Year | 2000 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Food, Agriculture and Natural Resources (Former title: Department of Food Agriculture, and BioResources (DFAB)) |
| Academic Program/FoS | Postharvest and Food Process Engineering (PH) |
| Chairperson(s) | Jindal, V. K. ;Rakshit, Sudip K.; |
| Examination Committee(s) | Athapol Noornhorm; |
| Scholarship Donor(s) | Swedish International Development Cooperation Agency (Sida); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 2000 |