Changes in freshness of shrimp (Penaeus semisulcatus) during storage at various temperatures | |
| Author | Nguyen Le Ha |
| Call Number | AIT Thesis no. AE-97-14 |
| Subject(s) | Food--Storage Shrimps |
| 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 | The physical, chemical and sens01y changes were determined in shrimp Penaeus semisulcatus stored at o0 c, 10°c, 20°c, and 30°C in order to estimate the effect of temperature and time on quality indices and determine their inter-relationships. It was found, that temperature was the most impoltant factor influencing the rate of spoilage process. The models for predicting its effect in conjunction with storage time on shrimp freshness indices was obtained. Total volatile nitrogen bases TVB is recommended to apply for shrimp quality evaluation, firmness, conductivity and pH could be used indirectly. The firmness in term of rupture force was found useful for detecting unacceptable shrimp texture. The conductivity and pH of shrimp could be used in the models for estimating TVB and sensory score of product. The development of these empirical models provided an alternative approach for evaluating the freshness of shrimp with reasonable accuracy in terms of the conductivity and pH measurements. These techniques could prove to be simple, rapid and reliable means for routine quality evaluation in processing factories. |
| Year | 1997 |
| 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 | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Jindal, V. K. ; |
| Examination Committee(s) | Athapol Noomhorm ;Vincent, J. C.; |
| Scholarship Donor(s) | Swedish International Development and Cooperation Agency (Sida); |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1997 |