| Author | Arampath, Palitha Chandraprema |
| Call Number | AIT Thesis no. AE-95-16 |
| Subject(s) | Concentrated fruit juices
|
| Note | A thesis submitted in partial fulfilment of the requirement for
the degree of Master of Science, School of Environment, Resources, and Development |
| Publisher | Asian Institute of Technology |
| Abstract | Production of clarified, concentrated mango juice with enzyme
liquefaction was studied using the ripen mango variety "Kaew",
treated with 12g of Calcium carbide (or 1200ppm acetylene gas
generated) per 4 kg of mature green fruits for 6-7 days.
Enzyme liquefaction with 150ppm Pectinex Ultra SP-L and
Cellulase enzyme at 40°c for 2 hours of holding time were found as
the most suitable conditions for mango puree variety "Kaew".
Under the laboratory scale, clarified juice separated at
5000r~m from the treated puree with the above conditions was 46.77
% {40 C) and 47.6 % (45°c) and the results were not significantly
different at 5 % level DNMRT.
From the pilot scale processing 40. 8 % and 37 % clarified
single strength ;21°Brix~ juice with acceptable clarification was
yielded after 3r and 4t run centrifugal separation at 8500 rpm
respectively.
Clarified single strength juice was concentrated using a
falling film vacuum evaporator and concentrated juice yielded with
2a0Brix without a noticeable colour change.
Overall acceptability of mango nectar with 2 o % and 50 %
single strength and concentrated juice were scored as like slightly
except the nectar from 4th run single strength over the control
which scored as neither like nor dislike. The mean scores of the
each product was significantly different (5% level, LSD) over the
control, which contained 20 % of strained mango puree.
The clarified, concentrated juice production is a promising
technique in order to absorb the surplus of mango variety "Kaew"
and to prevent the post-harvest losses during the short production
season March to June in Thailand. |
| Year | 1995 |
| 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) | Vincent, J. C.
|
| Examination Committee(s) | Jindal, V. K.;Athapol Noomhorm |
| Scholarship Donor(s) | The Government of Denmark
|
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1995 |