| Author | Nirat Tiasuwan |
| Call Number | AIT Thesis no. AE-87-30 |
| Subject(s) | Mango
Fruit--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 | Controlled atmosphere <CA> storage of mature green mangoes
of 'Rad' variety, to prolong the storage life was studied. A
simple controlled atmospheric chamber was constructed by using
polyethylene film supported by iron bar framework. The structure
was mad e gas tight by water sealing at the floor. Originally 9
treatments were studied with combination of 4%, 6%, 8% C02 and
4%, 6%, 8% 02. The fruits used had impact injury, were nonuniform
in maturity. Due to the difficulty .in controlling 9 CA chambers,
the treatments were reduced to five. The five treatments selected
were 4%C02 - 4%02; 6%C02 - 4%02; 4%C02 - 6%02; 6%C02 - 6%02; and 8%C02 -
6%02 . All treatments were kept at 13 °c, in a refrigerated room
together with untreated fruits <control). The fruits were sampled
at 5 day intervals. Some fruits were analyzed immediately while
others were ripened for 3 days by using CaC2, for subsequently
analysis. The following attributes were evaluate d : weight loss,
peel and flesh colour, pulp firmness, total soluble solids, pH,
titratable acidity, and amount of decay. Sensory evaluation was
conducted at the end of the experiment.
Ripening of 'Rad' mangoes was delayed when stored under
controlled atmosphere. CA - stored fruits were kept 25 days with an
appearance of 50% yellow and could b e store d further at 13 °c for
7 more days, as compared to untreated fruits which showed nearly
full ripeness after 20 days of storage .
Incidence of pathogenic decay was retarded in fruits stored
under 6% and 8% C02. The fruits however showed signs of C02
injury <internal browning and off- flavour> at this concentration
when stored for 20 days. Fruits stored under 4%C0 2- 6%02 were
highly accepted by most panelists when sensory evaluation was
conducted after 25 days storage, followed by 4%C02 - 4%0 2-stored
fruits. There were no significant differences in quality
attributes in CA - stored fruits. |
| Year | 1987 |
| Type | Thesis |
| School | School of Environment, Resources, and Development |
| 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) | Athapol Noomhorm; |
| Examination Committee(s) | Jindal, Vinod Kumar ;Illangantileke, Sarath G. ;Suraphong Kosiyachinda; |
| Scholarship Donor(s) | Government of Federal Republic of Germany; |
| Degree | Thesis (M.Sc.) - Asian Institute of Technology, 1987 |
