Universal Journal of Agricultural Research Vol. 11(5), pp. 810 - 821
DOI: 10.13189/ujar.2023.110506
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Factors Affecting the Occurrence of Jelly Seed Symptom on Marian Plum (Bouae burmanicar) cv. Thun Klao Fruit

P. Wattanakeeboot ^1,2, U. Chanasut ^1,2,*, P. Chaiprasart ^3
1 Graduate School, Chiang Mai University, Thailand
² Postharvest Technology Research Center, Faculty of Agriculture, Chiang Mai University, Thailand
³ Department of Agricultural Science, Naresuan University, Thailand

ABSTRACT

Marian plum or Ma-yong-chid has gained lots of attention in the export market recently. Marian plum cultivar Thun Klao is the most popular cultivar due to its large size, huge flesh and beautiful peel color. Marian plum is a short-harvested period fruit and it has a shorter storage period of 3-5 days due to wilting. The main problem occurred inside the marian plum fruit as the pulp shows jelly texture around the seed, resulting in the quality reduced accordingly and not accepted by consumers. The results showed that the shelf-life of marian plum harvested at 75, 85 and 95 days after full bloom (DAFB) were 8, 6 and 4 days, respectively when stored at 25℃, 80 %RH. The fruits harvested at 85 and 95 DAFB had the highest quality changes during storage at 25℃. Fruits rapidly lost firmness, electrolyte leakage, water soluble pectin (WSP), polygalacturonase (PG) and pectin methyl esterase (PME) activities increased. The 85 and 95 DAFB fruit had jelly seed symptom after storage at 25℃ for 4 and 2 days, respectively. The symptom also increased when the storage period extended. The intensity of jelly seed symptom was related with harvesting date (95 and 85 DAFB respectively) and storage period at 25℃. The occurrence of jelly seed symptom was related with PG activity, EL and WSP content. The cell walls of parenchyma cells collapsed and the middle lamella greatly decayed.

KEYWORDS
Cell Wall Degradation, Pectin Methyl Esterase, Polygalacturonase, Plum, Shelf Life

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] P. Wattanakeeboot , U. Chanasut , P. Chaiprasart , "Factors Affecting the Occurrence of Jelly Seed Symptom on Marian Plum (Bouae burmanicar) cv. Thun Klao Fruit," Universal Journal of Agricultural Research, Vol. 11, No. 5, pp. 810 - 821, 2023. DOI: 10.13189/ujar.2023.110506.

(b). APA Format:
P. Wattanakeeboot , U. Chanasut , P. Chaiprasart (2023). Factors Affecting the Occurrence of Jelly Seed Symptom on Marian Plum (Bouae burmanicar) cv. Thun Klao Fruit. Universal Journal of Agricultural Research, 11(5), 810 - 821. DOI: 10.13189/ujar.2023.110506.