Youryon, Pannipa
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Preferred name
Youryon, Pannipa
Alternative Name
Youryon, P.
Main Affiliation
Email
pannipa.yo@kmitl.ac.th
4 results
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Item type:Publication, Duration after harvesting and CaCl2 peduncle infiltration time affecting internal browning during storage of 'Sawi' pineapple fruit(2018-10-05); Wongs‐Aree, C.'Sawi' pineapple, a member of the Queen group originating in the south of Thailand, is susceptible to internal browning (IB) when stored at low temperature. The previous studies in 'Trad Srithong' pineapple, another cultivar in the group, suggest that postharvest applications of CaCl<inf>2</inf> were effective to reduce the IB symptoms. This research aimed to study the efficiency of CaCl<inf>2</inf> treatments to reduce IB in 'Sawi' pineapple by varying duration uses and period after harvest. Fruit, after harvest at 3, 6, 12, 24 or 48 h, were infiltrated with 2% CaCl<inf>2</inf> through the peduncle for 0, 3, 6, 12, 24 or 48 h at 13°C. After treatment, fruit were stored at 13°C, 90-95% RH for 14 days and then transferred to 20°C for 3 days. Fruit harvested for 48 h and treated with 2% CaCl<inf>2</inf> for 24 or 48 h was absent in IB symptoms. Duration after fruit harvesting from 6 h especially at 48 h and duration of CaCl<inf>2</inf> treatment above 24 h showed a huge impact in reducing IB symptoms. The longer immersion times elevated the higher content of calcium in the core whereas the longer duration after harvest increased solution uptake rate in the fruit. As a result, this opposes the hypothesis that the fastest time of CaCl<inf>2</inf> application to pineapple fruit after harvest is the most effective in reducing IB. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Physicochemical factors related to 'Monthong' durian fruit maturity(2018-08-30); ; Heterogeneous maturation of durian fruit on the market is a main problem. The aim of this work was to investigate certain factors related to the maturity of 'Monthong' durian fruit. The durian fruit at immature, onset of maturation, onset of ripening, ripe and full ripe stages were harvested. Non-destructive factors such as specific gravity and total soluble solids (TSS) content of peduncle and destructive factors such as cut-fruit visual appearance, pulp dry weight, colour, TSS content and carotenoids content were monitored. Both specific gravity and TSS content of peduncle were increased until the onset of ripening stage and then remained constant during ripening. The visual appearance showed the increase in pulp yellowness and space between pulp and peel which positively changed with the maturation increase. The pulp dry weight and b* value were increased whilst L* value was decreased as the ripening increased. The pulp TSS concentration was dramatically increased until full ripe and then remained constant. Carotenoids content of the pulp was also obviously increased from immature to the onset of ripening stage and it then remained constant. In conclusion, the decrease in specific gravity and increase in peduncle TSS concentration could be non-destructive factors indicating durian fruit ripening. - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Effects of preharvest salicylic acid or oxalic acid on quality of ‘Queen’ pineapple fruit harvested at different month stored at room temperature(2019-01-01); - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Response of internal browning in pineapple fruit vacuum infiltrated with solutions of calcium chloride or strontium chloride(2012-02-28);