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| Authors: | C. Thommohaway, A. Uthairatanakij, P. Jitareerat |
| Keywords: | fresh-cut guava, sucrose fatty acid ester, quality, shelf life |
Abstract:
The effects of sucrose fatty acid ester coating on the quality of fresh-cut guava (Psidium guajava) were studied.
Whole guava ‘Klom-Sali’ were cut into 8 sections and coated with sucrose fatty acid ester at the concentrations of 0 (control), 0.5, 1.0 and 2.0% (v/v). The treated fresh-cut sections were then packed in foam trays wrapped with PVC film, and stored at 4°C for 7 days.
The results showed that sucrose fatty acid ester coating at 2.0% could delay weight loss, change of peel color, increases in reducing sugars and total soluble solids over 7 days.
The coating also maintained ascorbic acid and dehydroascorbic acid in the initial shelf life in comparison with non-treated fresh-cut sections.
Use of sucrose fatty acid ester affected CO2 accumulation in the guava sections to levels higher than control sections but it was not enough to generate off-flavor.
However, there were no significant effects on firmness, total acidity, a value and respiration rates of the fresh-cut guava sections among all treatments throughout the shelf life test.
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