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Table 4 Results of evaluation of weight loss, TSS content and pH of peaches after 8 days of storage at RT and 16 days at 4 °C

From: Usage of chitosan from Hermetia illucens as a preservative for fresh Prunus species fruits: a preliminary analysis

Peaches

Treatments

Weight loss (%)

TSS (°Brix)

pH

Before treatment

 

11.3 ± 1.4

4.25 ± 0.08

After storage at RT

 Ctrl -

60 ± 3.1a

27.2 ± 0.3a

4.66 ± 0.40a

 Solvent

53 ± 2.9ab

17.8 ± 1.9c

4.79 ± 0.07a

 Comm CS 0.5%

55 ± 5.9ab

20.5 ± 2.7bc

4.42 ± 0.00a

 Comm CS 1%

55 ± 1.4ab

21.2 ± 1.1bc

4.91 ± 0.00a

 Unbl CS 0.5%

47 ± 3.7bc

17.3 ± 1.7c

4.67 ± 0.02a

 Unbl CS 1%

41 ± 4.9c

17.8 ± 0.9c

4.57 ± 0.00a

 Bl CS 0.5%

40 ± 3.6c

19.1 ± 0.6bc

4.51 ± 0.00a

 Bl CS 1%

46 ± 1.2bc

22.9 ± 0.1b

4.39 ± 0.26a

After storage at 4 °C

 Ctrl -

68 ± 2.4a

17.2 ± 2.5ab

4.43 ± 0.02c

 Solvent

60 ± 4.2b

20.6 ± 1.2a

5.15 ± 0.03a

 Comm CS 0.5%

59 ± 1.9b

20.8 ± 0.7a

4.85 ± 0.01ab

 Comm CS 1%

62 ± 1.8ab

19.7 ± 0.6ab

4.65 ± 0.12bc

 Unbl CS 0.5%

43 ± 2.1c

16.4 ± 1.5b

4.48 ± 0.04c

 Unbl CS 1%

45 ± 2.2c

20.8 ± 0.6a

4.49 ± 0.01c

 Bl CS 0.5%

40 ± 1.0c

19 ± 0.5ab

4.47 ± 0.02c

 Bl CS 1%

41 ± 1.1c

18.2 ± 1.2ab

4.51 ± 0.12c

  1. Treatments: untreated fruits (Ctrl -), solvent only, coating with pupal exuviae unbleached (Unbl CS), bleached (Bl CS) and commercial (Comm CS) chitosan. Means followed by different letters (a,b,c) in the column, for each storage condition, are significantly different (p < 0.05) by one-way ANOVA and Bonferroni post-hoc test. Each trial contained three triplicates of apricots per each treatment