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Table 2 Results of evaluation of weight loss, TSS content and pH of apricots after 14 days of storage at RT and 26 days at 4 °C

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

Apricots

Treatments

Weight loss (%)

TSS (°Brix)

pH

Before treatment

 

2.6 ± 0.2

2.81 ± 0.01

After storage at RT

 Ctrl -

54 ± 3.1a

4.1 ± 0.1a

3.26 ± 0.02a

 Solvent

55 ± 3.1a

3.6 ± 0.3ab

3.20 ± 0.01b

 Comm CS 0.5%

53 ± 3.4a

3.9 ± 0.1ab

3.17 ± 0.01b

 Comm CS 1%

53 ± 3.3a

3.6 ± 0.2ab

3.15 ± 0.02bcd

 Unbl CS 0.5%

54 ± 2.9a

3.9 ± 0.1ab

3.16 ± 0.02bc

 Unbl CS 1%

53 ± 4.0a

3.6 ± 0.4ab

3.11 ± 0.02cd

 Bl CS 0.5%

50 ± 3.1a

3.2 ± 0.2b

3.10 ± 0.01d

 Bl CS 1%

50 ± 2.3a

3.8 ± 0.3ab

3.09 ± 0.02d

After storage at 4 °C

 Ctrl -

64 ± 3.0a

5.1 ± 0.1a

3.15 ± 0.02a

 Solvent

62 ± 3.3ab

4.8 ± 0.2a

3.02 ± 0.01b

 Comm CS 0.5%

60 ± 3.3ab

5.1 ± 0.1a

2.99 ± 0.01b

 Comm CS 1%

57 ± 3.4ab

4.9 ± 0.3a

3.00 ± 0.01b

 Unbl CS 0.5%

57 ± 2.7ab

4.9 ± 0.1a

3.00 ± 0.01b

 Unbl CS 1%

57 ± 3.0ab

5.1 ± 0.3a

3.01 ± 0.02b

 Bl CS 0.5%

55 ± 1.9b

4.3 ± 0.2a

3.01 ± 0.01b

 Bl CS 1%

57 ± 2.1ab

4.7 ± 0.4a

3.00 ± 0.01b

  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,d) 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