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Table 3 Results of evaluation of weight loss, TSS content and pH of nectarines after 10 days of storage at RT and 21 days at 4 °C

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

Nectarines

Treatments

Weight loss (%)

TSS (°Brix)

pH

Before treatment

 

14.6 ± 0.4

3.93 ± 0.01

After storage at RT

 Ctrl -

53 ± 2.3a

16.9 ± 0.1a

4.57 ± 0.01e

 Solvent

53 ± 3.1a

17.1 ± 0.1a

5.00 ± 0.01a

 Comm CS 0.5%

51 ± 3.6a

16.1 ± 0.1bc

4.69 ± 0.01c

 Comm CS 1%

54 ± 3.3a

15.8 ± 0.2c

4.78 ± 0.01b

 Unbl CS 0.5%

54 ± 1.8a

15.7 ± 0.2c

4.64 ± 0.01d

 Unbl CS 1%

58 ± 4.4a

15.9 ± 0.1bc

4.22 ± 0.01h

 Bl CS 0.5%

52 ± 3.4a

15.7 ± 0.2c

4.53 ± 0.01f

 Bl CS 1%

50 ± 3.7a

16.3 ± 0.1b

4.47 ± 0.01g

After storage at 4 °C

 Ctrl -

50 ± 1.5a

24.5 ± 0.8a

4.34 ± 0.01a

 Solvent

46 ± 3.8a

23.7 ± 1.3a

4.33 ± 0.01a

 Comm CS 0.5%

52 ± 2.6a

26.5 ± 2.1a

4.19 ± 0.01b

 Comm CS 1%

52 ± 3.1a

24.1 ± 1.9a

4.21 ± 0.02b

 Unbl CS 0.5%

50 ± 3.8a

26.9 ± 2.0a

4.09 ± 0.01c

 Unbl CS 1%

51 ± 4.5a

23.7 ± 1.3a

4.03 ± 0.02d

 Bl CS 0.5%

48 ± 3.7a

22.9 ± 0.7a

4.02 ± 0.02d

 Bl CS 1%

49 ± 3.1a

23.7 ± 1.3a

4.09 ± 0.02c

  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,e,f,g,h) 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