Research Article

Fruit By-Product Processing and Bioactive Compounds

Table 3

Analysis of variance (ANOVA) of the total phenolic content (TPC), FRAP, total flavonoid content (TFC), and IC50 of fruit by-products during blanching, drying, fresh, and freezing.

Source of variationTPC (mg/100g)
DFSum of squaresMean squareF ratioSum of squaresMean squareF ratio

Model5Blanching544028921088057817662.06Drying522296061044592119353.98
Error63696616.04253238539.73
C. total115440658952232844
Model5Freezing566441191132882488131.41Fresh6444773412889547107250.9
Error6771128.54468721120.1812
C. total115664489064448455

FRAP (0.1 mg/100 ml)
Model5Blanching30167.0216033.46786.532Drying17516.3633503.2710426.87
Error65.3340.892.0160.34
C. total1130172.35517518.379
Model5Freezing43594.6668718.9365797.14Fresh51424.72510284.9139105.7
Error60.7950.130.4440.073936
C. total1143595.46151425.168

TFC (mg/100 g)
Model5Blanching355163.5671032.728558.26Drying1063844.1212769143843.7
Error614.922.58.91.479167
C. total11355178.491063852.9
Model5Freezing351479.1770295.812854.1Fresh385470.9677094.219001.39
Error632.815.524.344.1
C. total11351511.98385495.31

IC50 (%)
Model5Blanching1853.01370.6021822.633Drying2252.3367450.4671001.039
Error61.220.2032.70.45
C. total111854.232255.0367
Model5Freezing6112.49671222.53526.44Fresh2685.1075537.0221682.574
Error62.080.351.9150.319
C. total116114.57672687.0225

Significance at . Prob > F = 0.0001 for all treatments.