Table 1. The contents of hesperidin and hesperetin of the hydrolyzed hesperidin by three commercial enzymes
(unit: ppm)

Enzyme Hydrolyzed hesperidin
pH 4.0 pH 5.0 pH 6.0
2 h 24 h 2 h 24 h 2 h 24 h
Hesperidin Hesperetin Hesperidin Hesperetin Hesperidin Hesperetin Hesperidin Hesperetin Hesperidin Hesperetin Hesperidin Hesperetin
Viscozyme L 5.82±0.01c1) 2.78±0.00a 4.26±0.02c 3.55±0.02a 6.06±0.03c 2.63±0.02a 3.20±0.03c 3.83±0.02a 5.67±0.01c 2.48±0.00a 4.07±0.01b 3.31±0.03b
AMG 300L 11.27±0.07a 0.45±0.00c 9.10±0.02a 1.32±0.00c 8.92±0.02b 0.59±0.00c 8.51±0.03a 1.35±0.00c 11.19±0.03a 0.38±0.02c 9.94±0.02a 0.91±0.03c
Pectinex Ultra Pulp 9.60±0.11b 1.22±0.00b 4.49±0.02b 3.18±0.01b 10.22±0.07a 1.41±0.01b 4.92±0.00b 3.64±0.01b 9.21±0.00b 1.08±0.02b 3.23±0.00c 3.67±0.03a
a-cMeans within the same column with different superscript letters are significant different by Duncan’s multiple range test at p<0.05 (n=3).