Chemical Composition and Biological Activities of Extracts from Pomelo Peel By-Products under Enzyme and Ultrasound-Assisted Extractions

Table 2

DPPH scavenging capacity (%) of extracts from pomelo peels¹.

Extraction methods	Da Xanh	Nam Roi	Tan Trieu
UAE	23.6 ± 1.0^e	13.7 ± 0.7^g	34.8 ± 1.1^bc
EAE	28.6 ± 1.1^d	23.2 ± 0.8^e	42.5 ± 1.0^a
U-EAE	25.8 ± 0.7^e	17.1 ± 0.6^f	36.9 ± 0.6^b
E-UAE	32.3 ± 0.5^c	24.0 ± 0.7^e	43.3 ± 1.6^a

UAE, ultrasound-assisted extraction method; EAE, enzyme-assisted extraction method; U-EAE, ultrasound and enzyme-assisted extraction method; E-UAE, enzyme and ultrasound-assisted extraction method. ¹Data (mean ± standard deviation) followed by the same superscript letters in the same column are not significantly different ().