. 2020 Jun 26;10:10410. doi: 10.1038/s41598-020-67266-1

Table 4.

Antioxidant activities of crude polysaccharide extracted using hot water (KUM-H) and ultrasonic –assisted extraction (KUM-U).

Antioxidant activities	KUM-H	KUM-U
IC₅₀ DPPH (mg/mL) ^ns	0.94 ± 0.03	1.05 ± 0.01
IC₅₀ ABTS (mg/mL) ^ns	2.93 ± 0.01	2.82 ± 0.03
IC₅₀ Superoxide radical (mg/mL)	1.5 ± 0.1^b	4.8 ± 0.4^a
IC₅₀ Hydroxyl radical (mg/mL)	1.04 ± 0.01^b	1.47 ± 0.01^a
IC₅₀ Metal chelating (mg/mL)	1.25 ± 0.04^b	3.7 ± 0.4^a
Reducing power (mg/mL)	4.6 ± 0.1^b	6.4 ± 0.3^a
FRAP value (µmol Fe²⁺/g)^ns	199 ± 5	200 ± 5

Data show mean ± standard deviation (n = 3). The different letters in the same row mean significant difference (p ≤ 0.05). ^nsmeans non-significant difference (p > 0.05).