Table 5. DPPH radical scavenging ability of aronia stored at different storage temperatures

(%)

Storage temp (℃) Storage time(week) Concentration (μg aronia extract/mL)

12.5 25 50 100

Fresh (initial) 25.6±2.2^f^A 37.9±3.6^f^A 58.9±5.1^f^A 65.1±5.6^f^A

4 4 18.1±1.4^c^A 29.8±2.9^e^B 44.3±4.2^d^C 54.9±4.5^d^D

8 12.2±1.5^b^c^A 26.3±2.5^d^B 30.9±3.4^c^C 43.9±4.3^c^D

12 8.1±0.6^b^A 15.1±1.2^b^B 20.4±2.9^b^C 32.9±3.2^b^D

16 9.5±0.3^b^A 12.9±1.2^a^B 15.1±1.4^a^B 29.4±1.6^b^C

20 5.3±0.5^a^A 9.7±1.4^a^A^B 12.9±1.7^a^B 20.1±1.2^a^C

-20 4 22.9±2.8^e^A 35.7±2.7^e^B 54.8±4.5^e^C 62.8±5.5^e^D

8 20.2±1.4^d^A 33.2±2.3^d^B 49.9±3.7^d^C 62.1±4.3^e^D

12 19.3±1.2^c^A 30.5±2.3^c^B 47.9±2.4^d^C 61.4±1.4^e^D

16 15.2±3.5^c^A 29.9±1.7^c^B 37.2±2.9^c^d^C 58.2±3.3^d^e^D

20 12.2±3.5^b^c^A 19.7±1.4^b^A 32.9±2.7^c^B 49.1±2.2^d^C

-80 4 23.3±2.6^e^A 35.8±1.9^e^B 56.2±4.1^e^C 62.8±1.6^e^D

8 21.1±2.7^d^A 33.5±2.5^d^B 52.9±3.4^d^C 60.7±4.9^e^D

12 20.1±2.9^d^A 31.3±1.2^c^B 51.4±2.8^d^C 61.5±4.4^e^D

16 18.1±2.3^c^A 29.0±2.3^c^B 50.7±5.1^d^C 59.1±3.4^d^e^D

20 16.3±1.2^c^A 30.7±2.2^c^B 47.7±3.5^d^C 58.0±3.4^d^e^D

Data were the mean±SD of triplicate experiment.
^a^-^fMeans with different superscripts in the same column are significantly different at p<0.05.
^A^-^DMeans with different superscripts in the same row are significantly different at p<0.05.

Storage temp (℃)	Storage time(week)	Concentration (μg aronia extract/mL)
Storage temp (℃)	Storage time(week)	12.5	25	50	100
Fresh (initial)		25.6±2.2^f^A	37.9±3.6^f^A	58.9±5.1^f^A	65.1±5.6^f^A
4	4	18.1±1.4^c^A	29.8±2.9^e^B	44.3±4.2^d^C	54.9±4.5^d^D
	8	12.2±1.5^b^c^A	26.3±2.5^d^B	30.9±3.4^c^C	43.9±4.3^c^D
	12	8.1±0.6^b^A	15.1±1.2^b^B	20.4±2.9^b^C	32.9±3.2^b^D
	16	9.5±0.3^b^A	12.9±1.2^a^B	15.1±1.4^a^B	29.4±1.6^b^C
	20	5.3±0.5^a^A	9.7±1.4^a^A^B	12.9±1.7^a^B	20.1±1.2^a^C
-20	4	22.9±2.8^e^A	35.7±2.7^e^B	54.8±4.5^e^C	62.8±5.5^e^D
	8	20.2±1.4^d^A	33.2±2.3^d^B	49.9±3.7^d^C	62.1±4.3^e^D
	12	19.3±1.2^c^A	30.5±2.3^c^B	47.9±2.4^d^C	61.4±1.4^e^D
	16	15.2±3.5^c^A	29.9±1.7^c^B	37.2±2.9^c^d^C	58.2±3.3^d^e^D
	20	12.2±3.5^b^c^A	19.7±1.4^b^A	32.9±2.7^c^B	49.1±2.2^d^C
-80	4	23.3±2.6^e^A	35.8±1.9^e^B	56.2±4.1^e^C	62.8±1.6^e^D
	8	21.1±2.7^d^A	33.5±2.5^d^B	52.9±3.4^d^C	60.7±4.9^e^D
	12	20.1±2.9^d^A	31.3±1.2^c^B	51.4±2.8^d^C	61.5±4.4^e^D
	16	18.1±2.3^c^A	29.0±2.3^c^B	50.7±5.1^d^C	59.1±3.4^d^e^D
	20	16.3±1.2^c^A	30.7±2.2^c^B	47.7±3.5^d^C	58.0±3.4^d^e^D