Total Polyphenol and Flavonoid Content and Antioxidant Capacity of Some Varieties of Persea americana Peels Consumed in Cameroon

Table 1

Total phenolic and flavonoids content of aqueous, hydroethanolic and ethanolic extracts of the different avocado varieties’ peelings.

Avocado varieties’ peelings

Lula

Nabal

Hickson

Booth 8

Semil

Booth 7

Taylor

Collinson

Anaheim

Hass

Zutano

Fuerte florid

TPC (mg GAE/g DM)

AE

806 ± 8^a

828 ± 12^a

700 ± 14^b

724 ± 12^bc

673 ± 18^b

763 ± 13^d

782 ± 11^d

751 ± 5^cd

746 ± 13^cd

802 ± 8^a

756 ± 13^d

867 ± 15^e

HE

920 ± 17^a

885 ± 12^a

742 ± 11^b

754 ± 17^bc

758 ± 8^b

801 ± 18^c

733 ± 29^b

703 ± 10^b

778 ± 10^b

813 ± 12^c

776 ± 13^b

1037 ± 15^d

EE

1430 ± 17^b

1026 ± 20^c

1115 ± 26^c

1088 ± 20^c

843 ± 28^c

1513 ± 20^d

1302 ± 22^b

887 ± 12^c

804 ± 13^c

1836 ± 20^a

1362 ± 16^b

2407 ± 21^e

TFC (mg QE/g DM)

AE

348 ± 2^a

303 ± 1^b

119 ± 1^d

265 ± 1^e

347 ± 1^a

137 ± 2^d

283 ± 3^b

223 ± 1^e

162 ± 2^d

399 ± 0.8c

298 ± 1^b

427 ± 2^c

HE

617 ± 6^c

406 ± 3^d

311 ± 6^e

470 ± 2^b

429 ± 4^d

441 ± 0,9^d

494 ± 3^b

441 ± 3^b

367 ± 2^d

678 ± 2^a

403 ± 3^b

724 ± 4^a

EE

859 ± 2^b

836 ± 3^b

740 ± 2^c

660 ± 1^d

504 ± 4^d

489 ± 7^c

527 ± 1^d

499 ± 0,8^c

535 ± 2^d

978 ± 8^a

682 ± 5^d

986 ± 6^a

mg GAE/g DM, milligram gallic acid equivalent/gram of dry matter; mg QE/g DM, milligram quercetin equivalent/gram dry matter; TPC, total polyphenol content; FC, flavonoid content; AE, aqueous extract; HE, hydroethanolic extract; EE, ethanolic extract. Any two mean ± SD values that do not carry similar superscript in a line are significantly different ().