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Table 1 The carotenoids concentration (μg/kg ) in grape skin extract

From: Carotenoids, total polyphenols and antioxidant activity of grapes (Vitis vinifera) cultivated in organic and conventional systems

Variety

Color

Organic

Conventional

ß-carotene

Lutein

ß-carotene

Lutein

(μg/kg sample)

(μg/kg sample)

(μg/kg sample)

(μg/kg sample)

Aromat de Iaşi

white

304.0 ± 49de

512.0 ± 69g

232.0 ± 46e

470.9 ± 46e

Traminer roz

white

331.9 ± 23c

551.0 ± 35f

356.8 ± 34bc

598.0 ± 53d

Riesling italian

white

365.2 ± 34b

632.0 ± 56e

264.5 ± 47d

709.0 ± 87b

Feteasca regală

white

328.3 ± 31cd

855.0 ± 66a

344.3 ± 32bc

825.0 ± 39a

Muscat Ottonel

white

504.9 ± 43a

723.0 ± 56c

593.2 ± 35a

602.0 ± 87cd

Timpuriu de Cluj

white

290.4 ± 14ef

799.0 ± 23b

334.1 ± 12c

803.0 ± 52a

Napoca

blue-black

369.0 ± 26b

701.0 ± 34cd

229.6 ± 18e

689.0 ± 19b

Chasselas doré

white

273.5 ± 23f

552.0 ± 56f

363.6 ± 45b

589.0 ± 21d

Muscat Hamburg

blue-black

302.1 ± 56e

685.0 ± 67d

265.0 ±32d

662.0 ± 12bc

LSD 0.05

 

25.77

31.27

22.86

51.57

  1. Values are mean ± SD, n = 3; in each column, mean values with different letters are significantly different at P < 0.05.