• Home
  • Search Results
  • Characterization of the polyphenol composition of 20 cultivars of cider, processing, and dessert apples (Malus × domestica Borkh.) grown in Virginia.

Characterization of the polyphenol composition of 20 cultivars of cider, processing, and dessert apples (Malus × domestica Borkh.) grown in Virginia.

Journal of agricultural and food chemistry (2014-09-18)
Katherine A Thompson-Witrick, Katheryn M Goodrich, Andrew P Neilson, E Kenneth Hurley, Gregory M Peck, Amanda C Stewart
ABSTRACT

Polyphenols and maturity parameters were determined in 20 apple cultivars with potential for hard cider production grown in Virginia, U.S.A. Concentrations of five classes of polyphenols were significantly different across cultivar for both peel and flesh. Total polyphenol concentration ranged from 0.9 μg/g wwb in flesh of Newtown Pippin to 453 μg/g wwb in peel of Red Delicious. Harrison, Granny Smith, Rome, Winesap, and Black Twig cultivars contained the highest concentration of total flavan-3-ols in flesh, indicating potential to impart desired astringency and bitterness to cider under processing conditions where extraction of polyphenols from peel is minimal. These results can inform selection of fruit juice, extracts, and byproducts for investigations of bioactivity and bioavailability of polyphenols, and provide baseline data for horticultural and processing research supporting the growing hard cider industry in Virginia. Based on these data, cultivars Harrison, Granny Smith, Rome, Winesap, and Black Twig show high potential for cider production in Virginia.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
L-Ascorbic acid, 99%
Sigma-Aldrich
Quercetin, ≥95% (HPLC), solid
Sigma-Aldrich
L-Ascorbic acid, powder, suitable for cell culture, γ-irradiated
Supelco
Ascorbic Acid, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
L-Ascorbic acid, BioXtra, ≥99.0%, crystalline
Sigma-Aldrich
L-Ascorbic acid, suitable for cell culture, suitable for plant cell culture, ≥98%
Sigma-Aldrich
L-Ascorbic acid, ACS reagent, ≥99%
Sigma-Aldrich
(−)-Epigallocatechin gallate, ≥95%
Sigma-Aldrich
Chlorogenic acid, ≥95% (titration)
Supelco
Quercetin, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
L-Ascorbic acid, reagent grade, crystalline
Sigma-Aldrich
L-Ascorbic acid, puriss. p.a., ACS reagent, reag. ISO, Ph. Eur., 99.7-100.5% (oxidimetric)
Sigma-Aldrich
Quercetin 3-β-D-glucoside, ≥90% (HPLC)
Supelco
L-Ascorbic acid, analytical standard
USP
Ascorbic acid, United States Pharmacopeia (USP) Reference Standard
Sigma-Aldrich
(−)-Epicatechin gallate, ≥98% (HPLC), from green tea
Sigma-Aldrich
(−)-Epigallocatechin gallate, ≥80% (HPLC), from green tea
Sigma-Aldrich
Phloretin, ≥99%
Sigma-Aldrich
L-Ascorbic acid, reagent grade
Ascorbic acid, European Pharmacopoeia (EP) Reference Standard
Supelco
Epigallocatechin gallate, Pharmaceutical Secondary Standard; Certified Reference Material
Sigma-Aldrich
L-Ascorbic acid, meets USP testing specifications
USP
Quercetin, United States Pharmacopeia (USP) Reference Standard
Supelco
L-Ascorbic acid, certified reference material, TraceCERT®
Sigma-Aldrich
L-Ascorbic acid, FCC, FG
Chlorogenic acid, primary reference standard
Sigma-Aldrich
L-Ascorbic acid, puriss. p.a., ≥99.0% (RT)
Sigma-Aldrich
L-Ascorbic acid, BioUltra, ≥99.5% (RT)
Supelco
(−)-Epigallocatechin gallate, analytical standard
Supelco
Quercetin 3-glucoside, analytical standard