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Varietal differences among the polyphenol profiles of seven table grape cultivars studied by LC-DAD-MS-MS.
J Agric Food Chem. 2002 Sep 25; 50(20):5691-6.JA

Abstract

Polyphenols present in red table grape varieties Red Globe, Flame Seedless, Crimson Seedless, and Napoleon, and the white varieties Superior Seedless, Dominga, and Moscatel Italica were analyzed by HPLC-DAD-MS. The anthocyanins peonidin 3-glucoside, cyanidin 3-glucoside (and their corresponding p-coumaroyl derivatives), malvidin 3-glucoside, petunidin 3-glucoside, and delphinidin 3-glucoside were found. In addition, caffeoyltartaric acid, p-coumaroyltartaric acid, and the flavonols quercetin 3-glucuronide, quercetin 3-rutinoside, quercetin 3-glucoside, kaempferol 3-galactoside, kaempferol 3-glucoside, and isorhamnetin 3-glucoside were detected. Flavan-3-ols were also detected, and were identified as gallocatechin, procyanidin B1, procyanidin B2, procyanidin B4, procyanidin C1, catechin, and epigallocatechin. These phenolics were present only in the skin, as the flesh of these grape cultivars was almost devoid of these compounds. Anthocyanins were the main phenolics in red grapes ranging from 69 (Crimson Seedless) to 151 (Flame Seedless) mg/kg fresh weight of grapes, whereas flavan-3-ols were the most abundant phenolics in the white varieties ranging from 52 (Dominga) to 81 (Moscatel Italica) mg/kg fresh weight of grapes. Total phenolics ranged from 115 (Dominga) to 361 (Flame Seedless) mg/kg fresh weight of grapes. This means that a serving of unpeeled table grapes (200 g) could provide up to 72 mg of total phenolics (Flame Seedless). These results indicate that the intake of unpeeled table grapes should be recommended in dietary habits as a potential source of antioxidant and anticarcinogenic phenolic compounds.

Authors+Show Affiliations

Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS-CSIC, P.O. Box 4195, Murcia 30080, Spain.No affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12236700

Citation

Cantos, Emma, et al. "Varietal Differences Among the Polyphenol Profiles of Seven Table Grape Cultivars Studied By LC-DAD-MS-MS." Journal of Agricultural and Food Chemistry, vol. 50, no. 20, 2002, pp. 5691-6.
Cantos E, Espín JC, Tomás-Barberán FA. Varietal differences among the polyphenol profiles of seven table grape cultivars studied by LC-DAD-MS-MS. J Agric Food Chem. 2002;50(20):5691-6.
Cantos, E., Espín, J. C., & Tomás-Barberán, F. A. (2002). Varietal differences among the polyphenol profiles of seven table grape cultivars studied by LC-DAD-MS-MS. Journal of Agricultural and Food Chemistry, 50(20), 5691-6.
Cantos E, Espín JC, Tomás-Barberán FA. Varietal Differences Among the Polyphenol Profiles of Seven Table Grape Cultivars Studied By LC-DAD-MS-MS. J Agric Food Chem. 2002 Sep 25;50(20):5691-6. PubMed PMID: 12236700.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Varietal differences among the polyphenol profiles of seven table grape cultivars studied by LC-DAD-MS-MS. AU - Cantos,Emma, AU - Espín,Juan Carlos, AU - Tomás-Barberán,Francisco A, PY - 2002/9/19/pubmed PY - 2002/11/26/medline PY - 2002/9/19/entrez SP - 5691 EP - 6 JF - Journal of agricultural and food chemistry JO - J. Agric. Food Chem. VL - 50 IS - 20 N2 - Polyphenols present in red table grape varieties Red Globe, Flame Seedless, Crimson Seedless, and Napoleon, and the white varieties Superior Seedless, Dominga, and Moscatel Italica were analyzed by HPLC-DAD-MS. The anthocyanins peonidin 3-glucoside, cyanidin 3-glucoside (and their corresponding p-coumaroyl derivatives), malvidin 3-glucoside, petunidin 3-glucoside, and delphinidin 3-glucoside were found. In addition, caffeoyltartaric acid, p-coumaroyltartaric acid, and the flavonols quercetin 3-glucuronide, quercetin 3-rutinoside, quercetin 3-glucoside, kaempferol 3-galactoside, kaempferol 3-glucoside, and isorhamnetin 3-glucoside were detected. Flavan-3-ols were also detected, and were identified as gallocatechin, procyanidin B1, procyanidin B2, procyanidin B4, procyanidin C1, catechin, and epigallocatechin. These phenolics were present only in the skin, as the flesh of these grape cultivars was almost devoid of these compounds. Anthocyanins were the main phenolics in red grapes ranging from 69 (Crimson Seedless) to 151 (Flame Seedless) mg/kg fresh weight of grapes, whereas flavan-3-ols were the most abundant phenolics in the white varieties ranging from 52 (Dominga) to 81 (Moscatel Italica) mg/kg fresh weight of grapes. Total phenolics ranged from 115 (Dominga) to 361 (Flame Seedless) mg/kg fresh weight of grapes. This means that a serving of unpeeled table grapes (200 g) could provide up to 72 mg of total phenolics (Flame Seedless). These results indicate that the intake of unpeeled table grapes should be recommended in dietary habits as a potential source of antioxidant and anticarcinogenic phenolic compounds. SN - 0021-8561 UR - https://www.unboundmedicine.com/medline/citation/12236700/Varietal_differences_among_the_polyphenol_profiles_of_seven_table_grape_cultivars_studied_by_LC_DAD_MS_MS_ L2 - https://dx.doi.org/10.1021/jf0204102 DB - PRIME DP - Unbound Medicine ER -