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Bioactive polyphenols in leaves, stems, and berries of Saskatoon (Amelanchier alnifolia Nutt.) cultivars.
J Agric Food Chem. 2012 Feb 01; 60(4):1020-7.JA

Abstract

The Saskatoon berry is currently cultivated in many parts of the world for its suitability for various food products and due to its high content of nutrients and polyphenols. To determine the phytochemical profile of a Saskatoon plant, polyphenols from leaves, stems, and berries were screened from four cultivars grown in Finland using HPLC-DAD and HPLC-ESI/MS. The phenolic composition and concentrations varied among plant parts and cultivars. The main berry components were cyanidin-based anthocyanins (63% of the phenols), quercetin-derived flavonol glycosides, and hydroxycinnamic acids. The total anthocyanin content varied between 258.7 and 517.9 mg/100 fresh weight among cultivars. Protocatechuic acid was found for the first time in Saskatoon berries. The leaves consisted of quercetin- and kaempferol-derived glycosides (41% of the phenols), hydroxycinnamic acids (36%), catechins, and some neolignans. Quercetin 3-galactoside and 3-glucoside, (-)-epicatechin, and chlorogenic acid were the main phenolics in the leaves of all cultivars. The stem components were flavanone and flavonol glycosides (55% of the phenols), catechins (38%), and hydroxybenzoic acids. Concentrations of the main compound, eriodictyol 7-glucoside, varied among cultivars from 3.3 to 6.5 mg/g of stem dry weight. Very high proanthocyanidin contents were found in stems and leaves (10-14% of dry biomass), whereas berries contained a low amount of proanthocyanidins (3% of dry biomass). The findings reveal that leaves and stems of Saskatoon cultivars possess high amounts of various phenolic compounds that may offer new functional raw materials for a wide range of food and health products.

Authors+Show Affiliations

Department of Biology, Natural Product Research Laboratories, Joensuu, University of Eastern Finland, Joensuu, Finland.No affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

22220589

Citation

Lavola, Anu, et al. "Bioactive Polyphenols in Leaves, Stems, and Berries of Saskatoon (Amelanchier Alnifolia Nutt.) Cultivars." Journal of Agricultural and Food Chemistry, vol. 60, no. 4, 2012, pp. 1020-7.
Lavola A, Karjalainen R, Julkunen-Tiitto R. Bioactive polyphenols in leaves, stems, and berries of Saskatoon (Amelanchier alnifolia Nutt.) cultivars. J Agric Food Chem. 2012;60(4):1020-7.
Lavola, A., Karjalainen, R., & Julkunen-Tiitto, R. (2012). Bioactive polyphenols in leaves, stems, and berries of Saskatoon (Amelanchier alnifolia Nutt.) cultivars. Journal of Agricultural and Food Chemistry, 60(4), 1020-7. https://doi.org/10.1021/jf204056s
Lavola A, Karjalainen R, Julkunen-Tiitto R. Bioactive Polyphenols in Leaves, Stems, and Berries of Saskatoon (Amelanchier Alnifolia Nutt.) Cultivars. J Agric Food Chem. 2012 Feb 1;60(4):1020-7. PubMed PMID: 22220589.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bioactive polyphenols in leaves, stems, and berries of Saskatoon (Amelanchier alnifolia Nutt.) cultivars. AU - Lavola,Anu, AU - Karjalainen,Reijo, AU - Julkunen-Tiitto,Riitta, Y1 - 2012/01/23/ PY - 2012/1/7/entrez PY - 2012/1/10/pubmed PY - 2012/4/20/medline SP - 1020 EP - 7 JF - Journal of agricultural and food chemistry JO - J. Agric. Food Chem. VL - 60 IS - 4 N2 - The Saskatoon berry is currently cultivated in many parts of the world for its suitability for various food products and due to its high content of nutrients and polyphenols. To determine the phytochemical profile of a Saskatoon plant, polyphenols from leaves, stems, and berries were screened from four cultivars grown in Finland using HPLC-DAD and HPLC-ESI/MS. The phenolic composition and concentrations varied among plant parts and cultivars. The main berry components were cyanidin-based anthocyanins (63% of the phenols), quercetin-derived flavonol glycosides, and hydroxycinnamic acids. The total anthocyanin content varied between 258.7 and 517.9 mg/100 fresh weight among cultivars. Protocatechuic acid was found for the first time in Saskatoon berries. The leaves consisted of quercetin- and kaempferol-derived glycosides (41% of the phenols), hydroxycinnamic acids (36%), catechins, and some neolignans. Quercetin 3-galactoside and 3-glucoside, (-)-epicatechin, and chlorogenic acid were the main phenolics in the leaves of all cultivars. The stem components were flavanone and flavonol glycosides (55% of the phenols), catechins (38%), and hydroxybenzoic acids. Concentrations of the main compound, eriodictyol 7-glucoside, varied among cultivars from 3.3 to 6.5 mg/g of stem dry weight. Very high proanthocyanidin contents were found in stems and leaves (10-14% of dry biomass), whereas berries contained a low amount of proanthocyanidins (3% of dry biomass). The findings reveal that leaves and stems of Saskatoon cultivars possess high amounts of various phenolic compounds that may offer new functional raw materials for a wide range of food and health products. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/22220589/Bioactive_polyphenols_in_leaves_stems_and_berries_of_Saskatoon__Amelanchier_alnifolia_Nutt___cultivars_ L2 - https://dx.doi.org/10.1021/jf204056s DB - PRIME DP - Unbound Medicine ER -