Journal article
Effects of Production Region, Production Systems and Grape Type/Variety on Nutritional Quality Parameters of Table Grapes; Results from a UK Retail Survey
Foods, Vol.9(12), p.1874
2020
PMID: 33339243
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Source: InCites
Abstract
Grapes contain high concentrations of secondary metabolites and antioxidants that have been linked to a reduction of several chronic diseases. Here, we report results of a UK retail survey, which investigated the effect of the production region (Mediterranean vs. South Africa), grape type (white vs. red vs. black) and variety, and production system (organic vs. conventional) on antioxidant activity and concentrations of phenolic compounds in table grapes. Black grapes had ~180% total antioxidant activity (TAA), ~60% higher total phenolic content (TPC) and ~40 times higher anthocyanin concentrations (TAC) than white grapes, while red grapes had intermediate levels of TAA, TPC and TAC. The effects of season and production system and differences between varieties of the same grape type were substantially smaller. Grapes imported from Mediterranean countries in summer had a 14% higher TPC and ~20% higher TAA than grapes imported from South Africa in winter, and organic grapes had a 16% higher TPC and 22% higher TAA, but ~30% lower TAC than conventional grapes. Significant differences in TPC, TAA and/or TAC between organic and conventional grapes could only be detected for specific grape types, varieties and/or sampling years.
Details
- Title
- Effects of Production Region, Production Systems and Grape Type/Variety on Nutritional Quality Parameters of Table Grapes; Results from a UK Retail Survey
- Creators
- Gultakin Hasanaliyeva (Author) - Newcastle UniversityEleni Chatzidimitrou (Author) - Newcastle UniversityJuan Wang (Author) - Newcastle UniversityMarcin Baranski (Author) - Warsaw UniversityNikolaos Volakakis (Author) - GeokomiChris Seal (Author) - Newcastle UniversityEduardo A S Rosa (Author) - University of Trás-os-Montes and Alto DouroPer Ole Iversen (Author) - University of OsloVanessa Vigar (Author) - Southern Cross UniversityBronwyn Barkla (Author) - Southern Cross UniversityCarlo Leifert (Author) - Southern Cross UniversityLeonidas Rempelos (Author) - University of Newcastle
- Publication Details
- Foods, Vol.9(12), p.1874
- Publisher
- Switzerland
- Grant note
- no grant number / Sheepdrove Trust no grant number / Azerbaijan Ministry of Education
- Identifiers
- 991012911799702368
- Academic Unit
- Faculty of Science and Engineering; Science; Southern Cross Plant Science; Centre for Organics Research
- Language
- English
- Resource Type
- Journal article