Articles
Profiling sugars and polyphenolics in raspberry cultivars ‘Willamette’ and ‘Meeker’ grown in Serbia
Article number
1444_11
Pages
77 – 82
Language
English
Abstract
The commercial importance of the raspberry for Serbia is significant, as it is largely exported, with an average annual income exceeding 100 million USD. Serbia has a large raspberry production and ranks third in the world with around 98,000 t in 2023. The total area under raspberry cultivation in the Republic of Serbia is approximately 20,000 ha, of which more than 10% is organic.
The aim of this study was to analyze the sugar and polyphenol profile of two raspberry cultivars (‘Willamette’ and ‘Meeker’) grown organically and conventionally in some non-traditional locations in Serbia.
All organic cultivation was certified, meaning that no mineral fertilizers were used, and pest control was carried out according to the guidelines for organic cultivation.
In both conventional and organic raspberries, the most abundant sugars were glucose (16.549-37.59 mg g‑1) and fructose (20.468-37.706 mg g‑1) and sucrose (10.01-20.79 mg g‑1), while ellagic acid (552.206-1206.819 mg kg‑1) and catechin (7.527-12.386 mg g‑1) were the most abundant polyphenols.
Sucrose, glucose, and fructose together accounted for an average of 87% of all detected sugars.
In comparison, ellagic acid accounted for an average of more than 95% of all quantified polyphenols in raspberry fruit.
The sample with the highest sugar content was the organic ‘Willamette’ from the village of Krzava, while the sample with the highest polyphenol content was the organic ‘Willamette’ from the village of Sljivovo.
As far as cultivars are concerned, the ‘Willamette’ cultivar showed better results in both organic and conventional cultivation compared to ‘Meeker’. Due to the compounds identified and the high sugar content, as well as the quantified polyphenolic compounds, especially ellagic acid, those two raspberry cultivars from both production systems and different locations in Serbia could be considered as functional foods.
The aim of this study was to analyze the sugar and polyphenol profile of two raspberry cultivars (‘Willamette’ and ‘Meeker’) grown organically and conventionally in some non-traditional locations in Serbia.
All organic cultivation was certified, meaning that no mineral fertilizers were used, and pest control was carried out according to the guidelines for organic cultivation.
In both conventional and organic raspberries, the most abundant sugars were glucose (16.549-37.59 mg g‑1) and fructose (20.468-37.706 mg g‑1) and sucrose (10.01-20.79 mg g‑1), while ellagic acid (552.206-1206.819 mg kg‑1) and catechin (7.527-12.386 mg g‑1) were the most abundant polyphenols.
Sucrose, glucose, and fructose together accounted for an average of 87% of all detected sugars.
In comparison, ellagic acid accounted for an average of more than 95% of all quantified polyphenols in raspberry fruit.
The sample with the highest sugar content was the organic ‘Willamette’ from the village of Krzava, while the sample with the highest polyphenol content was the organic ‘Willamette’ from the village of Sljivovo.
As far as cultivars are concerned, the ‘Willamette’ cultivar showed better results in both organic and conventional cultivation compared to ‘Meeker’. Due to the compounds identified and the high sugar content, as well as the quantified polyphenolic compounds, especially ellagic acid, those two raspberry cultivars from both production systems and different locations in Serbia could be considered as functional foods.
Authors
M. Fotirić Akić, U. Gaić, T. Tosti, . Teić, M. Meland
Keywords
Rubus idaeus, glucose, fructose, ellagic acid, catechin
Groups involved
- Division Vine and Berry Fruits
- Division Plant-Environment Interactions in Field Systems
- Division Horticulture for Human Health
- Working Group Vaccinium Species and Management
- Working Group Rubus and Ribes Species and Management
- Working Group Kiwifruit Culture and Management
- Working Group Strawberry Culture and Management
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