Comparative analysis of quality and nutritional traits from Lonicera caerulea (Honeyberry) cultivars and other berries grown in Scotland

• Published in: Annals of applied biology Vol. 182; no. 2; pp. 171 - 182
• Main Authors: Gamble, Louise, Pont, Simon D. A., Allwood, J. William, Jarret, Dorota A., Hancock, Robert D.
• Format: Journal Article
• Language: English
• Published: Oxford, UK Blackwell Publishing Ltd 01-03-2023; Wiley Subscription Services, Inc
• Subjects: Acidity; Anthocyanins; Berries; Blueberries; Comparative analysis; Cultivars; Cultivation; environmental variation; Food quality; fruit quality; Fruits; genetic variation; Glycosides; Harvesting; Lonicera caerulea; novel crops; nutritional quality; Sensation; Strawberries; United Kingdom > UK; Scotland
• ISSN: 0003-4746; 1744-7348
• DOI: 10.1111/aab.12805

Lonicera caeruleabrix is a perennial shrub native to North America, Europe and Asia. It produces dark blue berries known as honeyberries or haskap berries which are produced commercially in several territories including Canada, Japan, Russia and Poland. Plants are suited to UK environments, but it is yet to be widely commercially developed in the UK. In the present work, quality and nutritional traits of six honeyberry cultivars grown in Scotland were compared with other commonly grown berry fruits (strawberry, raspberry, blueberry, blackberry, blackcurrant) to aid the identification of environmentally stable, high‐quality honeyberry cultivars suitable for UK cultivation. Differences were observed in fruit quality variables (soluble solids, titratable acidity and Brix/acid ratios) between honeyberry cultivars. Three of six cultivars examined exhibited notable variation in soluble solids dependent on harvest year with ‘Aurora’ and ‘Strawberry Sensation’ having consistently high oBrix values. Titratable acidity exhibited cultivar differences and there was limited variation over harvest years. ‘Aurora’ exhibited consistently high oBrix/titratable acidity ratio reflected by high glucose and fructose content. Honeyberry fruit had good nutritional profile relative to other soft fruits with higher polyphenol and anthocyanin content than strawberry, blueberry, blackberry and raspberry, manifested in greater antioxidant capacity. The major anthocyanins in aqueous honeyberry fruit extracts were cyanidin, pelargonidin and peonidin glycosides. These findings indicate that L. caerulea represents a crop suitable for UK cultivation capable of producing high quality fruit with a valuable nutritional profile relative to other soft fruits. Cultivars exhibit significant differences in fruit quality and nutritional profile as well as harvest consistency and growers should consider this when establishing new plantations.
We provide a comparative analysis of quality and nutritional traits of several honeyberry varieties grown for two consecutive years in Scotland. Data presented indicate the capacity to consistently produce high quality fruit under Scottish conditions with nutritional profiles that compare favourably to more established soft fruit crops.