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Increasing anthocyanin content in Queen Garnet plum and correlations with in-field measures


Fanning, K and Edwards, D and Netzel, M and Stanley, R and Netzel, G and Russell, D and Topp, B, Increasing anthocyanin content in Queen Garnet plum and correlations with in-field measures, Acta Horticulturae, 20-26 May 2012, California, United States of America, pp. 97-104. ISSN 0567-7572 (2013) [Refereed Conference Paper]

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While plums are traditionally bred for fresh fruit traits such as size, sweetness, yield and disease resistance the Queensland Government breeding program for Japanese plum (Prunus salicina Lindl.) also selected for anthocyanin content to develop a new plum selection named ‘Queen Garnet’. When ripe or overripe, it has a near black skin and deep red flesh colour, which when combined, result in exceptionally high anthocyanin content, reaching up to 277 mg/100 g fruit. The skin fraction contributes 36-66% of the total anthocyanin content of fruit. The plum is now being commercially grown to be processed into a range of functional products from food colourants to premium health products. These are sold on the basis of anthocyanin and antioxidant content. Protocols for increasing anthocyanin content have therefore been researched to maximise the total anthocyanin yield rather than fresh fruit weight and taste. The principal approach is through selective harvest of overripe plums high in colour, although post-harvest storage at 21°C results in further anthocyanin synthesis. Modified processing is also required to ensure recovery of anthocyanins from the skin fraction. The plum products have entered testing for assessing health properties beginning with an initial proof of in vivo bioavailability of the anthocyanins.

Item Details

Item Type:Refereed Conference Paper
Keywords:Prunus salicina, phytochemicals, antioxidants, functional food, health
Research Division:Agricultural, Veterinary and Food Sciences
Research Group:Horticultural production
Research Field:Horticultural crop growth and development
Objective Division:Plant Production and Plant Primary Products
Objective Group:Horticultural crops
Objective Field:Stone fruit (excl. avocado)
UTAS Author:Stanley, R (Professor Roger Stanley)
ID Code:97656
Year Published:2013
Web of Science® Times Cited:10
Deposited By:Tasmanian Institute of Agriculture
Deposited On:2015-01-07
Last Modified:2018-07-20

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