Feel the Goodness

Research

Nutrafruit has worked closely with the University of Queensland (UQ), University of Southern Queensland (USQ), Queensland Government’s Department of Agriculture and Fisheries (DAF), CSIRO and other organisations to explore the health benefits of various fruits, and related products, including the jewel in its crown – the Queen Garnet.

The completed research includes:

  • DAF – Various studies to determine the optimal horticultural production methods to maximise the production of anthocyanin in the Queen Garnet plum.
  • USQ – In an initial study, we tested the QG Nectar in a pre-clinical rat model of diet-induced obesity. The QG Nectar containing anthocyanins reduced body weight, systolic blood pressure, blood lipids and improved heart and liver structure and function
  • Griffith University – Conducted a pilot study to assess the anti-thrombotic properties of QG plum juice and anthocyanin-free prune juice in a randomised test. The study demonstrated QG plum juice is effective in reducing platelet activation related thrombogenesis in healthy human subjects.
  • UOW – Studied the dose-timing effect of taking three 100 mL QG Nectar over 3 hours versus a single 300 mL dose over 3 hours for both young and old participants. The results showed that blood pressure decreased post-consumption.

Further research is currently being undertaken by:

  • USQ to identify food products for attenuation of ageing-related complications such as weaker bones, weaker muscles, cardiovascular problems and diabetes.
  • Queensland Alliance for Agriculture and Food Innovation (including UQ, DAF and CSIRO) to provide initial research Into developing innovative nutrient dense fruit and vegetable products that are both visually attractive and flavoursome to consumers.
  • Victoria University into the impact of consuming QG Nectar on reducing hypertension in otherwise healthy humans.
  • The University of Wollongong into the impact of ingesting QG Nectar on improving cognitive function in elderly people.

Click on the links below for information on the research findings.

Journal of Food Biochemistry - Urinary excretion of antioxidants in healthy humans
This study measures the antioxidant and anthocyanin content of Queen Garnet plum (QGP), compared to the data about the absorption and metabolism of QGP anthocyanins/antioxidants in healthy humans as assessed by their urinary excretion. The results indicated the Queen Garnet plum and similar products could be a new source of anthocyanins as natural ingredients.
Urinary Pharmacokinetics of Queen Garnet Plum Anthocyanins in Healthy Human Subjects
This study measures the antioxidant and anthocyanin content of Queen Garnet plum (QGP), compared to the data about the absorption and metabolism of QGP anthocyanins/antioxidants in healthy humans as assessed by their urinary excretion. The results indicated the Queen Garnet plum and similar products could be a new source of anthocyanins as natural ingredients.
Production of the High Anthocyanin Plum Variety, Queen Garnet, as a New Ingredient for the Functional Food Market
This study focused on the large scale commercial production of the Queen Garnet plum. The strategy behind the research was to produce a high value, high anthocyanin product for the functional foods and health food markets.
Phytochemicals in Japanese plums: impact of maturity and bioaccessibility
The review compared the new variety of Japanese plum – Queen Garnet, with the Black Diamond variety, as the knowledge of other phytochemical content, and bioaccessibility, in the Queen Garnet is limited. The study compared the impact of harvest dates, the content of bound phenolics in plum fruit, and the in vitro bioaccessibility of the fruit.
Japanese plums (Prunus salicina Lindl.) and phytochemicals – breeding, horticultural, practice, postharvest storage, processing and bioactivity
Previous studies on phytochemical content and health benefits of plums have focused on the European plum strand. This study has focused on Japanese plums, known as blood plums, and review their nutrient and phytochemical content, breeding, horticultural practice, postharvest treatment and processing, as well as bioactivity. There is an extra focus on the anthocyanin content that distinguishes the blood plums.
Cyanidin 3-glucoside improves diet-induced metabolic syndrome in rats
This study compared the changes in metabolic parameters, and in cardiovascular and liver structure and function in rats, with two separate additions of cyanidin 3-glucoside or Queen Garnet plum juice containing cyanidin glycosides. These were given to rats who were fed either a corn starch or a high-carbohydrate, high-fat diet.
Consumption of anthocyanin-rich Queen Garnet plum juice reduces platelet activation related thrombogenesis in healthy volunteers
The anti-thrombotic properties of an anthocyanin-rich Queen Garnet plum juice and anthocyanin-free prune juice were studied in this randomised test. The test aimed to measure the potential reduction in platelet activation related thrombogenesis in healthy subjects.
Anthocyanin-rich plum juice reduces ambulatory blood pressure...
Consumption of anthocyanins from fruit sources may exert protection against hypertension and improve cognition. However, the effect of dose timing in studies is rarely considered. The researchers hypothesized that timed-dose consumption of juice from an anthocyanin-rich Japanese plum variety (Queen Garnet plum, QGP) will have acute and dose-timing effects on cardiovascular responses, cognition, and urinary anthocyanin excretion profiles. The study objective was to investigate the impact of plum juice on these health parameters.
The effect of two doses of dried plum on bone density and bone biomarkers in osteopenic postmenopausal women: a randomized, controlled trial.
Daily consumption of 50 g of dried plum (equivalent to 5-6 dried plums) for 6 months may be as effective as 100 g of dried plum in preventing bone loss in older, osteopenic postmenopausal women. To some extent, these results may be attributed to the inhibition of bone resorption with the concurrent maintenance of bone formation.
Queen Garnet plum juice and raspberry cordial in mildly hypertensive obese or overweight subjects: A randomized, double-blind study

QG juice decreased blood pressure and attenuated some risk factors of metabolic syndrome after 12 weeks suggesting that daily con- sumption could attenuate the development of cardiovascular and metabolic diseases.

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Cyanidin 3-glucoside from Queen Garnet plums and purple carrots attenuates DSS-induced inflammatory bowel disease in rats

Compared to D rats, DQ, DP and DC rats showed improved stool consistency and bleeding, reduced ileum and colon inflammation, with no changes in gut microbiota. Thus, supplementation with C3G-containing foods may ameliorate the symptoms of IBD.

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