Anthocyanins and nutrient components of saskatoon fruits (<i>Amelanchier alnifolia</i> Nutt.)

Ozga, Jocelyn A.; Saeed, Asma; Reinecke, Dennis M.

doi:10.4141/p05-139

Cited by 26 publications

(20 citation statements)

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“…In our studies, the content of anthocyanins in fruits of cv. “Smoky” was 29% higher than in this cultivar grown in Canada [ 26 ]. According to Jin et al [ 21 ], the contents of anthocyanins in cvs.…”

Section: Resultsmentioning

confidence: 99%

Phytochemical Composition and Antioxidant Capacity of Seven Saskatoon Berry (Amelanchier alnifolia Nutt.) Genotypes Grown in Poland

et al. 2017

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The basic chemical composition, bioactive compounds, and antioxidant capacity of fruits of three new Polish breeding clones (No. 5/6, type S, and type N) and four Canadian cultivars (cvs.) (“Martin”, “Smoky”, “Pembina”, and “Honeywood”) grown in Poland in 2016 were investigated. Fruits were analyzed for their contents of triterpenoids, carotenoids, chlorophylls, and polyphenolics with the ultra-performance liquid chromatography photodiode detector-quadrupole/time-of-flight mass spectrometry (UPLC-PDA-Q/TOF-MS) method, sugar with the high-performance liquid chromatography–evaporative light scattering detector (HPLC-ELSD) method, and antioxidant capacity with the ability to reduce free radical (ABTS) and ferric reducing ability of plasma (FRAP) method. Thirty-eight bioactive compounds, including twenty-eight polyphenolic compounds (four anthocyanins, nine phenolic acids, nine flavonols, and seven flavan-3-ols), four carotenoids, two chlorophylls, and three triterpenoids were identified in the fruits. The fruits of the tested Saskatoon berry genotypes were found to be rich in phenolic compounds (3773.94–6390.36 mg/100 g·dm), triterpenoids (66.55–91.31 mg/kg·dm), and carotenoids (478.62–561.57 mg/kg·dm), with high ABTS and FRAP capacity (10.38–34.49 and 9.66–25.34 mmol·Trolox/100 g·dm, respectively). Additionally, the berries of these genotypes seemed to be a good source of sugar (9.02–19.69 g/100 g), pectins (0.67%–1.33%), and ash (0.59%–0.67%). Some genotypes of Saskatoon berry, especially the clones type S, type N, and cvs. “Honeywood” and “Smoky”, may be selected for their potential applications in commercial cultivation to produce fruits with valuable health-promoting nutritional effects on human health. Additionally, three new genotypes that may offer new functional materials can be recommended for fruit growers.

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Section: Resultsmentioning

confidence: 99%

Phytochemical Composition and Antioxidant Capacity of Seven Saskatoon Berry (Amelanchier alnifolia Nutt.) Genotypes Grown in Poland

et al. 2017

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“…2B). Stages 6 to 8 were sorted by fruit color (stage 6, 25%-50% red skin; stage 7, predominantly purple skin with some red or blue; stage 8, entirely dark blue and soft texture), as validated previously for other small fruits (Ozga et al, 2006). The initiation of seed coat browning (stage 5) slightly preceded the beginning of skin pigmentation (stage 6).…”

Section: Phenology Of Blueberry Fruit Developmentmentioning

confidence: 99%

“…Fruits were selected from multiple plants and sorted into an eight-stage system reflecting berry development, which was based on size and appearance, following validated methods for other small fruit (Ozga et al, 2006). There were two key phases of fruit growth during each season from which fruits were collected.…”

Section: Plant Materials and Developmental Staging Criteriamentioning

confidence: 99%

Gene Expression and Metabolite Profiling of Developing Highbush Blueberry Fruit Indicates Transcriptional Regulation of Flavonoid Metabolism and Activation of Abscisic Acid Metabolism

Zifkin

Jin²,

Ozga³

et al. 2011

Plant Physiology

257

281

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Highbush blueberry (Vaccinium corymbosum) fruits contain substantial quantities of flavonoids, which are implicated in a wide range of health benefits. Although the flavonoid constituents of ripe blueberries are known, the molecular genetics underlying their biosynthesis, localization, and changes that occur during development have not been investigated. Two expressed sequence tag libraries from ripening blueberry fruit were constructed as a resource for gene identification and quantitative realtime reverse transcription-polymerase chain reaction primer design. Gene expression profiling by quantitative real-time reverse transcription-polymerase chain reaction showed that flavonoid biosynthetic transcript abundance followed a tightly regulated biphasic pattern, and transcript profiles were consistent with the abundance of the three major classes of flavonoids. Proanthocyanidins (PAs) and corresponding biosynthetic transcripts encoding anthocyanidin reductase and leucoanthocyanidin reductase were most concentrated in young fruit and localized predominantly to the inner fruit tissue containing the seeds and placentae. Mean PA polymer length was seven to 8.5 subunits, linked predominantly via B-type linkages, and was relatively constant throughout development. Flavonol accumulation and localization patterns were similar to those of the PAs, and the B-ring hydroxylation pattern of both was correlated with flavonoid-3#-hydroxylase transcript abundance. By contrast, anthocyanins accumulated late in maturation, which coincided with a peak in flavonoid-3-O-glycosyltransferase and flavonoid-3#5#-hydroxylase transcripts. Transcripts of VcMYBPA1, which likely encodes an R2R3-MYB transcriptional regulator of PA synthesis, were prominent in both phases of development. Furthermore, the initiation of ripening was accompanied by a substantial rise in abscisic acid, a growth regulator that may be an important component of the ripening process and contribute to the regulation of blueberry flavonoid biosynthesis.Highbush blueberry (Vaccinium corymbosum; Ericaceae) is one of the most economically important fruit crops in North America. Blueberry fruit have been the focus of much recent attention due to numerous reports of their positive effects on human health. These benefits are generally attributed to high levels of polyphenolics, in particular the flavonoids (Rasmussen et al., 2005). Highbush blueberries have one of the highest in vitro antioxidant capacities of any fruit or vegetable (Prior and Gu, 2005;Wu et al., 2006). The major health benefits linked to the consumption of blueberries include a reduced risk for cardiovascular (Basu et al., 2010) and neurodegenerative (Neto, 2007) diseases. Furthermore, experiments on rodents suggest that blueberry extracts may also prevent cancer, slow tumor growth, and reverse cognitive and behavioral deficits related to stroke and aging (Lau et al., 2005;Gordillo et al., 2009).The three common types of flavonoids that accumulate in blueberry fruit are the flavonols, anthocya-

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“…Material was roughly sorted into stages on site, frozen in liquid nitrogen, then stored at -80° C. Flowers were sorted into two stages, closed flower (CF) and open flower (OF), based on whether or not the corolla was open at the apex. Frozen berries were later sorted on dry ice into eight stages based on size, then colour (Ozga et al, 2006;Zifkin et al, 2012). Immature berries were small, hard, and green, and progressed towards a more delicate, deep purple berry when mature (Fig.…”

Section: Plant Materialsmentioning

confidence: 99%

Phytochemical analysis of salal berry ( Gaultheria shallon Pursh.), a traditionally-consumed fruit from western North America with exceptionally high proanthocyanidin content

et al. 2018

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Salal (Gaultheria shallon Pursh.) is a wild perennial shrub of the Ericaceae and common in coastal forests of western North America, and its berries were an important traditional food for First Nations in British Columbia. Salal berries were investigated for phytochemical content and antioxidant capacity over the course of fruit development. The proanthocyanidin content was extremely high in young berries (280.7 mg/g dry wt) but dropped during development to 52.8 mg/g dry wt. By contrast, anthocyanins accumulated only at the late berry stages. Total antioxidant capacity, as measured by the 2,2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid (ABTS) method, reflected both proanthocyanidin and anthocyanin content, and in mature berries reached 36 mmol Trolox equivalents/100 g dry wt. More detailed phytochemical analysis determined that delphinidin 3-O-galactoside is the dominant anthocyanin, and that the berries are also rich in procyanidins, including procyanidin A2 which has been implicated in anti-adhesion activity for uropathogenic E. coli. Proanthocyanidins were 60% prodelphinidin, and overall concentrations were higher than reported for many Vaccinium species including blueberry, lingonberry, and cranberry. Overall, the phenolic profile of salal berries indicates that these fruit contain a diversity of health-promoting phenolics.

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Anthocyanins and nutrient components of saskatoon fruits (Amelanchier alnifolia Nutt.)

Cited by 26 publications

References 10 publications

Phytochemical Composition and Antioxidant Capacity of Seven Saskatoon Berry (Amelanchier alnifolia Nutt.) Genotypes Grown in Poland

Phytochemical Composition and Antioxidant Capacity of Seven Saskatoon Berry (Amelanchier alnifolia Nutt.) Genotypes Grown in Poland

Gene Expression and Metabolite Profiling of Developing Highbush Blueberry Fruit Indicates Transcriptional Regulation of Flavonoid Metabolism and Activation of Abscisic Acid Metabolism

Phytochemical analysis of salal berry ( Gaultheria shallon Pursh.), a traditionally-consumed fruit from western North America with exceptionally high proanthocyanidin content

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