scholarly journals Evaluation of Anthocyanin Profiles in Various Blackcurrant Cultivars over a Three-Year Period Using a Fast HPLC-DAD Method

Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1745
Author(s):  
Barbora Šimerdová ◽  
Michaela Bobríková ◽  
Ivona Lhotská ◽  
Jiří Kaplan ◽  
Alena Křenová ◽  
...  

Anthocyanins are the most important polyphenolic substances contained in blackcurrant fruits. They are responsible for the various health benefits caused, in particular, by their high antioxidant activity. Anthocyanins derived from anthocyanidins cyanidin and delphinidin are typical for blackcurrant fruits, especially their rutinoside and glucoside forms. These four anthocyanins usually represent about 97–98% of total anthocyanins in blackcurrant fruits. In this study, we developed and validated a new HPLC-DAD method for rapid anthocyanin separation and determination in fifteen perspective blackcurrant cultivars (‘Ruben’, ‘Ben Lomond’, ‘Ben Conan’, ‘Ceres’, ‘Moravia’, ‘Ometa’, ‘Lota’, ‘Fokus’, ‘Tenah’, ‘Sejanec’, ‘Consort’, ‘Triton’, ‘Ben Hope’, ‘Ben Gairn’, and one gooseberry hybrid ‘Josta’). Eight of them were monitored throughout the three-year experiment. The most represented anthocyanins in all monitored blackcurrant cultivars were delphinidin-3-rutinoside (36.7–63.6%), cyanidin-3-rutinoside (26.4–40.6%), delphinidin-3-glucoside (6.1–17.9%), and cyanidin-3-glucoside (1.3–9.9%). The individual anthocyanin proportion (%) in each cultivar was specific, and a similar profile was verified in a three-year period for eight available cultivars. Total anthocyanin content expressed as a sum of four major anthocyanins present in blackcurrants was compared with values expressed as the equivalent of cyanidin-3-glucoside, as many authors do. We revealed an underestimation of about 20% with the latter method. Cultivars with the highest average total anthocyanin content were ‘Ben Gairn’ (294.38 mg/100 g), ‘Ceres’ (281.31 mg/100 g), and ‘Ometa’ (269.09 mg/100 g).

2016 ◽  
Vol 36 (03) ◽  
pp. 261 ◽  
Author(s):  
Lydia Ninan Lestario ◽  
Driana Herawati ◽  
Silvia Andini

Restructuration is one of the ways for processing fresh fruit without heating, so the nutritional value of fruit can be maintained. This method has been applied to several types of tropical fruits but has never been applied to java plum fruit, while it has high antioxidant activity but has a short shelf life. The aim of this research was to produce the best formulation to make restructured java plum fruit. Fresh java plum fruit puree was mixed with several concentrations of calcium alginate (1 %, 2 %, 3 %, and 4 %) and CaCl2 (0.75 %; 1 %). Restructured fruit products were evaluated for total anthocyanin content, antioxidant activity, texture, pH, and sensory properties. The result of this research showed that 1 % alginate and 1 % CaCl2 gave restructured java plum fruit with the highest anthocyanin content 171.61 mg/100g (DW) and highest antioxidant activity 75.79 %. The overall organoleptic test with 20 panelists showed that restructured fruit with alginate 1 % and CaCl2 1 % or 0.75 % resulted the highest score 3.75. ABSTRAKRestrukturisasi merupakan salah satu cara pengolahan buah segar tanpa pemanasan sehingga nilai gizi buah dapat dipertahankan. Metode ini sudah diteliti pada beberapa jenis buah tropis tetapi belum pernah dilakukan terhadap buah duwet, padahal buah duwet memiliki aktivitas antioksidan tinggi tetapi memiliki daya simpan rendah. Penelitian ini bertujuan untuk menentukan formulasi terbaik pada pembuatan restrukturisasi buah duwet. Bubur buah duwet segar dicampur dengan berbagai konsentrasi alginat (1 %, 2 %, 3 %, dan 4 %) dan CaCl2 (0,75 %; 1 %). Produk buah hasil restrukturisasi diukur kandungan antosianin total, aktivitas antioksidan, tekstur, pH, dan sifat-sifat sensorisnya. Hasil penelitian menunjukkan bahwa alginat 1% dan CaCl2 1% memiliki kandungan antosianin tertinggi yaitu 171,61 mg/100g (BK) dan aktivitas antioksidan tertinggi yaitu 75,79 %. Uji organoleptik dengan 20 panelis menunjukkan bahwa produk restrukturisasi buah duwet yang paling disukai panelis diperoleh dari perlakuan alginat 1 % dan CaCl2 1 % atau 0,75 % dengan skor 3,75.Kata kunci: Antosianin; antioksidan; restrukturisasi; Syzygium cumini


Foods ◽  
2021 ◽  
Vol 10 (5) ◽  
pp. 1073
Author(s):  
Meng-Bo Tian ◽  
Lin Yuan ◽  
Ming-Yuan Zheng ◽  
Zhu-Mei Xi

Anthocyanins are vital components of plant secondary metabolites, and are also the most important coloring substances in wine. Teinturier cultivars are rich in anthocyanins. However, the differences in anthocyanin accumulation and profiles between teinturier and non-teinturier cultivars have not been reported. In this study, Yan 73 and Dunkelfelder were selected as the experimental materials, and three non-teinturier cultivars were used for comparison. LC-MS and qRT-PCR were used to determine the individual anthocyanin contents and the relative gene expression. The results show that the total anthocyanin content of the teinturier cultivars was considerably higher than that in non-teinturier cultivars, and the levels of individual anthocyanins increased gradually during ripening. Lower ratios of modified anthocyanins were found in the teinturier cultivars, which was not only due to the high expression level of VvUFGT and VvGST4, but also due to the relatively low expression of VvOMT in these cultivars. Cluster analysis of gene expression and anthocyanin accumulation showed that VvUFGT is related to anthocyanin accumulation, and that AM1 is related to the synthesis and transport of methylated anthocyanins. Our results will be useful for further clarifying the pathways of anthocyanin synthesis, modification, and transport in teinturier cultivars.


Author(s):  
Pranabendu Mitra ◽  
Venkatesh Meda ◽  
Rick Green

The main objective of this research was to compare the retention of antioxidant activity and total anthocyanin content of Saskatoon berries dried by freeze drying, microwave-vacuum drying, thin layer hot air drying and vacuum drying. Antioxidant activity of berry samples was determined by DPPH radical scavenging and ABTS radical scavenging, and the pH differential method was used to determine total anthocyanin content of the berry samples. The results showed that the freeze dried Saskatoon berries exhibited the highest retention of anthocyanin and antioxidant activity among the dried samples, followed by microwave-vacuum dried berries, thin layer hot air dried berries and vacuum dried berries. There were significant differences between the berry samples at P<0.05.  DPPH radical scavenging and ABTS radical scavenging were correlated linearly with an R2 value of 0.99 at P<0.05 showing their effectiveness for the determination of the antioxidant activity of the Saskatoon berries. However, the DPPH radical scavenging assay was more effective than the ABTS radical scavenging assay. The results also showed that antioxidant activity of the berries was highly correlated with the total anthocyanin content of the fruit. The reduction of anthocyanin in dried berry samples was linearly correlated with the reduction of DPPH radical scavenging with an R2 value of 0.97 at P<0.05 and, also, linearly correlated with the reduction of ABTS radical scavenging with an R2 value of 0.88 at P<0.05.


2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Pranabendu Mitra ◽  
Venkatesh Meda ◽  
Rick Green

The main objective of this research was to compare the retention of antioxidant activity and total anthocyanin content of Saskatoon berries dried by freeze drying, microwave-vacuum drying, thin layer hot air drying and vacuum drying. Antioxidant activity of berry samples was determined by DPPH radical scavenging and ABTS radical scavenging, and the pH differential method was used to determine total anthocyanin content of the berry samples. The results showed that the freeze dried Saskatoon berries exhibited the highest retention of anthocyanin and antioxidant activity among the dried samples, followed by microwave-vacuum dried berries, thin layer hot air dried berries and vacuum dried berries. There were significant differences between the berry samples at P<0.05.  DPPH radical scavenging and ABTS radical scavenging were correlated linearly with an R2 value of 0.99 at P<0.05 showing their effectiveness for the determination of the antioxidant activity of the Saskatoon berries. However, the DPPH radical scavenging assay was more effective than the ABTS radical scavenging assay. The results also showed that antioxidant activity of the berries was highly correlated with the total anthocyanin content of the fruit. The reduction of anthocyanin in dried berry samples was linearly correlated with the reduction of DPPH radical scavenging with an R2 value of 0.97 at P<0.05 and, also, linearly correlated with the reduction of ABTS radical scavenging with an R2 value of 0.88 at P<0.05.


2018 ◽  
Vol 3 (3) ◽  
pp. 99-103 ◽  
Author(s):  
Mohammad Ehsan Taghavizadeh Yazdi ◽  
Jalil Khara ◽  
Mohammad Reza Housaindokht ◽  
Hamid Reza Sadeghnia ◽  
Sedigheh Esmaeilzadeh Bahabadid ◽  
...  

Currently, there have been lots of interests in phytochemicals as bioactive components. The roles of fruit, vegetables, and red pigments in preventing diseases have been partly accredited to the antioxidant properties of their constituent polyphenols, flavonoid, anthocyanins, and etc. Biochemistry parameters including the relative levels of antioxidant activity, total phenolic content, total flavonoid, total anthocyanin, soluble and insoluble sugar content of Ribes khorasanicum, have been calculated in this project. The total anthocyanin content of the investigated Ribes khorasanicum measured to be 62.9 mg/g in dry weight, while displaying high levels when compared to other components, which indicates that the anthocyanin content was the predominant antioxidant components in the investigated plant. This particular plant has the potential to serve as the important source of antioxidant that can be utilized in different biological and medical applications.


2018 ◽  
Vol 46 (2) ◽  
pp. 639-652 ◽  
Author(s):  
Onur Tolga OKAN ◽  
İlhan DENİZ ◽  
Nurettin YAYLI ◽  
İhsan Güngör ŞAT ◽  
Mehmet ÖZ ◽  
...  

Commercial blueberry production has been a viable industry throughout the world for 95 years; because of blueberry is a good source of antioxidant. Blueberries are especially rich in anthocyanin, a flavonoid with potent antioxidant capacity. The aim of this study was to compare the phenolic quantities, antioxidant activities, anthocyanin, sugar and phenolic compounds of blueberries produced in Turkey with those of similar blueberry varieties produced around the world. As a result of the conducted analysis, the total phenolic content (TPC) amount found in the berries was 77.26-215.12 mg GAE/100 g, the total flavonoid content (TFC) was 30.44-91.69 mg QE/100 g and the total anthocyanin content (TAC) was 43.03-295.06 mg c3-GE/100 g. Examining the antioxidant activities of the berries, DPPH between 1.10-5.65 mg/ml, FRAP between 454.93-36832.96 µmol troloks/100 g, β-Carotene between 40.66-86.48%. It was determined that the natural berries contained much more phenolic compounds and higher antioxidant activity than that of the cultivars The result of HPLC analysis, chlorogenic acid is determined to be the dominant compound in all berries. Furthermore, fructose and glucose are found in all fruits in different quantities while sucrose is found in certain varieties of berries as well. At the end of the performed study the data indicate that wild and cultivars of blueberries are rich sources of antioxidants for local as well international industries importing this fruit for food processing and enormous products.


Author(s):  
Padma S Vankar ◽  
Jyoti Srivastava

Anthocyanins are natural colorants which have gained a growing interest due to their extensive range of colors and beneficial health effects. The red and blue shades of 15 flowers were extracted with 1 % acidic methanol and these extracts were then screened for Total Anthocyanin content (TAC) using the pH method. In this paper the overall anthocyanin content of red and blue flowers was determined at room temperature (25°C). TAC accounts for the antioxidant activity of red and blue flowers. A quantitative relationship between acid-base and redox chemistry was also drawn.


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