Effects of Combining the Genes Controlling Anthocyanin and Melanin Synthesis in the Barley Grain on Pigment Accumulation and Plant Development

Anthocyanins and melanins are phenolic pigments of plants and accumulate in seed envelopes of the barley grain, thereby giving them a blue, purple, or black color. To explore the effects of combined accumulation of anthocyanins and melanins in the grain, a barley near-isogenic line (NIL), characterized by simultaneous accumulation in both pigments, was developed using a marker-assisted approach. The presence of both pigments in the grain pericarp was evaluated by light microscopy. Emergence of anthocyanin pigmentation proved to be temporally separated from that of melanin, and the formation of anthocyanin pigments began at an earlier stage of spike maturation. During spike maturation, a significantly higher total anthocyanin content was noted in the created NIL than in the parental anthocyanin-accumulating NIL, indicating a positive influence of the Blp1 gene on the anthocyanin content at some developmental stages. In a comparative analysis of yield components, it was found that the observed differences between the barley NILs are possibly caused by environmental factors, and the presence of pigments does not decrease plant productivity. Our results should facilitate investigation into genetic mechanisms underlying overlaps in the biosynthesis of pigments and into breeding strategies aimed at the enrichment of barley varieties with polyphenols.

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Inhibitory effects of bioaccessible anthocyanins and procyanidins from apple, red grape, cinnamon on α-amylase, α-glucosidase and lipase

International Journal for Vitamin and Nutrition Research ◽

10.1024/0300-9831/a000652 ◽

2020 ◽

pp. 1-9

Author(s):

Pınar Ercan ◽

Sedef Nehir El

Keyword(s):

Inhibitory Activity ◽

Digestive Enzymes ◽

Positive Control ◽

Anthocyanin Content ◽

Inhibitory Effects ◽

Total Anthocyanin ◽

Total Anthocyanin Content ◽

Before And After ◽

Red Grape

Abstract. The goals of this study were to determine and evaluate the bioaccessibility of total anthocyanin and procyanidin in apple (Amasya, Malus communis), red grape (Papazkarası, Vitis vinifera) and cinnamon (Cassia, Cinnamomum) using an in vitro static digestion system based on human gastrointestinal physiologically relevant conditions. Also, in vitro inhibitory effects of these foods on lipid (lipase) and carbohydrate digestive enzymes (α-amylase and α-glucosidase) were performed with before and after digested samples using acarbose and methylumbelliferyl oleate (4MUO) as the positive control. While the highest total anthocyanin content was found in red grape (164 ± 2.51 mg/100 g), the highest procyanidin content was found in cinnamon (6432 ± 177.31 mg/100 g) (p < 0.05). The anthocyanin bioaccessibilities were found as 10.2 ± 1%, 8.23 ± 0.64%, and 8.73 ± 0.70% in apple, red grape, and cinnamon, respectively. The procyanidin bioaccessibilities of apple, red grape, and cinnamon were found as 17.57 ± 0.71%, 14.08 ± 0.74% and 18.75 ± 1.49%, respectively. The analyzed apple, red grape and cinnamon showed the inhibitory activity against α-glucosidase (IC50 544 ± 21.94, 445 ± 15.67, 1592 ± 17.58 μg/mL, respectively), α-amylase (IC50 38.4 ± 7.26, 56.1 ± 3.60, 3.54 ± 0.86 μg/mL, respectively), and lipase (IC50 52.7 ± 2.05, 581 ± 54.14, 49.6 ± 2.72 μg/mL), respectively. According to our results apple, red grape and cinnamon have potential to inhibit of lipase, α-amylase and α-glucosidase digestive enzymes.

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Evaluation of Biochemical Juice Attributes and Color-Related Traits in Muscadine Grape Population

Foods ◽

10.3390/foods10051101 ◽

2021 ◽

Vol 10 (5) ◽

pp. 1101

Author(s):

Jiovan Campbell ◽

Ali Sarkhosh ◽

Fariborz Habibi ◽

Pranavkumar Gajjar ◽

Ahmed Ismail ◽

...

Keyword(s):

Principal Component ◽

Titratable Acidity ◽

Positive Influence ◽

Biochemical Properties ◽

Soluble Solids ◽

Matrix Analysis ◽

Anthocyanin Content ◽

Total Anthocyanin ◽

Color Characteristics ◽

Muscadine Grape

Biochemical juice attributes and color-related traits of muscadine grape genotypes have been investigated. For this study, 90 muscadine genotypes, including 21 standard cultivars, 60 breeding lines, and 9 Vitis x Muscadinia hybrids (VM), were evaluated. The biochemical properties of total soluble solids (TSS), titratable acidity, and TSS/Acid (T/A) ratio showed modest diversity among genotypes with a range of 10.3 °Brix, 2.1 mg tartaric acid/L, and 4.6, respectively. Nonetheless, the pH trait exhibited a tight range of 0.74 among the population with a minimum and maximum pH of 3.11 ± 0.12 and 3.85 ± 0.12. Color-related traits showed more deviation between individuals. Total anthocyanin content (TAC), luminosity index (L*), hue angle (h°), and chroma index (C*) displayed a range of 398 µg/g DW, 33.2, 352.1, and 24, respectively. The hierarchical clustering map classified the population into two large groups of colored and non-colored grapes based on L* and h°, suggesting the predominance of these two characters among the population. The colored berries genotypes clade was further divided into several sub-clades depending on C*, TAC, and TSS levels. The principal component analysis (PCA) separated the four-color characteristics into two groups with a negative correlation between them, L* and C* versus TAC and h°. Further, PCA suggested the positive influence of acidity in enhancing the different nutraceutical components. Despite the nature of anthocyanins as a member of phenolic compounds, a lack of significant correlation between TAC and nutraceutical-related traits was detected. The dissimilatory matrix analysis highlighted the muscadine individuals C11-2-2, E16-9-1, O21-13-1, and Noble as particular genotypes among the population due to enhanced color characteristics.

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Effect of Freeze Crystallization on Quality Properties of Two Endemic Patagonian Berries Juices: Murta (Ugni molinae) and Arrayan (Luma apiculata)

Foods ◽

10.3390/foods10020466 ◽

2021 ◽

Vol 10 (2) ◽

pp. 466

Author(s):

María Guerra-Valle ◽

Siegried Lillo-Perez ◽

Guillermo Petzold ◽

Patricio Orellana-Palma

Keyword(s):

Process Parameters ◽

Soluble Solids ◽

Total Phenolic ◽

Anthocyanin Content ◽

Flavonoid Content ◽

Total Polyphenol ◽

Total Anthocyanin ◽

Quality Properties ◽

Total Anthocyanin Content ◽

Ugni Molinae

This work studied the effects of centrifugal block freeze crystallization (CBFC) on physicochemical parameters, total phenolic compound content (TPCC), antioxidant activity (AA), and process parameters applied to fresh murta and arrayan juices. In the last cycle, for fresh murta and arrayan juices, the total soluble solids (TSS) showed values close to 48 and 54 Brix, and TPCC exhibited values of approximately 20 and 66 mg gallic acid equivalents/100 grams dry matter (d.m.) for total polyphenol content, 13 and 25 mg cyanidin-3-glucoside equivalents/100 grams d.m. for total anthocyanin content, and 9 and 17 mg quercetin equivalents/100 grams d.m. for total flavonoid content, respectively. Moreover, the TPCC retention indicated values over 78% for murta juice, and 82% for arrayan juice. Similarly, the AA presented an increase over 2.1 times in relation to the correspondent initial AA value. Thus, the process parameters values were between 69% and 85% for efficiency, 70% and 88% for percentage of concentrate, and 0.72% and 0.88 (kg solutes/kg initial solutes) for solute yield. Therefore, this work provides insight about CBFC on valuable properties in fresh Patagonian berries juices, for future applications in health and industrial scale.

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Differences in Anthocyanin Accumulation Profiles between Teinturier and Non-Teinturier Cultivars during Ripening

Foods ◽

10.3390/foods10051073 ◽

2021 ◽

Vol 10 (5) ◽

pp. 1073

Author(s):

Meng-Bo Tian ◽

Lin Yuan ◽

Ming-Yuan Zheng ◽

Zhu-Mei Xi

Keyword(s):

Gene Expression ◽

Plant Secondary Metabolites ◽

Anthocyanin Synthesis ◽

Anthocyanin Content ◽

Anthocyanin Accumulation ◽

Total Anthocyanin ◽

Total Anthocyanin Content ◽

The Individual ◽

Relative Gene ◽

High Expression Level

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.

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ANTHOCYANIN AND ANTHOCYANIDIN CONTENT OF HIGHBUSH BLUEBERRIES CULTIVATED IN BRAZIL

Boletim do Centro de Pesquisa de Processamento de Alimentos ◽

10.5380/cep.v31i2.34841 ◽

2013 ◽

Vol 31 (2) ◽

Author(s):

JÚLIA RIBEIRO SARKIS ◽

ISABEL CRISTINA TESSARO ◽

LIGIA DAMASCENO FERREIRA MAECZAK

Keyword(s):

Gradient Elution ◽

Vaccinium Corymbosum ◽

Differential Method ◽

Anthocyanin Content ◽

Qualitative And Quantitative Analysis ◽

Total Anthocyanin ◽

Qualitative And Quantitative ◽

Total Anthocyanin Content ◽

Highbush Blueberries ◽

Fresh Pulp

The objective of this study was to apply a HPLC methodology for qualitative and quantitative analysis of the six anthocyanidins present in fruits and to analyze the anthocyanin and anthocyanidin content of blueberries cultivated in Southern Brazil. The samples used belong to highbush blueberries (Vaccinium corymbosum) cultivars. Total anthocyanin content was determined by the pH differential method and an HPLC gradient elution system with C18 column and UV-Vis detection at 520 nm were used for separation and quantification of the anthocyanidins. Total anthocyanin content was of 128 ± 3 mg per 100 g of fresh pulp. Blueberry pulp presented 55 % of delphinidin, 8 % of cyanidin, 3 % of peonidin and 34 % of malvidin. Pelargonidin was not identified in the sample and petunidin was below the limits of quantification. The results were similar to those reported in studies using North American and European blueberries.

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Transcriptome analyses reveal anthocyanin biosynthesis in eggplants

10.7287/peerj.preprints.27289 ◽

2018 ◽

Author(s):

Xi Ou Xiao ◽

Wen qiu Lin ◽

Ke Li ◽

Xue Feng Feng ◽

Hui Jin ◽

...

Keyword(s):

Anthocyanin Biosynthesis ◽

Negative Regulation ◽

Anthocyanin Content ◽

Biosynthesis Pathway ◽

Rna Seq ◽

Wild Type ◽

Rt Pcr ◽

Total Anthocyanin ◽

Total Anthocyanin Content ◽

Cumulative Knowledge

We obtained a white-peel eggplant (L6-5) by EMS mutation in our previous study, whose total anthocyanin content was significantly decreased as compared with that of wild-type (WT). To analyse the anthocyanin biosynthesis mechanism in eggplants, we analysed the eggplant peel by RNA-seq in this study. The transcript results revealed upregulation of 465 genes and downregulation of 525 genes in L6-5 as compared with the WT eggplant. A total of 11 anthocyanin biosynthesis structure genes were significantly downregulated in L6-5 as compared with that in WT. Meanwhile, on the basis of the RT-PCR results of four natural eggplant cultivars, the expression pattern of 11 anthocyanin biosynthesis structure genes was consistent with the anthocyanin content. Thus, we speculated the anthocyanin biosynthesis pathway in eggplant peel. The transcript and RT-PCR results suggested positive regulation of MYB1, MYB108 and TTG8 and negative regulation of bHLH36 in anthocyanin biosynthesis. This study enhanced our cumulative knowledge about anthocyanin biosynthesis in eggplant peels.

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Effect of drying techniques on the retention of antioxidant activities of Saskatoon berries

International Journal of Food Studies ◽

10.7455/ijfs/2.2.2013.a8 ◽

2013 ◽

Vol 2 (2) ◽

Cited By ~ 5

Author(s):

Pranabendu Mitra ◽

Venkatesh Meda ◽

Rick Green

Keyword(s):

Antioxidant Activity ◽

Radical Scavenging ◽

Vacuum Drying ◽

Anthocyanin Content ◽

Dpph Radical ◽

Total Anthocyanin ◽

Hot Air ◽

Total Anthocyanin Content ◽

Dpph Radical Scavenging ◽

Radical Scavenging Assay

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.

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INFLUENCE OF IRRIGATION STRATEGIES ON THE PHYSICOCHEMICAL PROPERTIES OF ‘SYRAH’ WINE PRODUCED IN SÃO FRANCISCO VALLEY

Irriga ◽

10.15809/irriga.2018v23n4p818-834 ◽

2018 ◽

Vol 23 (4) ◽

pp. 818-834 ◽

Cited By ~ 1

Author(s):

Vanessa De Souza Oliveira ◽

Giuliano Elias Pereira ◽

Augusto Miguel Nascimento Lima ◽

Alessandra Monteiro Salviano ◽

Russaika Lirio Nascimento ◽

...

Keyword(s):

Physicochemical Properties ◽

Vitis Vinifera ◽

Deficit Irrigation ◽

Vitis Vinifera L ◽

Anthocyanin Content ◽

Regulated Deficit Irrigation ◽

Total Anthocyanin ◽

Volatile Acidity ◽

Total Anthocyanin Content ◽

Caixa Postal

INFLUENCE OF IRRIGATION STRATEGIES ON THE PHYSICOCHEMICAL PROPERTIES OF ‘SYRAH’ WINE PRODUCED IN SÃO FRANCISCO VALLEY VANESSA DE SOUZA OLIVEIRA1; GIULIANO ELIAS PEREIRA2; AUGUSTO MIGUEL NASCIMENTO LIMA1; ALESSANDRA MONTEIRO SALVIANO3; RUSSAIKA LÍRIO NASCIMENTO1 E LUÍS HENRIQUE BASSOI4 1Univasf, Colegiado de Engenharia e Ambienta, Avenida Antonio Carlos Magalhães, 510, 48902-300, Juazeiro - BA, Brasil. [email protected], [email protected], [email protected] 2Embrapa Uva e Vinho, Rua Livramento, 515, Caixa Postal 130, 95701-008, Bento Gonçalves - RS, Brasil. [email protected] 3Embrapa Semiárido, BR 428 km 152, Caixa Postal 23, 56302-970, Petrolina - PE, Brasil. [email protected] 4Embrapa Instrumentação, Rua XV de Novembro, 1452, Caixa Postal 741, 13560-970, São Carlos - SP, Brasil. [email protected] 1 ABSTRACT Deficit irrigation is used to control grapevine vegetative vigor and the grape composition can be influenced by soil water content. The minerals contained in the grapes are responsible for the physicochemical properties and stability of the wine. Therefore, the aim of this work was to evaluate the effects of irrigation strategies on the properties of ‘Syrah’ wines produced in São Francisco Valley, Brazil. The irrigation treatments used were FI (full irrigation), RDI (regulated deficit irrigation), and DI (deficit irrigation). Winemaking was performed by traditional methods, followed by stabilization and bottling. Density, alcohol content, pH, total and volatile acidity, total and free sulfur dioxide, total polyphenols index, color intensity, and total anthocyanin content were determined, as well as the contents of Ca, Mg, P, K, Na, Mn, Fe, Cu, Zn, Cd, Cr, Ni, and Pb. The properties of wines were influenced by irrigation strategies, except for the content of total anthocyanin, Mg, P, Na, Cu, and Mn. The contents of Cd, Cr, Fe, and Zn were similar in the vines. The wines demonstrated varied properties with different typicalities. Irrigation strategies can be recommended for different products, FI for young and cheap, and DI and RDI for aged and more expensive wines. Keywords: Vitis vinifera L., grape, water availability, tropical wine. OLIVEIRA, V. DE S.; PEREIRA, G. E.; LIMA, A. M. N.; SALVIANO, A. M.; NASCIMENTO, R. L. E BASSOI, L. H. INFLUÊNCIA DE ESTRATÉGIAS DE IRRIGAÇÃO NAS PROPRIEDADES FÍSICO-QUÍMICAS DO VINHO ‘SYRAH’ PRODUZIDO NO VALE DO SÃO FRANCISCO 2 RESUMO A irrigação com déficit é utilizada para controlar o vigor vegetativo da videira, e a composição da uva pode ser influenciada pela umidade do solo. Os minerais presentes nas uvas são responsáveis pelas propriedades físico-químicas e pela estabilidade do vinho. Portanto, o objetivo deste trabalho foi avaliar os efeitos de estratégias de irrigação sobre as propriedades do vinho ‘Syrah’ produzido no Vale do São Francisco, Brasil. As estratégias de irrigação utilizadas foram IP (irrigação plena), IDC (irrigação com déficit controlado) e ID (irrigação com déficit). A elaboração de vinhos foi realizada por métodos tradicionais, seguido de estabilização e engarrafamento. A densidade, teor de álcool, pH, acidez total e volátil, dióxido de total e livre de enxofre, o índice total de polifenóis, a intensidade da cor, conteúdo total de antocianina e concentrações de Ca, Mg, P, K, Na, Mn, Fe, Cu e Zn, Cd, Cr, Ni e Pb foram determinadas. As propriedades dos vinhos foram influenciadas pelas estratégias de irrigação, exceto os teores totais de antocianinas, e de Mg, P, Na, Cu e Mn. Os níveis de Cd, Cr, Fe e Zn foram semelhantes nos vinhos. Os vinhos demonstraram propriedades variadas com diferentes tipicidades. As estratégias de irrigação podem ser recomendadas para a obtenção de diferentes produtos, sendo a IP para vinhos jovens e baratos, e o ID e IDC para vinhos envelhecidos e mais caros. Palavras chave: Vitis vinifera L., uva, disponibilidade de água, vinho tropical.

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Effect of drying techniques on the retention of antioxidant activities of Saskatoon berries

International Journal of Food Studies ◽

10.7455/ijfs.v2i2.183 ◽

2013 ◽

Vol 2 (2) ◽

Author(s):

Pranabendu Mitra ◽

Venkatesh Meda ◽

Rick Green

Keyword(s):

Antioxidant Activity ◽

Radical Scavenging ◽

Vacuum Drying ◽

Anthocyanin Content ◽

Dpph Radical ◽

Total Anthocyanin ◽

Hot Air ◽

Total Anthocyanin Content ◽

Dpph Radical Scavenging ◽

Radical Scavenging Assay

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Biocomponents and Antioxidant Activity of Ribes khorasanicum

International journal of basic science in medicine ◽

10.15171/ijbsm.2018.18 ◽

2018 ◽

Vol 3 (3) ◽

pp. 99-103 ◽

Cited By ~ 7

Author(s):

Mohammad Ehsan Taghavizadeh Yazdi ◽

Jalil Khara ◽

Mohammad Reza Housaindokht ◽

Hamid Reza Sadeghnia ◽

Sedigheh Esmaeilzadeh Bahabadid ◽

...

Keyword(s):

Antioxidant Activity ◽

Sugar Content ◽

Antioxidant Properties ◽

Dry Weight ◽

Total Phenolic ◽

Anthocyanin Content ◽

Bioactive Components ◽

Total Anthocyanin ◽

Total Anthocyanin Content ◽

Biological And Medical Applications

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.

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