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Anthocyanin

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https://www.readbyqxmd.com/read/28646518/comparative-proteomics-and-protein-profile-related-to-phenolic-compounds-and-antioxidant-activity-in-germinated-oryza-sativa-kdml105-and-thai-brown-rice-mali-dang-for-better-nutritional-value
#1
Sarunyaporn Maksup, Sarintip Pongpakpian, Sittiruk Roytrakul, Suriyan Cha-Um, Kanyaratt Supaibulwatana
BACKGROUND: Brown rice (BR) and germinated brown rice (GBR) are considered as a prime source of carbohydrate and bioactive compounds for more than half of the world's populations. Several studies have reported on the proteomics of BR and GBR; however, the proteomic profiles related to the synthesis of bioactive compounds are less well documented. In this study, BR and GBR were used in a comparative analysis of the proteomic and bioactive compound profiles for two famous Thai rice varieties, Khao Dawk Mali 105 (KDML) and Mali Dang (MD)...
June 24, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28643121/a-study-on-the-expression-of-genes-involved-in-carotenoids-and-anthocyanins-during-ripening-in-fruit-peel-of-green-yellow-and-red-colored-mango-cultivars
#2
G R Karanjalker, K V Ravishankar, K S Shivashankara, M R Dinesh, T K Roy, D V Sudhakar Rao
Mango (Mangiferaindica L.) fruits are generally classified based on peel color into green, yellow, and red types. Mango peel turns from green to yellow or red or retain green colors during ripening. The carotenoids and anthocyanins are the important pigments responsible for the colors of fruits. In the present study, peels of different colored cultivars at three ripening stages were characterized for pigments, colors, and gene expression analysis. The yellow colored cultivar "Arka Anmol" showed higher carotenoid content, wherein β-carotene followed by violaxanthin were the major carotenoid compounds that increased during ripening...
June 22, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28642775/ectopic-expression-of-the-grape-hyacinth-muscari-armeniacum-r2r3-myb-transcription-factor-gene-maan2-induces-anthocyanin-accumulation-in-tobacco
#3
Kaili Chen, Hongli Liu, Qian Lou, Yali Liu
Anthocyanins are responsible for the different colors of ornamental plants. Grape hyacinth (Muscari armeniacum), a monocot plant with bulbous flowers, is popular for its fascinating blue color. In the present study, we functionally characterized an R2R3-MYB transcription factor gene MaAN2 from M. armeniacum. Our results indicated that MaAN2 participates in controlling anthocyanin biosynthesis. Sequence alignment and phylogenetic analysis suggested that MaAN2 belonged to the R2R3-MYB family AN2 subgroup. The anthocyanin accumulation of grape hyacinth flowers was positively correlated with the expression of MaAN2...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28640973/production-of-red-flowered-oilseed-rape-via-the-ectopic-expression-of-orychophragmus-violaceus-ovpap2
#4
Wenqin Fu, Daozong Chen, Qi Pan, Fengfeng Li, Zhigang Zhao, Xianhong Ge, Zaiyun Li
Oilseed rape (Brassica napus L.), which has yellow flowers, is both an important oil crop and a traditional tourism resource in China, whereas the Orychophragmus violaceus, which has purple flowers, likely possesses a candidate gene or genes to alter the flower color of oilseed rape. A previously established B. napus line has a particular pair of O. violaceus chromosomes (M4) and exhibits slightly red petals. In this study, the transcriptomic analysis of M4, B. napus (H3), and O. violaceus with purple petals (OvP) and with white petals (OvW) revealed that most anthocyanin biosynthesis genes were up-regulated in both M4 and OvP...
June 22, 2017: Plant Biotechnology Journal
https://www.readbyqxmd.com/read/28640193/identification-of-light-independent-anthocyanin-biosynthesis-mutants-induced-by-ethyl-methane-sulfonate-in-turnip-tsuda-brassica-rapa
#5
Jian-Fei Yang, Yun-Zhu Chen, Saneyuki Kawabata, Yu-Hua Li, Yu Wang
The epidermis of swollen storage roots in purple cultivars of turnip "Tsuda" (Brassica rapa) accumulates anthocyanin in a light-dependent manner, especially in response to UV-A light, of which the mechanism is unclear. In this study, we mutagenized 15,000 seeds by 0.5% (v/v) ethyl methane sulfonate (EMS) and obtained 14 mutants with abnormal anthocyanin production in their epidermis of swollen storage roots. These mutants were classified into two groups: the red mutants with constitutive anthocyanin accumulation in their epidermis of storage roots even in underground parts in darkness and the white mutants without anthocyanin accumulation in the epidermis of storage roots in aboveground parts exposed to sunlight...
June 22, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28638763/the-hidden-face-of-wine-polyphenol-polymerization-highlighted-by-high-resolution-mass-spectrometry
#6
Anna Vallverdú-Queralt, Emmanuelle Meudec, Matthias Eder, Rosa M Lamuela-Raventos, Nicolas Sommerer, Véronique Cheynier
Polyphenols, including tannins and red anthocyanin pigments, are responsible for the color, taste, and beneficial health properties of plant-derived foods and beverages, especially in red wines. Known compounds represent only the emerged part of the "wine polyphenol iceberg". It is believed that the immersed part results from complex cascades of reactions involving grape polyphenols and yeast metabolites. We used a non-targeted strategy based on high-resolution mass spectrometry and Kendrick mass defect plots to explore this hypothesis...
June 2017: ChemistryOpen
https://www.readbyqxmd.com/read/28636830/attenuation-of-hepatic-steatosis-by-purple-sweet-potato-color-is-associated-with-blocking-src-erk-c-ebp%C3%AE-signalling-in-high-fat-diet-treated-mice
#7
Xin Wang, Zi-Feng Zhang, Gui-Hong Zheng, Ai-Min Wang, Chun-Hui Sun, Su-Ping Qin, Juan Zhuang, Jun Lu, Dai-Fu Ma, Yuan-Lin Zheng
Our previous work showed that purple sweet potato color (PSPC), a class of naturally occurring anthocyanins, effectively improved hepatic glucose metabolic dysfunction in high-fat diet (HFD)-treated mice. This study investigated the effects of PSPC on HFD-induced hepatic steatosis and the signalling events associated with these effects. Mice were divided into four groups: Control group, HFD group, HFD+PSPC group and PSPC group. PSPC was administered daily for 20 weeks at oral doses of 700 mg/kg/day. Our results showed that PSPC significantly improved obesity and related metabolic parameters, as well as liver injury in HFD-treated mice...
June 21, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/28634482/whole-plant-temperature-manipulation-affects-flavonoid-metabolism-and-the-transcriptome-of-grapevine-berries
#8
Chiara Pastore, Silvia Dal Santo, Sara Zenoni, Nushin Movahed, Gianluca Allegro, Gabriele Valentini, Ilaria Filippetti, Giovanni Battista Tornielli
Among environmental factors, temperature is the one that poses serious threats to viticulture in the present and future scenarios of global climate change. In this work, we evaluated the effects on berry ripening of two thermal regimes, imposed from veraison to harvest. Potted vines were grown in two air-conditioned greenhouses with High Temperature (HT) and Low Temperature (LT) regimes characterized by 26 and 21°C as average and 42 and 35°C as maximum air daily temperature, respectively. We conducted analyses of the main berry compositional parameters, berry skin flavonoids and berry skin transcriptome on HT and LT berries sampled during ripening...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28633366/magnesium-deficiency-induced-alterations-of-gas-exchange-major-metabolites-and-key-enzymes-differ-among-roots-and-lower-and-upper-leaves-of-citrus-sinensis-seedlings
#9
Chun-Ping Li, Yi-Ping Qi, Jiang Zhang, Lin-Tong Yang, Dan-Hong Wang, Xin Ye, Ning-Wei Lai, Ling-Ling Tan, Dan Lin, Li-Song Chen
Magnesium (Mg)-deficiency is a widespread problem adversely affecting the quality and yield of crops, including citrus. 'Xuegan' [Citrus sinensis (L.) Osbeck] seedlings were irrigated every other day with nutrient solution at an Mg concentration of 0 mM (Mg-deficiency) or 1 mM (Mg-sufficiency) for 16 weeks. Thereafter, biomass, leaf mass per area, ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco), pigments in the upper and lower leaves, Mg, gas exchange, organic acids, nonstructural carbohydrates, total soluble proteins, amino acids, phenolics and anthocyanins, and key enzymes related to organic acid, amino acid and phenolic metabolisms in the roots, and upper and lower leaves were assayed in order to test the hypothesis that Mg-deficiency-induced alterations of gas exchange, major metabolites and key enzymes may differ among the roots, and upper and lower leaves...
June 14, 2017: Tree Physiology
https://www.readbyqxmd.com/read/28622347/rna-guided-transcriptional-activation-via-crispr-dcas9-mimics-overexpression-phenotypes-in-arabidopsis
#10
Jong-Jin Park, Emma Dempewolf, Wenzheng Zhang, Zeng-Yu Wang
Clustered regularly interspaced short palindromic repeats (CRISPR) and the CRISPR associated protein 9 (Cas9) system allows effective gene modification through RNA-guided DNA targeting. The Cas9 has undergone a series of functional alterations from the original active endonuclease to partially or completely deactivated Cas9. The catalytically deactivated Cas9 (dCas9) offers a platform to regulate transcriptional expression with the addition of activator or repressor domains. We redesigned a CRISPR/Cas9 activation system by adding the p65 transactivating subunit of NF-kappa B and a heat-shock factor 1 (HSF) activation domain to dCas9 bound with the VP64 (tetramer of VP16) activation domain for application in plants...
2017: PloS One
https://www.readbyqxmd.com/read/28621401/encapsulation-of-sour-cherry-pomace-extract-by-freeze-drying-characterization-and-storage-stability
#11
Vesna Šaponjac, Gordana Ćetković, Jasna Čanadanović-Brunet, Sonja Đilas, Biljana Pajin, Jovana Petrović, Stajčić Slađana, Jelena Vulić
In this study sour cherry pomace was extracted with food-grade solvent (50% ethanol), concentrated and stabilized in whey and soy proteins by encapsulation. Soy proteins exhibited higher encapsulation efficiency (94.90%), but not significantly (p < 0.05), from whey (90.10%). Storage properties of whey (WP) and soy protein (SP) encapsulates in terms of total polyphenols, anthocyanins and antioxidant activity were tested for 6 weeks. At the end of storage period the retention of polyphenols in SP and WP was similar (67...
June 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28620479/postprandial-glycaemic-response-to-berry-nectars-containing-inverted-sucrose
#12
Riitta Törrönen, Jarkko Hellström, Pirjo Mattila, Kyllikki Kilpi
Sucrose is commonly used for sweetening berry products. During processing and storage of berry products containing added sucrose, sucrose is inverted to glucose and fructose. We have previously shown that postprandial glycaemic response induced by intact sucrose is attenuated when sucrose is consumed with berries rich in polyphenols. It is not known how inversion of sucrose affects glycaemic response. We investigated postprandial glycaemic and insulinaemic responses to blackcurrant (Ribes nigrum) and lingonberry (Vaccinium vitis-idaea) nectars and a reference drink (water) sweetened with glucose and fructose, representing completely inverted sucrose...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28618783/pulsed-light-emitting-diodes-for-higher-phytochemical-level-in-microgreens
#13
Viktorija Vaštakaitė, Akvilė Viršilė, Aušra Brazaitytė, Giedrė Samuolienė, Julė Jankauskienė, Algirdas Novičkovas, Pavelas Duchovskis
A novel research of pulsed LED lighting versus continuous lighting was conducted by analyzing phytochemicals levels in microgreens. Red pak choi (Brassica rapa var. chinensis), mustard (Brassica juncea L.) and tatsoi (Brassica rapa var. rosularis) were grown indoors under HPS lamps supplemented with monochromatic (455 nm, 470 nm, 505 nm, 590 nm and 627 nm) LEDs (total PPFD 200±10 µmol m(-2) s(-1); 16 h day(-1)). For pulsed light treatments, the frequencies at 2 Hz, 32 Hz, 256 Hz, and 1024 Hz with a duty cycle of 50% of monochromatic LEDs were applied...
June 15, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28618655/eugenia-uniflora-fruit-red-type-standardized-extract-a-potential-pharmacological-tool-to-diet-induced-metabolic-syndrome-damage-management
#14
Pathise Souto Oliveira, Vitor Clasen Chaves, Natália Pontes Bona, Mayara Sandrielly Pereira Soares, Juliane de Souza Cardoso, Flávia Aleixo Vasconcellos, Rejane Giacomelli Tavares, Marcia Vizzotto, Luísa Mariano Cerqueira da Silva, Fabiane Borelli Grecco, Giovana Duzzo Gamaro, Roselia Maria Spanevello, Claiton Leoneti Lencina, Flávio Henrique Reginatto, Francieli Moro Stefanello
The aim of this study was to investigate the effect of Eugenia uniflora fruit (red type) extract on metabolic status, as well as on neurochemical and behavioral parameters in an animal model of metabolic syndrome induced by a highly palatable diet (HPD). Rats were treated for 150days and divided into 4 experimental groups: standard chow (SC) and water orally, SC and E. uniflora extract (200mg/kg daily, p.o), HPD and water orally, HPD and extract. Our data showed that HPD caused glucose intolerance, increased visceral fat, weight gain, as well as serum glucose, triacylglycerol, total cholesterol and LDL cholesterol; however, E...
June 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28617532/the-effect-of-a-natural-standardized-bilberry-extract-mirtoselect%C3%A2-in-dry-eye-a-randomized-double-blinded-placebo-controlled-trial
#15
A Riva, S Togni, F Franceschi, S Kawada, Y Inaba, R Eggenhoffner, L Giacomelli
OBJECTIVE: Dry eye, a chronic disease of lachrymal fluid and corneo-conjunctival epithelium, could significantly impact visual function, affects quality of life and work productivity. Beside several conventional treatments, nutritional supplements based on bilberry extract have been identified as effective contributors to eye health. Here, we aim at investigating the bioavailability of a standardized bilberry extract, its ability to alleviate dry eye symptoms and its antioxidant potential...
May 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28612608/higher-antioxidant-activity-total-flavonols-and-specific-quercetin-glucosides-in-two-different-onion-allium-cepa-l-varieties-grown-under-organic-production-results-from-a-6-year-field-study
#16
Feiyue Ren, Kim Reilly, Joseph P Kerry, Michael Gaffney, Mohammad Hossain, Dilip K Rai
We carried out a 6-year study to assess the effect of conventional, organic, and mixed cultivation practices on bioactive compounds (flavonoids, anthocyanins) and antioxidant capacity in onion. Total flavonoids, total anthocyanins, individual flavonols, individual anthocyanins, and antioxidant activity were measured in two varieties ('Hyskin' and 'Red Baron') grown in a long-term split-plot factorial systems comparison trial. This is the first report of repeated measurements of bioactive content over an extensive time period in a single crop type within the same trial...
June 14, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28612389/biochar-potential-in-intensive-cultivation-of-capsicum-anuum-l-sweet-pepper-crop-yield-and-plant-protection
#17
Abhay Kumar, Yigal Elad, Ludmila Tsechansky, Vikas Abrol, Beni Lew, Rivka Offenbach, Ellen R Graber
BACKGROUND: The influence of various biochars on crop yield and disease resistance of Capsicum anuum L. (sweet pepper) under modern, high-input, intensive net house cultivation was tested over the course of 2011 to 2014 in the Arava desert region of Israel. A pot experiment with Lactuca sativa L. (lettuce) grown in the absence of fertilizer employed the 3-year old field trial soils to determine if biochar treatments contributed to soil intrinsic fertility. RESULTS: Biochar amendments resulted in a significant increase in number and weight of pepper fruits over three years...
June 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28611922/the-bzip-transcription-factor-mdhy5-regulates-anthocyanin-accumulation-and-nitrate-assimilation-in-apple
#18
Jian-Ping An, Feng-Jia Qu, Ji-Fang Yao, Xiao-Na Wang, Chun-Xiang You, Xiao-Fei Wang, Yu-Jin Hao
The basic leucine zipper (bZIP) transcription factor HY5 plays a multifaceted role in plant growth and development. Here the apple MdHY5 gene was cloned based on its homology with Arabidopsis HY5. Expression analysis demonstrated that MdHY5 transcription was induced by light and abscisic acid treatments. Electrophoretic mobility shift assays and transient expression assays subsequently showed that MdHY5 positively regulated both its own transcription and that of MdMYB10 by binding to E-box and G-box motifs, respectively...
2017: Horticulture Research
https://www.readbyqxmd.com/read/28610734/impact-of-post-harvest-ozone-treatments-on-the-skin-phenolic-extractability-of-red-winegrapes-cv-barbera-and-nebbiolo-vitis-vinifera-l
#19
Maria Alessandra Paissoni, Susana Río Segade, Simone Giacosa, Fabrizio Torchio, Francesco Cravero, Vasileios Englezos, Kalliopi Rantsiou, Cristian Carboni, Vincenzo Gerbi, Pierre-Louis Teissedre, Luca Rolle
Recently the use of ozone as sanitizing agent has been proposed on winegrapes in order to control mycobiota after harvest. The aim of this work was to investigate possible indirect physico-chemical effects of ozone treatment on berry skin phenolic composition and extractability. Vitis vinifera L. cv Nebbiolo and Barbera, chosen for their different anthocyanin profiles, were post-harvest treated for 24 and 72h with gaseous ozone (30μL/L). Skin anthocyanin and flavanol extractability was assessed during maceration (6, 24, 48, 96, 168 and 240h) using a wine-like solution...
August 2017: Food Research International
https://www.readbyqxmd.com/read/28610733/comparison-of-fortified-sfursat-and-passito-wines-produced-from-fresh-and-dehydrated-grapes-of-aromatic-black-cv-moscato-nero-vitis-vinifera-l
#20
Carolina Ossola, Simone Giacosa, Fabrizio Torchio, Susana Río Segade, Alberto Caudana, Enzo Cagnasso, Vincenzo Gerbi, Luca Rolle
Moscato nero d'Acqui is an Italian aromatic black winegrape variety characterized by a low content of anthocyanins (mostly tri-substituted), a satisfactory content of high molecular mass tannins, and a fair amount of terpenes. The grapes were subjected to a postharvest dehydration process under controlled thermohygrometric conditions (16-18°C, 55-70 RH%, 0.6m/s air speed) with the aim to produce three different special wine types (fortified, sfursat, and passito) from fresh, partially dehydrated (27°Brix), and withered (36°Brix) grapes, respectively...
August 2017: Food Research International
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