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https://www.readbyqxmd.com/read/29682153/antioxidant-and-anti-inflammatory-effects-of-blueberry-anthocyanins-on-high-glucose-induced-human-retinal-capillary-endothelial-cells
#1
Wuyang Huang, Zheng Yan, Dajing Li, Yanhong Ma, Jianzhong Zhou, Zhongquan Sui
Blueberries possess abundant anthocyanins, which benefit eye health. The purpose of this study was to explore the protective functional role of blueberry anthocyanin extract (BAE) and its predominant constituents, malvidin (Mv), malvidin-3-glucoside (Mv-3-glc), and malvidin-3-galactoside (Mv-3-gal), on high glucose- (HG-) induced injury in human retinal capillary endothelial cells (HRCECs). The results showed that BAE, Mv, Mv-3-glc, and Mv-3-gal enhanced cell viability ( P < 0.05 versus the HG group at 24 h); decreased the reactive oxygen species (ROS, P < 0...
2018: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/29668943/management-of-blueberry-maggot-with-high-temperatures
#2
Charles Vincent, Pierre Lemoyne, Jean Lafond
High temperatures were investigated to manage blueberry maggot (Rhagoletis mendax Curran; Diptera: Tephritidae) in field and postharvest situations. To estimate lethal combinations of high temperatures/duration of exposure, blueberry maggot pupae were immersed in water at various temperatures during either 1 or 30 s in the laboratory. Treatments such as 70°C (1 s) or 55°C (30 s) caused 100% mortality of blueberry maggot pupae. In a lowbush blueberry field, soil temperatures at 0, 1, 2, 3, 4, and 5 cm depth were measured with thermocouples following the passage of a flamethrower attached to a tractor in the fall...
April 13, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29668869/multistate-comparison-of-attractants-and-the-impact-of-fruit-development-stage-on-trapping-drosophila-suzukii-diptera-drosophilidae-in-raspberry-and-blueberry
#3
Benjamin D Jaffe, Alina Avanesyan, Harit K Bal, Yan Feng, Joshua Grant, Matthew J Grieshop, Jana C Lee, Oscar E Liburd, Elena Rhodes, Cesar Rodriguez-Saona, Ashfaq A Sial, Aijun Zhang, Christelle Guédot
Spotted-wing drosophila, Drosophila suzukii Matsumura (Diptera: Drosophilidae), is an invasive pest of soft-skinned fruits across the globe. Effective monitoring is necessary to manage this pest, but suitable attractants are still being identified. In this study, we combined lures with fermenting liquid baits to improve D. suzukii trapping specificity and attractiveness. We also measured the efficiency and specificity of baits/lures during different times of the season; the reproductive status of females among baits/lures; and the effects of locations and crop type on these response variables...
April 14, 2018: Environmental Entomology
https://www.readbyqxmd.com/read/29662847/impact-of-various-factors-on-color-stability-of-fresh-blueberry-juice-during-storage
#4
Hyo-Nam Song, So-Ae Ji, Hye-Rim Park, Ho-Hyoen Kim, Christer Hogstrand
The attractive purple color of blueberries ( Vaccinium spp.) is unstable and susceptible to degradation during food processing and storage. The effects of various factors on the color stability of fresh blueberry juice were investigated. Total soluble solid content, pH, and total anthocyanin content were measured. Heating at 30°C and 60°C for 300 min did not influence the color stability, but heating at 100°C drastically decreased it by 33.0%. Sugars decreased color in a concentration-dependent manner. However, glucose and galactose had significantly protective effects on the color disruption than fructose, maltose, and sucrose...
March 2018: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29662845/suppressive-effects-of-vaccinium-angustifolium-root-extract-via-down-regulation-of-activation-of-syk-lyn-and-nf-%C3%AE%C2%BAb-in-fc%C3%A9-ri-mediated-allergic-reactions
#5
Sun-Yup Shim
Vaccinium angustifolium , reported as the lowbush blueberry, has a rich polyphenolic content with which biological activities have been closely associated. In this study, the effects of V. angustifolium root extract (VAE) on the anti-FcɛRI α chain antibody (CRA-1)-induced FcɛRI-mediated signaling factors, protein tyrosine kinases (PTK), Lyn, Syk, and nuclear factor kappa-B cells (NF-κB) in KU812F cells were investigated. The total phenolic content of VAE was found to be 170±1.9 mg gallic acid equivalents/g...
March 2018: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29662448/berry-phenolic-antioxidants-implications-for-human-health
#6
REVIEW
Beata Olas
Antioxidants present in the diet may have a significant effect on the prophylaxis and progression of various diseases associated with oxidative stress. Berries contain a range of chemical compounds with antioxidant properties, including phenolic compounds. The aim of this review article is to provide an overview of the current knowledge of such phenolic antioxidants, and to discuss whether these compounds may always be natural gifts for human health, based on both in vitro and in vivo studies. It describes the antioxidant properties of fresh berries (including aronia berries, grapes, blueberries, sea buckthorn berries, strawberries and other berries) and their various products, especially juices and wines...
2018: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29660845/effects-of-different-acyl-gellan-gums-on-the-rheological-properties-and-colloidal-stability-of-blueberry-cloudy-juice
#7
Xue-Jiao Xu, Yan-Hua Li, Sheng Fang, Jie Chen, Ying Yuan, Jing Gan, Zui Tao, Yue-Cheng Meng
In this study, gellan gums with different acyl contents were prepared, and their effects on blueberry cloudy juices were compared. The rheological properties, stability coefficients, sedimentations, color parameters and particle size distributions of blueberry cloudy juices with 0.035% (w/w) of gellan gum were measured. As the acyl content increased, the viscosity increased, and the sedimentation and stability coefficient values decreased. Gellan gums with higher acyl contents provided better beverage stabilizing capabilities through stricter enforcement of the molecular associations...
April 16, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29660781/effects-of-site-and-cultivar-on-consumer-acceptance-of-pomegranate
#8
John M Chater, Donald J Merhaut, Zhenyu Jia, Mary Lu Arpaia, Peggy A Mauk, John E Preece
Pomegranate (Punica granatum L.) is an important fruit in many cultures. The fruit and juice have risen in popularity as it was discovered that pomegranate has relatively high antioxidant activity compared to most other fruits. In this study, six cultivars were utilized to determine consumer acceptance compared to the industry standard, 'Wonderful,' which comprises 90% to 95% of commercial production in the United States. Fruit were sourced from 2 cultivar field trials, one in inland Riverside, California, and one in coastal Ventura County, California...
April 16, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29642454/application-of-deep-learning-architectures-for-accurate-and-rapid-detection-of-internal-mechanical-damage-of-blueberry-using-hyperspectral-transmittance-data
#9
Zhaodi Wang, Menghan Hu, Guangtao Zhai
Deep learning has become a widely used powerful tool in many research fields, although not much so yet in agriculture technologies. In this work, two deep convolutional neural networks (CNN), viz. Residual Network (ResNet) and its improved version named ResNeXt, are used to detect internal mechanical damage of blueberries using hyperspectral transmittance data. The original structure and size of hypercubes are adapted for the deep CNN training. To ensure that the models are applicable to hypercube, we adjust the number of filters in the convolutional layers...
April 7, 2018: Sensors
https://www.readbyqxmd.com/read/29607443/therapeutic-effect-of-blueberry-extracts-for-acute-myeloid-leukemia
#10
Colin M McGill, Timothy J Brown, Yuan-Yin Cheng, Lindsey N Fisher, Sriram S Shanmugavelandy, Sally J Gustafson, Kriya L Dunlap, Mary Ann Lila, Mark Kester, Paul T Toran, David F Claxton, Brian M Barth
Acute myeloid leukemia (AML) is an aggressive hematological malignancy with high incidence in the aging population. In addition, AML is one of the more common pediatric malignancies. Unfortunately, both of these patient groups are quite sensitive to chemotherapy toxicities. Investigation of blueberries specifically as an anti-AML agent has been limited, despite being a prominent natural product with no reported toxicity. In this study, blueberry extracts are reported for the first time to exert a dietary therapeutic effect in animal models of AML...
January 2018: International Journal of Biopharmaceutical Sciences
https://www.readbyqxmd.com/read/29604491/uv-c-inactivation-of-foodborne-bacterial-and-viral-pathogens-and-surrogates-on-fresh-and-frozen-berries
#11
Sophie Butot, Frédérique Cantergiani, Mireille Moser, Julie Jean, Anthony Lima, Lise Michot, Thierry Putallaz, Thomas Stroheker, Sophie Zuber
Outbreaks of foodborne illness associated with berries often involve contamination with hepatitis A virus (HAV) and norovirus but also bacteria such as Escherichia coli O157:H7 and parasites such as Cyclospora caytanensis. We evaluated the applicability of UV-C to the inactivation of pathogens on strawberries, raspberries and blueberries. Our three-step approach consisted of assessing the chemical safety of UV-C-irradiated berries, evaluating the sensory quality after UV-C treatment and finally studying the inactivation of the target microorganisms...
March 26, 2018: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/29603745/effect-of-postharvest-application-of-ethylene-on-phenolic-acids-and-anthocyanins-profile-in-three-blueberry-cultivars-vaccinium-corymbosum
#12
Daniela V T A Costa, Domingos P F de Almeida, Manuela Pintado
BACKGROUND: Blueberry is a fruit that has been extensively studied for its health benefits, mainly due to its high antioxidant activity. There are a high correlation between antioxidant activity and total anthocyanins and phenolic compounds. The postharvest treatment using ethylene may be a factor affecting the anthocyanins content. The objective of this work was to analyze the postharvest treatment using ethylene on the anthocyanins profile during the storage of blueberries and phytochemical composition of 'Bluecrop', 'Goldtraube' and 'Ozarkblue'...
March 30, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29590429/photosynthetic-limitation-as-a-factor-influencing-yield-in-highbush-blueberries-vaccinium-corymbosum-grown-in-a-northern-european-environment
#13
Antonios Petridis, Jeroen van der Kaay, Elina Chrysanthou, Susan McCallum, Julie Graham, Robert D Hancock
Published evidence indicates that nearly 60% of blueberry-producing countries experience yield instability. Yield is a complex trait determined by genetic and environmental factors. Here, using physiological and biochemical approaches, we tested the hypothesis that yield instability results from year-to-year environmental variation that limits carbon assimilation, storage and partitioning. Data indicate that fruit development depends primarily on the daily production of non-structural carbohydrates by leaves and there is no accumulation of a starch buffer to allow continuous ripening under conditions limiting for photosynthesis...
March 24, 2018: Journal of Experimental Botany
https://www.readbyqxmd.com/read/29587414/identification-of-blueberry-mirnas-and-their-targets-based-on-high-throughput-sequencing-and-degradome-analyses
#14
Guangping Li, Yun Wang, Xiaoming Lou, Hailing Li, Changqing Zhang
miRNAs are important regulators of plant gene expression. To better characterize their functions, we applied high-throughput sequencing and degradome analyses to investigate three blueberry ( Vaccinium ashei ) tissues. A total of 127 known and 101 novel miRNAs were identified. Moreover, 141 targets for 42 known and 19 novel miRNAs were experimentally validated by degradome sequencing. A functional analysis of these miRNA targets revealed they were associated with diverse biological activities and several pathways, e...
March 26, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29580514/addition-of-sucrose-during-the-blueberry-heating-process-is-good-or-bad-evaluating-the-changes-of-anthocyanins-anthocyanidins-and-the-anticancer-ability-in-hepg-2-cells
#15
Fang Zhou, Tao Wang, Bolin Zhang, Hongfei Zhao
The objectives of this study were to evaluate the role of sucrose on the stability of anthocyanins during heating and the anticancer effects of anthocyanins/anthocyanidins on HepG-2 cells. The anthocyanins extract was heated at 70 °C, 100 °C, and 120 °C in the presence of 5%, 10%, and 20% sucrose. Total anthocyanin content, anthocyanin/anthocyanidin species, and the ability to induce HepG-2 cell apoptosis were evaluated. The results indicated that the total anthocyanin content decreased during heating at temperatures above 70 °C...
May 2018: Food Research International
https://www.readbyqxmd.com/read/29580503/encapsulation-of-purple-corn-and-blueberry-extracts-in-alginate-pectin-hydrogel-particles-impact-of-processing-and-storage-parameters-on-encapsulation-efficiency
#16
Jingxin Guo, M Monica Giusti, Gönül Kaletunç
Purple corn (PC) and blueberry (BB) extracts were encapsulated in alginate-pectin hydrogel particles to protect anthocyanins (ACNs) from degradation. Combinations of alginate to pectin ratios at 82 to 18% and 43 to 57% and total gum concentrations (TGC) at 2.2% and 2.8% TGC were prepared to encapsulate both PC and BB ACN. The alginate-pectin hydrogel particles containing PC or BB extracts were produced by dripping solution into pH 1.2 buffer. Blueberry extract encapsulation efficiency was significantly higher than that of purple corn extract due to ACN chemical structure differences and the compatibility between the ACN structures and alginate-pectin hydrogel structure at the low pH environment...
May 2018: Food Research International
https://www.readbyqxmd.com/read/29579903/berries-extracts-as-natural-antioxidants-in-meat-products-a-review
#17
José Manuel Lorenzo, Mirian Pateiro, Rubén Domínguez, Francisco J Barba, Predrag Putnik, Danijela Bursać Kovačević, Avi Shpigelman, Daniel Granato, Daniel Franco
The aim was to evaluate antioxidants from berries as replacement food additives for inhibition of lipid and protein oxidation in meat and meat products, since meats are highly susceptible to oxidation. Oxidation can be delayed/retarded by synthetic antioxidants with phenolic structures (e.g. butylated hydroxytoluene). However, new natural alternatives are needed for synthetic antioxidants due to the controversy regarding their possible negative health effects and consumers' demand for more 'natural' food additives...
April 2018: Food Research International
https://www.readbyqxmd.com/read/29562759/total-quality-index-of-ultrasound-treated-blueberry-and-cranberry-juices-and-nectars
#18
Anet Režek Jambrak, Marina Šimunek, Ilija Djekic
The influence of ultrasound in combination with elevated temperature (thermosonication) is important in inactivation effects on microorganisms. However, overall quality of these products can be deteriorated. The aim of this study was to examine the use of a single quality index in evaluating effects of ultrasound technology on quality characteristics of blueberry and cranberry juices and nectars. For the purpose of this study based on 10 quality parameters, two mathematical models for calculating a single total quality index have been introduced...
January 1, 2018: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/29559576/nutrient-dependent-impact-of-microbes-on-drosophila-suzukii-development
#19
XiaoLi Bing, Joseph Gerlach, Gregory Loeb, Nicolas Buchon
Drosophila suzukii Matsumura is an invasive species of vinegar fly that has become a prominent pest of berries and other soft-skinned fruits. Unlike most other Drosophila species, female D. suzukii flies lay their eggs in ripening and ripe fruits and larvae develop within the fruit. To understand how D. suzukii larvae utilize ripe and ripening fruits, which usually have low levels of protein, we investigated the microbiota of field-captured and laboratory-reared D. suzukii flies and further examined the combined influence of diet and microbes on host fitness...
March 20, 2018: MBio
https://www.readbyqxmd.com/read/29558681/evaluation-of-gaseous-chlorine-dioxide-for-the-inactivation-of-tulane-virus-on-blueberries
#20
David H Kingsley, Rafael E Pérez-Pérez, Brendan A Niemira, Xuetong Fan
To determine the effectiveness of gaseous chlorine dioxide (gClO2 ) against a human norovirus surrogate on produce, gClO2 was generated and applied to Tulane virus-coated blueberries in a 240 ml-treatment chamber. gClO2 was produced by an acidifying sodium chlorite solution. Initial assessments indicated that blueberries treated with gClO2 generated from ≤1 mg acidified sodium chlorite in the small chamber appeared unaffected while gClO2 generated from ≥10 mg of acidified sodium chlorite solution altered the appearance and quality of the blueberries...
February 1, 2018: International Journal of Food Microbiology
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