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1. Effect of foliar seawater application on berry quality and ion distribution of ‘Kyoho’ grapevine yards

Author:
W.W. Zheng; H.Y. Xu; S.B. Hong; Y.B. Gao; K. Xu; Y.X. Zang
Source:
Agricultural water management 2019 v.226 pp. 105841
ISSN:
0378-3774
Subject:
Vitis; anions; antioxidants; bicarbonates; calcium; catalase; cations; chlorides; chlorophyll; color; crops; firmness; foliar spraying; grapes; irrigation; leaves; magnesium; malondialdehyde; nitrates; peroxidase; potassium; proline; proteins; quantitative analysis; seawater; small fruits; sodium; soil quality; starch; sugars; total soluble solids; vegetative growth; vineyard soils; vineyards
Abstract:
... Extensive research has been conducted over the years to investigate the diverse effects of seawater on many crop plants either by irrigation or foliar spray in an attempt to enhance the yield and quality. The purpose of this study was to quantitatively determine the effects of foliar seawater application on berry quality and ion distribution of ‘Kyoho’ grape vineyards. A field experiment was conduc ...
DOI:
10.1016/j.agwat.2019.105841

2. High-efficiency cell disruption and astaxanthin recovery from Haematococcus pluvialis cyst cells using room-temperature imidazolium-based ionic liquid/water mixtures

Author:
Sun-A Choi; You-Kwan Oh; Jiye Lee; Sang Jun Sim; Min Eui Hong; Ji-Yeon Park; Min-Sik Kim; Seung Wook Kim; Jin-Suk Lee
Source:
Bioresource technology 2019 v.274 pp. 120-126
ISSN:
0960-8524
Subject:
Haematococcus pluvialis; ambient temperature; anions; antioxidants; astaxanthin; energy conservation; hexane; ionic liquids; lipids; sulfates
Abstract:
... Energy-saving, high-efficiency cell disruption is a critical step for recovery of thermolabile antioxidant astaxanthin from Haematococcus pluvialis cyst cells of rigid cell-wall structure. In this study, as room-temperature green solvents, 10 types of 1-ethyl-3-methylimidazolium ([Emim])-based ionic liquids (ILs) were compared and evaluated for their abilities to disrupt H. pluvialis cyst cells fo ...
DOI:
10.1016/j.biortech.2018.11.082

3. Antioxidant plant metabolites affect leaching of mineral elements from Callovo‐Oxfordian clays

Author:
D. Ubersfeld; C. Leyval; P. O. Redon; C. Mustin
Source:
European journal of soil science 2018 v.69 no.2 pp. 348-359
ISSN:
1351-0754
Subject:
air; aluminum; anions; antioxidants; argillite; calcium; carvacrol; cations; chlorine; clay; iron; leachates; leaching; linalool; magnesium; metabolites; nitrates; oxidation; phosphates; potassium; pyrite; root exudates; soil; soil minerals; sulfates; thymol; weathering
Abstract:
... Minerals excavated during industrial activities are stored on the soil surface, exposed to weathering, which leads to the initial development of soil. Plants contribute to soil mineral weathering, mainly by producing acidic or complexing root exudates. In addition, many plants produce antioxidant compounds and phenolic substances that could also contribute to mineral transformation processes, but ...
DOI:
10.1111/ejss.12505

4. Effects of imidazolium-based ionic liquids with different anions on wheat seedlings

Author:
Zhonglin Chen; Qian Zhou; Wei Guan; Jie Wang; Yue Li; Ning Yu; Jie Wei
Source:
Chemosphere 2018 v.194 pp. 20-27
ISSN:
0045-6535
Subject:
anions; antioxidants; chloroplasts; enzyme activity; hydroponics; ionic liquids; leaves; malondialdehyde; metabolism; mitochondria; plant growth; roots; rough endoplasmic reticulum; seedlings; shoots; toxicity; transmission electron microscopes; transmission electron microscopy; wheat
Abstract:
... The effects of five imidazolium ionic liquids with different anions were studied in hydroponically grown wheat seedlings at concentrations of 50, 100, 150, 200, 250, and 300 mg L⁻¹. The results showed that shoots and roots grew shorter and dry weight decreased with increasing concentrations of ionic liquids. Moreover, the antioxidant enzyme activities decreased and malondialdehyde (MDA) content wa ...
DOI:
10.1016/j.chemosphere.2017.11.145

5. Rhodobacter sp. Rb3, an aerobic anoxygenic phototroph which thrives in the polyextreme ecosystem of the Salar de Huasco, in the Chilean Altiplano

Author:
Vilma Pérez; Cristina Dorador; Verónica Molina; Carolina Yáñez; Martha Hengst
Source:
Antonie van Leeuwenhoek 2018 v.111 no.8 pp. 1449-1465
ISSN:
0003-6072
Subject:
DNA repair; Rhodobacter; altitude; anions; antibiotic resistance; antibiotic resistance genes; antioxidants; basins; biofilm; chemotaxis; cold stress; ecosystems; heat stress; interspersed repetitive sequences; metalloids; models; osmotic stress; oxidative stress; photooxidation; photosynthetic bacteria; pumps; salinity; solar radiation; species diversity; sporulation; stress tolerance; surveys; temperature; toxicity
Abstract:
... The Salar de Huasco is an evaporitic basin located in the Chilean Altiplano, which presents extreme environmental conditions for life, i.e. high altitude (3800 m.a.s.l.), negative water balance, a wide salinity range, high daily temperature changes and the occurrence of the highest registered solar radiation on the planet (> 1200 W m⁻²). This ecosystem is considered as a natural laboratory to unde ...
DOI:
10.1007/s10482-018-1067-z

6. Thermodynamics of radical scavenging of symmetric carotenoids and their charged species

Author:
Peter Poliak; Peter Škorňa; Erik Klein; Vladimír Lukeš
Source:
Food chemistry 2018 v.268 pp. 542-549
ISSN:
0308-8146
Subject:
anions; antioxidant activity; antioxidants; astaxanthin; canthaxanthin; carbon; cations; dissociation; electron transfer; endothermy; enthalpy; heat production; hydrogen; solvents
Abstract:
... For nine symmetric natural carotenoids, a comprehensive thermodynamics study of processes associated with their radical scavenging activity is proposed. We have investigated the hydrogen atom transfer (HAT) from the parent carotenoid, mono-radical species, radical cations and radical anions. Electron transfer and proton transfer reactions were also studied. Terminal units and carbon atoms in their ...
DOI:
10.1016/j.foodchem.2018.06.063

7. Antioxidant intercalated hydrocalumite as multifunction nanofiller for Poly(propylene): Synthesis, thermal stability, light stability, and anti-migration property

Author:
Qian Zhang; Qian Jiao; Fabrice Leroux; Pinggui Tang; Dianqing Li; Yongjun Feng
Source:
Polymer Degradation and Stability 2017 v.140 pp. 9-16
ISSN:
0141-3910
Subject:
2,2-diphenyl-1-picrylhydrazyl; Fourier transform infrared spectroscopy; X-ray diffraction; anions; antioxidant activity; antioxidants; calcium; cations; coprecipitation; hydroxides; oxidation; photostability; polypropylenes; propylene; thermal stability
Abstract:
... One of the major issues for poly(propylene) PP concerns its protection towards oxidative phenomena resulting in polymer failure. Using known anti-oxidant (AO), Irganox 1425, an original approach is taking advantage of the counterion, cations Ca2+, in building hydrocalumite inorganic sheets, and concomitantly providing the AO anions to be immobilized within an inorganic host structure. Through the ...
DOI:
10.1016/j.polymdegradstab.2017.04.012

8. Biologically friendly room temperature ionic liquids and nanomaterials for the development of innovative enzymatic biosensors

Author:
D. Zappi; R. Caminiti; G.M. Ingo; C. Sadun; C. Tortolini; M.L. Antonelli
Source:
Talanta 2017 v.175 pp. 566-572
ISSN:
0039-9140
Subject:
alcohol dehydrogenase; alcohols; ambient temperature; anions; antioxidants; beverages; biosensors; carbon nanotubes; carboxylic ester hydrolases; cations; choline; cost effectiveness; extra-virgin olive oil; food matrix; glassy carbon electrode; glucose; glucose oxidase; glycine (amino acid); graphene; histidine; ionic liquids; nanogold; phenylalanine; portable equipment; serine; silver
Abstract:
... Main purpose of the work is assembling, testing and optimizing new disposable amperometric biosensors to analyze substances in different application fields as agribusiness, clinical chemistry and environment protection.Many kinds of modified electrodes have been prepared and tested to build portable devices to analyze quickly many analytes, in a simple and cost-effective manner.Bare electrodes of ...
DOI:
10.1016/j.talanta.2017.07.081

9. Fractionation of technical lignin with ionic liquids as a method for improving purity and antioxidant activity

Author:
Maris Lauberts; Olena Sevastyanova; Jevgenija Ponomarenko; Tatjana Dizhbite; Galina Dobele; Alexandr Volperts; Liga Lauberte; Galina Telysheva
Source:
Industrial crops and products 2017 v.95 pp. 512-520
ISSN:
0926-6690
Subject:
1-propanol; 2,2-diphenyl-1-picrylhydrazyl; acetates; anions; antioxidant activity; antioxidants; assays; byproducts; cations; chromatography; electron paramagnetic resonance spectroscopy; fractionation; ionic liquids; lignin; methanol; processing chemistry; pyrolysis; wood
Abstract:
... Alder soda lignin, a by-product of the chemical processing of black alder wood, was fractionated using ionic liquids (ILs) based on the 1-buthyl-3-methylimidazolium [Bmim] cation and the following anions: chloride ([Bmim]Cl), dimethylphosphate ([Bmim]Me2PO4), acetate ([Bmim]OAc) and tosylate ([Bmim]OTs). The aim was to obtain lignin fractions of improved purity for further application as antioxida ...
DOI:
10.1016/j.indcrop.2016.11.004

10. Growth inhibition and efficiency of the antioxidant system in spring barley and common radish grown on soil polluted ionic liquids with iodide anions

Author:
Robert Biczak; Martyna Śnioszek; Arkadiusz Telesiński; Barbara Pawłowska
Source:
Ecotoxicology and environmental safety 2017 v.139 pp. 463-471
ISSN:
0147-6513
Subject:
seedlings; radishes; roots; polluted soils; oxidative stress; shoots; spring barley; soil pollution; Hordeum vulgare; biomarkers; hydrogen peroxide; malondialdehyde; iodides; anions; photosynthesis; peroxidase; superoxide dismutase; growth retardation; ionic liquids; pigments; catalase; phytotoxicity; edaphic factors; Raphanus sativus; chlorophyll; vegetation
Abstract:
... Ionic liquids (ILs) constitute a huge group of substances that are increasingly common in the commercial use. This situation may lead to the contamination of the soil environment which being the basic of plants vegetation. This paper presents the effect of four ILs with I- anion on the growth and development of spring barley (Hordeum vulgare) and common radish (Raphanus sativus L. subvar. radicula ...
DOI:
10.1016/j.ecoenv.2017.02.016

11. Unveiling the compositional variety of cardiolipins in Rhodobacter sphaeroides by liquid chromatography with electrospray ionization and multistage collision-induced dissociation mass spectrometry

Author:
Sara Granafei; Ilario Losito; Massimo Trotta; Angela Agostiano; Francesco Palmisano; Tommaso R. I. Cataldi
Source:
Analytical and bioanalytical chemistry 2017 v.409 no.21 pp. 5007-5018
ISSN:
1618-2642
Subject:
Rhodobacter sphaeroides; anions; antioxidants; bacteria; carbon; cardiolipins; carotenoids; dissociation; electrospray ionization mass spectrometry; glycerol; ionization; isomers; membrane fluidity; oxidation; reversed-phase liquid chromatography; spectrometers
Abstract:
... Cardiolipins (CL) contained in the lipid extracts of the photosynthetic bacterium Rhodobacter sphaeroides (strain R26) were systematically characterized by reversed-phase liquid chromatography coupled to electrospray ionization mass spectrometry, performed in single (MS), tandem (MS/MS) and sequential (MS³) modes using a linear ion trap mass spectrometer. The total number of carbon atoms and C=C b ...
DOI:
10.1007/s00216-017-0444-1

12. Salicylic acid and phenolic compounds under cadmium stress in cucumber plants (Cucumis sativus L.)

Author:
Jiri Simek; Jiri Tuma; Vlastimil Dohnal; Karel Musil; Zuzana Ducaiová
Source:
Acta physiologiae plantarum 2016 v.38 no.7 pp. 172
ISSN:
0137-5881
Subject:
Cucumis sativus; aerial parts; anions; antioxidants; biomass production; cadmium; chlorides; chlorosis; cucumbers; fruits; heavy metals; leaves; phenol; polluted soils; roots; salicylic acid; sulfates; toxicity
Abstract:
... In this pot experiment, cucumbers (Cucumis sativus L.) were grown in a model soil contaminated by three different concentrations of cadmium (40, 160, and 320 mg.kg⁻¹) with different accompanied anions (Cl⁻, SO₄ ²⁻). In all variants, the most Cd (90 %) was accumulated in the roots, but higher content in the case of Cl⁻. The distribution of Cd in various cucumber organs was as follows: root > stem > ...
DOI:
10.1007/s11738-016-2192-9

13. An electrochemical DNA biosensor for evaluating the effect of mix anion in cellular fluid on the antioxidant activity of CeO2 nanoparticles

Author:
Yanwu Zhai; Yan Zhang; Fei Qin; Xin Yao
Source:
Biosensors & bioelectronics 2015 v.70 pp. 130-136
ISSN:
0956-5663
Subject:
hydroxyl radicals; cerium; sulfates; DNA; ceric oxide; bicarbonates; chlorides; electrochemistry; anions; phosphates; death; nanoparticles; antioxidant activity; biosensors
Abstract:
... CeO2 nanoparticles are of particular interest as a novel antioxidant for scavenging free radicals. However, some studies showed that they could cause cell damage or death by generating reactive oxygen species (ROS). Up to now, it is not well understood about these paradoxical phenomena. Therefore, many attentions have been paid to the factors that could affect the antioxidant activity of CeO2 nano ...
DOI:
10.1016/j.bios.2015.03.030

14. Biochemical and gene expression effects of 1-alkyl-3-methylimidazolium tetrafluoroborate on Vibrio qinghaiensis sp.-Q67

Author:
ZhenYang Yu; Jing Zhang; ShuShen Liu
Source:
Journal of hazardous materials 2015 v.300 pp. 483-492
ISSN:
0304-3894
Subject:
NAD (coenzyme); Vibrio; anions; antioxidants; bioactive properties; catalase; drugs; gene expression; genes; luciferase; luminescence; salts; superoxide dismutase
Abstract:
... Applications of 1-alkyl-3-methylimidazolium salts ([amim]X) in pharmaceuticals call for studies on the biological effects. Previously, [amim]Cl and [amim]Br caused time-dependent stimulatory effects on Vibrio qinghaiensis sp.-Q67 (Q67). Further studies are still needed to answer the question whether [amim]X with other anions have similar effects, and to explain such stimulatory effects. Here, effe ...
DOI:
10.1016/j.jhazmat.2015.07.045

15. Ameliorative Effect of Resveratrol Against Fluoride-Induced Alteration of Thyroid Function in Male Wistar Rats

Author:
Chaitali Sarkar; Sudipta Pal
Source:
Biological trace element research 2014 v.162 no.1-3 pp. 278-287
ISSN:
0163-4984
Subject:
anions; antioxidants; drinking water; enzyme activity; functional status; groundwater; iodide peroxidase; males; nucleic acids; poisoning; protective effect; rats; resveratrol; sodium fluoride; thyroid function; thyroid gland; thyroid hormones; toxicity
Abstract:
... Resveratrol (3,4,5-trihydroxystilbene), a polyphenol and well-known natural antioxidant has been evaluated for its protective effect against fluoride-induced metabolic dysfunctions in rat thyroid gland. Fluoride, the most abundant anions present in groundwater throughout the world, creates a major problem in safe drinking water and causes metabolic, structural, and functional injuries in different ...
DOI:
10.1007/s12011-014-0108-3

16. HEPES-involved hydrothermal synthesis of Fe₃O₄ nanoparticles and their biological application

Author:
Hui Li; Zhong Lu; Gang Cheng; Kaifeng Rong; Fengxi Chen; Rong Chen
Source:
RSC advances 2014 v.5 no.7 pp. 5059-5067
ISSN:
2046-2069
Subject:
anions; antibacterial properties; antioxidants; ferrous chloride; gold; iron; magnetite; nanocomposites; nanogold; nanoparticles; nanosilver; oxidation; silver
Abstract:
... A simple one-step hydrothermal route was developed for the synthesis of magnetite (Fe₃O₄) nanoparticles in HEPES solution, using FeCl₂ as the Fe(ii) precursor. It was found that HEPES played an important role in the fabrication of Fe₃O₄ nanoparticles, where HEPES could act as a weak antioxidant to prevent the complete oxidation of Fe(ii) to Fe(iii). The possible formation mechanism of HEPES-coated ...
DOI:
10.1039/c4ra12536c

17. Imidiazolium based ionic liquids: Effects of different anions and alkyl chains lengths on the barley seedlings

Author:
Marina Cvjetko Bubalo; Karla Hanousek; Kristina Radošević; Višnja Gaurina Srček; Tamara Jakovljević; Ivana Radojčić Redovniković
Source:
Ecotoxicology and environmental safety 2014 v.101 pp. 116-123
ISSN:
0147-6513
Subject:
chemical concentration; barley; Hordeum vulgare; bromine; enzymes; lipid peroxidation; reactive oxygen species; early development; cations; seedlings; chemical structure; anions; toxicity; photosynthesis; enzyme activity; ionic liquids; oxidative stress
Abstract:
... We studied the effects of five imidiazolium based ionic liquids with different anions and length of alkyl chains linked to imidazolium ring on the early development of barley (Hordeum vulgare). The inhibitory effect depends on the ionic liquids concentration and chemical structure, whereby the most toxic one was [C10mim][Br], followed by [C7mim][Br], [C4mim][Br], [C4mim][CH3CO2] and [C4mim][BF4]. ...
DOI:
10.1016/j.ecoenv.2013.12.022

18. Understanding the Role of Cholinium Carboxylate Ionic Liquids in PEG-Based Aqueous Biphasic Systems

Author:
Mourão Teresa; Tomé Liliana C.; Florindo Catarina; Rebelo Luís Paulo N.; Marrucho Isabel M.
Source:
ACS sustainable chemistry 2014 v.2 no.10 pp. 2426-2434
ISSN:
2168-0485
Subject:
anions; antioxidants; biodegradability; citrates; hydroquinone; ionic liquids; molecular weight; oxalates; polyethylene glycol; succinic acid
Abstract:
... This work aims at exploring new sustainable separation processes based on ionic liquids. Aqueous biphasic systems (ABS) based on poly(ethylene glycol) (PEG) with low molecular weight (600 and 4000 g mol–¹) and cholinium-based ionic liquids and salts containing anions derived from carboxylic acids (oxalate, malonate, succinate, l-malate, fumarate, glutarate and citrate), available in natural compou ...
DOI:
10.1021/sc500444w

19. Electroanalytical Evaluation of Antioxidant Activity of Cerium Oxide Nanoparticles by Nanoparticle Collisions at Microelectrodes

Author:
Sardesai Naimish P.; Andreescu Daniel; Andreescu Silvana
Source:
Journal of the American Chemical Society 2013 v.135 no.45 pp. 16770-16773
ISSN:
1520-5126
Subject:
screening; monitoring; hydrogen peroxide; ceric oxide; superoxide dismutase; models; electrochemistry; anions; cost effectiveness; nanoparticles; antioxidant activity; spectroscopy; oxygen
Abstract:
... We describe a simple, cost-effective and rapid electrochemical screening approach to evaluate antioxidant activity of cerium oxide nanoparticles (CeO₂ NPs) by single nanoparticle collision at microelectrodes. The method is based on direct monitoring of the interaction between a Pt microelectrode and surface bound superoxo and peroxo anions of CeO₂ NPs (Ce-O₂–/O₂²–) formed upon exposure to H₂O₂, se ...
DOI:
10.1021/ja408087s

20. The effect of serum albumin, surfactant and their mixture on the reduction of a cobalt(III) complex by ascorbic acid

Author:
Tapas Majumdar; Debipreeta Bhowmik; Arjama Kundu; Somnath Dasmandal; Ambikesh Mahapatra
Source:
Colloids and Surfaces A: Physicochemical and Engineering Aspects 2013 v.436 pp. 185-192
ISSN:
0927-7757
Subject:
anions; antioxidants; ascorbic acid; binding sites; bovine serum albumin; cobalt; colloids; pH; spectroscopy; surfactants; urea
Abstract:
... Kinetic investigations on the reduction of CoIII-complex by a biologically active antioxidant molecule, ascorbic acid in a buffer medium of pH 9.0 have been performed using spectroscopic techniques. The reaction has been carried out in presence of a protein, bovine serum albumin (BSA), n-cetyltrimethylammonium bromide (CTAB) and their mixtures. The reaction rate changes remarkably on addition of p ...
DOI:
10.1016/j.colsurfa.2013.06.008