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1. Retronasal Habituation: Characterization and Impact on Flavor Perception Using Time-Intensity

Author:
Pellegrino, Robert; Atchley, Addison; Ali, Simrah; Shingleton, Joel; Luckett, Curtis R.
Source:
Chemosensory perception 2020 v.13 no.1 pp. 1-10
ISSN:
1936-5802
Subject:
citric acid,   etc   ; beverages; flavor; habituation; humans; odors; oils; smell; sucrose;     Show all 9 Subjects
Abstract:
... INTRODUCTION: Olfactory habituation results from prolonged exposure to an odor, leading to perceptual changes defined by several characteristics. To date, human habituation research has focused on orthonasal olfaction which is perceived externally while ignoring internal routes of odor perception related to flavor. In our study, we conducted two experiments to characterize retronasal olfactory hab ...
DOI:
10.1007/s12078-018-9254-x

2. Carbon dots with concentration-modulated fluorescence: Aggregation-induced multicolor emission

Author:
Su, Ya; Xie, Zhigang; Zheng, Min
Source:
Journal of colloid and interface science 2020 v.573 pp. 241-249
ISSN:
0021-9797
Subject:
citric acid,   etc   ; carbon quantum dots; fluorescence; optical properties; pyrolysis; thiourea; zirconium;     Show all 7 Subjects
Abstract:
... Carbon dots (CDs) with concentration-modulated luminescence were obtained by pyrolysis of citric acid (CA) and thiourea (TU). CDs exhibit multi-colored emission by varying their concentrations. As a contrast, Zr-doped CDs (ZrCDs) were prepared from CA, TU and ZrCl₄ in a similar way. To our surprise, no concentration-dependent emission were observed in ZrCDs. Structural and optical characterization ...
DOI:
10.1016/j.jcis.2020.04.004

3. Chemical hydrolysis of oleuropein affected by the type of organic acid

Author:
Romero, Concepción; García, Pedro; Brenes, Manuel
Source:
Food chemistry 2020 v.316 pp. 126351
ISSN:
0308-8146
Subject:
citric acid,   etc   ; acetic acid; acid hydrolysis; debittering; in vitro studies; lactic acid; oleuropein; olives; pH; temperature;     Show all 10 Subjects
Abstract:
... The debittering of natural table olives is a very slow process. The effect of acetic, lactic and citric acids on the hydrolysis rate of oleuropein was studied in vitro and at pilot plant scale. The acid hydrolysis of oleuropein was faster with lactic and citric acids than acetic acid, running the experiments at the same pH of 3.8–4.0 units. The temperature exerted a high effect of the hydrolysis o ...
DOI:
10.1016/j.foodchem.2020.126351

4. Selective determination of 2,4,6-trinitrophenol by using a novel carbon nanoparticles as a fluorescent probe in real sample

Author:
Lai, Wenqiang; Guo, Jiaqing; Zheng, Nan; Nie, Yujing; Ye, Shuai; Tang, Dianping
Source:
Analytical and bioanalytical chemistry 2020 v.412 no.13 pp. 3083-3090
ISSN:
1618-2642
Subject:
citric acid,   etc   ; carbon nanoparticles; cysteine; detection limit; fluorescence; fluorescent dyes; fluorometry; nitrophenols; pollutants;     Show all 9 Subjects
Abstract:
... 2,4,6-Trinitrophenol (TNP) is widely used in our daily life; however, excessive use of TNP can lead to a large number of diseases. Therefore, it is necessary to find an effective method to detect TNP. Herein, the rapid fluorescence quenching by TNP was developed for the fluorometric determination of TNP in aqueous medium based on the internal filter effect. Nitrogen-sulfur–codoped carbon nanoparti ...
DOI:
10.1007/s00216-020-02558-z

5. Smart Removal of Dye Pollutants via Dark Adsorption and Light Desorption at Recyclable Bi₂O₂CO₃ Nanosheets Interface

Author:
Liu, Haijin; Chen, Min; Wei, Dandan; Ma, Yaqiang; Wang, Fengliang; Zhang, Qianxin; Shi, Jialu; Zhang, Hui; Peng, Jianbiao; Liu, Guoguang; Zhang, Shanqing
Source:
ACS applied materials & interfaces 2020 v.12 no.18 pp. 20490-20499
ISSN:
1944-8252
Subject:
citric acid,   etc   ; adsorbents; adsorption; chemical engineering; desorption; electrostatic interactions; methylene blue; nanosheets; pollutants; remediation; water treatment;     Show all 11 Subjects
Abstract:
... The adsorbents for water treatment and purification are commonly not recyclable because of the lack of a reagent-less “switch” to readily release the adsorbed compounds. Herein, the interface of Bi₂O₂CO₃ (BOC) nanosheets is designed, synthesized, and modified with citric acid, namely, modified Bi₂O₂CO₃ (m-BOC). The m-BOC is able to selectively adsorb methylene blue (MB) in the dark and the adsorbe ...
DOI:
10.1021/acsami.0c02848

6. Pretreated Sugarcane Bagasse with Citric Acid Applied in Enzymatic Hydrolysis

Author:
Gomes, Michelle Garcia; dos Santos, Renata Vidal; Barreto, Elisa da Silva; Baffi, Milla Alves; Gurgel, Leandro Vinicius Alves; Baêta, Bruno Eduardo Lobo; Pasquini, Daniel
Source:
Industrial biotechnology 2020 v.16 no.2 pp. 117-124
ISSN:
1931-8421
Subject:
citric acid,   etc   ; biotechnology; cellulose; enzymatic hydrolysis; enzymes; experimental design; glucose; hemicellulose; lignin; sugarcane bagasse; temperature; xylose;     Show all 12 Subjects
Abstract:
... The objective of the study was to evaluate the pretreatment of sugarcane bagasse (SCB) with diluted citric acid solution in a pressurized system and its behavior when submitted to enzymatic hydrolysis using the Cellic® CTec 3 enzyme complex, employing a Doehlert's experimental design (2³), with 5 central points (CP). The operating variables were temperature (T, °C), time (t, min) and percentage by ...
DOI:
10.1089/ind.2019.0039

7. Effect of citric acid on extracellular polymeric substances disruption and cell lysis in the waste activated sludge by pH regulation

Author:
Wu, Xuewei; Li, Xiaoming; Yang, Qi; Xu, Qiuxiang; Tao, Ziletao; Huang, Xiaoding; Wu, You; Tao, Lingjuan; Pi, Zhoujie; Chen, Zhuo; Wang, Dongbo
Source:
Bioresource technology 2020 v.302 pp. 122859
ISSN:
0960-8524
Subject:
citric acid,   etc   ; activated sludge; bound water; dewatering; pH; polymers; total suspended solids;     Show all 7 Subjects
Abstract:
... This paper investigated the effects of citric acid (CA) on extracellular polymer destruction and cell lysis in sludge at different initial pH by measuring capillary suction time (CST), extracellular polymeric substances (EPS) and intracellular bound water. The results indicated that under CA concentration at 0.05 g/g suspended solids (SS) and initial pH 4, the CST value decreased from 175.5 s to 1 ...
DOI:
10.1016/j.biortech.2020.122859

8. Efficacy of citric acid and sodium hypochlorite as disinfectants against Mycoplasma bovis

Author:
Mahdizadeh, Sara; Sawford, Kate; van Andel, Mary; Browning, Glenn F.
Source:
Veterinary microbiology 2020 v.243 pp. 108630
ISSN:
0378-1135
Subject:
citric acid,   etc   ; Mycoplasma bovis; bacteria; cattle; disinfectants; mastitis; pathogenicity; pathogens; pneumonia; sodium hypochlorite;     Show all 10 Subjects
Abstract:
... Mycoplasma bovis, a cattle pathogen of major economic importance across the globe, causes a range of diseases, including pneumonia and mastitis. Because of the limited options for effective treatment of these diseases, prevention and control are preferred to diagnosis and treatment. In this study, the efficacies of citric acid and sodium hypochlorite as disinfectants against M. bovis were tested u ...
DOI:
10.1016/j.vetmic.2020.108630

9. Optimization of textural and technological parameters using response surface methodology for the development of beef products for older consumers

Author:
Botinestean, Cristina; Hossain, Mohammad; Mullen, Anne M.; Auty, Mark A. E.; Kerry, Joseph P.; Hamill, Ruth M.
Source:
Journal of texture studies 2020 v.51 no.2 pp. 263-275
ISSN:
0022-4901
Subject:
citric acid,   etc   ; apples; beef; elderly; ingredients; mastication; red meat; response surface methodology; rice starch; texture;     Show all 10 Subjects
Abstract:
... Red meat has a tougher texture compared with many other food products, therefore consumption is often reduced among older adults. Acidic treatments had a positive effect on WBSF values (reduced the WBSF values from 23.35 N for control to 14.83 N), and texture parameters and a combination with apple fiber and rice starch may improve the health profile of a meat product with benefits for consumers, ...
DOI:
10.1111/jtxs.12467

10. Recyclable and Mechanically Robust Palm Oil-Derived Epoxy Resins with Reconfigurable Shape-Memory Properties

Author:
Mu, Shiling; Zhang, Yaqiong; Zhou, Jiangjun; Wang, Baoxia; Wang, Zhongkai
Source:
ACS sustainable chemistry & engineering 2020 v.8 no.13 pp. 5296-5304
ISSN:
2168-0485
Subject:
citric acid,   etc   ; biomass; catalysts; crosslinking; epoxides; mechanical properties; molecular weight; palm oils; polymers; resins; transesterification;     Show all 11 Subjects
Abstract:
... The development of sustainable epoxy resins from renewable biomass is gaining more and more attention. In most cases, chemically cross-linked biomass-derived epoxy resins are nonrecyclable. Here, mechanically strong and recyclable epoxy resins from palm oil that possess reconfigurable shape memory properties are developed. By converting palm oil-based methyl methacrylate monomers into epoxy monome ...
DOI:
10.1021/acssuschemeng.0c00443

11. A high-flux and anti-interference dual-functional membrane for effective removal of Pb(II) from natural water

Author:
Zhang, Yanhong; Feng, Yuefeng; Xiang, Qi; Liu, Fuqiang; Ling, Chen; Wang, Fenghe; Li, Yan; Li, Aimin
Source:
Journal of hazardous materials 2020 v.384 pp. 121492
ISSN:
0304-3894
Subject:
citric acid,   etc   ; drinking water; electrostatic interactions; graphene oxide; heavy metals; lead;     Show all 6 Subjects
Abstract:
... The development of high efficiency filter membranes, particularly those capable of removing trace heavy metals from drinking water sources, is a global challenge. In this study, a dual-functional membrane (PₘGₙ@PVDF) was successfully developed by doping graphene oxide (GO) and then depositing polydopamine (PDA). The pure water flux (Jw) was 188 LMH/bar and Pb(II) could be effectively removed in th ...
DOI:
10.1016/j.jhazmat.2019.121492

12. Microwave direct denitration for synthesis of Cu-Ce-Zr-O composite oxide and its characterization

Author:
Fukasawa, Tomonori; Nakamura, Riku; Ishigami, Toru; Fukui, Kunihiro
Source:
Powder technology 2020 v.362 pp. 26-31
ISSN:
0032-5910
Subject:
citric acid,   etc   ; X-ray diffraction; catalytic activity; copper; oxygen; powders; surface area;     Show all 7 Subjects
Abstract:
... A Cu-Ce-Zr-O composite oxide was synthesized by microwave direct denitration (MDD) and citric acid (CA) methods, with the latter used as an experimental control. X-ray diffraction analysis confirmed that MDD facilitated the formation of a highly homogeneous Cu-Ce-Zr-O composite oxide. The specific surface area and oxygen release rate of the MDD product were 2.2–2.4 and 1.4–1.7 times larger than th ...
DOI:
10.1016/j.powtec.2019.11.086

13. Electrokinetic remediation of uranium(VI)-contaminated red soil using composite electrolyte of citric acid and ferric chloride

Author:
Xiao, Jiang; Zhou, Shukui; Chu, Luping; Liu, Yinjiu; Li, Jiali; Zhang, Jian; Tian, Linyu
Source:
Environmental science and pollution research international 2020 v.27 no.4 pp. 4478-4488
ISSN:
0944-1344
Subject:
citric acid,   etc   ; electrolytes; energy; ferric chloride; leaching; polluted soils; remediation; risk; soil pore system; toxicity; uranium;     Show all 11 Subjects
Abstract:
... In the process of electrokinetic (EK) remediation of uranium-contaminated soil, the existence form of uranium in soil pore fluid will affect on its migration behavior. In this paper, a novel type of electrolyte (citric acid + ferric chloride, CA+ FeCl₃) has been investigated for the EK remediation of uranium-contaminated red soil. The effects of different electrolyte and the concentrations of FeCl ...
DOI:
10.1007/s11356-019-06990-2

14. Low-molecular-weight organic acids enable biochar to immobilize nitrate

Author:
Heaney, Natalie; Ukpong, Emem; Lin, Chuxia
Source:
Chemosphere 2020 v.240 pp. 124872
ISSN:
0045-6535
Subject:
citric acid,   etc   ; acid treatment; adsorption; biochar; feedstocks; malic acid; models; nitrates; oxalates; oxalic acid; protonation;     Show all 11 Subjects
Abstract:
... Batch experiments were conducted using two biochar materials produced from different feedstocks to examine the behavior of solution-borne nitrate in the presence and absence of three model low-molecular weight organic acids (LMWOAs). The results showed that the biochar materials alone were not able to remove the solution-borne nitrate. LMWOAs caused protonation of the biochar surfaces and conseque ...
DOI:
10.1016/j.chemosphere.2019.124872

15. Sensory properties of aqueous dispersions of protein‐rich extracts from Chlorella protothecoides at neutral and acidic pH

Author:
Grossmann, Lutz; Wörner, Vera; Hinrichs, Jörg; Weiss, Jochen
Source:
Journal of the science of food and agriculture 2020 v.100 no.3 pp. 1344-1349
ISSN:
0022-5142
Subject:
citric acid,   etc   ; Chlorella; beverages; bitterness; dispersions; microalgae; pH; proteins; sucrose; taste; water solubility;     Show all 11 Subjects
Abstract:
... BACKGROUND: Water‐soluble proteins extracted from the heterotrophically cultivated microalga Chlorella protothecoides have been shown to have a good solubility over a broad pH range, which makes them a promising candidate for beverage formulations. This study investigated the sensory properties of dispersions of a protein‐rich extract from C. protothecoides at neutral and pH 3. RESULTS: Sensory ac ...
DOI:
10.1002/jsfa.10082

16. Synergism of citric acid and zero-valent iron on Cr(VI) removal from real contaminated soil by electrokinetic remediation

Author:
Zheng, Yi; Yan, Yujie; Yu, Lin; Li, Huilin; Jiao, Binquan; Shiau, YanChyuan; Li, Dongwei
Source:
Environmental science and pollution research international 2020 v.27 no.5 pp. 5572-5583
ISSN:
0944-1344
Subject:
citric acid,   etc   ; acid soils; anaerobic conditions; anodes; catalytic activity; chromium; electrolytes; iron; polluted soils; remediation; synergism;     Show all 11 Subjects
Abstract:
... This study focused on enhanced electrokinetic remediation of Cr(VI) in real contaminated soil. The citric acid (CA) as the electrolyte and Fe(II) released from zero-valent iron (ZVI) under anoxic conditions functioned as the main reducer. They were used for overcoming the high insoluble Cr(VI) fraction in real contaminated soil and high Cr(VI) residue in acidic soil near the anode simultaneously. ...
DOI:
10.1007/s11356-019-06820-5

17. Development of Poly(lactic acid) Nanocomposites Reinforced with Hydrophobized Bacterial Cellulose

Author:
Ávila Ramírez, Jhon Alejandro; Bovi, Jimena; Bernal, Celina; Errea, María Inés; Foresti, María Laura
Source:
Journal of polymers and the environment 2020 v.28 no.1 pp. 61-73
ISSN:
1566-2543
Subject:
citric acid,   etc   ; catalytic activity; cellulose; dispersibility; nanocomposites; permeability; polylactic acid; solvents; tensile strength; water vapor;     Show all 10 Subjects
Abstract:
... Poly(lactic acid)/bacterial cellulose nanocomposites were prepared by solvent casting. Aiming to reduce the incompatibility between polar bacterial cellulose (BC) and the nonpolar poly(lactic acid) (PLA) matrix which induces filler aggregation and poor reinforcement dispersion, BC was acetylated by the use of a non-conventional route catalyzed by citric acid. The derivatized BC (AcBC) was incorpor ...
DOI:
10.1007/s10924-019-01581-1

18. Anhydride-cured epoxy resin reinforcing with citric acid-modified cellulose

Author:
Hsu, Yu-I; Huang, Lulu; Asoh, Taka-Aki; Uyama, Hiroshi
Source:
Polymer degradation and stability 2020 v.178 pp. 109213
ISSN:
0141-3910
Subject:
citric acid,   etc   ; adhesion; anhydrides; cellulose; epoxides; modulus of elasticity; moieties; propane; resins; scanning electron microscopy; tensile strength; toxicity;     Show all 12 Subjects
Abstract:
... Herein, improvement of the mechanical properties of epoxy resin by compositing with citric acid modified cellulose (CAC) was reported. CAC were prepared from carboxyl functionalization with citric acid to increase the adhesion between cellulose and epoxy resin. The epoxy resin composites were prepared using 2,2-bis (4-glycidyloxyphenyl) propane (BADGE) as component, 4-methylcyclohexane-1,2-dicarbo ...
DOI:
10.1016/j.polymdegradstab.2020.109213

19. Effects of citric acid on fermentation characteristics and bacterial diversity of Amomum villosum silage

Author:
Lv, Hongjian; Pian, Ruiqi; Xing, Yaqi; Zhou, Wei; Yang, Fuyu; Chen, Xiaoyang; Zhang, Qing
Source:
Bioresource technology 2020 v.307 pp. 123290
ISSN:
0960-8524
Subject:
citric acid,   etc   ; Enterobacter; Lactobacillus; Pantoea; Pediococcus; Wurfbainia villosa; ammonium nitrogen; coliform bacteria; fermentation; lactic acid bacteria; pH; silage; silage making;     Show all 13 Subjects
Abstract:
... To study the effects of citric acid on fermentation process of Amomum villosum silage, A. villosum was ensiled without or with 1%, 2% citric acid and fermentation parameters and bacterial diversity were analyzed after 3, 7, 14, 30 days ensiling, respectively. Citric acid treated silages had lower dry matter loss (1.83% vs 2.23%), pH (3.84 vs 6.02), ammonia-N (0.33 vs 1.79 g/kg DM) and coliform bac ...
DOI:
10.1016/j.biortech.2020.123290

20. Inhibitory role of citric acid in the adsorption of tetracycline onto biochars: Effects of solution pH and Cu2+

Author:
Zhang, Haojing; Lu, Taotao; Wang, Mengjie; Jin, Ruixia; Song, Yumeng; Zhou, Yanmei; Qi, Zhichong; Chen, Weifeng
Source:
Colloids and surfaces 2020 v.595 pp. 124731
ISSN:
0927-7757
Subject:
citric acid,   etc   ; adsorption; biochar; copper; cost effectiveness; electrostatic interactions; moieties; pH; pyrolysis; soil; soil remediation; temperature; tetracycline; wastewater treatment;     Show all 14 Subjects
Abstract:
... Biochar, a cost-effective carbonaceous material, has shown great promise in many applications such as soil remediation and wastewater treatment. Citric acid in soil and water environments may affect interactions between biochar and organic contaminants (e.g., tetracycline). To evaluate the effect of citric acid on the adsorption of tetracycline onto biochars, this study investigated the adsorption ...
DOI:
10.1016/j.colsurfa.2020.124731