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Michalski R, Kończyk J. Ion Chromatography and Related Techniques in Carbohydrate Analysis: A Review. Molecules 2024; 29:3413. [PMID: 39064991 PMCID: PMC11279986 DOI: 10.3390/molecules29143413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2024] [Revised: 07/15/2024] [Accepted: 07/18/2024] [Indexed: 07/28/2024] Open
Abstract
Ion chromatography and related techniques have been the most popular separation methods used in the determination of organic and inorganic anions and cations, predominantly in water and wastewater samples. Making progress in their development and introducing new stationary phases, methods of detection and preparation of samples for analyses have given rise to the broadening of their analytical range. Nowadays, they are also used for substances that are not ionic by nature but can convert to such forms under certain conditions. These encompass, among others, carbohydrates, whose role and significance in humans' lives and environment is invaluable. Their presence in the air is mostly due to the industrial burning of biomass for energy production purposes. In addition, the content of sugars in plants, fruits and vegetables, constituting the base of human diets, affects our health condition. Given that, there is not only a need for their determination by means of routine methods but also for searching for novel analytical solutions. Based on literature data from the past decade, this paper presents the possibilities and examples of applications regarding ion chromatography and related techniques for the determination of carbohydrates in environmental samples, biomass and plants constituting food or raw materials for food production. Attention has been paid to the virtues and limitations of the discussed separation methods in this respect. Moreover, perspectives on their development have been defined.
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Affiliation(s)
- Rajmund Michalski
- Institute of Environmental Engineering of Polish Academy of Sciences, 41-819 Zabrze, Poland
| | - Joanna Kończyk
- Institute of Chemistry, Faculty of Science & Technology, Jan Dlugosz University in Czestochowa, 42-200 Częstochowa, Poland;
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2
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Das U, Biswas R, Mazumder N. One-Pot Interference-Based Colorimetric Detection of Melamine in Raw Milk via Green Tea-Modified Silver Nanostructures. ACS OMEGA 2024; 9:21879-21890. [PMID: 38799313 PMCID: PMC11112553 DOI: 10.1021/acsomega.3c09516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/08/2024] [Accepted: 04/24/2024] [Indexed: 05/29/2024]
Abstract
Detection of melamine has proven to be a challenge, requiring the use of complex analytical techniques. This study introduces an innovative, straightforward one-pot technique for qualitative assessment of the milk adulterant melamine. Originally, silver nanoparticles (AgNPs) were synthesized by utilizing green tea extract, which acted as both a reducing and sensing element. The synthesized AgNPs were characterized using UV-vis spectroscopy, X-ray diffraction, zeta potential, transmission electron microscopy, field emission scanning electron microscopy, and Fourier transform infrared spectroscopy. Melamine, rich in -NH2 groups, interacts with the biopolyphenols of green tea extract through hydrogen bonding. This interaction inhibits the formation of nanoparticles, resulting in a noticeable colorimetric response. The data obtained were confirmed by a standard UV-vis spectrophotometer and validated by the high-performance liquid chromatography technique. The limit of detection achieved by this scheme was quite low, falling below the permissible levels recommended by government bodies, e.g., the Food Safety and Standards Authority of India (FSSAI).
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Affiliation(s)
- Upama Das
- Applied
Optics and Photonics Research Laboratory, Department of Physics, Tezpur University, Tezpur 784028, Assam, India
| | - Rajib Biswas
- Applied
Optics and Photonics Research Laboratory, Department of Physics, Tezpur University, Tezpur 784028, Assam, India
| | - Nirmal Mazumder
- Department
of Biophysics, Manipal School of Life Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
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3
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Bekdeşer B, Apak R. Colorimetric Sensing of Antioxidant Capacity via Auric Acid Reduction Coupled to ABTS Oxidation. ACS OMEGA 2024; 9:11738-11746. [PMID: 38497014 PMCID: PMC10938435 DOI: 10.1021/acsomega.3c09134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 02/13/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024]
Abstract
In this study, a simple and sensitive colorimetric assay has been developed for total antioxidant capacity measurement. The assay is based on the absorption measurement of the bluish-green oxidized product (ABTS·+) formed as a result of the oxidation reaction of the chromogenic reagent ABTS (2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) with gold(III). However, in the presence of antioxidants, the ABTS oxidation process is effectively suppressed due to the reduction of gold(III) ions to the zerovalent state forming gold nanoparticles (AuNPs). Relatively lighter colors and a significant decrease in absorbance are observed depending on the total antioxidant capacity. Taking advantage of this situation, qualitative and quantitative total antioxidant capacity (TAC) measurements, with the naked eye and UV-vis spectroscopy, respectively, could be successfully performed. The assay is named "auric reducing antioxidant capacity" (AuRAC) because the gold(III) ion-reducing ability of antioxidants is measured. The AuRAC assay was applied to dietary polyphenols, vitamin C, thiol-type antioxidants, and their synthetic mixtures. Trolox equivalent antioxidant capacity (TEAC) values obtained with the AuRAC assay were found to be compatible with those of the reference CUPRAC (cupric reducing antioxidant capacity) assay. The AuRAC assay was validated through linearity, additivity, precision, and recovery, demonstrating that the assay is reliable and robust. Compared to the simple TAC assays in the literature based on AuNP formation with subsequent surface plasmon resonance (SPR) absorbance measurement, this indirect assay has a smoother linear range starting from lower antioxidant concentrations. This method displays much higher molar absorption coefficients for antioxidant compounds than other conventional single electron transfer (SET) assays because 3-e- reduction of trivalent gold (i.e., Au(III) → Au(0)) produces three chromophore cation radicals (ABTS·+) of the assay reagent. The sensor has been successfully applied to complex matrices, such as tea infusions and pharmaceutical samples. The AuRAC assay stands out with its high molar absorptivity connected to enhanced sensitivity as well as its potential to convert into a paper-based colorimetric sensor.
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Affiliation(s)
- Burcu Bekdeşer
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, 34320 Istanbul, Turkey
| | - Reşat Apak
- Department
of Chemistry, Faculty of Engineering, Istanbul
University-Cerrahpaşa, Avcilar, 34320 Istanbul, Turkey
- Turkish
Academy of Sciences (TUBA), Çankaya, 06690 Ankara, Turkey
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4
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Navarro J, Cepriá G, Camacho-Aguayo J, Martín S, González Orive A, de Marcos S, Galbán J. Towards new fluorometric methodologies based on the in-situ generation of gold nanoclusters. Talanta 2024; 266:125119. [PMID: 37657379 DOI: 10.1016/j.talanta.2023.125119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/16/2023] [Accepted: 08/23/2023] [Indexed: 09/03/2023]
Abstract
In this manuscript a method for the fluorometric determination of tyramine is described. It is based on the direct reaction between Au(III) and tyramine in a phosphate buffer which produces fluorescent gold nanoclusters (AuNC) (λexc = 320 nm, λem = 410 nm) with a diameter of 1.50 ± 0.06 nm. The Au(III) and buffer solutions are mixed and after 140 s, tyramine solution is added; which produces a fast and stable fluorescence signal. The formation of AuNC is demonstrated by STEM and, more importantly, this reaction could be followed by Atomic Fluorescence Microscopy (AFM). The method allows the determination of tyramine in the range from 6.0x10-7 M (limit of quantification) up to 1.2x10-4 M; with a relative standard deviation (RSD) ranges from 1.8% to 4.4% depending on the tyramine concentration. The mechanism of AuNC formation involves the Au(III) reduction via the phenol group and the complexation with the amine group. Putrescine and cadaverine do not produce interference, meanwhile histamine causes a proportional decrease in the signal which can be overcome by the standard addition method. The method was applied to the determination of tyramine in a tuna and cheese samples and the results obtained are in statistical agreement with these obtained using a validated or standard method.
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Affiliation(s)
- Jesús Navarro
- Analytical Biosensors Group (GBA), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA), University of Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Gemma Cepriá
- Group of Analytical Spectroscopy and Sensors (GEAS), Instituto de Ciencias Ambientales (IUCA), Analytical Chemistry Department, Faculty of Sciences, University of Zaragoza, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Javier Camacho-Aguayo
- Analytical Biosensors Group (GBA), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA), University of Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Santiago Martín
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Departamento de Química Física, Universidad de Zaragoza, 50009, Zaragoza, Spain
| | - Alejandro González Orive
- Department of Chemistry, Materials and Nanotechnology Institute, University of La Laguna, Avda. Astrofísico Francisco Sánchez s/n, 38206, San Cristóbal de La Laguna, Spain
| | - Susana de Marcos
- Analytical Biosensors Group (GBA), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA), University of Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain
| | - Javier Galbán
- Analytical Biosensors Group (GBA), Analytical Chemistry Department, Faculty of Sciences, Instituto de Nanociencia y Materiales de Aragón (INMA), University of Zaragoza-CSIC, C/Pedro Cerbuna 12, 50009, Zaragoza, Spain.
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5
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Ngoc Hoa LT, An VN, Tra My VH, Thu Giang PT, Top LK, Chi Nhan HT, Thang PB, Thanh Van TT, Van Hieu L. Silver decorated on cobalt ferrite nanoparticles as a reusable multifunctional catalyst for water treatment applications in non-radiation conditions. RSC Adv 2023; 13:24554-24564. [PMID: 37593663 PMCID: PMC10427894 DOI: 10.1039/d3ra02950f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 07/29/2023] [Indexed: 08/19/2023] Open
Abstract
In this investigation, cobalt ferrite nanoparticles (CFO NPs) were synthesized using a hydrothermal method. Then, silver nanoparticles (Ag NPs) were decorated on CFO NPs to form Ag/CFO NPs using jasmine extract as a reducing agent of Ag+ ions. The properties of Ag/CFO NPs were characterized by X-ray powder diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, vibrating sample magnetometry, and catalytic tests in non-radiation conditions. The catalytic results indicated that the Ag/CFO NPs could activate peroxymonosulfate to generate sulfate radicals for the decomposition of different dyes such as methylene blue, methyl orange, and rhodamine B. For the Ag/CFO sample, Ag NPs validated the roles in dye adsorption, reduction of 4-nitrophenol, and improvement of antibacterial behavior. The growth inhibition activity of Ag/CFO NPs was observed against Pseudomonas aeruginosa (18.18 ± 2.48 mm) and Staphylococcus aureus (10.14 ± 0.72 mm). Furthermore, Ag/CFO NPs displayed good reusability after three consecutive runs. Therefore, Ag/CFO material is shown to be a potential multifunctional catalyst in wastewater treatment.
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Affiliation(s)
- Le Thi Ngoc Hoa
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
- Laboratory of Multifunctional Materials, University of Science, VNU-HCM 700000 Vietnam
| | - Vu Nang An
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
| | - Vo Huynh Tra My
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
| | - Pham Thi Thu Giang
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
| | - Le Khac Top
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
| | - Ha Thuc Chi Nhan
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
| | - Phan Bach Thang
- Vietnam National University Ho Chi Minh City 700000 Vietnam
- Center for Innovative Materials and Architectures, VNU-HCM Ho Chi Minh City 700000 Vietnam
| | - Tran Thi Thanh Van
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
| | - Le Van Hieu
- Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam
- Vietnam National University Ho Chi Minh City 700000 Vietnam
- Laboratory of Multifunctional Materials, University of Science, VNU-HCM 700000 Vietnam
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6
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Scroccarello A, Della Pelle F, Del Carlo M, Compagnone D. Optical plasmonic sensing based on nanomaterials integrated in solid supports. A critical review. Anal Chim Acta 2022; 1237:340594. [DOI: 10.1016/j.aca.2022.340594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 11/02/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
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7
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Molina-Hernández JB, Scroccarello A, Della Pelle F, De Flaviis R, Compagnone D, Del Carlo M, Paparella A, Chaves Lόpez C. Synergistic antifungal activity of catechin and silver nanoparticles on Aspergillus niger isolated from coffee seeds. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Tsogas GZ, Vlessidis AG, Giokas DL. Analyte-mediated formation and growth of nanoparticles for the development of chemical sensors and biosensors. Mikrochim Acta 2022; 189:434. [PMID: 36307660 DOI: 10.1007/s00604-022-05536-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2022] [Accepted: 10/12/2022] [Indexed: 10/31/2022]
Abstract
The cornerstone of nanomaterial-based sensing systems is the synthesis of nanoparticles with appropriate surface functionalization that ensures their stability and determines their reactivity with organic or inorganic analytes. To accomplish these requirements, various compounds are used as additives or growth factors to regulate the properties of the synthesized nanoparticles and their reactivity with the target analytes. A different rationale is to use the target analytes as additives or growth agents to control the formation and properties of nanoparticles. The main difference is that the analyte recognition event occurs before or during the formation of nanoparticles and it is based on the reactivity of the analytes with the precursor materials of the nanoparticles (e.g., metal ions, reducing agents, and coatings). The transition from the ionic (or molecular) state of the precursor materials to ordered nanostructured assemblies is used for sensing and signal transduction for the qualitative detection and the quantitative determination of the target analytes, respectively. This review focuses on assays that are based on analyte-mediated regulation of nanoparticles' formation and differentiate them from standard nanoparticle-based assays which rely on pre-synthesized nanoparticles. Firstly, the principles of analyte-mediated nanomaterial sensors are described and then they are discussed with emphasis on the sensing strategies, the signal transduction mechanisms, and their applications. Finally, the main advantages, as well as the limitations of this approach, are discussed and compared with assays that rely on pre-synthesized nanoparticles in order to highlight the major advances accomplished with this type of nano-sensors and elucidate challenges and opportunities for further evolving new nano-sensing strategies.
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Affiliation(s)
- George Z Tsogas
- Laboratory of Analytical Chemistry, Department of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece
| | - Athanasios G Vlessidis
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece
| | - Dimosthenis L Giokas
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Ioannina, 45110, Ioannina, Greece.
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9
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Effect of Wheat Crop Nitrogen Fertilization Schedule on the Phenolic Content and Antioxidant Activity of Sprouts and Wheatgrass Obtained from Offspring Grains. PLANTS 2022; 11:plants11152042. [PMID: 35956521 PMCID: PMC9370410 DOI: 10.3390/plants11152042] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 11/29/2022]
Abstract
This work was aimed at investigating the effects of rate and timing of nitrogen fertilization applied to a maternal wheat crop on phytochemical content and antioxidant activity of edible sprouts and wheatgrass obtained from offspring grains. We hypothesized that imbalance in N nutrition experienced by the mother plants translates into transgenerational responses on seedlings obtained from the offspring seeds. To this purpose, we sprouted grains of two bread wheat cultivars (Bologna and Bora) grown in the field under four N fertilization schedules: constantly well N fed with a total of 300 kg N ha−1; N fed only very early, i.e., one month after sowing, with 60 kg N ha−1; N fed only late, i.e., at initial shoot elongation, with 120 kg N ha−1; and unfertilized control. We measured percent germination, seedling growth, vegetation indices (by reflectance spectroscopy), the phytochemical content (total phenols, phenolic acids, carotenoids, chlorophylls), and the antioxidant activity (by gold nanoparticles photometric assay) of extracts in sprout and wheatgrass obtained from the harvested seeds. Our main finding is that grains obtained from crops subjected to late N deficiency produced wheatgrass with much higher phenolic content (as compared to the other N treatments), and this was observed in both cultivars. Thus, we conclude that late N deficiency is a stressing condition which elicits the production of phenols. This may help counterbalance the loss of income related to lower grain yield in crops subjected to such an imbalance in N nutrition.
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10
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Nanocomposite of MgFe2O4 and Mn3O4 as Polyphenol Oxidase Mimic for Sensing of Polyphenols. BIOSENSORS 2022; 12:bios12060428. [PMID: 35735575 PMCID: PMC9221326 DOI: 10.3390/bios12060428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 06/06/2022] [Accepted: 06/15/2022] [Indexed: 11/17/2022]
Abstract
Polyphenol oxidase (PPO) mimics have advantage of detection and remediation of polyphenols. This work demonstrates rapid and sensitive colorimetric detection of phenolic compounds using nanocomposite of magnesium ferrite (MgFe2O4) and manganese oxide (Mn3O4) nanoparticles as PPO mimic. The catalytic properties of MgFe2O4 and Mn3O4 displayed synergistic effect in the nanocomposite. The synthesized nanocomposite and nanoparticles were fully characterized using various analytical techniques. The ratio of MgFe2O4 and Mn3O4 in the nanocomposite was optimized. Catechol and resorcinol were taken as model polyphenols. The best PPO-activity was shown by MgFe2O4@Mn3O4 nanocomposite with of w/w ratio 1:2. The results correlated with its higher surface area. Reaction parameters viz. pH, temperature, contact time, substrate concentration, and nanoparticles dose were studied. The synthesized MgFe2O4@Mn3O4 nanocomposite was used for the detection of catechol in the linear range of 0.1–0.8 mM with the detection limit of 0.20 mM, and resorcinol in the range of 0.01–0.08 mM with the detection limit of 0.03 mM. The estimated total phenolic content of green and black tea correlated well with the conventional method. These results authenticate promising future potential of MgFe2O4@Mn3O4 nanocomposite as PPO-mimic
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Scroccarello A, Della Pelle F, Del Carlo M, Compagnone D. Monitoring disinfection in the Covid-19 era. A reagent-free nanostructured smartphone-based device for the detection of oxidative disinfectants. Microchem J 2022. [DOI: 10.1016/j.microc.2021.107165] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Dortez S, González MC, Crevillen AG, Escarpa A. Gold nanostructure-related non-plasmon resonance absorption band as a fingerprint of ortho-alkyl substituted phenolic compounds. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Scroccarello A, Della Pelle F, Rojas D, Ferraro G, Fratini E, Gaggiotti S, Cichelli A, Compagnone D. Metal nanoparticles based lab-on-paper for phenolic compounds evaluation with no sample pretreatment. Application to extra virgin olive oil samples. Anal Chim Acta 2021; 1183:338971. [PMID: 34627526 DOI: 10.1016/j.aca.2021.338971] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/03/2021] [Accepted: 08/18/2021] [Indexed: 12/01/2022]
Abstract
In this work, a low-cost, disposable, and portable lab-on-paper device is proposed to simultaneously quantify total polyphenol content (TPC) and antioxidant capacity (AOC) in 15 min; the assay requires no pre-treatment of the samples. The lab-on-paper device fabrication has been carried out employing a xurography-based benchtop microfabrication technology using low-cost materials as chromatography paper and polymeric sheets. Extra virgin olive oil (EVOO) phenolic compounds' represents a nutritional added value, nevertheless, the high lipidic content hinders their direct and rapid analysis, resulting in an extremely challenging sample. The realized lab-on-paper allows to perform the dual TPC and AOC determination in three simple steps: (i) sample loading, (ii) analytes transport to the analysis spot, and (iii) double colorimetric analysis exploiting the growth of AuNPs and AgNPs on paper mediated by phenolic compounds. Signal acquisition is achieved using a standard digital camera. The dual colorimetric assay is able to detect phenolic compounds in the 25-500 mg L-1 range with limits of detection ≤6 mg L-1 and good reproducibility (RSDs ≤11%). Direct analysis of EVOO samples (n = 30) correlated well (r > 0.92) with conventional spectrophotometric methods for TPC and AOC determination.
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Affiliation(s)
- Annalisa Scroccarello
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, 64100, Teramo, Italy
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, 64100, Teramo, Italy.
| | - Daniel Rojas
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, 64100, Teramo, Italy
| | - Giovanni Ferraro
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy
| | - Sara Gaggiotti
- Department of Science, University of Pescara-Chieti, Viale Pindaro 42, 65127, Pescara, Italy
| | - Angelo Cichelli
- Department of Science, University of Pescara-Chieti, Viale Pindaro 42, 65127, Pescara, Italy
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" Via R. Balzarini 1, 64100, Teramo, Italy.
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14
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Silveri F, Della Pelle F, Rojas D, Bukhari QUA, Ferraro G, Fratini E, Compagnone D. (+)-Catechin-assisted graphene production by sonochemical exfoliation in water. A new redox-active nanomaterial for electromediated sensing. Mikrochim Acta 2021; 188:369. [PMID: 34618244 DOI: 10.1007/s00604-021-05018-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/03/2021] [Indexed: 01/21/2023]
Abstract
A new green and effective sonochemical liquid-phase exfoliation (LPE) is proposed wherein a flavonoid compound, catechin (CT), promotes the formation of conductive, redox-active, water-phase stable graphene nanoflakes (GF). To maximize the GF-CT redox activity, the CT concentration and sonication time have been studied, and the best performing nanomaterial-fraction selected. Physicochemical and electrochemical methods have been employed to characterize the morphological, structural, and electrochemical features of the GF-CT nanoflakes. The obtained GF intercalated with CT exhibits fully reversible electrochemistry (ΔEp = 28 mV, ipa/ipc = ⁓1) because of the catecholic adducts. GF-CT-integrated electrochemistry was generated directly during LPE of graphite, with no need of graphene oxide production, nor activation steps, electropolymerization, or ex-post functionalization. The GF-CT electro-mediator ability has been proven towards hydrazine (HY) and β-nicotinamide adenine dinucleotide (NADH) by simply drop-casting the redox-material onto screen-printed electrodes. GF-CT-based electrodes by using amperometry exhibited high sensitivity and extended linear ranges (HY: LOD = 0.1 µM, L.R. 0.5-150 µM; NADH: LOD = 0.6 µM, L.R. 2.5-200 µM) at low overpotential (+ 0.15 V) with no electrode fouling. The GF-CT electrodes are performing significantly better than commercial graphite electrodes and graphene nanoflakes exfoliated with a conventional surfactant, such as sodium cholate. Recoveries of 94-107% with RSD ≤ 8% (n = 3) for determination of HY and NADH in environmental and biological samples were achieved, proving the material functionality also in challenging analytical media. The presented GF-CT is a new functional redox-active material obtainable with a single-pot sustainable strategy, exhibiting standout properties particularly prone to (bio)sensors and cutting-edge device development.
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Affiliation(s)
- Filippo Silveri
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" via R. Balzarini 1, 64100, Teramo, Italy
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" via R. Balzarini 1, 64100, Teramo, Italy.
| | - Daniel Rojas
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" via R. Balzarini 1, 64100, Teramo, Italy
| | - Qurat Ul Ain Bukhari
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" via R. Balzarini 1, 64100, Teramo, Italy
| | - Giovanni Ferraro
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, 50019, Florence, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via Della Lastruccia 3-Sesto Fiorentino, 50019, Florence, Italy
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Campus "Aurelio Saliceti" via R. Balzarini 1, 64100, Teramo, Italy.
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Santarelli V, Neri L, Moscetti R, Di Mattia CD, Sacchetti G, Massantini R, Pittia P. Combined Use of Blanching and Vacuum Impregnation with Trehalose and Green Tea Extract as Pre-treatment to Improve the Quality and Stability of Frozen Carrots. FOOD BIOPROCESS TECH 2021. [DOI: 10.1007/s11947-021-02637-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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16
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Oliva E, Viteritti E, Fanti F, Eugelio F, Pepe A, Palmieri S, Sergi M, Compagnone D. Targeted and semi-untargeted determination of phenolic compounds in plant matrices by high performance liquid chromatography-tandem mass spectrometry. J Chromatogr A 2021; 1651:462315. [PMID: 34157475 DOI: 10.1016/j.chroma.2021.462315] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/28/2021] [Accepted: 05/29/2021] [Indexed: 12/20/2022]
Abstract
In this work two different acquisition approaches were used for the quantification and/or tentative identification of phenolic compounds (PCs) in plant matrices by HPLC-MS/MS. A targeted approach, based on MRM acquisition mode, was used for the identification and quantification of a list of target analytes by comparison with standards; a semi-targeted approach was also developed by the precursor ion scan and neutral loss for the tentative identification of compounds not included in the target list. Analysis of phenolic content in three different plant matrices (curry leaves, hemp and blueberry) was carried out. The extraction and clean-up steps were set up according to the characteristics of the sample allowing to minimize the interfering compounds present in such complex matrices, as proved by the low matrix effect obtained (<16%) and recovery values ranging from 45% to 98% for all the analytes. This approach provided a sensitive and robust quantitative analysis of the target compounds with LOQs between 0.0002 and 0.05 ng mg-1, which allowed the identification and quantification of several hydroxycinnamic and hydroxybenzoic acids, in addition to numerous flavonoids in all three matrices. Furthermore, different moieties were considered as neutral losses or as precursor ions in semi-targeted MS/MS approach, providing the putative identification of different glycosylated forms of flavonoids, such as luteolin-galactoside and diosmin in all three matrices, while apigenin-glucuronide was detected in hemp and quercetin-glucuronide in blueberry. A further study was carried out by MS3, allowing the discrimination of compounds with similar aglycones, such as luteolin and kaempferol.
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Affiliation(s)
- Eleonora Oliva
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Eduardo Viteritti
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Federico Fanti
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Fabiola Eugelio
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Alessia Pepe
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Sara Palmieri
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
| | - Manuel Sergi
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy.
| | - Dario Compagnone
- University of Teramo, Faculty of Bioscience and Technology for Food, Agriculture and Environment, Teramo, Italy
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Raja DA, Munir F, Shah MR, Bhanger MI, Malik MI. Colorimetric sensing of cephradine through polypropylene glycol functionalized gold nanoparticles. ROYAL SOCIETY OPEN SCIENCE 2021; 8:210185. [PMID: 34084550 PMCID: PMC8150016 DOI: 10.1098/rsos.210185] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
The development of metal nanoparticle-based facile colorimetric assays for drugs and insecticides is an emerging area of current scientific research. In the present work, polypropylene glycol was used for stabilization of gold nanoparticles (AuNPs) in a simple one-pot two-phase process and subsequently employed it for the specific detection of cephradine (CPH). The characterization of the prepared PPG-AuNPs was conducted through various analytical techniques such as UV-visible spectrophotometry, Fourier transform infrared spectroscopy, atomic force microscopy (AFM), zeta potential and zetasizer techniques. As the major target of the study, the stabilized PPG-AuNPs were employed for colorimetric detection of CPH and other drugs. Typical wine-red colour of PPG-AuNPs disappeared immediately and surface plasmon resonance band quenched by addition of CPH in the presence of several other interferents (drugs and salts) and in real samples. PPG-AuNPs permitted efficient, selective, reliable and rapid determination in a concentration range of 0.01-120 mM with a detection limit (LoD) of 11.0 mM. The developed sensor has the potential to be used for fast scanning of pharmaceutical formulations for quantification of CPH at production facilities.
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Affiliation(s)
- Daim Asif Raja
- H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Fazeelah Munir
- H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Muhammad Raza Shah
- H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | | | - Muhammad Imran Malik
- H.E.J. Research Institute of Chemistry, University of Karachi, Karachi 75270, Pakistan
- Third World Center for Science and Technology, International Center for Chemical and Biological Sciences (ICCBS), University of Karachi, Karachi 75270, Pakistan
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18
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New application of a traditional method: colorimetric sensor array for reducing sugars based on the in-situ formation of core-shell gold nanorod-coated silver nanoparticles by the traditional Tollens reaction. Mikrochim Acta 2021; 188:142. [PMID: 33774720 DOI: 10.1007/s00604-021-04796-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Accepted: 03/18/2021] [Indexed: 10/21/2022]
Abstract
An effective and robust colorimetric sensor array for simultaneous detection and discrimination of five reducing sugars (i.e., glyceraldehyde (Gly), fructose (Fru), glucose (Glu), maltose (Mal), and ribose (Rib)) has been proposed. In the sensor array, two negatively charged polydielectrics (sodium polystyrenesulfonate (NaPSS) and sodium polymethacrylate (NaPMAA)), which served as the sensing elements, were individually absorbed on the surface of the cetyltrimethylammonium bromide (CTAB)-coated gold nanorods (AuNR) with positive charges through electrostatic action, forming the designed sensor units (NaPSS-AuNR and NaPMAA-AuNR). In the presence of Tollens reagent (Ag(NH3)2OH), Ag+ was absorbed on the surface of negatively charged NaPSS-AuNR and NaPMAA-AuNRs. When confronted with differential reducing sugars, different reducing sugars exhibited differential levels of deoxidizing abilities toward Ag+, thus Ag+ was reduced to diverse amounts of silver nanoparticles (AgNPs) in situ to form core-shell AuNR@AgNP by the traditional Tollens reaction method, leading to distinct colorimetric response patterns (value of AS/AL (the ratio of absorbance at 360 nm to that at 760 nm in Ag+-NaPMAA-AuNR, and the ratio of absorbance at 360 nm to that at 740 nm in Ag+-NaPSS-AuNR)). These response patterns are characteristic for each reducing sugar, and can be quantitatively distinguished by linear discriminant analysis (LDA) at concentrations as low as 10 nM with relative standard deviation (RSD) of 4.11% (n = 3). The practicability of this sensor array has been validated by recognition of reducing sugars in serum and urine samples. A colorimetric sensor array for reducing sugar discrimination based on the reduction of Ag+ and in situ formation of AuNR@AgNP.
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19
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Vinay SP, Alharthi FA, Udayabhanu, Alsalme A, Nagaraju G. Hydrothermal synthesis of Ag/rGO@CTFE nanocomposite as a promising photocatalyst for degradation action. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129722] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Nejadmansouri M, Majdinasab M, Nunes GS, Marty JL. An Overview of Optical and Electrochemical Sensors and Biosensors for Analysis of Antioxidants in Food during the Last 5 Years. SENSORS (BASEL, SWITZERLAND) 2021; 21:1176. [PMID: 33562374 PMCID: PMC7915219 DOI: 10.3390/s21041176] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 02/02/2021] [Accepted: 02/03/2021] [Indexed: 02/07/2023]
Abstract
Antioxidants are a group of healthy substances which are useful to human health because of their antihistaminic, anticancer, anti-inflammatory activity and inhibitory effect on the formation and the actions of reactive oxygen species. Generally, they are phenolic complexes present in plant-derived foods. Due to the valuable nutritional role of these mixtures, analysis and determining their amount in food is of particular importance. In recent years, many attempts have been made to supply uncomplicated, rapid, economical and user-friendly analytical approaches for the on-site detection and antioxidant capacity (AOC) determination of food antioxidants. In this regards, sensors and biosensors are regarded as favorable tools for antioxidant analysis because of their special features like high sensitivity, rapid detection time, ease of use, and ease of miniaturization. In this review, current five-year progresses in different types of optical and electrochemical sensors/biosensors for the analysis of antioxidants in foods are discussed and evaluated well. Moreover, advantages, limitations, and the potential for practical applications of each type of sensors/biosensors have been discussed. This review aims to prove how sensors/biosensors represent reliable alternatives to conventional methods for antioxidant analysis.
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Affiliation(s)
- Maryam Nejadmansouri
- Department of Food Science & Technology, School of Agriculture, Shiraz University, Shiraz 71441-65186, Iran
| | - Marjan Majdinasab
- Department of Food Science & Technology, School of Agriculture, Shiraz University, Shiraz 71441-65186, Iran
| | - Gilvanda S Nunes
- Pesticide Residue Analysis Center, Federal University of Maranhao, 65080-040 Sao Luis, Brazil
| | - Jean Louis Marty
- Faculty of Sciences, University of Perpignan Via Domitia, 52 Avenue Paul Alduy, 66860 Perpignan CEDEX 9, France
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21
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Pomegranate fruit fleshy pericarp mediated silver nanoparticles possessing antimicrobial, antibiofilm formation, antioxidant, biocompatibility and anticancer activity. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102289] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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22
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Scroccarello A, Molina-Hernández B, Della Pelle F, Ciancetta J, Ferraro G, Fratini E, Valbonetti L, Chaves Copez C, Compagnone D. Effect of phenolic compounds-capped AgNPs on growth inhibition of Aspergillus niger. Colloids Surf B Biointerfaces 2020; 199:111533. [PMID: 33388719 DOI: 10.1016/j.colsurfb.2020.111533] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Revised: 09/26/2020] [Accepted: 12/09/2020] [Indexed: 11/30/2022]
Abstract
An exponential increase of scientific works dealing with the use of polyphenol-rich 'natural products' for the synthesis of bioactive AgNPs is in progress. However, a lack of fundamental studies on phytochemical compounds involved, and their role is evident. In this work, a comprehensive study of the antifungal performances of silver nanoparticles (AgNPs) synthesized exclusively with phenolic compounds (PCs) with different structures and different antioxidant capacity is presented. The experimental hypothesis is that AgNPs@PCs produced with different PCs can exert different toxicity. In particular, di-hydroxylic and tri-hydroxylic phenolic acids (caffeic acid and gallic acid) and flavonoids (catechin and myricetin) were compared. A room temperature rapid and simple AgNPs synthesis was carefully optimized, obtaining stable and reproducible colloids. AgNPs@PCs suspensions were characterized by UV-vis spectroscopy, ς-potential, dynamic light scattering and transmission electron microscopy. AgNPs@PCs radical scavenging capacity was also assessed. Finally, the AgNPs@PCs antifungal effect was tested against Aspergillus niger, particularly on spore germination and mycelial growth. The different antifungal activity was attributed to the different PCs' ability to generate/stabilize AgNPs with different shells, residual antioxidant capacity, and capacity to interact and aggregate during their 'attack' to A. niger hyphae. This work paves the way for the rational use of PCs and PCs rich-products for AgNPs-based applications.
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Affiliation(s)
- Annalisa Scroccarello
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Bernardo Molina-Hernández
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy.
| | - Johnny Ciancetta
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Giovanni Ferraro
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, Via della Lastruccia 3-Sesto Fiorentino, I-50019, Florence, Italy
| | - Luca Valbonetti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
| | - Clemencia Chaves Copez
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy.
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, Via Renato Balzarini 1, 64100, Teramo, Italy
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23
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Class-selective voltammetric determination of hydroxycinnamic acids structural analogs using a WS 2/catechin-capped AuNPs/carbon black-based nanocomposite sensor. Mikrochim Acta 2020; 187:296. [PMID: 32347378 DOI: 10.1007/s00604-020-04281-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Accepted: 04/13/2020] [Indexed: 12/13/2022]
Abstract
A high-performance screen-printed electrode (SPE) based nanocomposite sensor integrating tungsten disulfide (WS2) flakes decorated with catechin-capped gold nanoparticles (AuNP-CT) and carbon black (CB) has been developed. The excellent antifouling properties of WS2 decorated with AuNP-CT into a high conductivity network of CB results in high selectivity, sensitivity, and reproducibility for the simultaneous determination of hydroxycinnamic acid (hCN) structural analogs: caffeic (CF), sinapic (SP), and p-coumaric acids (CM). Using differential pulse voltammetry (DPV), the target hCNs resulted in three well-resolved oxidation peaks at SPE-CB-WS2/AuNP-CT sensor. Excellent antifouling performance (RSD ip,a ≤ 3%, n = 15 for three analytes' simultaneous measure) and low detection limits (CF 0.10 μmol L-1; SP, 0.40 μmol L-1; CM, 0.40 μmol L-1) are obtained despite the analyzed compounds having a high passivation tendency towards carbon-based sensors. The SPE-CB-WS2/AuNP-CT sensor was successfully applied to determine CF, SP, and CM in food samples with good precision (RSD ≤ 4%, n = 3) and recoveries (86-109%; RSD ≤ 5%, n = 3). The proposed sensor is the first example exploiting the simultaneous determination of these compounds in food samples. Given its excellent electrochemical performance, low cost, disposability, and ease of use, this SPE-CB-WS2/AuNP-CT nanocomposite sensor represents a powerful candidate for the realization of electrochemical devices for the determination of (bio)compounds with high passivation tendency. Graphical abstract.
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24
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Scroccarello A, Della Pelle F, Fratini E, Ferraro G, Scarano S, Palladino P, Compagnone D. Colorimetric determination of polyphenols via a gold nanoseeds–decorated polydopamine film. Mikrochim Acta 2020; 187:267. [DOI: 10.1007/s00604-020-04228-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 03/16/2020] [Indexed: 12/31/2022]
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25
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Pilaquinga F, Amaguaña D, Morey J, Moncada-Basualto M, Pozo-Martínez J, Olea-Azar C, Fernández L, Espinoza-Montero P, Jara-Negrete E, Meneses L, López F, Debut A, Piña N. Synthesis of Silver Nanoparticles Using Aqueous Leaf Extract of Mimosa albida (Mimosoideae): Characterization and Antioxidant Activity. MATERIALS 2020; 13:ma13030503. [PMID: 31973124 PMCID: PMC7040681 DOI: 10.3390/ma13030503] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/21/2019] [Accepted: 12/22/2019] [Indexed: 12/18/2022]
Abstract
The search for sensitive and rapid analytical techniques for the determination of natural antioxidants is an area in constant growth due, among other aspects, to the complexity of plant matrices. In this study, silver nanoparticles prepared with the aqueous extract of Mimosa albida leaves were used to assess their polyphenolic content and antioxidant capacity. Silver nanoparticles were characterized by different techniques. As a result, nanoparticles of 6.5 ± 3.1 nm were obtained. The total phenolic content in the extract was 1320.4 ± 17.6 mg of gallic acid equivalents GAE. 100 g-1 and in the nanoparticles 257.3 ± 5.1 mg GAE. 100 g-1. From the phenolic profile analyzed by ultra high-performance liquid chromatography (UPLC) with a diode-array detector (DAD), the presence of apigenin and luteolin in the plant extract is postulated. The antioxidant capacity measured by oxygen radical absorbance capacity ORAC-fluorescein assay was 86917 ± 6287 and 7563 ± 967 µmol ET g-1 in the extract and nanoparticles respectively. Electrochemical analysis by cyclic voltammetry (CV) confirmed the effective reduction capacity of the Mimosa albida leaves extract to reduce Ag ions to AgNPs and differential pulse voltammetry (DPV) suggested the presence of two main reducing agents in the extract. From this study, it was concluded that the aqueous extract of Mimosa albida contains reducing agents capable of synthesizing silver nanoparticles, which can be used in the phytochemical industry.
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Affiliation(s)
- Fernanda Pilaquinga
- School of Chemical Sciences, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador; (D.A.); (L.F.); (P.E.-M.); (E.J.-N.); (L.M.)
- Department of Chemistry, University of the Balearic Islands, Cra. de Valldemossa Km. 7.5, 07122 Palma de Mallorca, Spain;
- Correspondence: (F.P.); (N.P.)
| | - Dennis Amaguaña
- School of Chemical Sciences, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador; (D.A.); (L.F.); (P.E.-M.); (E.J.-N.); (L.M.)
| | - Jeroni Morey
- Department of Chemistry, University of the Balearic Islands, Cra. de Valldemossa Km. 7.5, 07122 Palma de Mallorca, Spain;
| | - Mauricio Moncada-Basualto
- Department of Inorganic and Analytical Chemistry, University of Chile, Sergio Livingstone 1007, Independencia, Santiago 233, Chile; (M.M.-B.); (J.P.-M.); (C.O.-A.)
| | - Josué Pozo-Martínez
- Department of Inorganic and Analytical Chemistry, University of Chile, Sergio Livingstone 1007, Independencia, Santiago 233, Chile; (M.M.-B.); (J.P.-M.); (C.O.-A.)
| | - Claudio Olea-Azar
- Department of Inorganic and Analytical Chemistry, University of Chile, Sergio Livingstone 1007, Independencia, Santiago 233, Chile; (M.M.-B.); (J.P.-M.); (C.O.-A.)
| | - Lenys Fernández
- School of Chemical Sciences, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador; (D.A.); (L.F.); (P.E.-M.); (E.J.-N.); (L.M.)
- Departamento de Química, Universidad Simón Bolívar, Apartado, Caracas 89000, Venezuela
| | - Patricio Espinoza-Montero
- School of Chemical Sciences, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador; (D.A.); (L.F.); (P.E.-M.); (E.J.-N.); (L.M.)
| | - Eliza Jara-Negrete
- School of Chemical Sciences, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador; (D.A.); (L.F.); (P.E.-M.); (E.J.-N.); (L.M.)
| | - Lorena Meneses
- School of Chemical Sciences, Pontificia Universidad Católica del Ecuador, Av. 12 de octubre 1076, Apartado 17-01-2184, Ecuador; (D.A.); (L.F.); (P.E.-M.); (E.J.-N.); (L.M.)
| | - Fernanda López
- School of Agricultural & Environmental Sciences, Pontificia Universidad Católica del Ecuador Sede Ibarra, Jorge Guzmán Rueda Ave., Ibarra 100150, Ecuador;
| | - Alexis Debut
- Centro de Nanociencia y Nanotecnología, Universidad de las Fuerzas Armadas ESPE, Sangolqui 170501, Ecuador;
| | - Nieves Piña
- Department of Chemistry, University of the Balearic Islands, Cra. de Valldemossa Km. 7.5, 07122 Palma de Mallorca, Spain;
- Correspondence: (F.P.); (N.P.)
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Cocoa powder and catechins as natural mediators to modify carbon-black based screen-printed electrodes. Application to free and total glutathione detection in blood. Talanta 2020; 207:120349. [DOI: 10.1016/j.talanta.2019.120349] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 09/08/2019] [Accepted: 09/11/2019] [Indexed: 02/07/2023]
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27
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Aksorn J, Teepoo S. Development of the simultaneous colorimetric enzymatic detection of sucrose, fructose and glucose using a microfluidic paper-based analytical device. Talanta 2020; 207:120302. [DOI: 10.1016/j.talanta.2019.120302] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Revised: 08/26/2019] [Accepted: 08/27/2019] [Indexed: 02/05/2023]
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28
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Rojas D, Della Pelle F, Del Carlo M, Fratini E, Escarpa A, Compagnone D. Nanohybrid carbon black-molybdenum disulfide transducers for preconcentration-free voltammetric detection of the olive oil o-diphenols hydroxytyrosol and oleuropein. Mikrochim Acta 2019; 186:363. [PMID: 31104163 DOI: 10.1007/s00604-019-3418-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 04/05/2019] [Indexed: 11/26/2022]
Abstract
A new hybrid nanomaterial is used in a screen-printed electrode (SPE) for sensing of the ortho-diphenols oleuropein (OLEU) and hydroxytyrosol (HYT) in extra virgin olive oil (EVOO) and related samples. The hybrid material consists of carbon black (CB) and molybdenum disulfide (MoS2). In comparison with individual nanomaterials, CB-MoS2 exhibits improved charge-transfer ability, low charge-transfer resistance, high electrical conductivity and enhanced electrocatalysis. The sensor is also characterized by (a) high sensitivity that avoids the need for adsorptive voltammetry, (b) reduced analysis time, and (c) high anti-fouling ability (electrode RSDOLEU < 8%, for n = 10). OLEU can be detected in the 0.3 to 30 μM concentration range with a 0.1 μM LOD, and HYT in the 2-100 μM range with a 1 μM LOD. A comparison of the data obtained by this sensor and by HPLC-UV exhibited high correlation (r = 0.995, p < 0.05). These data revealed the reliability of CB-MoS2 for analysis of complex EVOO and related samples. Graphical abstract CB-MoS2-based electrochemical sensor for fast and reliable assessment of total ortho-diphenols antioxidants in olive oils.
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Affiliation(s)
- Daniel Rojas
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares, E-28871, Madrid, Spain
| | - Flavio Della Pelle
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy
| | - Michele Del Carlo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff" and CSGI, University of Florence, via della Lastruccia 3 Sesto Fiorentino, I-50019, Florence, Italy
| | - Alberto Escarpa
- Department of Analytical Chemistry, Physical Chemistry and Chemical Engineering, University of Alcalá, Alcalá de Henares, E-28871, Madrid, Spain.
- Chemical Research Institute "Andres M. del Rio", University of Alcalá, E-28871, Madrid, Spain.
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment University of Teramo, 64023, Teramo, Italy.
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