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Maqbool Q, Favoni O, Wicht T, Lasemi N, Sabbatini S, Stöger-Pollach M, Ruello ML, Tittarelli F, Rupprechter G. Highly Stable Self-Cleaning Paints Based on Waste-Valorized PNC-Doped TiO 2 Nanoparticles. ACS Catal 2024; 14:4820-4834. [PMID: 38601782 PMCID: PMC11003396 DOI: 10.1021/acscatal.3c06203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/14/2024] [Accepted: 02/14/2024] [Indexed: 04/12/2024]
Abstract
Adding photocatalytically active TiO2 nanoparticles (NPs) to polymeric paints is a feasible route toward self-cleaning coatings. While paint modification by TiO2-NPs may improve photoactivity, it may also cause polymer degradation and release of toxic volatile organic compounds. To counterbalance adverse effects, a synthesis method for nonmetal (P, N, and C)-doped TiO2-NPs is introduced, based purely on waste valorization. PNC-doped TiO2-NP characterization by vibrational and photoelectron spectroscopy, electron microscopy, diffraction, and thermal analysis suggests that TiO2-NPs were modified with phosphate (P=O), imine species (R=N-R), and carbon, which also hindered the anatase/rutile phase transformation, even upon 700 °C calcination. When added to water-based paints, PNC-doped TiO2-NPs achieved 96% removal of surface-adsorbed pollutants under natural sunlight or UV, paralleled by stability of the paint formulation, as confirmed by micro-Fourier transform infrared (FTIR) surface analysis. The origin of the photoinduced self-cleaning properties was rationalized by three-dimensional (3D) and synchronous photoluminescence spectroscopy, indicating that the dopants led to 7.3 times stronger inhibition of photoinduced e-/h+ recombination when compared to a benchmark P25 photocatalyst.
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Affiliation(s)
- Qaisar Maqbool
- Department of Materials, Environmental Sciences and
Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM
Research Unit, via Brecce Bianche 12, 60131 Ancona,
Italy
- Institute of Materials Chemistry, TU
Wien, Getreidemarkt 9/BC, A-1060 Vienna, Austria
| | - Orlando Favoni
- Department of Materials, Environmental Sciences and
Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM
Research Unit, via Brecce Bianche 12, 60131 Ancona,
Italy
| | - Thomas Wicht
- Institute of Materials Chemistry, TU
Wien, Getreidemarkt 9/BC, A-1060 Vienna, Austria
| | - Niusha Lasemi
- Institute of Materials Chemistry, TU
Wien, Getreidemarkt 9/BC, A-1060 Vienna, Austria
| | - Simona Sabbatini
- Department of Materials, Environmental Sciences and
Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM
Research Unit, via Brecce Bianche 12, 60131 Ancona,
Italy
| | - Michael Stöger-Pollach
- University Service Center for Transmission
Electron Microscopy, TU Wien, 1040 Vienna,
Austria
| | - Maria Letizia Ruello
- Department of Materials, Environmental Sciences and
Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM
Research Unit, via Brecce Bianche 12, 60131 Ancona,
Italy
| | - Francesca Tittarelli
- Department of Materials, Environmental Sciences and
Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM
Research Unit, via Brecce Bianche 12, 60131 Ancona,
Italy
| | - Günther Rupprechter
- Institute of Materials Chemistry, TU
Wien, Getreidemarkt 9/BC, A-1060 Vienna, Austria
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Segneanu AE, Vlase G, Vlase T, Ciocalteu MV, Bejenaru C, Buema G, Bejenaru LE, Boia ER, Dumitru A, Boia S. Romanian Wild-Growing Chelidonium majus-An Emerging Approach to a Potential Antimicrobial Engineering Carrier System Based on AuNPs: In Vitro Investigation and Evaluation. PLANTS (BASEL, SWITZERLAND) 2024; 13:734. [PMID: 38475580 DOI: 10.3390/plants13050734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 02/21/2024] [Accepted: 03/01/2024] [Indexed: 03/14/2024]
Abstract
Novel nanotechnology based on herbal products aspires to be a high-performing therapeutic platform. This study reports the development of an original engineering carrier system that jointly combines the pharmacological action of Chelidonium majus and AuNPs, with unique properties that ensure that the limitations imposed by low stability, toxicity, absorption, and targeted and prolonged release can be overcome. The metabolite profile of Romanian wild-grown Chelidonium majus contains a total of seventy-four phytochemicals belonging to eight secondary metabolite categories, including alkaloids, amino acids, phenolic acids, flavonoids, carotenoids, fatty acids, sterols, and miscellaneous others. In this study, various techniques (XRD, FTIR, SEM, DLS, and TG/DTG) were employed to investigate his new carrier system's morpho-structural and thermal properties. In vitro assays were conducted to evaluate the antioxidant potential and release profile. The results indicate 99.9% and 94.4% dissolution at different pH values for the CG-AuNPs carrier system and 93.5% and 85.26% for greater celandine at pH 4 and pH 7, respectively. Additionally, three in vitro antioxidant assays indicated an increase in antioxidant potential (flavonoid content 3.8%; FRAP assay 24.6%; and DPPH 24.4%) of the CG-AuNPs carrier system compared to the herb sample. The collective results reflect the system's promising perspective as a new efficient antimicrobial and anti-inflammatory candidate with versatile applications, ranging from target delivery systems, oral inflammation (periodontitis), and anti-age cosmetics to extending the shelf lives of products in the food industry.
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Affiliation(s)
- Adina-Elena Segneanu
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz nr. 4, 300223 Timisoara, Romania
| | - Gabriela Vlase
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz nr. 4, 300223 Timisoara, Romania
- Research Center for Thermal Analysis for Environmental Problems, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania
| | - Titus Vlase
- Institute for Advanced Environmental Research-West, University of Timisoara (ICAM-WUT), Oituz nr. 4, 300223 Timisoara, Romania
- Research Center for Thermal Analysis for Environmental Problems, West University of Timisoara, Pestalozzi St. 16, 300115 Timisoara, Romania
| | - Maria-Viorica Ciocalteu
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania
| | - Cornelia Bejenaru
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania
| | - Gabriela Buema
- National Institute of Research and Development for Technical Physics, 47 Mangeron Blvd., 700050 Iasi, Romania
| | - Ludovic Everard Bejenaru
- Faculty of Pharmacy, University of Medicine and Pharmacy Craiova, St. Petru Rareș 2, 200349 Craiova, Romania
| | - Eugen Radu Boia
- Department of Ear, Nose, and Throat, Faculty of Medicine, "Victor Babeș" University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
| | - Andrei Dumitru
- Faculty of Sciences, Physical Education and Informatics-Department of Medical Assistance and Physiotherapy, National University for Science and Technology Politehnica Bucharest, University Center of Pitesti, St. Targu din Vale 1, 110040 Pitesti, Romania
| | - Simina Boia
- Department of Periodontology, Faculty of Dental Medicine, Anton Sculean Research Center for Periodontal and Peri-Implant Diseases, "Victor Babeș" University of Medicine and Pharmacy Timisoara, 2 Eftimie Murgu Sq., 300041 Timisoara, Romania
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Colli-Pacheco JP, Rios-Soberanis CR, Moo‑Huchin VM, Perez-Pacheco E. Study of the incorporation of oleoresin Capsicum as an interfacial agent in starch-poly(lactic acid) bilayer films. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04497-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Romanian Viscum album L.—Untargeted Low-Molecular Metabolomic Approach to Engineered Viscum–AuNPs Carrier Assembly. PLANTS 2022; 11:plants11141820. [PMID: 35890454 PMCID: PMC9316836 DOI: 10.3390/plants11141820] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/05/2022] [Accepted: 07/06/2022] [Indexed: 12/17/2022]
Abstract
Viscum is one of the most famous and appreciated medicinal plants in Europe and beyond. The symbiotic relationship with the host tree and various endogenous and ecological aspects are the main factors on which the viscum metabolites’ profiles depend. In addition, European traditional medicine mentions that only in two periods of the year (summer solstice and winter solstice) the therapeutic potential of the plant is at its maximum. Many studies have investigated the phytotherapeutic properties of viscum grown on different species of trees. However, studies on Romanian viscum are relatively few and refer mainly to the antioxidant and antiproliferative activity of mistletoe grown on Acer campestre, Fraxinus excelsior, Populus nigra, Malus domestica, or Robinia pseudoacacia. This study reports the first complete low-molecular-weight metabolite profile of Romanian wild-grown European viscum. A total of 140 metabolites were identified under mass spectra (MS) positive mode from 15 secondary metabolite categories: flavonoids, amino acids and peptides, terpenoids, phenolic acids, fatty acids, organic acids, nucleosides, alcohols and esters, amines, coumarins, alkaloids, lignans, steroids, aldehydes, and miscellaneous. In addition, the biological activity of each class of metabolite is discussed. The development of a simple and selective phyto-engineered AuNPs carrier assembly is reported and an evaluation of the nanocarrier system’s morpho-structure is performed, to capitalize on the beneficial properties of viscum and AuNPs.
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Butnariu M, Peana M, Sarac I, Chirumbolo S, Tzoupis H, Chasapis CT, Bjørklund G. Analytical and in silico study of the inclusion complexes between tropane alkaloids atropine and scopolamine with cyclodextrins. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01742-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
AbstractDatura stramonium L. (Solanaceae) possesses a rich tropane alkaloids (TAs) spectrum. The plant contains, in particular, the allelopathic compounds scopolamine and atropine, which are poorly soluble in water, thus limiting their use in agrochemical formulations as biocidal and deterrent agents against herbivore insects. The efficacy of the hydrophobic TAs extracts could be increased with the improvement of their dissolution/leaching properties. This is important for improving screening and test performance and for elucidating the activity of environmentally friendly agricultural approaches, with new perspectives for the production and use of those biodegradable insecticidal products. The present study explores the aspects of atropine and scopolamine complexation with cyclodextrin (CDs) through FT-IR and UV–Vis spectroscopies. In addition, the structures of the inclusion complex of atropine, scopolamine and β-CD have been investigated by molecular modeling techniques. The results obtained indicate that β-CDs are a promising carriers for improving the properties of TAs, therefore increasing their application potential in agrochemical formulations.
Graphic abstract
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Kinda PT, Nacoulma AP, Guenné S, Compaoré M, Djandé A, Lagnika L, Kiendrébéogo M. The Metabolomic study of Calotropis procera Ait. from Burkina Faso, based on chemical functional groups profiling using FTIR. JOURNAL OF COMPLEMENTARY & INTEGRATIVE MEDICINE 2020; 17:jcim-2019-0134. [PMID: 32543456 DOI: 10.1515/jcim-2019-0134] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 09/27/2019] [Indexed: 11/15/2022]
Abstract
Background C. procera is an important wild medicinal plant used in different area of Burkina Faso for the neuropsychiatric disorders treatment. It was reported to possess many pharmacological properties because of its phytochemical diversity. This study was carried out to identify possible specific chemical characteristics form C. procera leaves and root-bark samples, harvested in two regions of Burkina Faso, for a better selective use of specimens in traditional medicine. Methods Plant materials (leaves and root-bark) were collected from five sites in each region. Samples powders and extracts were mixed with potassium bromide for the Fourier Transform Infrared Spectroscopy (FTIR) analysis. A multivariate data analysis was performed to highlight differences in the FTIR spectral profile of samples. Therefore, phytochemical contents such as phenolics, flavonoids and terpenoids were evaluated with aqueous and methanolic extracts, using UV/visible light spectrophotometer method. Results Results of principal component analysis (PCA) showed a significant difference between leaves and root-bark spectral profile, independently to the region of collection. These profiles possess characteristic signals which could be exploited as biomarkers for plant organ discrimination. The phytochemical contents evaluation showed that C. procera leaves contain more significant phenolics, and root-bark possess more terpenoid compounds. This study of C. procera Ait. based on FTIR spectral characteristic and phytochemical content, suggest that terpenoids, notably cardenolide-type could be a good biomarkers for C. procera samples characterization and to explain root-bark therapeutic potential.
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Affiliation(s)
- Prosper T Kinda
- Laboratory of Applied Biochemistry and Chemistry (LA.BIO.C.A), University Joseph KI-ZERBO, 03 P. O. Box: 7021, Ouagadougou 03, Kadiogo, Burkina Faso
| | - Aminata P Nacoulma
- Laboratory of Applied Biochemistry and Chemistry (LA.BIO.C.A), University Joseph KI-ZERBO, 03 P. O. Box: 7021, Ouagadougou 03, Kadiogo, Burkina Faso
| | - Samson Guenné
- Laboratory of Applied Biochemistry and Chemistry (LA.BIO.C.A), University Joseph KI-ZERBO, 03 P. O. Box: 7021, Ouagadougou 03, Kadiogo, Burkina Faso
| | - Moussa Compaoré
- Laboratory of Applied Biochemistry and Chemistry (LA.BIO.C.A), University Joseph KI-ZERBO, 03 P. O. Box: 7021, Ouagadougou 03, Kadiogo, Burkina Faso
| | - Abdoulaye Djandé
- Laboratoiry of Molecular Chemistry and Materials (LCMM), Organic Chemistry and Phtochemistry Team, University Joseph KI-ZERBO, Ouagadougou, Burkina Faso
| | - Latifou Lagnika
- Laboratory of Biochemistry and Bioactives Natural Substances, University of Abomey-calavi, 01 P. O Box: 348, Cotonou, Benin
| | - Martin Kiendrébéogo
- Laboratory of Applied Biochemistry and Chemistry (LA.BIO.C.A), University Joseph KI-ZERBO, 03 P. O. Box: 7021, Ouagadougou 03, Kadiogo, Burkina Faso
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Hwang IM, Lee HW, Lee HM, Yang JS, Seo HY, Chung YJ, Kim SH. Rapid and Simultaneous Quantification of Five Quinolizidine Alkaloids in Lupinus angustifolius L. and Its Processed Foods by UPLC-MS/MS. ACS OMEGA 2020; 5:20825-20830. [PMID: 32875217 PMCID: PMC7450503 DOI: 10.1021/acsomega.0c01929] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/15/2020] [Indexed: 06/11/2023]
Abstract
Quinolizidine alkaloids (QAs) are toxic secondary metabolites of Lupinus plants. This study reports the simultaneous quantification of five alkaloids from Lupinus angustifolius L. and its processed foods by ultraperformance liquid chromatography with electrospray ionization mass spectrometric detection. After optimizing the extraction conditions, the analytical method was validated for the QAs in lupin beans and in three major processed foods through detection and quantification limits, linearity, precision, and accuracy. The detection and quantification limits of the QAs were 0.5-1.7 and 1.5-5.7 mg kg-1, respectively. The linearity was greater than 0.9992 and the precision was less than 3.1%. The recoveries of three different concentrations of each QA were 89.5-106.2%. For both raw lupin beans and processed foods, lupanine was the major QA, and 13-hydroxylupanine and angustifoline were detected in lower amounts. This method could be widely used for accurate risk assessment of QAs.
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Affiliation(s)
- In Min Hwang
- Hygienic Safety
and Analysis Center, World Institute of
Kimchi, Gwangju 61755, Republic of Korea
| | - Hae-Won Lee
- Hygienic Safety
and Analysis Center, World Institute of
Kimchi, Gwangju 61755, Republic of Korea
| | - Hee Min Lee
- Hygienic Safety
and Analysis Center, World Institute of
Kimchi, Gwangju 61755, Republic of Korea
| | - Ji-Su Yang
- Hygienic Safety
and Analysis Center, World Institute of
Kimchi, Gwangju 61755, Republic of Korea
| | - Hye Young Seo
- Hygienic Safety
and Analysis Center, World Institute of
Kimchi, Gwangju 61755, Republic of Korea
| | - Yun-Jo Chung
- Center
for University-Wide Research Facilities, Chonbuk National University, Chonbuk 54896, Republic of Korea
| | - Sung Hyun Kim
- Hygienic Safety
and Analysis Center, World Institute of
Kimchi, Gwangju 61755, Republic of Korea
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Mayr S, Schmelzer J, Kirchler CG, Pezzei CK, Beć KB, Grabska J, Huck CW. Theae nigrae folium: Comparing the analytical performance of benchtop and handheld near-infrared spectrometers. Talanta 2020; 221:121165. [PMID: 33076045 DOI: 10.1016/j.talanta.2020.121165] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/12/2020] [Accepted: 05/15/2020] [Indexed: 12/20/2022]
Abstract
We investigated caffeine and l-theanine, quality characteristics for camellia sinensis, in milled and ground black tea samples with near-infrared (NIR) spectroscopy giving a direct comparison between the performances of benchtop and handheld NIR spectrometers. The constructed partial least squares regression (PLSR) models for all spectrometers were validated by test-set-validation and according to the obtained root mean square errors of prediction (RMSEP). The performances of the spectrometers were as follows: The benchtop spectrometer NIRFlex N-500 (Büchi, Flawil, Switzerland) showed the best results for milled samples with a RMSEP of 0.14% for caffeine and 0.12% for l-theanine. For the ground samples, a RMSEP of 0.17% for caffeine and 0.12% for l-theanine was gained. While the handheld spectrometers MicroNIR 2200 (Viavi Solutions (former: JDS Uniphase Corporation), Milpitas, USA) and the microPHAZIR (Thermo Fisher Scientific, Waltham, USA) both provided good results for the prediction of caffeine in milled samples (RMSEP of 0.22% and 0.26%), only the microPHAZIR was able to satisfactorily determine the caffeine content in ground samples (RMSEP of 0.28%). The investigation of l-theanine with handheld spectrometers did not lead to convincing results, since R2 was 0.75 for milled samples while ground samples could not be calculated. Decisive differences were concluded in how different NIR instruments capture the chemical information on caffeine vs. l-theanine. The handheld spectrometers manifested limited applicability to l-theanine. Deeper insight was obtained through the detailed NIR band assignments of caffeine and l-theanine derived from quantum mechanical simulation. Narrow working spectral region of handhelds omits the characteristic absorption bands of l-theanine. Therefore, information on l-theanine content measured by the evaluated miniaturized spectrometers is insufficient to enable its effective quantification. In contrast, the most characteristic NIR absorption of caffeine matches the working spectral regions of the handheld NIR spectrometers, hence their performance is comparable with the benchtop device.
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Affiliation(s)
- Sophia Mayr
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Julia Schmelzer
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Christian G Kirchler
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Cornelia K Pezzei
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Krzysztof B Beć
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Justyna Grabska
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria
| | - Christian W Huck
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020, Innsbruck, Austria.
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Alves FS, Rodrigues Do Rego JDA, Da Costa ML, Lobato Da Silva LF, Da Costa RA, Cruz JN, Brasil DDSB. Spectroscopic methods and in silico analyses using density functional theory to characterize and identify piperine alkaloid crystals isolated from pepper ( Piper Nigrum L.). J Biomol Struct Dyn 2019; 38:2792-2799. [PMID: 31282297 DOI: 10.1080/07391102.2019.1639547] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Fabrine Silva Alves
- Program of Post-Graduation in Medicinal Chemistry and Molecular Modeling, Federal University of Pará, Belém, Brazil
| | | | | | | | | | - Jorddy Neves Cruz
- Adolpho Ducke Laboratory, Emílio Goeldi Paraense Museum, Belém, Brazil
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Suryawanshi B, Mohanty B. Modeling and optimization of process parameters for supercritical CO2 extraction of Argemone mexicana (L.) seed oil. CHEM ENG COMMUN 2018. [DOI: 10.1080/00986445.2018.1547712] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Bhupendra Suryawanshi
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
| | - Bikash Mohanty
- Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
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Soto-Barajas MC, Zabalgogeazcoa I, González-Martin I, Vázquez-de-Aldana BR. Near-infrared spectroscopy allows detection and species identification of Epichloë endophytes in Lolium perenne. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:5037-5044. [PMID: 29603231 DOI: 10.1002/jsfa.9038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 02/07/2018] [Accepted: 03/23/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Perennial ryegrass (Lolium perenne) is systemically infected by seed-transmitted fungal endophytes (Epichloë sp.). The presence of Epichloë endophytes alters the nutritive quality of its hosts by modifying several plant traits. The aim of this research was to develop a fast method based on near-infrared reflectance spectroscopy (NIRS) to discriminate between perennial ryegrass plants infected (E+) or not infected (E-) with two endophyte species, Epichloë festucae var. lolii, and Epichloë typhina, using a heterogonous set of perennial ryegrass samples collected from wild grasslands and cultivars. Epichloë festucae var. lolii cultures show two morphotypes, M1 and M3, and Epichloë typhina cultures have a different M2 morphotype. RESULTS Near-infrared reflectance spectra from E+ and E- ryegrass plants were recorded. Applying the best NIRS model for the detection of Epichloë, 93.3% of E+ plants were classified correctly. The NIRS morphotype classification was correct for 92.9% of M1 morphotype and 100% of M2 morphotypes. The NIRS classification of M3 morphotypes was not as accurate, but it was in accordance with the fungal species classification, identifying some M3 as M1 morphotypes. CONCLUSION Near-infrared reflectance spectroscopy can detect the presence of Epichloë fungal endophytes directly in samples of perennial ryegrass, and it is adequate for discriminating among fungal species. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Milton C Soto-Barajas
- Plant-Microorganism Interaction Unit, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Salamanca, Spain
- Instituto Tecnológico de Chiná, Campeche, Mexico
| | - Iñigo Zabalgogeazcoa
- Plant-Microorganism Interaction Unit, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Salamanca, Spain
| | - Inmaculada González-Martin
- Department of Analytical Chemistry, Nutrition and Bromatology, University of Salamanca, Salamanca, Spain
| | - Beatriz R Vázquez-de-Aldana
- Plant-Microorganism Interaction Unit, Institute of Natural Resources and Agrobiology of Salamanca (IRNASA-CSIC), Salamanca, Spain
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Zhang H, Chen Z, Li T, Chen N, Xu W, Liu S. Surface-enhanced Raman scattering spectra revealing the inter-cultivar differences for Chinese ornamental Flos Chrysanthemum: a new promising method for plant taxonomy. PLANT METHODS 2017; 13:92. [PMID: 29093743 PMCID: PMC5663062 DOI: 10.1186/s13007-017-0242-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Accepted: 10/19/2017] [Indexed: 05/15/2023]
Abstract
BACKGROUND Flos Chrysanthemi, as a part of Chinese culture for a long history, is valuable for not only environmental decoration but also the medicine and food additive. Due to their voluminously various breeds and extensive distributions worldwide, it is burdensome to make recognition and classification among numerous cultivars with conventional methods which still rest on the level of morphologic observation and description. As a fingerprint spectrum for parsing molecular information, surface-enhanced Raman scattering (SERS) could be a suitable candidate technique to characterize and distinguish the inter-cultivar differences at molecular level. RESULTS SERS spectra were used to analyze the inter-cultivar differences among 26 cultivars of Chinese ornamental Flos Chrysanthemum. The characteristic peaks distribution patterns were abstracted from SERS spectra and varied from cultivars to cultivars. For the bands distributed in the pattern map, the similarities in general showed their commonality while in the finer scales, the deviations and especially the particular bands owned by few cultivars revealed their individualities. Since the Raman peaks could characterize specific chemical components, those diversity of patterns could indicate the inter-cultivar differences at the chemical level in fact. CONCLUSION In this paper, SERS technique is feasible for distinguishing the inter-cultivar differences among Flos Chrysanthemum. The Raman spectral library was built with SERS characteristic peak distribution patterns. A new method was proposed for Flos Chrysanthemum recognition and taxonomy.
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Affiliation(s)
- Heng Zhang
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai, 200444 People’s Republic of China
| | - Zhenyi Chen
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai, 200444 People’s Republic of China
| | - Taihao Li
- Beijing Advanced Innovation Center for Imaging Technology, Capital Normal University, Beijing, 100048 People’s Republic of China
| | - Na Chen
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai, 200444 People’s Republic of China
| | - Wenjie Xu
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai, 200444 People’s Republic of China
| | - Shupeng Liu
- Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, 333 Nanchen Road, Shanghai, 200444 People’s Republic of China
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Lequeue G, Draye X, Baeten V. Determination by near infrared microscopy of the nitrogen and carbon content of tomato (Solanum lycopersicum L.) leaf powder. Sci Rep 2016; 6:33183. [PMID: 27634485 PMCID: PMC5025744 DOI: 10.1038/srep33183] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Accepted: 08/22/2016] [Indexed: 11/09/2022] Open
Abstract
Near infrared microscopy (NIRM) has been developed as a rapid technique to predict the chemical composition of foods, reduce analytical costs and time and ease sample preparation. In this study, NIRM has been evaluated as an alternative to classical chemical analysis to determine the nitrogen and carbon content of small samples of tomato (Solanum lycopersicum L.) leaf powder. Near infrared spectra were obtained by NIRM for independent leaf samples collected on 216 plants grown under six different levels of nitrogen. From these, 30 calibration and 30 validation samples covering the spectral range of the whole set were selected and their nitrogen and carbon contents were determined by a reference method. The calibration model obtained for nitrogen content proved to be excellent, with a coefficient of determination in calibration (R(2)c) higher than 0.9 and a ratio of performance to deviation (RPDc) higher than 3. Statistical indicators of prediction using the validation set were also very high (R(2)p values > 0.90). However, the calibration model obtained for carbon content was much less satisfactory (R(2)c < 0.50). NIRM appears as a promising and suitable tool for a rapid, non-destructive and reliable determination of nitrogen content of tiny samples of tomato leaf powder.
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Affiliation(s)
- Gauthier Lequeue
- Université catholique de Louvain, Earth and Life Institute - Agronomy (ELI-A), de Serres Building, Croix du Sud 2, L7.05.11, 1348 Louvain-la-Neuve, Belgium
| | - Xavier Draye
- Université catholique de Louvain, Earth and Life Institute - Agronomy (ELI-A), de Serres Building, Croix du Sud 2, L7.05.11, 1348 Louvain-la-Neuve, Belgium
| | - Vincent Baeten
- Walloon Agricultural Research Centre. Valorisation of Agricultural Products Department, Food and Feed quality Unit, Henseval Building, Chaussée de Namur 24, 5030 Gembloux, Belgium
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Guo M, Wang K, Hamill N, Lorimer K, Li M. Investigating the Influence of Polymers on Supersaturated Flufenamic Acid Cocrystal Solutions. Mol Pharm 2016; 13:3292-307. [PMID: 27494289 DOI: 10.1021/acs.molpharmaceut.6b00612] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The development of enabling formulations is a key stage when demonstrating the effectiveness of pharmaceutical cocrystals to maximize the oral bioavailability for poorly water soluble drugs. Inhibition of drug crystallization from a supersaturated cocrystal solution through a fundamental understanding of the nucleation and crystal growth is important. In this study, the influence of the three polymers of polyethylene glycol (PEG), polyvinylpyrrolidone (PVP), and a copolymer of N-vinly-2-pyrrodidone (60%) and vinyl acetate (40%) (PVP-VA) on the flufenamic acid (FFA) crystallization from three different supersaturated solutions of the pure FFA and two cocrystals of FFA-NIC CO and FFA-TP CO has been investigated by measuring nucleation induction times and desupersaturation rates in the presence and absence of seed crystals. It was found that the competition of intermolecular hydrogen bonding among drug/coformer, drug/polymer, and coformer/polymer was a key factor responsible for maintaining supersaturation through nucleation inhibition and crystal growth modification in a cocrystal solution. The supersaturated cocrystal solutions with predissolved PEG demonstrated more effective stabilization in comparison to the pure FFA in the presence of the same polymer. In contrast, neither of the two cocrystal solutions, in the presence of PVP or PVP-VA, exhibited a better performance than the pure FFA with the same predissolved polymer. The study suggests that the selection of a polymeric excipient in a cocrystal formulation should not be solely dependent on the interplay of the parent drug and polymer without considering the coformer effects.
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Affiliation(s)
- Minshan Guo
- School of Pharmacy, De Montfort University , Leicester LE1 9BH, U.K
| | - Ke Wang
- School of Pharmacy, De Montfort University , Leicester LE1 9BH, U.K
| | - Noel Hamill
- Almac Science, Seagoe Industrial Estate , Craigavon BT63 5QD, U.K
| | - Keith Lorimer
- Almac Science, Seagoe Industrial Estate , Craigavon BT63 5QD, U.K
| | - Mingzhong Li
- School of Pharmacy, De Montfort University , Leicester LE1 9BH, U.K
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