Results 11 to 20 of about 16,029 (248)

Spectroscopic Discrimination of Bee Pollen by Composition, Color, and Botanical Origin

Foods, 2021
Bee pollen samples were discriminated using vibrational spectroscopic methods by connecting with botanical sources, composition, and color. SEM and light microscope images of bee pollen loads were obtained and used to assess the botanical origin. Fourier
Roman Bleha, Tetiana V. Shevtsova, Martina Živčáková, Anna Korbářová, Martina Ježková, Ivan Saloň, Ján Brindza, Andriy Synytsya   +7 more
doaj   +1 more source

Evaluation of FT-Raman and FTIR-ATR spectroscopy for the quality evaluation of Lavandula spp. Honey

Open Agriculture, 2021
Monofloral Lavandula spp. honey is very appreciated by consumers due to its characteristic and pleasant aroma and flavor. Given the economic importance of this type of honey, it is important to develop a rapid and nonexpensive methodology that allows ...
Anjos Ofélia, Guiné Raquel P. F., Santos António J. A., Paula Vanessa B., Pereira Helena, Estevinho Letícia M.   +5 more
doaj   +1 more source

FT-Raman Analysis of Cellulose based Museum Textiles: Comparison of Objects Infected and Non-infected by Fungi [PDF]

Tekstilec, 2018
It is well-known fact that the supermolecular structure of museum textiles changes during aging and biodeterioration. These structural changes can be observed by different spectroscopic methods such as FT-IR, FT-Raman, and dispersive Raman spectroscopy ...
Katja Kavkler , Nina Gunde Cimerman , Polona Zalar , Andrej Demšar   +3 more
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Raman spectroscopy online monitoring of biomass production, intracellular metabolites and carbon substrates during submerged fermentation of oleaginous and carotenogenic microorganisms

Microbial Cell Factories, 2023
Background Monitoring and control of both growth media and microbial biomass is extremely important for the development of economical bioprocesses.
Simona Dzurendova, Pernille Margrethe Olsen, Dana Byrtusová, Valeria Tafintseva, Volha Shapaval, Svein Jarle Horn, Achim Kohler, Martin Szotkowski, Ivana Marova, Boris Zimmermann   +9 more
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Classification of frankfurters by FT-Raman spectroscopy and chemometric methods. [PDF]

Molecules, 2014
Frankfurters are widely consumed all over the world, and the production requires a wide range of meat and non-meat ingredients. Due to these characteristics, frankfurters are products that can be easily adulterated with lower value meats, and the presence of undeclared species.
Campos Nda S, Oliveira KS, Almeida MR, Stephani R, de Oliveira LF.   +4 more
europepmc   +4 more sources

Aplicação de espectroscopias raman e infravermelho na identificação e quantificação de plastificantes em filmes comerciais de PVC esticável Application of infrared and raman techniques in the identification and quantification of plasticizers in commercial films of PVSC

Química Nova, 2009
This paper reports the use of Raman and infrared techniques for the qualitative and quantitative analysis of plasticizers in polyvinylchloride (PVC) commercial films.
Michele Lemos de Souza, Paola Corio, Marcia L. A. Temperini, José Aparício Temperini   +3 more
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Determination of ripeness stages of Mazafati variety of date fruit by Raman spectroscopy [PDF]

Journal of Agricultural Machinery, 2016
Introduction: The economical yield of date fruits depends on many factors (Al-Shahib and Marshall, 2003). One of them is harvesting in optimum stage.
R Khodabakhshian, B Emadi
doaj   +1 more source

Spectroscopic Characterization and DFT Calculations on 1H-benzimidazole-2-carboxylic acid monohydrate Molecule

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2022
After first determining the optimized geometry of the 1H-benzimidazole-2-carboxylic acid monohydrate (1HBCM) molecule using the B3LYP/6-311+ + G (d, p) basis set, we investigated the spectroscopic properties, electronic properties and optical band gap of
Songül Çifçi, Mustafa Kurt, Emine Babur Şaş   +2 more
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Characterization of 3 fluoro-4-formylphenylboronic acid molecule with Density Functional Teory

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2018
The geometric structure of3-fluoro-4-fomylphenylboronic acid (3-4FPBA) molecule were investigated withDFT/B3LYP/6-311++G(d,p) basis set. Specra of the title molecule were observedby FT-IR and FT-Raman spectra.
Emine Babur Şaş, Mustafa Kurt
doaj   +1 more source

FT-IR, FT-Raman, UV–Visible, NMR, DFT and molecular docking investigation of 1-(phenyl (piperidin-1-yl) methyl) naphthalene-2-ol

Results in Chemistry, 2021
1-(Phenyl(piperidin-1-yl)methyl)naphthalene-2-ol was synthesized and characterized utilizing spectroscopic techniques (FT-IR, FT-Raman, UV–Visible, NMR, Mass and CHNS analysis).
P. Rajamani, V. Vijayakumar, N. Sundaraganesan, Mani Jeeva, Maria Susai Boobalan   +4 more
doaj   +1 more source