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Öztürk M, Yalçın O, Tekgündüz C, Tekgündüz E. Origin of the effects of optical spectrum and flow behaviour in determining the quality of dry fig, jujube, pomegranate, date palm and concentrated grape vinegars. Spectrochim Acta A Mol Biomol Spectrosc 2022; 270:120792. [PMID: 34990917 DOI: 10.1016/j.saa.2021.120792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 12/08/2021] [Accepted: 12/19/2021] [Indexed: 06/14/2023]
Abstract
In this study, we focused on physical characterization and quality control of dry fig, jujube, pomegranate, date palm and concentrated grape vinegars using UV spectroscopy method and rheology technique. The optical spectra and flow behaviour of the vinegars were analysed in detail in the selected specific wavelength, shear rate and frequency ranges, respectively. It was determined that the peak values seen in the UV spectra of the vinegars were caused by the organic acid and phenolic compound concentration. The peak values in the UV spectra of the vinegars wavelength range of 190 nm to 240 nm and 250 nm to 300 nm were caused by the organic acid and phenolic compound concentration, respectively. In this context, it was predicted that concentrated grape vinegar, which has the highest absorbance value, has higher organic acid content and more antibacterial/antioxidant properties compared to the others. It is thought that the optical energy gaps of vinegars are related to the organic acid concentration and the release time. Flow properties of the vinegars were non-Newtonian thickening fluids (dilatant fluids) and compatible with the Power law model. The stable flow of the vinegars in the high shear rate region was interpreted as having a successful production process and being of good quality.
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Affiliation(s)
- M Öztürk
- Program of Opticianry, Niğde Ömer Halisdemir University, 51200 Niğde, Turkey.
| | - O Yalçın
- Department of Physics, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey
| | - C Tekgündüz
- İçmeli Natural Products/ Nahita Company, 51240 Niğde, Turkey
| | - E Tekgündüz
- İçmeli Natural Products/ Nahita Company, 51240 Niğde, Turkey
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Öztürk M. Evaluation of quality the pumpkin, wild plum, pear, cabbage traditional homemade vinegars using the spectroscopy and rheology methods. Spectrochim Acta A Mol Biomol Spectrosc 2021; 259:119896. [PMID: 33992894 DOI: 10.1016/j.saa.2021.119896] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 04/17/2021] [Accepted: 04/28/2021] [Indexed: 06/12/2023]
Abstract
In this study, the quality evaluation of homemade pumpkin, pear, wild plum and cabbage vinegar produced by traditional methods was carried out using the ultraviolet (UV) spectroscopy, rheology technique and Fourier transform infrared (FTIR) spectroscopy method. The measurement of UV spectra, flow behaviours and infrared spectral fingerprints of all the vinegars were performed in the wavelength range of 190 nm to 600 nm, shear rate of 10-3 s-1 to 102 s-1 and wavenumber of 4200 c-1 to 400 cm-1 at room temperature, respectively. The quality of homemade vinegars was correlated with the UV spectra peaks, which took values with acetic acid and phenolic compound concentrations. It was determined that the absorption coefficient and optical energy gaps (Eg) which were caused by the release time, depends on the organic acids content. It was observed that the UV spectra and forbidden energy gaps of all the vinegars compatible with the Lambert-Beer-Bouguer and Tauc laws, respectively. The flow behaviour of homemade vinegars was consistent with the non-Newtonian flow, which is the signature behaviour of the dilatant (thickening) and pseudo-plastic (thinning) liquids. Moreover, it was determined that the spectral fingerprint peaks obtained from FTIR spectroscopy were caused by the mixture of acetic acid and water forming the structure of the vinegar. As a result of spectroscopy and rheological analyses, which yields compatible results with commercial tests, it is predicted that it can be safely used as health test.
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Affiliation(s)
- Muhittin Öztürk
- Program of Opticianry, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey.
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Yalçın O, Tekgündüz C, Öztürk M, Tekgündüz E. Investigation of the traditional organic vinegars by UV-VIS spectroscopy and rheology techniques. Spectrochim Acta A Mol Biomol Spectrosc 2021; 246:118987. [PMID: 33032119 DOI: 10.1016/j.saa.2020.118987] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 09/13/2020] [Accepted: 09/20/2020] [Indexed: 06/11/2023]
Abstract
Optical, rheological and metabolic properties of the apple, hawthorn, artichoke, grape, rosehip and blackberry organic vinegar produced by deep culture method (handmade traditional method) were analysed using UV-Vis spectroscopy and rheology techniques. Flow behaviours for all samples were analysed in the shear rate range of 10-3 to 103 1/s and in frequency range of 10-3 to 103rad/s, respectively. Absorption spectra for six organic vinegars was observed two peaks around 215 and 285nm due to the presence of phenolic compounds and organic acids such as acetic. The effects of optical transitions of organic molecules on the absorption coefficient values for vinegars were determined. Optical energy band gaps of all samples were found to be consistent with Planck's radiation approach known as Rayleigh-Jeans law and Tauc law. The rheological/flow properties of the all vinegars were found to be relevant with non-Newtonian flow behaviour and Ostwald-de Waele model. From the results of optical and rheological analysis, which determines the quantity and quality characteristics of all organic vinegars, it was concluded that these vinegars are in a level that people can drink easily.
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Affiliation(s)
- O Yalçın
- Department of Physics, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey.
| | - C Tekgündüz
- İçmeli Natural Products/Nahita Company, 51240 Niğde, Turkey
| | - M Öztürk
- Program of Opticianry, Niğde Ömer Halisdemir University, 51240 Niğde, Turkey
| | - E Tekgündüz
- İçmeli Natural Products/Nahita Company, 51240 Niğde, Turkey
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Wang D, Cuo Z, Li S, Zhang M, Chen Y. In situ anchored NiCo 2O 4 on a nickel foam as a monolithic catalyst by electro-deposition for improved benzene combustion performance. CrystEngComm 2020. [DOI: 10.1039/d0ce00095g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Monolithic catalysts designed by in situ electrodeposition possess a strong anchoring force and rich defects.
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Affiliation(s)
- Dongdong Wang
- State Key Laboratory of Multi-phase Complex Systems
- Institute of Process Engineering, Chinese Academy of Sciences
- Beijing 100190
- China
- University of Chinese Academy of Sciences
| | - Zhaxi Cuo
- State Key Laboratory of Multi-phase Complex Systems
- Institute of Process Engineering, Chinese Academy of Sciences
- Beijing 100190
- China
- University of Chinese Academy of Sciences
| | - Shuangde Li
- State Key Laboratory of Multi-phase Complex Systems
- Institute of Process Engineering, Chinese Academy of Sciences
- Beijing 100190
- China
| | - Min Zhang
- State Key Laboratory of Multi-phase Complex Systems
- Institute of Process Engineering, Chinese Academy of Sciences
- Beijing 100190
- China
- University of Chinese Academy of Sciences
| | - Yunfa Chen
- State Key Laboratory of Multi-phase Complex Systems
- Institute of Process Engineering, Chinese Academy of Sciences
- Beijing 100190
- China
- University of Chinese Academy of Sciences
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Wang S, Wang R, Cheng Y, Wang B, Wang Q, Yuan S, Li H, Guo P. Structural regulation of NiFe2O4 colloidal nanocrystal assembly and their magnetic and electrocatalytic properties. Colloids Surf A Physicochem Eng Asp 2019; 570:218-23. [DOI: 10.1016/j.colsurfa.2019.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fan S, Li X, Zeng L, Zhang M, Yin Z, Lian T, Chen A. Relationships Between Crystal, Internal Microstructures, and Physicochemical Properties of Copper-Zinc-Iron Multinary Spinel Hierarchical Nano-microspheres. ACS Appl Mater Interfaces 2018; 10:35919-35931. [PMID: 30252434 DOI: 10.1021/acsami.8b11382] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Rational design and fabrication of high quality complex multicomponent spinel ferrite with specific microstructures and solar light harvestings toward CO2 reduction and antibiotic degradation to future energetic and catalytic applications are highly desirable. In this study, novel copper-zinc-iron multinary spinel hierarchical nano-microspheres (MSHMs) with different internal structures (solid nano-microspheres, yolk-shell hollow nano-microspheres, and double-shelled hollow nano-microspheres) have been successfully developed by a facile self-templated solvothermal strategy. The morphology and structure, optical, as well as photoinduced redox reactions including interfacial charge carrier behaviors and the intrinsic relationship of structure-property between intrinsic nano-microstructures and physicochemical performance of copper-zinc-iron ferrite MSHMs composites were systematically investigated with the assistance of various on- and/or off- line physical-chemical means and deeply elucidated in terms of the research outcomes. It is demonstrated that the modification of the interior microstructures can be applied to tune the catalytic properties of multinary spinel by tailoring the temperature programming to fine control the two opposite forces of contraction (Fc) and adhesion (Fa). Among various internal microstructures, the obtained double-shelled copper-zinc-iron MSHMs exhibited the superior catalytic performance toward 8.8 and 38 μmol for H2 and CO productions as well as 80.4% removal of sulfamethoxazole antibiotics. As evidenced from primary characterizations, for example, combined steady-state PL, ns-TAS, and Mössbauer and sequential investigations, the remarkable improvements in the catalytic activity can be primarily attributed to several crucial factors, for example, the more effective e--h+ spatial separations and interfacial transfers, multiple internal light scattering, higher photonic energy harvesting and effective reactive oxygen species generation with long radical lifetimes. The current research provides new insights into the molecular design of novel copper-zinc-iron multinary spinels and the intrinsic relationship of structure-property between interior structures (e.g., different crystal texture, morphologies structures) and the physicochemical performance of the aforementioned multinary spinels.
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Affiliation(s)
- Shiying Fan
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Xinyong Li
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Libin Zeng
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Mingmei Zhang
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Zhifan Yin
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Tingting Lian
- State Key Laboratory of Fine Chemicals, Key Laboratory of Industrial Ecology and Environmental Engineering, School of Environmental Science and Technology , Dalian University of Technology , Dalian 116024 , China
| | - Aicheng Chen
- Electrochemical Technology Centre, Department of Chemistry , University of Guelph , 50 Stone Road E , Guelph , Ontario N1G 2W1 , Canada
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