ATR-FTIR Spectroscopy Coupled with Chemical and Chemometric Analysis to Distinguish Between Some Sweet Wines

FTIR Spectroscopy correlated with some chemical characteristics and chemometric analysis have been applied to distinguish between sweet wines obtained from different Romanian varieties and Canadian icewine. Chemical analyses differentiate the two categories of origin in terms of sugar content, acidity and total polyphenol content but are expensive and time-consuming. Principal Component Analysis were performed using different regions of FT-MIR spectra for all wines. Principal Component Analysis of their chemical parameters indicated that the wines can be discriminated based on their different phenolic, carbohydrates, polyols content and geographical origin. FTIR spectroscopy coupled with chemometry is a profitable technique for distinguishing between different wines and validates the results obtained by chemical analysis.

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Rapid Method for the Discrimination of Romanian Wines Based on Mid-Infrared Spectroscopy and Chemometrics

Revista de Chimie ◽

10.37358/rc.18.2.6129 ◽

2018 ◽

Vol 69 (2) ◽

pp. 469-473

Author(s):

Carmen Mihaela Topala ◽

Lavinia Diana Tataru

Keyword(s):

Principal Component Analysis ◽

Infrared Spectroscopy ◽

Multivariate Data Analysis ◽

Geographical Origin ◽

Principal Component ◽

Component Analysis ◽

Red Wines ◽

Chemical Parameters ◽

Mid Infrared ◽

Mir Spectra

ATR-FTIR Spectroscopy combined with multivariate data analysis have been applied for the discrimination of 10 different Romanian wines (white and red wines), produced in 2 wineries from Romania: Reca� and Stefanesti-Arge�s from different cultivars. Principal Component Analysis were performed using different regions of FT-MIR spectra for all wines. Principal Component Analysis of their chemical parameters indicated that the wines can be discriminated based on their different phenolic, glucides, acidity content and geographical origin.

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Benefits of applying combined diffuse reflectance FTIR spectroscopy and principal component analysis for the study of blue tempera historical painting

Analytica Chimica Acta ◽

10.1016/j.aca.2008.10.008 ◽

2008 ◽

Vol 630 (2) ◽

pp. 141-149 ◽

Cited By ~ 42

Author(s):

Natalia Navas ◽

Julia Romero-Pastor ◽

Eloisa Manzano ◽

Carolina Cardell

Keyword(s):

Principal Component Analysis ◽

Ftir Spectroscopy ◽

Diffuse Reflectance ◽

Principal Component ◽

Component Analysis ◽

Reflectance Ftir

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Discrimination of Natural Mature Acacia Honey Based on Multi-Physicochemical Parameters Combined with Chemometric Analysis

Molecules ◽

10.3390/molecules24142674 ◽

2019 ◽

Vol 24 (14) ◽

pp. 2674 ◽

Cited By ~ 3

Author(s):

Tianchen Ma ◽

Haoan Zhao ◽

Caiyun Liu ◽

Min Zhu ◽

Hui Gao ◽

...

Keyword(s):

Principal Component Analysis ◽

Physicochemical Parameters ◽

Phenolic Content ◽

Principal Component ◽

Component Analysis ◽

Chemometric Analysis ◽

Total Phenolic ◽

Total Protein Content ◽

Acacia Honey

Honey maturity is an important factor in evaluating the quality of honey. We established a method for the identification of natural mature acacia honey with eighteen physicochemical parameters combined with chemometric analysis. The analysis of variance showed significant differences between mature and immature acacia honey in physicochemical parameters. The principal component analysis explained 82.64% of the variance among samples, and indicated that total phenolic content, total protein content, and total sugar (glucose, fructose, sucrose) were the major variables. The cluster analysis and orthogonal partial least squares-discriminant analysis demonstrated that samples were grouped in relation to the maturity coinciding with the results of the principal component analysis. Meanwhile, the 35 test samples were classified with 100% accuracy with the method of multi-physicochemical parameters combined with chemometric analysis. All the results presented above proved the possibility of identifying mature acacia honey and immature acacia honey according to the chemometric analysis based on the multi-physicochemical parameters.

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Pizza Dough Differentiation by Principal Component Analysis of Alveographic, Microbiological, and Chemical Parameters

Cereal Chemistry ◽

10.1094/cc-82-0356 ◽

2005 ◽

Vol 82 (4) ◽

pp. 356-360 ◽

Cited By ~ 2

Author(s):

Andrea Formato ◽

Olimpia Pepe

Keyword(s):

Principal Component Analysis ◽

Principal Component ◽

Component Analysis ◽

Chemical Parameters

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Characteristics and discrimination of five types of wood-plastic composites by FTIR spectroscopy combined with principal component analysis

Holzforschung ◽

10.1515/hf.2010.104 ◽

2010 ◽

Vol 64 (6) ◽

Cited By ~ 20

Author(s):

Chia-Huang Lee ◽

Tung-Lin Wu ◽

Yong-Long Chen ◽

Jyh-Horng Wu

Keyword(s):

Principal Component Analysis ◽

Ftir Spectroscopy ◽

Principal Component ◽

Core Layer ◽

Component Analysis ◽

Attenuated Total Reflection ◽

Distribution Profile ◽

Data Set ◽

Wood Plastic Composites ◽

Plastic Composites

Abstract The analytical potential of attenuated total reflection-Fourier transform infrared (ATR-FTIR) spectroscopy has been tested on the following wood-plastic composites (WPCs): high and low density polyethylene (HDPE and LDPE), polypropylene (PP), polystyrene (PS), and a recycled plastic (rHDPE). The data set of ATR-FTIR spectra has been analyzed by principal component analysis (PCA) and the studied samples could be grouped according to their polymeric matrixes. Additionally, ATR-FTIR spectroscopy proved to be a useful tool for determining the distribution profile of wood and plastic materials within different types of WPCs. Accordingly, the plastic content of the surface layers of HDPE, rHDPE, and PP composites was significantly higher than that of the core layer, whereas homogenous dispersion was observed in the LDPE composite. Among all WPCs, the PS composite displayed the worst dispersion.

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A Chemometric Study of Alumina/PEEK and Hydroxyapatite/PEEK Suspensions Prepared for Electrophoretic Deposition of Multifunctional Coatings

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.66.29 ◽

2010 ◽

Vol 66 ◽

pp. 29-34 ◽

Cited By ~ 7

Author(s):

Virginia Martina ◽

M. Federica de Riccardis ◽

Daniela Carbone

Keyword(s):

Principal Component Analysis ◽

Grain Size ◽

Zeta Potential ◽

Electrophoretic Deposition ◽

Principal Component ◽

Component Analysis ◽

Chemometric Analysis ◽

Innovative Method ◽

Chemometric Tools

Poly(etherether-ketone) (PEEK) suspensions in ethanol and isopropanol containing also α-alumina and hydroxyapatite powders were studied. An innovative method was used in the study of the quality of suspensions. We studied suspensions by means of zeta potential and grain-size measurements. The comparison amongst the different suspensions was carried out by using statistical and chemometric tools, especially by the use of an explorative test based on the Principal Component Analysis (PCA). The chemometric analysis was performed by involving different combinations of each type of powder and each type of solvent.

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Rapid and Accurate Discrimination Between Pure and Adulterated Commercial Indian Honey Brands Using FTIR Spectroscopy and Principal Component Analysis

10.26434/chemrxiv.14068094 ◽

2021 ◽

Author(s):

Bipin Singh ◽

Sanmitra Barman

Keyword(s):

Principal Component Analysis ◽

Ftir Spectroscopy ◽

Principal Component ◽

Component Analysis

<p>Four leading commercial Indian honey brands were investigated using FTIR spectroscopy and principal component analysis for a rapid and accurate differentiation of pure, mildly adulterated, and highly adulterated honey brand samples. This study is first of its kind investigating commercial Indian honey brands using FTIR and PCA, hence can be used for investigating adulterations in bulk commercial honey brand samples where sophisticated instrumentations and facilities are not available.</p>

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HUBUNGAN KELIMPAHAN SPESIES LARVA IKAN DENGAN PARAMETER KUALITAS PERAIRAN DI DANAU RANAU, SUMATERA SELATAN

Jurnal Matematika Sains dan Teknologi ◽

10.33830/jmst.v20i1.99.2019 ◽

2019 ◽

Vol 20 (1) ◽

pp. 68-82

Author(s):

Tuah N. M. Wulandari ◽

Etty Riani ◽

Agnes P Sudarmo ◽

Budhi H Iskandar ◽

Nurhasanah Nurhasanah

Keyword(s):

Principal Component Analysis ◽

Oreochromis Niloticus ◽

Fish Larvae ◽

Principal Component ◽

Component Analysis ◽

Scientific Basis ◽

Policy Formation ◽

Total Alkalinity ◽

Chemical Parameters ◽

Lack Of Information

This research conducted due to lack of information about fish larvae in Ranau Lake, South Sumatera. This information is quite essential to explore because this can be used as a scientific basis for policy formation in this area. The objectives of this research are to analyze the correlation between fish larvae abundance to physicochemical parameters in Ranau Lake waters. Sampling was carried out at six stations (Muara Silabung, Dermaga, Way Maisin, Pemandian Air Panas, Lumbok, and Talang Teluk). Physico-chemical parameters measured directly in the field are temperature, pH, depth, brightness, CO2, O2, hardness, electrical conductivity, total alkalinity, and turbidity; while the chemical parameters measured in the laboratory are COD, NO2, NO3, NH3, and PO4. Larvae species identified through DNA sequence. Principal Component Analysis (PCA) was used to measure the relationship between fish larvae abundance to the water parameters. Results show that generally there were forty-two fish larvae from nine species. The dominant species was Oreochromis niloticus. The results of the Principal Component Analysis show that the highest abundance of fish larvae was in water with the highest level of turbidity and dissolved oxygen, whereas the lowest abundance was in water with the highest level nitrate and depth. Belum ada informasi tentang kelimpahan larva ikan diperairan Danau Ranau Sumatera Selatan melatarbelakangi penelitian ini. Informasi ini sangat penting untuk diketahui karena dapat dijadikan acuan dalam pengelolaan perikanan di wilayah ini. Penelitian bertujuan untuk menganalisis hubungan kelimpahan larva ikan dengan parameter fisika-kimia di perairan Danau Ranau. Pengambilan sampel dilakukan di enam stasiun (Muara Silabung, Dermaga, Way Maissin, Pemandian Air Panas, Lumbok dan Talang Teluk). Parameter fisika-kimia perairan yang diukur langsung di lapangan adalah suhu, pH, kedalaman, kecerahan, CO2, O2, kesadahan, daya hantar listrik, total alkalinitas, dan turbiditas; sedangkan parameter kimia yang diukur di laboratorim adalah COD, NO2, NO3, NH3, dan PO4. Spesies larva ikan diidentifikasi dengan sekuen DNA. Analisis Komponen Utama dilakukan untuk mengetahui hubungan antara kelimpahan larva ikan dengan parameter fisika-kimia perairan. Hasil penelitian menunjukkan secara keseluruhan ada 42 larva ikan yang berasal dari 9 spesies. Spesies yang paling dominan adalah Oreochromis niloticus. Hasil Analisis Komponen Utama menunjukkan bahwa kelimpahan larva ikan tertinggi (102,9 individu/100m3) berada pada stasiun pengamatan yang memiliki turbiditas dan oksigen terlarut tertinggi, sedangkan kelimpahan larva ikan terendah (10,83 individu/100m3) berada pada stasiun pengamatan yang memiliki kadar nitrat dan kedalaman tertinggi.

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