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Orbanić F, Rossi S, Bestulić E, Budić-Leto I, Kovačević Ganić K, Horvat I, Plavša T, Bubola M, Lukić I, Jeromel A, Radeka S. Applying Different Vinification Techniques in Teran Red Wine Production: Impact on Bioactive Compounds and Sensory Attributes. Foods 2023; 12:3838. [PMID: 37893731 PMCID: PMC10606038 DOI: 10.3390/foods12203838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/12/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Six different vinification treatments, including a control treatment (7-day standard maceration) (K7), were performed to study the effects of non-standard techniques on bioactive compounds and sensory attributes of Teran red wine. Pre-fermentative mash cooling (8 °C; 48 h) and heating (50 °C; 48 h) followed by prolonged post-fermentative maceration of 13 days (C15;H15) or 28 days (C30;H30) were applied. In another treatment, after cooling, saignée was performed followed by 13-day prolonged maceration (CS15). Wine phenols and vitamins were analyzed by HPLC-DAD-FLD, minerals by ICP-OES, and sensory analysis was performed using the QDA and 100-point O.I.V./U.I.O.E. methods. Obtained results showed total phenolic concentration was the highest in the H30 treatment. The concentration of anthocyanins, flavan-3-ols and phenolic acids was significantly higher in wines of all vinification techniques compared to the control. Stilbene content was highly affected by pre-fermentative heating. Treatments CS15, H15, C30 and H30 resulted in the highest scores by both the QDA and 100-point sensory methods. The obtained results suggest that advanced non-standard vinification techniques have a significant impact on Teran wine by enhancing its composition of bioactive compounds and improving its sensory profile, which gives it an additional market value. Furthermore, a comprehensive comparison of such techniques applied simultaneously in one study is of substantial importance for additional research in wine production.
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Affiliation(s)
- Fumica Orbanić
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Sara Rossi
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Ena Bestulić
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Irena Budić-Leto
- Institute for Adriatic Crops and Karst Reclamation, Put Duilova 11, 21000 Split, Croatia
| | - Karin Kovačević Ganić
- Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia;
| | - Ivana Horvat
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Tomislav Plavša
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Marijan Bubola
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Igor Lukić
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
| | - Ana Jeromel
- Department of Viticulture and Enology, Faculty of Agriculture, University of Zagreb, Svetošimunska Cesta 25, 10000 Zagreb, Croatia;
| | - Sanja Radeka
- Institute of Agriculture and Tourism, Karla Huguesa 8, 52440 Poreč, Croatia; (F.O.); (S.R.); (E.B.); (I.H.); (T.P.); (M.B.); (I.L.); (S.R.)
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Wang SY, Zhao H, Xu HT, Han XD, Wu YS, Xu FF, Yang XB, Göransson U, Liu B. Kaempferia galanga L.: Progresses in Phytochemistry, Pharmacology, Toxicology and Ethnomedicinal Uses. Front Pharmacol 2021; 12:675350. [PMID: 34737693 PMCID: PMC8560697 DOI: 10.3389/fphar.2021.675350] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/23/2021] [Indexed: 11/23/2022] Open
Abstract
K. galanga is an aromatic medicinal herb. It is locally to India and distributed in China, Myanmar, Indonesia, Malaysia, and Thailand. K. galanga is a Traditional Chinese Herb Medicine (TCHM), which has been applied to treat cold, dry cough, toothaches, rheumatism, hypertension and so on. In addition, it has been used widely as spices since its highly aromas. The aim of this review is to compile and update the current progresses of ethnomedicinal uses, phytochemistry, pharmacology and toxicology of K. galanga. All the data on K. galanga were based on different classical literary works, multiple electronic databases including SciFinder, Web of Science, PubMed, etc. The results showed that ninety-seven compounds have been identified from rhizome of K. galanga, including terpenoids, phenolics, cyclic dipeptides, flavonoids, diarylheptanoids, fatty acids and esters. Modern pharmacology studies revealed that extracts or secondary metabolites of the herb possessed anti-inflammatory, anti-oxidant, anti-tumorous, anti-bacterial, and anti-angiogenesis effects, which were closely related to its abundant ethnomedicinal uses. In conclusion, although previous research works have provided various information of K. galanga, more in-depth studies are still necessary to systemically evaluate phytochemistry, pharmacological activities, toxicity and quality control of this herb.
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Affiliation(s)
- Si-Yu Wang
- The Second Clinical Medical College, and Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China
| | - Hui Zhao
- College of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hong-Tao Xu
- Shanghai Institute for Advanced Immunochemical Studies, ShanghaiTech University, Shanghai, China
| | - Xiao-Dong Han
- The Second Clinical Medical College, and Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yun-Shan Wu
- The Second Clinical Medical College, and Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China
| | - Fang-Fang Xu
- The Second Clinical Medical College, and Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China
| | - Xiao-Bo Yang
- The Second Clinical Medical College, and Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China.,State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ulf Göransson
- Division of Pharmacognosy, Biomedical Center, Uppsala University, Uppsala, Sweden
| | - Bo Liu
- The Second Clinical Medical College, and Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou University of Chinese Medicine, Guangzhou, China.,Guangzhou Key Laboratory of Chirality Research on Active Components of Traditional Chinese Medicine, Guangzhou, China.,State Key Laboratory of Dampness Syndrome of Chinese Medicine, Guangzhou, China.,Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
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Vidigal SSMP, Rangel AOSS. Exploiting Flow-Based Separation Techniques for Sample Handling in Wine Analysis. FOOD ANAL METHOD 2021. [DOI: 10.1007/s12161-021-02138-6] [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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4
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Giacosa S, Parpinello GP, Río Segade S, Ricci A, Paissoni MA, Curioni A, Marangon M, Mattivi F, Arapitsas P, Moio L, Piombino P, Ugliano M, Slaghenaufi D, Gerbi V, Rolle L, Versari A. Diversity of Italian red wines: A study by enological parameters, color, and phenolic indices. Food Res Int 2021; 143:110277. [PMID: 33992377 DOI: 10.1016/j.foodres.2021.110277] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 10/21/2022]
Abstract
An extensive survey was conducted on 110 Italian monovarietal red wines from a single vintage to determine their standard compositional, color, and phenolic characteristics, analysing more than 35 parameters evaluated through methods commonly used in the wine industry. 'Primitivo' achieved the highest average alcohol strength (15.4% v/v) and dry extract values, while 'Cannonau' showed the lowest total acidity. 'Corvina' had the lowest phenolic content (1065 mg/L by Folin-Ciocalteu assay), remarkably different from the highest found in 'Sagrantino' (3578 mg/L), the latter being also the richest variety in both proanthocyanidins and vanillin-reactive flavanols. 'Teroldego' wines were the richest in both total and monomeric anthocyanins (702 and 315 mg/L, respectively), followed by 'Aglianico' and 'Raboso Piave', while 'Corvina', 'Nebbiolo', and 'Nerello Mascalese' were the poorest. 'Montepulciano' and 'Sangiovese' showed intermediate values for the majority of the parameters analyzed. A multivariate PCA-DA approach allowed achieving both a classification of the different wines as well as the discrimination of 'Sangiovese' wines produced in two regions (Emilia Romagna and Toscana) that returned a 42-66% success rate depending on the zone considered. Taking into account the number and diversity of the wines analyzed, a correlation study helped in better understanding the underlying relations between the most common and widespread analytical techniques for phenolic and color determinations.
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Affiliation(s)
- Simone Giacosa
- Department of Agricultural, Forest and Food Sciences, University of Torino, 10095 Grugliasco, Italy
| | | | - Susana Río Segade
- Department of Agricultural, Forest and Food Sciences, University of Torino, 10095 Grugliasco, Italy
| | - Arianna Ricci
- Department of Agricultural and Food Sciences, University of Bologna, 47521 Cesena, Italy
| | | | - Andrea Curioni
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro, Italy
| | - Matteo Marangon
- Department of Agronomy, Food, Natural Resources, Animals and Environment (DAFNAE), University of Padova, 35020 Legnaro, Italy
| | - Fulvio Mattivi
- Department of Physics, Bioorganic Chemistry Laboratory, University of Trento, 38123 Povo, Italy; Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele all'Adige, Italy
| | - Panagiotis Arapitsas
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, 38010 San Michele all'Adige, Italy
| | - Luigi Moio
- Department of Agricultural Sciences, Division of Vine and Wine Sciences, University of Napoli Federico II, 83100 Avellino, Italy
| | - Paola Piombino
- Department of Agricultural Sciences, Division of Vine and Wine Sciences, University of Napoli Federico II, 83100 Avellino, Italy
| | - Maurizio Ugliano
- Department of Biotechnology, University of Verona, 37134 Verona, Italy
| | | | - Vincenzo Gerbi
- Department of Agricultural, Forest and Food Sciences, University of Torino, 10095 Grugliasco, Italy
| | - Luca Rolle
- Department of Agricultural, Forest and Food Sciences, University of Torino, 10095 Grugliasco, Italy.
| | - Andrea Versari
- Department of Agricultural and Food Sciences, University of Bologna, 47521 Cesena, Italy
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5
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Ricci A, Teslic N, Petropolus VI, Parpinello GP, Versari A. Fast Analysis of Total Polyphenol Content and Antioxidant Activity in Wines and Oenological Tannins Using a Flow Injection System with Tandem Diode Array and Electrochemical Detections. FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1366-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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6
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Sánchez Arribas A, Moreno M, Moreno GA, Bermejo E, Zapardiel A, Chicharro M. Characterization of White Wines by Electrochemical Indexes Obtained Using Carbon Nanotube-modified Electrodes. ELECTROANAL 2018. [DOI: 10.1002/elan.201800073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Alberto Sánchez Arribas
- Dpto. Química Analítica y Análisis Instrumental; Universidad Autónoma de Madrid.; C/Francisco Tomás y Valiente 7 Madrid Spain
| | - Mónica Moreno
- Dpto. Química Analítica y Análisis Instrumental; Universidad Autónoma de Madrid.; C/Francisco Tomás y Valiente 7 Madrid Spain
| | - Gabriel A. Moreno
- Dpto. Química Analítica y Análisis Instrumental; Universidad Autónoma de Madrid.; C/Francisco Tomás y Valiente 7 Madrid Spain
| | - Esperanza Bermejo
- Dpto. Química Analítica y Análisis Instrumental; Universidad Autónoma de Madrid.; C/Francisco Tomás y Valiente 7 Madrid Spain
| | - Antonio Zapardiel
- Dpto. Ciencias Analíticas.; Universidad Nacional de Educación a Distancia.; P° Senda del Rey 9 Madrid Spain
| | - Manuel Chicharro
- Dpto. Química Analítica y Análisis Instrumental; Universidad Autónoma de Madrid.; C/Francisco Tomás y Valiente 7 Madrid Spain
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Simple and Rapid Determination of Ethanol Content in Beer Using an Amperometric Biosensor. CHEMOSENSORS 2015. [DOI: 10.3390/chemosensors3020169] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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An integrated platform for gas-diffusion separation and electrochemical determination of ethanol on fermentation broths. Anal Chim Acta 2015; 875:33-40. [DOI: 10.1016/j.aca.2015.03.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 11/23/2022]
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9
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Cuartero M, Amorim CG, Araújo AN, Ortuño JA, Montenegro MC. A SO2-selective electrode based on a Zn-porphyrin for wine analysis. Anal Chim Acta 2013; 787:57-63. [DOI: 10.1016/j.aca.2013.05.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 05/17/2013] [Accepted: 05/21/2013] [Indexed: 10/26/2022]
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10
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Analysis of total polyphenols in wines by FIA with highly stable amperometric detection using carbon nanotube-modified electrodes. Food Chem 2012. [PMID: 23194513 DOI: 10.1016/j.foodchem.2012.09.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The use of glassy carbon electrodes (GCEs) modified with multi-walled carbon nanotube (CNT) films for the continuous monitoring of polyphenols in flow systems has been examined. The performance of these modified electrodes was evaluated and compared to bare GCE by cyclic voltammetry experiments and by flow injection analysis (FIA) with amperometric detection monitoring the response of gallic, caffeic, ferulic and p-coumaric acids in 0.050 M acetate buffer pH 4.5 containing 100 mM NaCl. The GCE modified with CNT dispersions in polyethyleneimine (PEI) provided lower overpotentials, higher sensitivity and much higher signal stability under a dynamic regime than bare GCEs. These properties allowed the estimation of the total polyphenol content in red and white wines with a remarkable long-term stability in the measurements despite the presence of potential fouling substances in the wine matrix. In addition, the versatility of the electrochemical methodology allowed the selective estimation of the easily oxidisable polyphenol fraction as well as the total polyphenol content just by tuning the detection potential at +0.30 or 0.70 V, respectively. The significance of the electrochemical results was demonstrated through correlation studies with the results obtained with conventional spectrophotometric assays for polyphenols (Folin-Ciocalteu, absorbance at 280 nm index and colour intensity index).
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11
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de Villiers A, Alberts P, Tredoux AG, Nieuwoudt HH. Analytical techniques for wine analysis: An African perspective; a review. Anal Chim Acta 2012; 730:2-23. [DOI: 10.1016/j.aca.2011.11.064] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Revised: 11/15/2011] [Accepted: 11/27/2011] [Indexed: 10/14/2022]
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12
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Grindlay G, Mora J, Gras L, de Loos-Vollebregt MT. Atomic spectrometry methods for wine analysis: A critical evaluation and discussion of recent applications. Anal Chim Acta 2011; 691:18-32. [DOI: 10.1016/j.aca.2011.02.050] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2011] [Revised: 02/15/2011] [Accepted: 02/17/2011] [Indexed: 11/16/2022]
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13
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Pizarro C, González-Sáiz JM, Esteban-Díez I, Orio P. Prediction of total and volatile acidity in red wines by Fourier-transform mid-infrared spectroscopy and iterative predictor weighting. Anal Bioanal Chem 2010; 399:2061-72. [DOI: 10.1007/s00216-010-4356-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 10/11/2010] [Accepted: 10/18/2010] [Indexed: 11/24/2022]
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14
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A voltammetric electronic tongue made of modified epoxy-graphite electrodes for the qualitative analysis of wine. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0351-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Kiefer J, Leipertz A. Bestimmung des Diffusionskoeffizienten mittels Fließinjektionsanalyse. CHEM-ING-TECH 2009. [DOI: 10.1002/cite.200800174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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16
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Verma SK, Deb MK. Single-drop and nanogram level determination of sulfite (SO3(2-)) in alcoholic and nonalcoholic beverage samples based on diffuse reflectance fourier transform infrared spectroscopic (DRS-FTIR) analysis on KBr matrix. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:8319-24. [PMID: 17892255 DOI: 10.1021/jf071344c] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
The diffuse reflectance Fourier transform spectroscopic (DRS-FTIR) method, using potassium bromide matrix, has been developed for the one-drop microdetermination of sulfite in beverage samples. The present method is very simple, rapid, and precise for the determination of sulfite. The nanogram level of sulfite determination is based on the selection of a quantitative analytical peak at 495 cm (-1) among the three observed vibrational peaks obtained by diffuse reflectance Fourier transform infrared spectroscopy (DRS-FTIR). As little as a single drop of sample is sufficient for quantitative analysis of sulfite. The limit of detection (LOD) and the limit of quantification (LOQ) of the method are found to be 8 and 40 ng of SO 3 (2-) 0.1 g (-1) of KBr matrix, respectively. The linear range of the method (LR) as well as the LOD based on the concentration of sulfite in the solution are 5-500 and 0.8 microg/mL, respectively. The precision in terms of standard deviation and relative standard deviation value at a level of 100 ng of SO 3 (2-) 0.1 g (-1) of KBr for n = 10 are found to be 2 ng of SO 3 (2-) and 2.3%, respectively. The relative standard deviation ( n = 10) for the determination of sulfite in beverage samples available in the local market was observed to be in the range of 2.4-7.8%. The method is free from interionic effects of foreign species. No sample pretreatment is required in this method. The proposed method avoids the requirement of large numbers and bulk amounts of reagents. The method is well-suited to the need of green chemistry.
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Affiliation(s)
- Santosh K Verma
- School of Studies in Chemistry, Pt. Ravishankar Shukla University, Raipur 492 010, Chhattisgarh, India.
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Rocchia M, Ellena M, Zeppa G. Determination of ethyl alcohol content in red wines with an optical alcohol meter based on nanostructured silicon. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:5984-9. [PMID: 17608498 DOI: 10.1021/jf070809w] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A rapid analytical method for selectively monitoring ethyl alcohol in red wines without sample pretreatment, based on the use of an optical sensor, has been developed exploiting a porous silicon microcavity. The optical structure, realized by alternating layers of different porosities, was stabilized by thermal oxidation, and the resonant peak shift of the microcavity (projected at 600 nm) was monitored in the presence of more than 20 red wines. The resonant peak shows an increasing red shift depending on the wine alcoholic strength, which is ascribable to a change of refractive index due to physisorption/condensation of ethanol vapors inside the pores' structure. The linear response of the PS oxidized microcavity to the wine alcoholic strength insures the determination of the ethanol amount with a high accuracy and reliability. The calculated values differ by less than 0.5% to those obtained with the official method in accordance with the limits imposed by European laws. Moreover, a user-friendly interface, allowing the sensor to be used by unskilled persons, and portable packaging, able to ensure in situ measurements, have been developed.
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Affiliation(s)
- M Rocchia
- Istituto Nazionale di Ricerca Metrologica (INRIM), Strada delle Cacce 91, Turin, Italy.
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Soriano A, Pérez-Juan P, Vicario A, González J, Pérez-Coello M. Determination of anthocyanins in red wine using a newly developed method based on Fourier transform infrared spectroscopy. Food Chem 2007. [DOI: 10.1016/j.foodchem.2006.10.011] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Current awareness in phytochemical analysis. PHYTOCHEMICAL ANALYSIS : PCA 2006; 17:63-70. [PMID: 16454478 DOI: 10.1002/pca.880] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
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