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Daute M, Jack F, Walker G. The potential for Scotch Malt Whisky flavour diversification by yeast. FEMS Yeast Res 2024; 24:foae017. [PMID: 38684485 PMCID: PMC11095643 DOI: 10.1093/femsyr/foae017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/13/2024] [Accepted: 04/28/2024] [Indexed: 05/02/2024] Open
Abstract
Scotch Whisky, a product of high importance to Scotland, has gained global approval for its distinctive qualities derived from the traditional production process, which is defined in law. However, ongoing research continuously enhances Scotch Whisky production and is fostering a diversification of flavour profiles. To be classified as Scotch Whisky, the final spirit needs to retain the aroma and taste of 'Scotch'. While each production step contributes significantly to whisky flavour-from malt preparation and mashing to fermentation, distillation, and maturation-the impact of yeast during fermentation is crucially important. Not only does the yeast convert the sugar to alcohol, it also produces important volatile compounds, e.g. esters and higher alcohols, that contribute to the final flavour profile of whisky. The yeast chosen for whisky fermentations can significantly influence whisky flavour, so the yeast strain employed is of high importance. This review explores the role of yeast in Scotch Whisky production and its influence on flavour diversification. Furthermore, an extensive examination of nonconventional yeasts employed in brewing and winemaking is undertaken to assess their potential suitability for adoption as Scotch Whisky yeast strains, followed by a review of methods for evaluating new yeast strains.
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Affiliation(s)
- Martina Daute
- Division of Engineering and Food Sciences, School of Applied Sciences, Abertay University, Bell St, DD1 1HG, Dundee, Scotland
- The Scotch Whisky Research Institute, Research Ave N, EH14 4AP, Edinburgh, Scotland
| | - Frances Jack
- The Scotch Whisky Research Institute, Research Ave N, EH14 4AP, Edinburgh, Scotland
| | - Graeme Walker
- Division of Engineering and Food Sciences, School of Applied Sciences, Abertay University, Bell St, DD1 1HG, Dundee, Scotland
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Okolo CA, Kilcawley KN, O'Connor C. Recent advances in whiskey analysis for authentication, discrimination, and quality control. Compr Rev Food Sci Food Saf 2023; 22:4957-4992. [PMID: 37823807 DOI: 10.1111/1541-4337.13249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 08/29/2023] [Accepted: 09/12/2023] [Indexed: 10/13/2023]
Abstract
In order to safeguard authentic whiskey products from fraudulent or counterfeit practices, high throughput solutions that provide robust, rapid, and reliable solutions are required. The implementation of some analytical strategies is quite challenging or costly in routine analysis. Qualitative screening of whiskey products has been explored, but due to the nonspecificity of the chemical compounds, a more quantitative confirmatory technique is required to validate the result of the whiskey analysis. Hence, combining analytical and chemometric methods has been fundamental in whiskey sample differentiation and classification. A comprehensive update on the most relevant and current analytical techniques, including spectroscopic, chromatographic, and novel technologies employed within the last 5 years in whiskey analysis for authentication, discrimination, and quality control, are presented. Furthermore, the technical challenges in employing these analytical techniques, future trends, and perspectives are emphasized.
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Affiliation(s)
- Chioke A Okolo
- FOCAS Research Institute, Technological University Dublin, Dublin, Ireland
- School of Food Science & Environmental Health, Technological University Dublin, Dublin, Ireland
| | - Kieran N Kilcawley
- Food Quality & Sensory Science Department, Teagasc Food Research Centre, Co Cork, Ireland
- School of Food and Nutritional Sciences, College of Science, Engineering and Food Science, University College Cork, Cork, Ireland
| | - Christine O'Connor
- School of Food Science & Environmental Health, Technological University Dublin, Dublin, Ireland
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3
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Current Technologies to Accelerate the Aging Process of Alcoholic Beverages: A Review. BEVERAGES 2022. [DOI: 10.3390/beverages8040065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aging process contributes to the sensory evolution of alcoholic beverages, producing changes in the color and flavor of the final product. Traditionally, aging has occurred by storing beverages in wooden barrels for several months or years. To meet the demand for aged beverages, there is a need for large storage areas, a large number of wooden barrels, and, consequently, large volumes of stored product. Evaporation losses can also occur. In addition to the reactions of the beverage itself, there is also a transfer of wood compounds to the drink, which is later modified by successive oxidation reactions. This study addresses the alternative methods for accelerating the aging stage of beverages. These include the use of wood fragments, ultrasound, micro-oxygenation, pulsed electric field, high hydrostatic pressure, and microwave and gamma irradiation. These methods can be applied to optimize the process of extracting wood compounds, promote free radical formation, reduce oxidation reaction time, and accelerate yeast autolysis time. This study provides examples of some of the aforementioned methods. These technologies add value to the aging process, since they contribute to the reduction of production costs and, consequently, can increase commercial competitiveness.
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DLLμE/GC-MS as a Powerful Analytical Approach to Establish the Volatilomic Composition of Different Whiskeys. BEVERAGES 2022. [DOI: 10.3390/beverages8030053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The volatilomic fingerprint of nine different whiskeys was established using a rapid and sensitive analytical approach based on dispersive liquid–liquid microextraction (DLLμE) followed by gas chromatography mass spectrometry detection (GC-MS) and gas chromatography with flame ionization detection (GC-FID). The influence of the extractor solvent on the extraction efficiency of volatile compounds (VOCs) was evaluated by DLLμE/GC-MS. The highest amounts of VOCs were obtained using 5 mL of sample, dichloromethane as the extractor solvent, and acetone as the disperser solvent. The proposed method showed no matrix effect, good linearity (R2 ≥ 0.993) in the assessed concentration range, recovery (ranging from 70 to 99%, precision (RSD ≤ 15%) and sensitivity (low limits of detection and quantification). A total of 37 VOCs belonging to different biosynthetic pathways including alcohols, esters, acids, carbonyl compounds, furanic compounds and volatile phenols were identified and quantified using DLLμE/GC-MS and DLLμE/GC-FID, respectively. Alcohols (3-methylbutan-1-ol, propan-1-ol), esters (ethyl decanoate, ethyl octanoate, ethyl hexanoate), and acids (decanoic acid, octanoic acid, hexanoic acid) were the most abundant chemical families. The multivariate statistical analysis allowed for the discrimination of whiskeys based on their volatilomic fingerprint, namely octanoic acid, 2-furfural, ethyl octanoate, ethyl hexanoate, acetic acid, ethyl dodecanoate, butan-1-ol, and ethyl decanoate.
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Mucha L, Vámosi K, Totth G. Examining the factors shaping consumer attitude towards the popular alcoholic beverages in Hungary. Heliyon 2022; 8:e10571. [PMID: 36158086 PMCID: PMC9494233 DOI: 10.1016/j.heliyon.2022.e10571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 04/20/2022] [Accepted: 09/02/2022] [Indexed: 12/05/2022] Open
Abstract
The study of consumer attitudes is particularly important for products related to tradition. Pálinka is Hungary's national beverage; the homemade distillate is primarily legally different from pálinka and it cannot be marketed. The main goal of the research is to analyse the role of the three attitude components (cognitive, affective and conative), consumer ethnocentrism and drinking motives in shaping the consumer attitude towards the Hungarian pálinka and the homemade distillate and a popular, but not Hungarian beverage, whisky. Data were collected by questionnaires using a quota sampling method, resulting in a sample of 626 respondents. In this paper we demonstrate the importance of the affective component using structural equation modelling, and the way consumer ethnocentrism influences the favorable consumer attitude to homemade distillate through emotions. The study has revealed the opposite effect of consumer ethnocentrism in the case of whisky, and the lack of effect in the case of pálinka. The social alcohol drinking motivation also shapes the favorable consumer attitudes towards the homemade distillate and whisky. The consumer preference is also supported by using the Multiattribute Attitude Model and the conjoint-analysis. The scientific value of the study lies in using different methods for understanding the factors that can shape the consumer attitude towards national beverages. Improving the consumer attitude towards pálinka requires a comprehensive marketing strategy covering all three attitudinal components, and from a consumer ethnocentrism perspective, the positioning of pálinka as a national drink needs to be strengthened by the producers. The study has ignored the role of brand, tradition, packaging and nostalgia. Future research can examine the role of these factors in consumer attitude towards national alcoholic beverages. By inserting the conceptual model of this study into the Theory of Planned Behaviour model, the effects of the subjective norms and perceived behavioral control can also be analysed.
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Affiliation(s)
- László Mucha
- Marketing Department, Hungarian University of Agriculture and Life Sciences, 1. Páter Károly Str., Gödöllő, 2100, Hungary
| | - Kornélia Vámosi
- Marketing Department, Faculty of International Management and Business, Budapest Business School University, 22-24. Diósy Lajos Str., Budapest, 1165, Hungary
| | - Gedeon Totth
- Marketing Department, Faculty of International Management and Business, Budapest Business School University, 22-24. Diósy Lajos Str., Budapest, 1165, Hungary
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Chen S, Lu J, Qian M, He H, Li A, Zhang J, Shen X, Gao J, Xu Y. Untargeted Headspace-Gas Chromatography-Ion Mobility Spectrometry in Combination with Chemometrics for Detecting the Age of Chinese Liquor (Baijiu). Foods 2021; 10:foods10112888. [PMID: 34829169 PMCID: PMC8621296 DOI: 10.3390/foods10112888] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/17/2021] [Accepted: 11/17/2021] [Indexed: 01/19/2023] Open
Abstract
This paper proposes the combination of headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS) and chemometrics as a method to detect the age of Chinese liquor (Baijiu). Headspace conditions were optimized through single-factor optimization experiments. The optimal sample preparation involved diluting Baijiu with saturated brine to 15% alcohol by volume. The sample was equilibrated at 70 °C for 30 min, and then analyzed with 200 μL of headspace gas. A total of 39 Baijiu samples from different vintages (1998–2019) were collected directly from pottery jars and analyzed using HS-GC-IMS. Partial least squares regression (PLSR) analysis was used to establish two discriminant models based on the 212 signal peaks and the 93 identified compounds. Although both models were valid, the model based on the 93 identified compounds discriminated the ages of the samples more accurately according to the goodness of fit value (R2) and the root mean square error of prediction (RMSEP), which were 0.9986 and 0.244, respectively. Nineteen compounds with variable importance for prediction (VIP) scores > 1, including 11 esters, 4 alcohols, and 4 aldehydes, played vital roles in the model established by the 93 identified compounds. Overall, we determined that HS-GC-IMS combined with PLSR could serve as a rapid and accurate method for detecting the age of Baijiu.
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Affiliation(s)
- Shuang Chen
- Laboratory of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science & Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China; (S.C.); (J.L.); (J.Z.); (J.G.)
| | - Jialing Lu
- Laboratory of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science & Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China; (S.C.); (J.L.); (J.Z.); (J.G.)
| | - Michael Qian
- Department of Food Science & Technology, Oregon State University, Corvallis, OR 97331, USA;
| | - Hongkui He
- The Center for Solid-State Fermentation Engineering of Anhui Province, Bozhou 236820, China; (H.H.); (A.L.); (X.S.)
| | - Anjun Li
- The Center for Solid-State Fermentation Engineering of Anhui Province, Bozhou 236820, China; (H.H.); (A.L.); (X.S.)
| | - Jun Zhang
- Laboratory of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science & Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China; (S.C.); (J.L.); (J.Z.); (J.G.)
| | - Xiaomei Shen
- The Center for Solid-State Fermentation Engineering of Anhui Province, Bozhou 236820, China; (H.H.); (A.L.); (X.S.)
| | - Jiangjing Gao
- Laboratory of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science & Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China; (S.C.); (J.L.); (J.Z.); (J.G.)
- The Center for Solid-State Fermentation Engineering of Anhui Province, Bozhou 236820, China; (H.H.); (A.L.); (X.S.)
| | - Yan Xu
- Laboratory of Brewing Microbiology and Applied Enzymology, Key Laboratory of Industrial Biotechnology of Ministry of Education, State Key Laboratory of Food Science & Technology, School of Biotechnology, Jiangnan University, Wuxi 214122, China; (S.C.); (J.L.); (J.Z.); (J.G.)
- Correspondence: ; Tel.: +86-510-8591-8201
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Winstel D, Bahammou D, Albertin W, Waffo-Téguo P, Marchal A. Untargeted LC-HRMS profiling followed by targeted fractionation to discover new taste-active compounds in spirits. Food Chem 2021; 359:129825. [PMID: 33940473 DOI: 10.1016/j.foodchem.2021.129825] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 11/19/2022]
Abstract
Taste is a key driver of food and beverage acceptability due to its role in consumers' pleasure. The great interest that natural food and beverages now arouse lies notably in the complexity of their taste, which in turn is related to a wide range of taste-active compounds. Going beyond the classic divide between targeted and untargeted strategies, an integrative methodology to spirits was applied. Untargeted profiling of several cognac spirits was implemented by LC-HRMS to identify compounds of interest among hundreds of ions. A targeted fractionation protocol was then developed. By using HRMS and NMR, dihydrodehydrodiconiferyl alcohol was identified and described for the first time in spirits and oak wood. It was characterized as sweet at 2 mg/L in two matrices and was quantified in spirits up to 4 mg/L. These findings demonstrated how this methodology is relevant and effective to discover new taste-active compounds.
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Affiliation(s)
- Delphine Winstel
- Univ. Bordeaux, Unité de Recherche Œnologie, EA 4577, USC 1366 INRA, ISVV, 33882 Villenave d'Ornon Cedex, France.
| | - Delphine Bahammou
- Univ. Bordeaux, Unité de Recherche Œnologie, EA 4577, USC 1366 INRA, ISVV, 33882 Villenave d'Ornon Cedex, France.
| | - Warren Albertin
- Univ. Bordeaux, Unité de Recherche Œnologie, EA 4577, USC 1366 INRA, ISVV, 33882 Villenave d'Ornon Cedex, France.
| | - Pierre Waffo-Téguo
- Univ. Bordeaux, Unité de Recherche Œnologie, EA 4577, USC 1366 INRA, ISVV, 33882 Villenave d'Ornon Cedex, France.
| | - Axel Marchal
- Univ. Bordeaux, Unité de Recherche Œnologie, EA 4577, USC 1366 INRA, ISVV, 33882 Villenave d'Ornon Cedex, France.
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Characterisation of single malt Scotch Whisky using low powered ultrasound and UV‐Visible spectroscopy. JOURNAL OF THE INSTITUTE OF BREWING 2020. [DOI: 10.1002/jib.633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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9
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Stockwell M, Goodall I, Uhrín D. Quantification of whisky congeners by
1
H NMR spectroscopy. ACTA ACUST UNITED AC 2020. [DOI: 10.1002/ansa.202000063] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Marc Stockwell
- EaStCHEM School of Chemistry Joseph Black Building University of Edinburgh Edinburgh UK
| | - Ian Goodall
- The Robertson Trust Building Research Avenue North, Riccarton The Scotch Whisky Research Institute Edinburgh UK
| | - Dušan Uhrín
- EaStCHEM School of Chemistry Joseph Black Building University of Edinburgh Edinburgh UK
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Cao G, Li K, Guo J, Lu M, Hong Y, Cai Z. Mass Spectrometry for Analysis of Changes during Food Storage and Processing. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6956-6966. [PMID: 32516537 DOI: 10.1021/acs.jafc.0c02587] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Many physicochemical changes occur during food storage and processing, such as rancidity, hydrolysis, oxidation, and aging, which may alter the taste, flavor, and texture of food products and pose risks to public health. Analysis of these changes has become of great interest to many researchers. Mass spectrometry is a promising technique for the study of food and nutrition domains as a result of its excellent ability in molecular profiling, food authentication, and marker detection. In this review, we summarized recent advances in mass spectrometry techniques and their applications in food storage and processing. Furthermore, current technical challenges associated with these methodologies were discussed.
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Affiliation(s)
- Guodong Cao
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
| | - Kun Li
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
- State Key Laboratory of Cotton Biology, Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, Henan 475004, People's Republic of China
| | - Jinggong Guo
- State Key Laboratory of Cotton Biology, Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, Henan 475004, People's Republic of China
| | - Minghua Lu
- State Key Laboratory of Cotton Biology, Key Laboratory of Plant Stress Biology, School of Life Sciences, Henan University, Kaifeng, Henan 475004, People's Republic of China
| | - Yanjun Hong
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
- HKBU Institute of Research and Continuing Education, Shenzhen, Guangdong 518057, People's Republic of China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon, Hong Kong Special Administrative Region of the People's Republic of China
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