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Zhang Q, Chen M, Emilia Coldea T, Yang H, Zhao H. Structure, chemical stability and antioxidant activity of melanoidins extracted from dark beer by acetone precipitation and macroporous resin adsorption. Food Res Int 2023; 164:112045. [PMID: 36737887 DOI: 10.1016/j.foodres.2022.112045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/03/2022] [Accepted: 10/10/2022] [Indexed: 02/07/2023]
Abstract
Melanoidins contribute to the sensory and functional properties of dark beers. The structure, stability, and antioxidant activity of acetone precipitation extracted melanoidins (APE-M) and macroporous resin adsorption extracted melanoidins (MAE-M) from dark beer were investigated. The structural properties of melanoidins were characterized using Fourier transform infrared spectroscopy (FTIR), circular dichroism (CD), scanning electron microscopy (SEM), and the solution storage stability, thermal behavior and antioxidant activity of melanoidins in dark beers were evaluated. MAE-M revealed more sophisticated structures than APE-M, including more concrete characteristics of Maillard reaction (MR) products in FTIR (1550-1500 cm-1), more ordered secondary structure in CD spectra, and thinner slices as well as more microspheres in SEM. The solution storage stability assay showed that certain factors, including 55 °C, 5 % v/v ethanol, UV light, and H2O2 solution, accelerated the degradation of melanoidins. The moderate extraction process of MAE-M performed a minor enthalpy change (-92.28 Jg-1) in the DSC-TG test than that of APE-M (-319.41 Jg-1). Furthermore, the ABTS and DPPH radical scavenging activities and the FRAP assay demonstrated that the antioxidant activity of MAE-M was almost twice that of APE-M. In general, MAE was more effective in extracting beer melanoidins while maintaining its accurate structure and profitable antioxidant activity than APE.
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Affiliation(s)
- Qiuhui Zhang
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China
| | - Moutong Chen
- Guangdong Provincial Key Laboratory of Microbial Safety and Health, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou 510070, China
| | - Teodora Emilia Coldea
- Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj-Napoca 400372, Romania
| | - Huirong Yang
- College of Food Science and Technology, Southwest Minzu University, Chengdu 610041, China
| | - Haifeng Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Research Institute for Food Nutrition and Human Health, Guangzhou 510640, China.
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2
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Cai G, Gu H, Han B, Yang H, Li X, Lu J. Characterization of the aroma compounds in crystal malt. J Food Sci 2023; 88:204-213. [PMID: 36533938 DOI: 10.1111/1750-3841.16430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 11/10/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022]
Abstract
Crystal malt, the most popular type of specialty malt used in beer brewing, plays a vital role in forming complex flavor and color. Nevertheless, crystal malt is only defined based on the malting process, and there is not any standard to evaluate its quality. In the current study, the volatile aroma constituents of commercial crystal malt samples were analyzed with headspace solid-phase microextraction combined with gas chromatography-mass spectrometry, in order to explore the characteristic aroma compounds of crystal malt. The average concentration of volatile aroma compounds in 10 crystal malt samples is 587 µg L-1 , ranging from 347 to 1265 µg L-1 . A total of 38 aroma compounds were identified, 47% of which were existed in all the 10 samples. Based on principal component analysis and odor activity value, isobutyraldehyde, 2-methylbutanal, furfural, 2-acetyl-1H-pyrrole, oct-1-en-3-ol, 4-methyl-2-phenyl-2-pentenal, and (2E)-2-isopropyl-5-methyl-2-hexenal could be considered the characteristic aroma compounds of crystal malt. The results of this present study would help to establish a standard to assess the quality traits of crystal malt sample.
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Affiliation(s)
- Guolin Cai
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, P. R. China.,National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, P. R. China.,Jiangsu Provincial Research Center for Bioactive Product Processing Technology, Jiangnan University, Wuxi, P. R. China.,School of Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Hong Gu
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, P. R. China
| | - Bingxin Han
- School of Biotechnology, Jiangnan University, Wuxi, P. R. China
| | - Hua Yang
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, P. R. China
| | - Xiaomin Li
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, P. R. China
| | - Jian Lu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi, P. R. China.,National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, P. R. China
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3
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Silva S, Oliveira AI, Cruz A, Oliveira RF, Almeida R, Pinho C. Physicochemical Properties and Antioxidant Activity of Portuguese Craft Beers and Raw Materials. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228007. [PMID: 36432109 PMCID: PMC9699228 DOI: 10.3390/molecules27228007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 11/19/2022]
Abstract
There is an increase in the popularity of craft beer, which is produced by small, independent, and traditional breweries. Since craft beer popularity is rising in Portugal this research focused on assessing physicochemical parameters, total phenolic content (TPC) and the antioxidant capacity of Portuguese craft beers and raw materials used in beer production. In this experimental study, 19 beer samples were analyzed. Parameters such as pH, Total Acidity, Reducing Sugar Content and TPC were evaluated. For the determination of antioxidant activity, DPPH scavenging activity and metal chelating activity (MCA) were analyzed in all samples. Craft beers demonstrated a high phenolic content (ranging from 343.78 mg GAE/L to 2172.49 mg GAE/L), significantly different from industrial beers. Craft beers demonstrated a higher inhibition of DPPH radicals and higher MCA than the raw materials. DPPH inhibition ranged from 36.5% to 96.0% for malt and 64.7% to 79.6% in hops samples. MCA also varied between the different samples, with results of 12.0% to 24.8% in malt samples and 3.8% to 23.5% in hops. Raw materials can potentially influence the antioxidant activity of the resulting beer. Positive correlations between TPC and physicochemical properties can be useful to help consumers choose beers with added value for health.
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Affiliation(s)
- Sara Silva
- Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
| | - Ana Isabel Oliveira
- Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
- Centro de Investigação em Saúde e Ambiente (CISA), Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
| | - Agostinho Cruz
- Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
- Centro de Investigação em Saúde e Ambiente (CISA), Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
| | - Rita Ferraz Oliveira
- Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
- Centro de Investigação em Saúde e Ambiente (CISA), Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
| | - Rubim Almeida
- CIBIO, Research Center in Biodiversity and Genetic Resources, InBIO-Associate Laboratory, University of Porto, 4485-661 Vairão, Portugal
- Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal
- PO Herbarium, MHNC-UP—Museum of Natural History and Science of the University of Porto, 4099-002 Porto, Portugal
| | - Cláudia Pinho
- Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
- Centro de Investigação em Saúde e Ambiente (CISA), Escola Superior de Saúde (ESS), Instituto Politécnico do Porto (IPP), 4200-072 Porto, Portugal
- Correspondence:
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Van Mieghem T, Delvaux F, Dekleermaeker S, Britton SJ. Top of the Ferrous Wheel – The Influence of Iron Ions on Flavor Deterioration in Beer. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2022. [DOI: 10.1080/03610470.2022.2124363] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
| | | | | | - Scott J. Britton
- Brewery Duvel Moortgat, Research & Development, Puurs-Sint-Amands, Belgium
- International Centre for Brewing and Distilling, Institute of Biological Chemistry, Biophysics and Bioengineering, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, UK
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Adetokunboh AH, Obilana AO, Jideani VA. Physicochemical Characteristics of Bambara Groundnut Speciality Malts and Extract. Molecules 2022; 27:molecules27144332. [PMID: 35889203 PMCID: PMC9323462 DOI: 10.3390/molecules27144332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 02/04/2023] Open
Abstract
Speciality malts and their extracts have physicochemical characteristics such as colour, flavour, and aroma sorted for in food production. Speciality malts used in food production are mostly produced from cereal grains. Hence, this study aimed to produce speciality malts from Bambara groundnut (BGN) seeds and analyse their physicochemical characteristics and metabolites. The base, toasted, caramel, and roasted malt were produced by drying at different temperatures and times. Syrups were produced isothermally from the speciality malts. The speciality malts and syrups were assessed for colour, pH, protein, α and β-amylases, total polyphenols, antioxidants, and metabolite profiling. The BGN speciality malts were assayed for fatty acid methyl esters (FAME), hydrocarbons, sugar alcohols, sugars, acids, amino acids, and volatile components using capillary gas chromatography-mass spectrometry (GC-MS) and gas chromatography with flame ionisation detection (GC-FID). The colours of the speciality malts and syrups were significantly (p = 0.000) different. The protein content of the BGN speciality malts was significantly different (p = 0.000), while the protein content of the syrups was not significantly different. The amylase activities of the BGN speciality malt decreased with the change in kilning temperatures and time. The α- and β-amylase activities for the specialty malts were 1.01, 0.21, 0.29, 0.15 CU/g and 0.11, 0.10, 0.10, 0.06 BU/g. The total polyphenols and antioxidant activities differed for all BGN speciality malts. There were twenty-nine volatiles detected in the BGN speciality malts. Fifteen amino acids consisted of seven essential amino acids, and eight non-essential amino acids were detected in the speciality malts. Fatty acid methyl esters (FAME) identified were palmitoleic, oleic, linolelaidic, linoleic, and arachidic acid. The sugars, organic acids, and sugar alcohols consisted of lactic acid, fructose, sucrose, and myo-inositol. The BGN speciality malts exhibited good physicochemical characteristics and metabolites that can make them useful as household and industrial ingredients for food production, which could be beneficial to consumers.
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Su X, Yu M, Wu S, Ma M, Su H, Guo F, Bian Q, Du T. Sensory lexicon and aroma volatiles analysis of brewing malt. NPJ Sci Food 2022; 6:20. [PMID: 35411041 PMCID: PMC9001694 DOI: 10.1038/s41538-022-00135-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 03/04/2022] [Indexed: 11/24/2022] Open
Abstract
Malt is an important raw material in brewing beer. With the increasing development of craft beer, brewing malt has contributed diverse colours and abundant flavours to beer. While “malty” and “worty” were commonly used to describe the malt flavour of beer, they are still inadequate. This study focused on developing of a sensory lexicon and a sensory wheel for brewing malt. Here, a total of 22 samples were used for sensory evaluation. The panels identified 53 attributes to form the lexicon of brewing malt, including appearance, flavour, taste, and mouthfeel. After consulting with the experts from the brewing industry, 46 attributes were selected from the lexicon list to construct the sensory wheel. Based on the lexicon, rate-all-that-apply analysis was used to discriminate between six samples of different malt types. The principal component analysis results showed that malt types were significantly correlated with sensory features. To further understand the chemical origin of sensory attributes, partial least squares regression analysis was used to determine the association between the aroma compounds and sensory attributes. According to the colour range and malt types, 18 samples were used for sensory descriptive analysis and volatile compounds identification. Seven main flavours were selected from the brewing malt sensory wheel. 34 aroma compounds were identified by headspace solid phase microextraction gas chromatography-mass spectrometry-olfactometry. According to the partial least squares regression results, the aroma compounds were highly correlated with the sensory attributes of the brewing malt. This approach may have practical applications in the sensory studies of other products.
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7
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Carvalho DO, Guido LF. A review on the fate of phenolic compounds during malting and brewing: Technological strategies and beer styles. Food Chem 2022; 372:131093. [PMID: 34619521 DOI: 10.1016/j.foodchem.2021.131093] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 09/02/2021] [Accepted: 09/06/2021] [Indexed: 02/03/2023]
Abstract
This review provides an overview on the influence of malting and brewing on the overall phenolic content of barley malt and beer. Beer phenolics are mainly originated from barley malt and can be found in free and bound forms, in concentrations up to 50% lower comparing to sweet wort. The use of roasted malts, in combination with proper milling and high mashing temperatures at low pH can lead to a release of bound phenolic forms and increased extraction. New technological strategies such as special yeasts, manipulation of enzymatic activity and dry-hopping may be relevant to improve the phenolic profile of beer and attain phenolic levels with benefits both for beer stability and consumer's health. As the content of free ferulic acid in beer only accounts up to approximately 15% of total content, further studies should put emphasis on its bound forms in different beer styles and non-alcoholic beers.
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Affiliation(s)
- Daniel O Carvalho
- REQUIMTE/LAQV - Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - Luís F Guido
- REQUIMTE/LAQV - Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal.
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8
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Jukić M, Nakov G, Komlenić DK, Vasileva N, Šumanovac F, Lukinac J. Quality Assessment of Cookies Made from Composite Flours Containing Malted Barley Flour and Wheat Flour. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11060761. [PMID: 35336642 PMCID: PMC8948820 DOI: 10.3390/plants11060761] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 03/11/2022] [Accepted: 03/11/2022] [Indexed: 05/27/2023]
Abstract
Wheat-based short-dough cookies are considered low nutritional value foods because their recipes are high in fat and sugar. The aim of this study was to investigate the effects of replacing part of the wheat flour (WF) with different types of malted barley flour (MBF), while reducing sucrose in the recipe, in order to produce cookies with increased nutritional value, enhanced functional properties, and acceptable technological and sensory characteristics. Three types of brewer's MBF (Pilsen, Amber, and Black) were used to replace WF in amounts of 20, 40, and 60%, while simultaneously reducing the addition of sucrose. Sucrose was added at levels of 66.6, 33.3, and 0% of the original standard recipe. MBF mitigated the effects of the reduced sucrose addition, likely due to its own high sugar content derived from barley malt. Snapping force determined with a texture analyzer decreased proportionally to sucrose reduction and MBF addition, indicating a softer texture of the cookies. MBF significantly increased the total phenolic content (TPC) and antioxidant activity (AOA) of the cookies. The results of the sensory analysis showed that cookies with Pilsen MBF and Amber MBF had a pleasantly sweet and rich flavor, while the addition of Black MBF produced an exaggerated bitter flavor and a nutty roasted aroma. The results suggest that different types of brewer's MBF can be successfully used to produce functional cookies with reduced sucrose addition.
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Affiliation(s)
- Marko Jukić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (D.K.K.); (F.Š.); (J.L.)
| | - Gjore Nakov
- Institute of Cryobiology and Food Technologies, Agricultural Academy—Sofia, 53 Cherni Vrah Blvd., 1407 Sofia, Bulgaria;
| | - Daliborka Koceva Komlenić
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (D.K.K.); (F.Š.); (J.L.)
| | - Nastia Vasileva
- College of Sliven, Technical University of Sofia, 59 Bourgasko Shaussee Blvd., 8800 Sliven, Bulgaria;
| | - Franjo Šumanovac
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (D.K.K.); (F.Š.); (J.L.)
| | - Jasmina Lukinac
- Faculty of Food Technology Osijek, Josip Juraj Strossmayer University of Osijek, 31000 Osijek, Croatia; (D.K.K.); (F.Š.); (J.L.)
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Adetokunboh AH, Obilana AO, Jideani VA. Enzyme and Antioxidant Activities of Malted Bambara Groundnut as Affected by Steeping and Sprouting Times. Foods 2022; 11:783. [PMID: 35327205 PMCID: PMC8947651 DOI: 10.3390/foods11060783] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 02/26/2022] [Accepted: 02/28/2022] [Indexed: 02/04/2023] Open
Abstract
Bambara groundnut (BGN) is termed a complete food due to its nutritional composition and has been researched often for its nutritional constituents. Malting BGN seeds have shown improved nutritional and functional characteristics, which can be used to produce an amylase-rich product as a functional ingredient for food and beverage production in homes and industries. The aim of this study was to investigate the enzyme and antioxidant activities of malted BGN affected by steeping and sprouting times. BGN was malted by steeping in distilled water at 25-30 °C for 36 and 48 h and then sprouted for 144 h at 30 °C. Samples were drawn every 24 h for drying to study the effect of steeping and sprouting times on the moisture, sprout length, pH, colour, protein content, amylase, total polyphenols, and antioxidant activities of the BGN seeds. The steeping and sprouting times significantly affected the BGN malt colour quality and pH. The protein content of the malted BGN seeds was not significantly different based on steeping and sprouting times. Steeping and sprouting times significantly affected the α- and β-amylase activities of the BGN seeds. The activity of amylases for 36 and 48 h steeping times were 0.16 and 0.15 CU/g for α-amylase and were 0.22 and 0.23 BU/g for β-amylase, respectively. Amylase-rich BGN malt was produced by steeping for 36 h and sprouting for 96 h. Amylase-rich BGN malt can be useful as a functional food ingredient in food and beverage formulations.
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Affiliation(s)
| | | | - Victoria A. Jideani
- Department of Food Science and Technology, Cape Peninsula University of Technology, Bellville 7535, South Africa; (A.H.A.); (A.O.O.)
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10
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Effect of malting on nutritional and antioxidant properties of the seeds of two industrial hemp (Cannabis sativa L.) cultivars. Food Chem 2022; 370:131348. [PMID: 34788961 DOI: 10.1016/j.foodchem.2021.131348] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 10/01/2021] [Accepted: 10/04/2021] [Indexed: 01/08/2023]
Abstract
The impact of malting on antioxidant, nutritional, and antinutritional features of two industrial hemp cultivars was investigated. The seeds were steeped (5 h; RT), germinated (3-days; 24 °C), and kilned at different temperatures (6 h; 50 °C or 70 °C). The following determinations were performed on malted and unmalted samples: total phenolic content, polyphenol profile, total antioxidant capacity, tocopherol composition, proximate analysis, fatty acids profile, trypsin inhibitors and phytate content. The results showed that malting increased the protein content up to 9%, without affecting the fat amount, and the fatty acids profile. Total phenolic content, tocopherol profile and total antioxidant capacity were also improved. 70 °C kilning temperature resulted effective to reduce the trypsin inhibitors (up to -27%), increase the reducing power and the level of N-trans-caffeoyltyramine and cannabisin A. Based on this, malting using 3 germination days and 70 °C as kilning temperature could be considered suitable transformation process for improving hempseeds quality.
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Sharma JK, Sihmar M, Santal AR, Prager L, Carbonero F, Singh NP. Barley Melanoidins: Key Dietary Compounds With Potential Health Benefits. Front Nutr 2021; 8:708194. [PMID: 34651008 PMCID: PMC8505744 DOI: 10.3389/fnut.2021.708194] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 08/30/2021] [Indexed: 01/01/2023] Open
Abstract
This paper is a review of the potential health benefits of barley melanoidins. Food melanoidins are still rather understudied, despite their potential antioxidant, antimicrobial, and prebiotic properties. Free radicals are villainous substances in humans produced as metabolic byproducts and causing cancers and cardiovascular diseases, and the melanoidins alleviate the effects of these free radicals. Malt is produced from cereal grains such as barley, wheat, and maize, and barley is predominantly used in beer production. Beer (alcoholic and non-alcoholic) is a widely consumed beverage worldwide and a good source of dietary melanoidins, which enhance the beers' flavor, texture, and sensorial properties. Melanoidins, the final products of the Maillard reaction, are produced at different stages during the brewing process. Beer melanoidins protect the cells from oxidative damage of DNA. The high reducing capacity of melanoidins can induce hydroxyl radicals from H2O2 in the presence of ferric ion (Fe3+). Melanoidins inhibit lipid peroxidation during digestion due to their chelating metal property. However, lower digestibility of melanoidins leads to less availability to the organisms but is considered to function as dietary fiber that can be metabolized by the lower gut microbiota and possibly incur prebiotic properties. Melanoidins promote the growth of Lactobacilli and Bifidobacteria in the gastrointestinal tract, preventing the colonization of potential pathogens. Barley is already popular through beer production and increasingly as a functional food. Considering this economic and industrial importance, more research to explore the chemical properties of barley melanoidins and corresponding health benefits as barley is warranted.
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Affiliation(s)
| | - Monika Sihmar
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, India
| | - Anita Rani Santal
- Department of Microbiology, Maharshi Dayanand University, Rohtak, India
| | - Louis Prager
- Department of Crop and Soil Science, College of Agricultural, Human, and Natural Resource Sciences, Washington State University, Pullman, WA, United States
| | - Franck Carbonero
- Department of Nutrition and Exercise Physiology, Elson Floyd College of Medicine, Washington State University, Spokane, WA, United States
| | - Nater Pal Singh
- Centre for Biotechnology, Maharshi Dayanand University, Rohtak, India
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How do coffee substitutes compare to coffee? A comprehensive review of its quality characteristics, sensory characters, phytochemicals, health benefits and safety. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101290] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Abstract
Specialty malts are commonly used in brewing to provide flavor, aroma, and color to wort and beer. The use of specialty malts contributes to the variety of beer products; therefore, it is important to understand their effect on the characteristics of wort and beer. This study investigates the impact of various specialty malts on wort and beer properties. A control beer was prepared with 100% base malt, and four beer treatments were prepared with the addition of kilned, roasted, and caramel specialty malts. For each treatment, 20% of the base malt was substituted with the various specialty malts when preparing the wort. The fermentable sugars and free amino nitrogen (FAN) content for each wort were analyzed. Alcohol by volume (ABV), international bitterness units (IBU), diacetyl, and polyphenol content of each prepared beers were subsequently analyzed. Results showed that wort prepared with the addition of roasted and caramel malts contained a lower concentration of fermentable sugars and FAN than wort prepared with the base and kilned malts. Beers prepared with the addition of roasted and caramel malts exhibited the lowest levels of ABV, as well as the lowest levels of diacetyl. These beers also exhibited higher levels of total phenolic compounds compared to the other beer samples. No change was observed in IBU levels as a result of brewing with the different specialty malts. This study illustrates how the use of specialty malts impacts wort and beer properties, providing useful information to aid in the production of quality beer products.
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14
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Petrucci R, Di Matteo P, Sobolev AP, Liguori L, Albanese D, Proietti N, Bortolami M, Russo P. Impact of Dealcoholization by Osmotic Distillation on Metabolic Profile, Phenolic Content, and Antioxidant Capacity of Low Alcoholic Craft Beers with Different Malt Compositions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:4816-4826. [PMID: 33855852 PMCID: PMC8154560 DOI: 10.1021/acs.jafc.1c00679] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Beer antioxidants originate mainly from malts, classified as colored, caramel, and roasted, according to the malting process. This study aimed to characterize, in terms of phenolic antioxidants, three types of Pale Ale craft beers brewed using increasing percentage of dark malt (0, 5, and 15% Caraamber malt, called PA100, PA95, PA85, respectively) and to evaluate the impact of dealcoholization by osmotic distillation (OD) on the same antioxidants. All the alcoholic (PA, 6.2-6.8 vol %) and low alcoholic (LA-PA, 1 vol %) beers were analyzed by HPLC-ESI-MS/MS, total phenolic content (TPC), and antioxidant activity (AA): similar phenolic profiles were evidenced and 43 compounds identified or tentatively identified. Some differences were found among PA100, PA95, and PA85: PA85 was richer in free phenolic compounds (10.55 mg/L) and had a higher TPC (463.7 GAE mg/L) and AA (852.1 TE mg/L). LA-PA beers showed the same phenolic profile and similar TPC and AA compared to PA beers; however, there were some differences regarding LA-PA85 (5.91 mg/L). Dealcoholization by OD seemed to weakly affect the phenolic fraction. ESI-MS/MS infusion experiments evidenced oligosaccharides, small organic acids, and amino acids, whose presence was confirmed and quantitated by NMR: besides ethanol and other alcohols, weak to strong loss of low-molecular-weight metabolites was evidenced in LA-PA beers.
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Affiliation(s)
- Rita Petrucci
- Department
of Basic and Applied Sciences for Engineering, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy
| | - Paola Di Matteo
- Department
of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
| | - Anatoly P. Sobolev
- “Segre-Capitani”
Magnetic Resonance Laboratory, Institute for Biological Systems, National Research Council (CNR), via Salaria km 29.300, Monterotondo, 00015 Rome, Italy
| | - Loredana Liguori
- Department
of Industrial Engineering, University of
Salerno, Via Giovanni
Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Donatella Albanese
- Department
of Industrial Engineering, University of
Salerno, Via Giovanni
Paolo II 132, 84084 Fisciano, Salerno, Italy
| | - Noemi Proietti
- “Segre-Capitani”
Magnetic Resonance Laboratory, Institute for Biological Systems, National Research Council (CNR), via Salaria km 29.300, Monterotondo, 00015 Rome, Italy
| | - Martina Bortolami
- Department
of Basic and Applied Sciences for Engineering, Sapienza University of Rome, Via del Castro Laurenziano 7, 00161 Rome, Italy
| | - Paola Russo
- Department
of Chemical Engineering Materials Environment, Sapienza University of Rome, Via Eudossiana 18, 00184 Rome, Italy
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15
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Filipowska W, Jaskula‐Goiris B, Ditrych M, Bustillo Trueba P, De Rouck G, Aerts G, Powell C, Cook D, De Cooman L. On the contribution of malt quality and the malting process to the formation of beer staling aldehydes: a review. JOURNAL OF THE INSTITUTE OF BREWING 2021. [DOI: 10.1002/jib.644] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Weronika Filipowska
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
- International Centre for Brewing Science, School of Biosciences University of Nottingham, Sutton Bonington Campus Sutton Bonington Leicestershire LE12 5RD UK
| | - Barbara Jaskula‐Goiris
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
| | - Maciej Ditrych
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
| | - Paula Bustillo Trueba
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
| | - Gert De Rouck
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
| | - Guido Aerts
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
| | - Chris Powell
- International Centre for Brewing Science, School of Biosciences University of Nottingham, Sutton Bonington Campus Sutton Bonington Leicestershire LE12 5RD UK
| | - David Cook
- International Centre for Brewing Science, School of Biosciences University of Nottingham, Sutton Bonington Campus Sutton Bonington Leicestershire LE12 5RD UK
| | - Luc De Cooman
- KU Leuven, Faculty of Engineering Technology, Department of Microbial and Molecular Systems (M2S), Laboratory of Enzyme, Fermentation and Brewing Technology Technology Campus Ghent Gebroeders De Smetstraat 1 Ghent 9000 Belgium
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16
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Bettenhausen HM, Barr L, Omerigic H, Yao L, Heuberger AL. Mass Spectrometry Metabolomics of Hot Steep Malt Extracts and Association to Sensory Traits. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2021. [DOI: 10.1080/03610470.2020.1869499] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Harmonie M. Bettenhausen
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, U.S.A.
| | | | - Heather Omerigic
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, U.S.A.
| | - Linxing Yao
- Analytical Resources Core-Bioanalysis and Omics Center, Colorado State University, Fort Collins, CO, U.S.A.
| | - Adam L. Heuberger
- Department of Horticulture and Landscape Architecture, Colorado State University, Fort Collins, CO, U.S.A.
- Department of Soil and Crop Sciences, Colorado State University, Fort Collins, CO, U.S.A
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17
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Reichel S, Carvalho DO, Santos JR, Bednar P, Rodrigues JA, Guido LF. Profiling the volatile carbonyl compounds of barley and malt samples using a low-pressure assisted extraction system. Food Control 2021. [DOI: 10.1016/j.foodcont.2020.107568] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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18
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Analysis of Physicochemical Parameters of Congress Worts Prepared from Special Legume Seed Malts, Acquired with and without Use of Enzyme Preparations. Foods 2021; 10:foods10020304. [PMID: 33540842 PMCID: PMC7912961 DOI: 10.3390/foods10020304] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/28/2021] [Accepted: 01/29/2021] [Indexed: 11/25/2022] Open
Abstract
This study was conducted to produce malt from legume seeds (chickpea, lentil, pea, and vetch) and test whether malting with parameters, typically barley grain, will result in well-modified legume seed malt. Analysis of malt was performed by producing congress worts from legume seed malts. Concentration of phenolic compounds, as well as antioxidant activity of legume seed malts was analysed. Acquired worts were characterised with poor technological characteristics (wort extract, wort volume, saccharification time, brewhouse efficiency); however, the malting process increased concentration of phenolic compounds and antioxidant activity of the plant material. Subsequent mashing tests with addition of different external enzymes and/or gelatinisation of legume seed malt were performed. Use of external enzymes improved saccharification time, extract content, wort volume, as well brewhouse efficiency in the case of some legume seed malts. The best brewhouse efficiencies and highest extract values were acquired by the samples prepared with 30% of gelatinised vetch malt or chickpea malt mixed with 70% of Pilsner malt. The study shows that there is possibility of creating legume seed malts, but malting and mashing characteristics need to be customised for these special malts.
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19
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Brewing By-Product Upcycling Potential: Nutritionally Valuable Compounds and Antioxidant Activity Evaluation. Antioxidants (Basel) 2021; 10:antiox10020165. [PMID: 33499399 PMCID: PMC7911235 DOI: 10.3390/antiox10020165] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Revised: 01/15/2021] [Accepted: 01/18/2021] [Indexed: 11/16/2022] Open
Abstract
The brewing industry produces high quantities of solid and liquid waste, causing disposal issues. Brewing spent grains (BSGs) and brewing spent hop (BSH) are important by-products of the brewing industry and possess a high-value chemical composition. In this study, BSG and BSH, obtained from the production process of two different types of ale beer (Imperial red and Belgian strong beer) were characterized in terms of valuable components, including proteins, carbohydrates, fat, dietary fiber, β-glucans, arabinoxylans, polyphenols, and phenolic acids, and antioxidant activity (Ferric Reducing Antioxidant Power Assay (FRAP), 2,2-Diphenyl-1-picrylhydrazyl (DPPH) and 2,2'-Azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS)). Significant concentrations of total polyphenols were observed in both BSH and BSG samples (average of about 10 mg GAE/g of dry mass); however, about 1.5-fold higher levels were detected in by-products of Belgian strong ale beer compared with Imperial red. Free and bound phenolic acids were quantified using a validated chromatographic method. A much higher level of total phenolic acids (TPA) (about 16-fold higher) was found in BSG samples compared with BSHs. Finally, their antioxidant potential was verified. By-products of Belgian strong ale beer, both BSG and BSH, showed significantly higher antioxidative capacity (about 1.5-fold lower inhibitory concentration (IC50) values) compared with spent grains and hop from the brewing of Imperial red ale. In summary, BSG and BSH may be considered rich sources of protein, carbohydrates, fiber, and antioxidant compounds (polyphenols), and have the potential to be upcycled by transformation into value-added products.
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20
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Antiproliferative Activity on Human Colon Adenocarcinoma Cells and In Vitro Antioxidant Effect of Anthocyanin-Rich Extracts from Peels of Species of the Myrtaceae Family. Molecules 2021; 26:molecules26030564. [PMID: 33498977 PMCID: PMC7865521 DOI: 10.3390/molecules26030564] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/08/2021] [Accepted: 01/10/2021] [Indexed: 12/12/2022] Open
Abstract
There is a significant indication of the beneficial health effects of fruit rich diets. Fruits of native plant species have noticeably different phytochemicals and bioactive effects. The aim of this work was to characterize and compare the constituents of jabuticaba (Myrciaria jaboticaba, MJ), jamun-berry (Syzygium cumini, SC), and malay-apple (Syzygium malaccense, SM) extracts and their influence on antioxidant activity in vitro and antiproliferative effects on human colon adenocarcinoma cells. According to the results, dried peel powders (DP) have a high anthocyanin content, phenolic compounds, and antioxidant activity when compared to freeze dried extracts (FD). M. jaboticaba dried peel powder extract had a higher total anthocyanin and phenolic compounds content (802.90 ± 1.93 and 2152.92 ± 43.95 mg/100 g, respectively). A reduction in cell viability of HT-29 cells after treatment with M. jaboticaba extracts (DP-MJ and FD-MJ) was observed via MTT assay. Flow cytometry showed that the treatment with the anthocyanin-rich extracts from MJ, SC, and SM had an inhibitory impact on cell development due to G2/M arrest and caused a rise in apoptotic cells in relation to the control group. The findings of this study highlight the potential of peel powders from Myrtaceae fruits as an important source of natural antioxidants and a protective effect against colon adenocarcinoma.
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21
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Mahalingam R, Graham D, Walling JG. The Barley ( Hordeum vulgare ssp. vulgare) Respiratory Burst Oxidase Homolog (HvRBOH) Gene Family and Their Plausible Role on Malting Quality. FRONTIERS IN PLANT SCIENCE 2021; 12:608541. [PMID: 33679826 PMCID: PMC7934426 DOI: 10.3389/fpls.2021.608541] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/27/2021] [Indexed: 05/12/2023]
Abstract
Controlled generation of reactive oxygen species (ROS) is pivotal for normal plant development and adaptation to changes in the external milieu. One of the major enzymatic sources of ROS in plants are the plasma-membrane localized NADPH oxidases, also called as Respiratory Burst Oxidase Homologs (RBOH). In addition to the six previously reported, seven new members of RBOH gene family were identified in barley using in silico analysis. Conservation of genomic structure and key residues important for catalytic activity and co-factor binding was observed in barley RBOH genes. Phylogenetic analysis of plant RBOHs revealed distinct clades for monocot and dicot RBOH proteins. Hence, we propose to use the rice nomenclature for naming barley RBOH genes. Temporal changes in ROS profiles were observed during barley malting and was accompanied by changes in protein carbonylation, lipid peroxidation, and antioxidant capacity. Among the nine differentially expressed HvRBOHs during various malting stages, HvRBOHA and HvRBOHC showed most significant sustained changes in expression. RNAi knockdown lines with reduced expression of HvRBOHA/C gene exhibited genetic compensation via inducible expression of other gene family members during malting. However, the physiological consequence of reduced expression of HvRBOHA/C manifested as a poor malting quality profile attributable to low alpha-amylase activity and high levels of beta-glucan. We propose that the HvRBOHs play a critical role in modulating the redox milieu during the early stages of malting, which in turn can significantly impact carbohydrate metabolism.
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22
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da Costa Maia I, Thomaz dos Santos D'Almeida C, Guimarães Freire DM, d'Avila Costa Cavalcanti E, Cameron LC, Furtado Dias J, Simões Larraz Ferreira M. Effect of solid-state fermentation over the release of phenolic compounds from brewer's spent grain revealed by UPLC-MSE. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.110136] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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23
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Gąsior J, Kawa-Rygielska J, Kucharska AZ. Carbohydrates Profile, Polyphenols Content and Antioxidative Properties of Beer Worts Produced with Different Dark Malts Varieties or Roasted Barley Grains. Molecules 2020; 25:E3882. [PMID: 32858842 PMCID: PMC7503650 DOI: 10.3390/molecules25173882] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/21/2020] [Accepted: 08/24/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to assess the possibility of shaping properties of beers at the stage of brewing wort production with the use of various types of special malts (chocolate pale, chocolate dark, wheat chocolate, brown barley) and roasted barley grains. The carbohydrate profile, polyphenols content, antioxidant capacity, 5-hydroxymethylfurfural content, and the browning index level were analyzed. Statistical analysis showed significant differences in the values of the examined features between the samples. The sugars whose content was most affected by the addition of special malts were maltose and dextrins. The polyphenol content in worts with 10% of additive was 176.02-397.03 mg GAE/L, ferric reducing antioxidant power (FRAP) 1.32-2.07 mmol TE/L, and capacity to reduction radical generated from 2,2'-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS•+) 1.46-2.70 mmol TE/L. Wort with 40% dark malt showed the highest content of polyphenolic compounds and antioxidant activity (FRAP and ABTS•+). The HMF content and the browning index value were higher for wort with the addition of darker-colored malts (EBC) and increased with increasing dark malt dose.
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Affiliation(s)
- Justyna Gąsior
- Department of Fermentation and Cereals Technology, Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland;
| | - Joanna Kawa-Rygielska
- Department of Fermentation and Cereals Technology, Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland;
| | - Alicja Z. Kucharska
- Department of Fruit, Vegetable and Plant Nutraceutical Technology, Faculty of Biotechnology and Food Science, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37, 51-630 Wrocław, Poland;
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24
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Influence of malt composition on the quality of a top fermented beer. Journal of Food Science and Technology 2020; 58:2295-2303. [PMID: 33967326 DOI: 10.1007/s13197-020-04740-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/10/2020] [Accepted: 08/14/2020] [Indexed: 12/19/2022]
Abstract
The beer is a widely consumed drink, appreciated for its sensory characteristics, and it also contains beneficial compounds for health derived from its raw materials. In this work, the influence of coloured malt on the main quality parameters of a top-fermenting beer was evaluated. The beers were produced increasing the percentage of coloured malt (0, 5, 15% Caraamber®) respect to the pale ale base malt. The beers had an alcohol content ranging from 6.2 to 6.8 vol%; the results highlighted a deeper colour, increased bitterness and turbidity in beer with the highest amount of Caraamber malt. This latter showed the highest polyphenols (453.8 mg GAE/L) and antioxidant activity (840.1 µmol TE/L) and, on the other hand, the lowest foam stability. The volatiles profile showed a higher amount of aldehydes and ketones in beer with the highest percentage of caramel malt but the lowest in higher alcohols and esters. No differences were found in the fruity-esters, alcoholic and caramel sensory notes; while the beer made with 15% of coloured malt was perceived sweeter and with less fruity citrus notes than other beer samples.
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25
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Chaijan M, Panpipat W. Nutritional composition and bioactivity of germinated Thai indigenous rice extracts: A feasibility study. PLoS One 2020; 15:e0237844. [PMID: 32834013 PMCID: PMC7446816 DOI: 10.1371/journal.pone.0237844] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Accepted: 08/04/2020] [Indexed: 11/23/2022] Open
Abstract
The feasibility of the production of germinated rice extracts using indigenous rice from Southern Thailand, including Khemtong (KHT) and Khai Mod Rin (KMR) from a single location at the Pak Phanang River Basin in Nakhon Si Thammarat, was investigated. The nutritional composition and bioactivity of the germinated rice extracts from both cultivars were evaluated. Optimum germination time for both rices was 96 h, leading to the highest GABA, thiamine, free amino acid, total sugar, and α-amylase activity (p<0.05). Germinated KHT had a higher α-amylase activity than germinated KMR at all germination times. Mashing at 60°C/pH 5.5 rendered the extract with the highest GABA content (p<0.05) and desirable contents of other nutrients. In comparison with germinated Sungyod (local colored rice) and Jasmine (commercial Thai rice) extracts, KHT and KMR showed a higher scavenging activity against DPPH•, OH•, and H2O2 (p<0.05) with a comparable ABTS•+ inhibition. For metal chelation, reducing power and ACE inhibitory activity, the germinated Sungyod extract was greater than KHT/KMR. The results demonstrated the potential use of germinated local Thai rice for the production of functional beverages.
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Affiliation(s)
- Manat Chaijan
- Food Technology and Innovation Research Center of Excellence, Department of Agro-Industry, School of Agricultural Technology, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
| | - Worawan Panpipat
- Food Technology and Innovation Research Center of Excellence, Department of Agro-Industry, School of Agricultural Technology, Walailak University, Thasala, Nakhon Si Thammarat, Thailand
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26
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Ignat MV, Salanță LC, Pop OL, Pop CR, Tofană M, Mudura E, Coldea TE, Borșa A, Pasqualone A. Current Functionality and Potential Improvements of Non-Alcoholic Fermented Cereal Beverages. Foods 2020; 9:E1031. [PMID: 32752167 PMCID: PMC7466267 DOI: 10.3390/foods9081031] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/12/2022] Open
Abstract
Fermentation continues to be the most common biotechnological tool to be used in cereal-based beverages, as it is relatively simple and economical. Fermented beverages hold a long tradition and have become known for their sensory and health-promoting attributes. Considering the attractive sensory traits and due to increased consumer awareness of the importance of healthy nutrition, the market for functional, natural, and non-alcoholic beverages is steadily increasing all over the world. This paper outlines the current achievements and technological development employed to enhance the qualitative and nutritional status of non-alcoholic fermented cereal beverages (NFCBs). Following an in-depth review of various scientific publications, current production methods are discussed as having the potential to enhance the functional properties of NFCBs and their safety, as a promising approach to help consumers in their efforts to improve their nutrition and health status. Moreover, key aspects concerning production techniques, fermentation methods, and the nutritional value of NFCBs are highlighted, together with their potential health benefits and current consumption trends. Further research efforts are required in the segment of traditional fermented cereal beverages to identify new potentially probiotic microorganisms and starter cultures, novel ingredients as fermentation substrates, and to finally elucidate the contributions of microorganisms and enzymes in the fermentation process.
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Affiliation(s)
- Maria Valentina Ignat
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.V.I.); (E.M.); (T.E.C.); (A.B.)
| | - Liana Claudia Salanță
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (O.L.P.); (C.R.P.); (M.T.)
| | - Oana Lelia Pop
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (O.L.P.); (C.R.P.); (M.T.)
| | - Carmen Rodica Pop
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (O.L.P.); (C.R.P.); (M.T.)
| | - Maria Tofană
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (O.L.P.); (C.R.P.); (M.T.)
| | - Elena Mudura
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.V.I.); (E.M.); (T.E.C.); (A.B.)
| | - Teodora Emilia Coldea
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.V.I.); (E.M.); (T.E.C.); (A.B.)
| | - Andrei Borșa
- Department of Food Engineering, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.V.I.); (E.M.); (T.E.C.); (A.B.)
| | - Antonella Pasqualone
- Department of Soil, Plant and Food Sciences, University of Bari ‘Aldo Moro’, Via Amendola, 165/A, 70126 Bari, Italy;
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27
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Phytochemical Composition of Brewers’ Spent Grains. ACTA UNIVERSITATIS CIBINIENSIS. SERIES E: FOOD TECHNOLOGY 2020. [DOI: 10.2478/aucft-2020-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Brewers’ spent grains (BSG) are the main waste product of the brewing industry, accounting for about 85% of the total waste materials. Their composition is different (due to various brewing technologies) but includes high levels of dietary fiber, proteins, essential amino acids, polyphenols, antioxidants, vitamins and fats. The aim of the present study was to investigate the phenolic content and antioxidant activity (the radical scavenging assay (DPPH) and ferric reducing antioxidant power (FRAP)) of 19 different malt types and their BSG. The highest phenolic content was demonstrated by the BSG of Caraaroma malt, whereas the BSG of Carafa Special type 1 had the highest DPPH radical scavenging activity and ferric reducing antioxidant power. Based on the results obtained, malts with the highest biological value were selected for inclusion in the composition of functional foods.
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28
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Influence of malt modification and the corresponding macromolecular profile on palate fullness in cereal-based beverages. Eur Food Res Technol 2020. [DOI: 10.1007/s00217-020-03482-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
AbstractThe sensory attribute palate fullness of cereal-based beverages was shown to be affected by polymeric compounds and their macromolecular profile. During malting, the enzymatic degradation of polymers is technologically controlled by the malting parameters, namely the degree of steeping, germination time, and germination temperature. The macromolecular profile of a fermented cereal-based beverage consists of non-fermentable substance classes. Therefore, the macromolecular composition of a final beverage is originally dominated by the raw material, if conventional production methods are used. We investigated the influence of different cytolytic and proteolytic malt modifications on the macromolecular profile of lactic acid-fermented cereal-based beverages (a strain was selected that did not produce exopolysaccharides) and their resultant effect on the sensory perception of the attributes of palate fullness and mouthfeel. Asymmetrical-flow field-flow fractionation coupled with multi-angle light-scattering detection and refractive index detection is an analytical tool for macromolecular characterization to indicate differences in the macromolecular profile, molar mass, and molar mass distribution. The beverages produced using different modified malts demonstrated a considerable variation in their final composition, particularly in the composition of their macromolecular compounds. A higher level of malt modification led to a decrease in the high-molar-mass fraction and a consequent shift toward fractions with a lower molar mass. Malts produced from barley with increased crude protein contents resulted in a greater range within the macromolecular profile. The variation of germination time significantly influenced the number average molar mass, the total refractive index detection (dRI) peak area, and the high-molar-mass fraction, which contained cell wall polysaccharides (60–1200 kDa). The perception of the intensity of palate fullness was significantly correlated with specific macromolecular fractions, which were influenced by the malting parameter degree of steeping and the resultant modification. The perception of the mouthfeel descriptor watery varied significantly for different crude protein contents. Our results are beneficial for a targeted design of beverage composition based on the macromolecular profile by an improved selection of raw materials and malting technology.
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29
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Rico D, Peñas E, García MDC, Martínez-Villaluenga C, Rai DK, Birsan RI, Frias J, Martín-Diana AB. Sprouted Barley Flour as a Nutritious and Functional Ingredient. Foods 2020; 9:E296. [PMID: 32150936 PMCID: PMC7142429 DOI: 10.3390/foods9030296] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 02/25/2020] [Accepted: 03/02/2020] [Indexed: 02/07/2023] Open
Abstract
The increasing demand for healthy food products has promoted the use of germinated seeds to produce functional flours. In this study, germination conditions were optimized in barley grains with the aim to produce flours with high nutritional and biofunctional potential using response surface methodology (RSM). The impact of germination time (0.8-6 days) and temperature (12-20 °C) on barley quality was studied. Non-germinated barley was used as the control. The content of vitamins B1, B2 and C, and proteins increased notably after germination, especially at longer times, while levels of fat, carbohydrates, fibre, and b-glucan were reduced. Total phenolic compounds, g-aminobutyric acid and antioxidant activity determined by Oxygen Radical Absorbance Capacity increased between 2-fold and 4-fold during sprouting, depending on germination conditions and this increase was more pronounced at higher temperatures (16-20 °C) and longer times (5-6 days). Procyanidin B and ferulic acid were the main phenolics in the soluble and insoluble fraction, respectively. Procyanidin B levels decreased while bound ferulic acid content increased during germination. Germinated barley flours exhibited lower brightness and a higher glycemic index than the control ones. This study shows that germination at 16 °C for 3.5 days was the optimum process to obtain nutritious and functional barley flours. Under these conditions, sprouts retained 87% of the initial b-glucan content, and exhibited levels of ascorbic acid, riboflavin, phenolic compounds and GABA between 1.4-fold and 2.5-fold higher than the non-sprouted grain.
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Affiliation(s)
- Daniel Rico
- Subdirection of Research and Technology, Agro-Technological Institute of Castilla y León, Consejería de Agricultura y Ganadería, Finca de Zamadueñas, 47171 Valladolid, Spain; (D.R.); (M.d.C.G.); (A.B.M.-D.)
| | - Elena Peñas
- Department of Food Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), 28006 Madrid, Spain; (C.M.-V.); (J.F.)
| | - María del Carmen García
- Subdirection of Research and Technology, Agro-Technological Institute of Castilla y León, Consejería de Agricultura y Ganadería, Finca de Zamadueñas, 47171 Valladolid, Spain; (D.R.); (M.d.C.G.); (A.B.M.-D.)
| | - Cristina Martínez-Villaluenga
- Department of Food Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), 28006 Madrid, Spain; (C.M.-V.); (J.F.)
| | - Dilip K. Rai
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, 15 Dublin, Ireland; (D.K.R.); (R.I.B.)
| | - Rares I. Birsan
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, 15 Dublin, Ireland; (D.K.R.); (R.I.B.)
| | - Juana Frias
- Department of Food Characterization, Quality and Safety, Institute of Food Science, Technology and Nutrition (ICTAN-CSIC), 28006 Madrid, Spain; (C.M.-V.); (J.F.)
| | - Ana B. Martín-Diana
- Subdirection of Research and Technology, Agro-Technological Institute of Castilla y León, Consejería de Agricultura y Ganadería, Finca de Zamadueñas, 47171 Valladolid, Spain; (D.R.); (M.d.C.G.); (A.B.M.-D.)
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Bettenhausen HM, Benson A, Fisk S, Herb D, Hernandez J, Lim J, Queisser SH, Shellhammer TH, Vega V, Yao L, Heuberger AL, Hayes PM. Variation in Sensory Attributes and Volatile Compounds in Beers Brewed from Genetically Distinct Malts: An Integrated Sensory and Non-Targeted Metabolomics Approach. JOURNAL OF THE AMERICAN SOCIETY OF BREWING CHEMISTS 2020. [DOI: 10.1080/03610470.2019.1706037] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
| | | | - Scott Fisk
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, U.S.A.
| | - Dustin Herb
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, U.S.A.
| | - Javier Hernandez
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, U.S.A.
| | - Juyun Lim
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, U.S.A.
| | - Sue H. Queisser
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, U.S.A.
| | - Thomas H. Shellhammer
- Department of Food Science and Technology, Oregon State University, Corvallis, OR, U.S.A.
| | | | - Linxing Yao
- Proteomics and Metabolomics Facility, Colorado State University, Fort Collins, CO, U.S.A
| | - Adam L. Heuberger
- Department of Horticulture and Landscape Architecture, Colorado State University, CO, U.S.A.
| | - Patrick M. Hayes
- Department of Crop and Soil Science, Oregon State University, Corvallis, OR, U.S.A.
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Ksieniewicz-Woźniak E, Bryła M, Waśkiewicz A, Yoshinari T, Szymczyk K. Selected Trichothecenes in Barley Malt and Beer from Poland and an Assessment of Dietary Risks Associated with their Consumption. Toxins (Basel) 2019; 11:E715. [PMID: 31835298 PMCID: PMC6949925 DOI: 10.3390/toxins11120715] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Revised: 12/03/2019] [Accepted: 12/06/2019] [Indexed: 12/26/2022] Open
Abstract
Eighty-seven samples of malt from several Polish malting plants and 157 beer samples from the beer available on the Polish market (in 2018) were tested for Fusarium mycotoxins (deoxynivalenol (DON), nivalenol (NIV)), and their modified forms ((deoxynivalenol-3-glucoside (DON-3G), nivalenol-3-glucoside (NIV-3G), 3-acetyldeoxynivalenol (3-AcDON)). DON and its metabolite, DON-3G, were found the most, among the samples analyzed; DON and DON-3G were present in 90% and 91% of malt samples, and in 97% and 99% of beer samples, respectively. NIV was found in 24% of malt samples and in 64% of beer samples, and NIV-3G was found in 48% of malt samples and 39% of beer samples. In the malt samples, the mean concentration of DON was 52.9 µg/kg (range: 5.3-347.6 µg/kg) and that of DON-3G was 74.1 µg/kg (range: 4.4-410.3 µg/kg). In the beer samples, the mean concentration of DON was 12.3 µg/L (range: 1.2-156.5 µg/L) and that of DON-3G was 7.1 µg/L (range: 0.6-58.4 µg/L). The concentrations of other tested mycotoxins in the samples of malt and beer were several times lower. The risk of exposure to the tested mycotoxins, following the consumption of beer in Poland, was assessed. The corresponding probable daily intakes (PDIs) remained a small fraction of the tolerable daily intake (TDI). However, in the improbable worst-case scenario, in which every beer bottle consumed would be contaminated with mycotoxins present at the highest level observed among the analyzed beer samples, the PDI would exceed the TDI for DON and its metabolite after the consumption of a single bottle (0.5 L) of beer.
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Affiliation(s)
- Edyta Ksieniewicz-Woźniak
- Department of Food Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology, Rakowiecka 36, 02-532 Warsaw, Poland; (E.K.-W.); (K.S.)
| | - Marcin Bryła
- Department of Food Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology, Rakowiecka 36, 02-532 Warsaw, Poland; (E.K.-W.); (K.S.)
| | - Agnieszka Waśkiewicz
- Department of Chemistry, Poznan University of Life Sciences, Wojska Polskiego 75, 60-625 Poznan, Poland;
| | - Tomoya Yoshinari
- Division of Microbiology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-ku, Kawasaki-shi, Kanagawa 210-9501, Japan;
| | - Krystyna Szymczyk
- Department of Food Analysis, Prof. Waclaw Dabrowski Institute of Agricultural and Food Biotechnology, Rakowiecka 36, 02-532 Warsaw, Poland; (E.K.-W.); (K.S.)
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Wannenmacher J, Cotterchio C, Schlumberger M, Reuber V, Gastl M, Becker T. Technological influence on sensory stability and antioxidant activity of beers measured by ORAC and FRAP. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:6628-6637. [PMID: 31393605 DOI: 10.1002/jsfa.9979] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/27/2019] [Accepted: 08/05/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Many studies have confirmed a wide variation in the phenolic content and antioxidant activity of beers. However, when commercial beers are studied, there is usually no information available on the brewing technology applied. In this study, technological parameters were varied systematically to influence the antioxidant content of beer with a view to improving its flavor stability. High-throughput assays, ferric reducing antioxidant power (FRAP) and oxygen radical absorbance capacity (ORAC) were investigated as fast analytical methods to evaluate the influence of brewing technology on antioxidant activity. RESULTS Beers (n = 12) were brewed with systematic technological variations (malt modification, hopping regime) to influence the antioxidant potential. A late hop addition resulted in significantly higher phenolic content (high-performance liquid chromatography with diode-array detection - HPLC-DAD) and antioxidant activity. Raw protein content and malt modification significantly influenced phenolic content and the antioxidant activity of beers hopped at the beginning of wort boiling. Samples were stored under forced and natural conditions and were evaluated by a sensory panel. The decline of bitter iso-α-acids as an analytical marker for oxidative aging was significantly lower in beers brewed from malts with high raw protein content. These samples also had higher antioxidant activity values. Panelists gave higher ratings for beer quality to aged beers with a late hop addition. However, late hopping resulted in enhanced hoppy aroma attributes and therefore an altered aroma profile. CONCLUSIONS Both antioxidant capacity methods were well suited as fast methods to evaluate brewing raw material and technological influence on antioxidant activity. The appropriate choice of barley malt and the malting regime could be promising tools to enhance the antioxidant activity of traditionally hopped beers. © 2019 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Julia Wannenmacher
- Institute of Brewing and Beverage Technology, Technical University of Munich (TUM), Freising, Germany
| | - Christina Cotterchio
- Institute of Brewing and Beverage Technology, Technical University of Munich (TUM), Freising, Germany
| | - Maximilian Schlumberger
- Institute of Brewing and Beverage Technology, Technical University of Munich (TUM), Freising, Germany
| | - Valentin Reuber
- Institute of Brewing and Beverage Technology, Technical University of Munich (TUM), Freising, Germany
| | - Martina Gastl
- Institute of Brewing and Beverage Technology, Technical University of Munich (TUM), Freising, Germany
| | - Thomas Becker
- Institute of Brewing and Beverage Technology, Technical University of Munich (TUM), Freising, Germany
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Sun W, Liu C, Duan H, Niu C, Wang J, Zheng F, Li Y, Li Q. Isomerization of Gibberellic Acid During the Brewing Process. J Food Sci 2019; 84:1353-1361. [PMID: 31066915 DOI: 10.1111/1750-3841.14620] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2018] [Revised: 03/16/2019] [Accepted: 03/19/2019] [Indexed: 12/17/2022]
Abstract
Gibberellic acid (GA3) was added to three types of beer barley, and the chemical changes to GA3 during the beer brewing process were studied using HPLC. The results demonstrated that the GA3 concentration decreased throughout the malting, mashing, and boiling processes and that no GA3 was detected in the congress wort. A new substance, herein called Substance A, was detected by HPLC analysis using a C18 column; this substance exhibited retention characteristics different from GA3. The concentration of Substance A increased throughout the malting, mashing, and boiling processes. Mass spectrometry revealed that Substance A has the same molecular weight as GA3 and nuclear magnetic resonance studies determined that Substance A is a structural isomer of GA3. PRACTICAL APPLICATION: This study developed a new idea to understand GA3 behavior during the brewing, which provided a practical reference for food safety in beer and other fields using GA3 as a food additive.
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Affiliation(s)
- Weikang Sun
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Chunfeng Liu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Hongxu Duan
- School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Chengtuo Niu
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Jinjing Wang
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Feiyun Zheng
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Yongxian Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
| | - Qi Li
- Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China.,Synergetic Innovation Center of Food Safety and Nutrition, School of Biotechnology, Jiangnan Univ., Wuxi, 214122, China
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Ceccaroni D, Sileoni V, Marconi O, De Francesco G, Lee EG, Perretti G. Specialty rice malt optimization and improvement of rice malt beer aspect and aroma. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.09.060] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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35
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Kanauchi M, Kultgen E, Bamforth C. Low-molecular-weight materials from heavily roasted barley and malt with strong foam-stabilising potential. JOURNAL OF THE INSTITUTE OF BREWING 2018. [DOI: 10.1002/jib.538] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Makoto Kanauchi
- Department of Food Management; Miyagi University; 2-2-1 Hatatate, Taihaku-ku Sendai Miyagi 982-0215 Japan
| | - Emily Kultgen
- Department of Food Science and Technology; University of California; Davis CA 95616-8598 USA
| | - Charles Bamforth
- Department of Food Science and Technology; University of California; Davis CA 95616-8598 USA
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36
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Carvalho DO, Paulu A, Dostálek P, Guido LF. Measurement of catechin-7-O
-glucoside from barley to malt. JOURNAL OF THE INSTITUTE OF BREWING 2018. [DOI: 10.1002/jib.530] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Daniel O. Carvalho
- REQUIMTE/LAQV - Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; Portugal
| | - Aleš Paulu
- Department of Biotechnology, Faculty of Food and Biochemical Technology; University of Chemistry and Technology; Prague Czech Republic
| | - Pavel Dostálek
- Department of Biotechnology, Faculty of Food and Biochemical Technology; University of Chemistry and Technology; Prague Czech Republic
| | - Luís F. Guido
- REQUIMTE/LAQV - Department of Chemistry and Biochemistry, Faculty of Sciences; University of Porto; Portugal
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Viegas O, Prucha M, Gökmen V, Ferreira IMPLVO. Parameters affecting 5-hydroxymethylfurfural exposure from beer. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2018; 35:1464-1471. [PMID: 29873606 DOI: 10.1080/19440049.2018.1483584] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
5-Hydroxymethylfurfural (HMF) is generated during food and beverage heating processes and/or storage. Its daily intake, estimated as 4-10 mg day-1, is several orders of magnitude higher than other process contaminants. Beer can be of relevance to the evaluation of HMF exposure; however, the information concerning its occurrence in different types of beer and during product storage is scarce. Therefore, the major goal of this work was to assess the amounts of HMF in different commercial beers, as well as the impact of storage, to deepen knowledge about the contribution of beer to HMF exposure. Blonde beers presented a mean content of 4.29 ± 1.05 mg L-1, which was significantly lower (P ≤ 0.05) than those obtained for amber (6.84 ± 0.75 mg L-1) and dark beers (6.99 ± 0.52 mg L-1). Additionally, to study kinetic of HMF formation, fresh pilsner beers were stored at 30, 40 and 50°C during 40 days; a zero-order reaction was observed. The dependence of the rate constant on temperature was described by the Arrhenius equation and calculated activation energy was 101.85 kJ mol-1. Storage can increase drastically HMF content, which means higher exposure for consumers. Thus, beer contribution to HMF exposure should not be neglected, since the intake of 1 L of beer entails a consumption of 4-7 mg of HMF or even more, depending on storage time and temperature.
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Affiliation(s)
- Olga Viegas
- a LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia , Universidade do Porto , Porto , Portugal.,b Faculdade de Ciências da Nutrição e Alimentação , Universidade do Porto , Porto , Portugal
| | - Mafalda Prucha
- a LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia , Universidade do Porto , Porto , Portugal
| | - Vural Gökmen
- c Department of Food Engineering , Hacettepe University , Ankara , Turkey
| | - Isabel M P L V O Ferreira
- a LAQV/REQUIMTE, Laboratório de Bromatologia e Hidrologia, Departamento de Ciências Químicas, Faculdade de Farmácia , Universidade do Porto , Porto , Portugal
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Saleh ASM, Wang P, Wang N, Yang S, Xiao Z. Technologies for enhancement of bioactive components and potential health benefits of cereal and cereal-based foods: Research advances and application challenges. Crit Rev Food Sci Nutr 2018; 59:207-227. [PMID: 28846456 DOI: 10.1080/10408398.2017.1363711] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Cereal grains are a major source of human food and their production has steadily been increased during the last several decades to meet the demand of our increasing world population. The modernized society and the expansion of the cereal food industry created a need for highly efficient processing technologies, especially flour production. Earlier scientific research efforts have led to the invention of the modern steel roller mill, and the refined flour of wheat has become a basic component in most of cereal-based foods such as breads and pastries because of the unique functionality of wheat protein. On the other hand, epidemiological studies have found that consumption of whole cereal grains was health beneficial. The health benefit of whole cereal grain is attributed to the combined effects of micronutrients, phytochemicals, and dietary fibre, which are mainly located in the outer bran layer and the germ. However, the removal of bran and germ from cereal grains during polishing and milling results in refined flour and food products with lower bioactive compounds and dietary fibre contents than those from whole grain. Also, the level of bioactive compounds in cereal food is influenced by other food preparation procedures such as baking, cooking, extrusion, and puffing. Therefore, food scientists and nutritionists are searching for strategies and processing technologies to enhance the content and bioavailability of nutrients, bioactive compounds, and dietary fibre of cereal foods. The objective of this article was to review the research advances on technologies for the enhancement of bioactive compounds and dietary fibre contents of cereal and cereal-based foods. Bioactivities or biological effects of enhanced cereal and cereal-based foods are presented. Challenges facing the application of the proposed technologies in the food industry are also discussed.
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Affiliation(s)
- Ahmed S M Saleh
- a College of Grain Science and Technology , Shenyang Normal University , Shenyang , Liaoning , China.,b Department of Food Science and Technology , Faculty of Agriculture, Assiut University , Assiut , Egypt
| | - Peng Wang
- a College of Grain Science and Technology , Shenyang Normal University , Shenyang , Liaoning , China.,c College of Food Science , Northeast Agricultural University , Harbin , Heilongjiang , China
| | - Na Wang
- a College of Grain Science and Technology , Shenyang Normal University , Shenyang , Liaoning , China.,d College of Food , Shenyang Agricultural University , Shenyang , Liaoning , China
| | - Shu Yang
- a College of Grain Science and Technology , Shenyang Normal University , Shenyang , Liaoning , China.,d College of Food , Shenyang Agricultural University , Shenyang , Liaoning , China
| | - Zhigang Xiao
- a College of Grain Science and Technology , Shenyang Normal University , Shenyang , Liaoning , China.,c College of Food Science , Northeast Agricultural University , Harbin , Heilongjiang , China
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40
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Özcan MM, Aljuhaimi F, Uslu N. Effect of malt process steps on bioactive properties and fatty acid composition of barley, green malt and malt grains. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2018; 55:226-232. [PMID: 29358814 PMCID: PMC5756205 DOI: 10.1007/s13197-017-2920-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/28/2017] [Accepted: 09/29/2017] [Indexed: 10/18/2022]
Abstract
In this study, the effect of barley malt process on antioxidant activity, carotenoid content, oil yield, phenolic compounds and fatty acid composition of barley, green malt and malt was investigated. The highest antioxidant activity (79.80%) and total phenolic content (122.43 mg/100 g) was observed in green malt. Carotenoid content of green malt (1.71 µg/g) was higher than those of barley and malt. Green malt had the maximum (+)-catechin (69.06 mg/100 g), 1,2-dihydroxybenzene (37.21 mg/100 g), quercetin (30.78 mg/100 g) and isorhamnetin (22.44 mg/100 g) content. Oil contents of samples ranged from 1.73 to 2.13% and showed increase with malting process. While barley lipids contained 18.53% palmitic, 19.94% oleic and 51.74% linoleic acids, malt oil contained 17.33% palmitic, 15.62% oleic and 56.56% linoleic acids. Linoleic acid content increased during malting process while oleic and palmitic acid content decreased.
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