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Lee HJ, Park BR, Chewaka LS. A Comparative Study of Composition and Soluble Polysaccharide Content between Brewer's Spent Yeast and Cultured Yeast Cells. Foods 2024; 13:1567. [PMID: 38790867 PMCID: PMC11121356 DOI: 10.3390/foods13101567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 05/26/2024] Open
Abstract
Yeast, crucial in beer production, holds great potential owing to its ability to transform into a valuable by-product resource, known as brewer's spent yeast (BSY), with potentially beneficial physiological effects. This study aimed to compare the composition and soluble polysaccharide content of Brewer's spent yeast with those of cultured yeast strains, namely Saccharomyces cerevisiae (SC) and S. boulardii (SB), to facilitate the utilization of BSY as an alternative source of functional polysaccharides. BSY exhibited significantly higher carbohydrate content and lower crude protein content than SC and SB cells. The residues recovered through autolysis were 53.11%, 43.83%, and 44.99% for BSY, SC, and SB, respectively. Notably, the polysaccharide content of the BSY residue (641.90 μg/mg) was higher than that of SC (553.52 μg/mg) and SB (591.56 μg/mg). The yields of alkali-extracted water-soluble polysaccharides were 33.62%, 40.76%, and 42.97% for BSY, SC, and SB, respectively, with BSY comprising a comparable proportion of water-soluble saccharides made with SC and SB, including 49.31% mannan and 20.18% β-glucan. Furthermore, BSY demonstrated antioxidant activities, including superoxide dismutase (SOD), ABTS, and DPPH scavenging potential, suggesting its ability to mitigate oxidative stress. BSY also exhibited a significantly higher total phenolic compound content, indicating its potential to act as an effective functional food material.
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Affiliation(s)
| | | | - Legesse Shiferaw Chewaka
- Department of Agro-Food Resource, National Institute of Agricultural Science, Rural Development Administration (RDA), Jeonju 54875, Republic of Korea; (H.J.L.); (B.-R.P.)
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2
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Sirisena S, Chan S, Roberts N, Dal Maso S, Gras SL, J O Martin G. Influence of yeast growth conditions and proteolytic enzymes on the amino acid profiles of yeast hydrolysates: Implications for taste and nutrition. Food Chem 2024; 437:137906. [PMID: 37939420 DOI: 10.1016/j.foodchem.2023.137906] [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: 06/22/2023] [Revised: 10/16/2023] [Accepted: 10/28/2023] [Indexed: 11/10/2023]
Abstract
This study investigated the effects of aerobic and anaerobic growth and proteolytic enzymes on the amino acid content of yeast hydrolysates in relation to taste and nutrition. Saccharomyces cerevisiae ATCC5574 was grown under fed-batch aerobic or batch anaerobic conditions. Intracellular glutamic acid (Glu) concentrations were 18-fold higher in aerobic yeast. Hydrolysis with papain and alkaline protease released more amino acids (AA) than simple autolysis or hydrolysis with bromelain, most significantly when applied to aerobic yeast (∼2-fold increase). Autolysates and bromelain hydrolysates from aerobic yeast had low levels of bitter and essential AAs, with high levels of umami Glu. Papain and alkaline protease hydrolysates of aerobic yeast had high levels of umami, bitter and essential AAs. Autolysates/hydrolysates from anaerobic yeast had moderate, high, and low levels of bitter, essential and umami AAs. Selection of both yeast growth conditions and hydrolysis enzyme can manipulate the free AA profile and yield of hydrolysates.
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Affiliation(s)
- Sameera Sirisena
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Sitha Chan
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Nic Roberts
- Bega Foods, 1 Vegemite Way, Port Melbourne, Victoria 3207, Australia
| | - Sandra Dal Maso
- Bega Foods, 1 Vegemite Way, Port Melbourne, Victoria 3207, Australia
| | - Sally L Gras
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia; The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria 3010, Australia
| | - Gregory J O Martin
- Department of Chemical Engineering, The University of Melbourne, Parkville, Victoria 3010, Australia.
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3
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Maina AN, Schulze H, Kiarie EG. Response of broiler breeder pullets when fed hydrolyzed whole yeast from placement to 22 wk of age. Poult Sci 2024; 103:103383. [PMID: 38176370 PMCID: PMC10806125 DOI: 10.1016/j.psj.2023.103383] [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: 11/08/2023] [Revised: 12/11/2023] [Accepted: 12/12/2023] [Indexed: 01/06/2024] Open
Abstract
The study examined the effects of feeding broiler breeder pullets hydrolyzed whole yeast (HY) from hatch to 22 wk of age (WOA). A total of 524-day-old Ross 708 pullets were placed in floor pens (∼24 birds/pen) for the starter (0-4 WOA) and grower (5-18 WOA) phases, then transferred to the egg production facility and redistributed to ∼20 birds/pen for the prelay phase (19-22 WOA). Two diets were allocated to pens (0-18 WOA; n = 11) and (19-22 WOA; n-12). The diets were a control corn and soybean meal diet formulated to meet specifications and control plus 0.05% HY (HY). Birds had ad libitum access to feed in the first week and daily feed allocation based on pen BW from 2 WOA. Birds had free access to water throughout the trial. Body weight (BW) and uniformity (BW CV) were monitored. Boosters for infectious bronchitis and New Castle disease vaccines were administered at 18 WOA, and samples of pullets bled for antibody titer 5-day later. One pullet/pen was randomly selected, weighed, bled for plasma biochemistry, and necropsied for organ weights, ceca digesta for short-chain fatty acids (SCFA), and leg bones morphometry. In the starter and grower phases, birds fed HY were lighter and gained less (P < 0.05) than control birds. However, there were no diet effects (P > 0.05) on growth, the BW prelay phase, or BW uniformity throughout the trial. There were no (P > 0.05) diet effects on breast, gastrointestinal, liver and bursa weights, serum antibody titers, plasma biochemistry, SCFA and bone attributes. However, pullets fed HY had heavier (P = 0.047) spleen and tended to have lower (P = 0.080) plasma concentrations of aspartate aminotransferase (AST) relative to control pullets. In conclusion, the parameters assessed showed no negative consequences of feeding HY to broiler breeder pullets. However, effects on the spleen and plasma AST may indicate modest modulation of immunity and metabolism. The impact of the provision of HY during broiler breeder pullet phase on reproductive performance and chick quality should be investigated.
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Affiliation(s)
- Anderson N Maina
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada
| | | | - Elijah G Kiarie
- Department of Animal Biosciences, University of Guelph, Guelph, ON N1G 2W1, Canada.
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Mosibo OK, Ferrentino G, Udenigwe CC. Microalgae Proteins as Sustainable Ingredients in Novel Foods: Recent Developments and Challenges. Foods 2024; 13:733. [PMID: 38472846 DOI: 10.3390/foods13050733] [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: 01/14/2024] [Revised: 02/04/2024] [Accepted: 02/21/2024] [Indexed: 03/14/2024] Open
Abstract
Microalgae are receiving increased attention in the food sector as a sustainable ingredient due to their high protein content and nutritional value. They contain up to 70% proteins with the presence of all 20 essential amino acids, thus fulfilling human dietary requirements. Microalgae are considered sustainable and environmentally friendly compared to traditional protein sources as they require less land and a reduced amount of water for cultivation. Although microalgae's potential in nutritional quality and functional properties is well documented, no reviews have considered an in-depth analysis of the pros and cons of their addition to foods. The present work discusses recent findings on microalgae with respect to their protein content and nutritional quality, placing a special focus on formulated food products containing microalgae proteins. Several challenges are encountered in the production, processing, and commercialization of foods containing microalgae proteins. Solutions presented in recent studies highlight the future research and directions necessary to provide solutions for consumer acceptability of microalgae proteins and derived products.
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Affiliation(s)
- Ornella Kongi Mosibo
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 9A7, Canada
| | - Giovanna Ferrentino
- Faculty of Agriculture, Environmental and Food Sciences, Free University of Bozen-Bolzano, Piazza Università 5, 39100 Bolzano, Italy
| | - Chibuike C Udenigwe
- School of Nutrition Sciences, Faculty of Health Sciences, University of Ottawa, Ottawa, ON K1N 9A7, Canada
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Gao F, Li Q, Wei W, Wang Y, Song W, Yang X, Ji H, Zhou J, Xin Y, Tan Z, Pei J, Shi H. Preparation of Yeast Extract from Brewer's Yeast Waste and Its Potential Application as a Medium Constituent. Appl Biochem Biotechnol 2024:10.1007/s12010-024-04885-8. [PMID: 38386145 DOI: 10.1007/s12010-024-04885-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/12/2024] [Indexed: 02/23/2024]
Abstract
Yeast extract serves as a source of nutritional components essential for human dietary requirements, feed formulations, and the vital growth factors and nutrients necessary for microorganisms. However, the production cost of yeast extract using cultivated active dry yeast is relatively high. This study aims to utilize the autolysis of discarded yeast post beer brewing to produce yeast extract. The concentration, temperature, pH, and time conditions are systematically optimized. It reveals that the yield of amino nitrogen and solids in the extract was increased by 3.3% and 20.9% under the optimized conditions (1.2% wall-breaking enzyme, 1% yeast extract enzyme, and a hydrolysis time of 24 h) than that of the documented 4.03% and 69.05%. Additionally, a comparative analysis with commercially available yeast powder demonstrates that the yeast extract derived from this study adequately fulfills the nutritional requirements for microbial growth. Hence, the utilization of discarded beer yeast presents an opportunity for the valuable reclamation of waste yeast, showcasing promising potential applications.
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Affiliation(s)
- Feng Gao
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Qingfei Li
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Wei Wei
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Yutao Wang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Wancheng Song
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Xurui Yang
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Huai Ji
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Jia Zhou
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Ya Xin
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Zhongbiao Tan
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China
| | - Jianjun Pei
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210097, Jiangsu, China
| | - Hao Shi
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, Jiangsu, China.
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6
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Mirseyed PS, Kheirabadi S, Anbarteh R, H Ghaffari M. Assessment of mycotoxin sequestration efficacy in Saccharomyces cerevisiae by-products cultured in wheat bran and whey protein medium. Sci Rep 2024; 14:3101. [PMID: 38326556 PMCID: PMC10850169 DOI: 10.1038/s41598-024-53633-9] [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: 10/02/2023] [Accepted: 02/03/2024] [Indexed: 02/09/2024] Open
Abstract
Mycotoxins are metabolic products of fungi found in feed for farm animals and pose a major threat to food safety due to their adverse health effects. The development of strategies to reduce their bioavailability is crucial. In this context, the cell wall components of Saccharomyces cerevisiae (YCW), especially β-D-glucans and Mannan-oligosaccharide, have been recognized as potent mycotoxin binders. The objective of this research was to develop a novel culture medium to increase the biomass yield of S. cerevisiae and optimize cell disruption by stepwise physical lysis and hydrolytic preconditioning. This process resulted in a yield of approximately 56% reducing saccharides and 28.54% protein. Subsequently, the β-glucan was extracted after cell wall sequestration. The isolated YCW and extracted β-glucan were characterized both individually and synergistically to evaluate their antibacterial properties and analyze their Fourier transform infrared (FTIR) spectra. In vitro evaluation of antibacterial activity revealed that a concentration greater than 250 μg/mL of YCW-β-glucan blend significantly inhibited the growth of Gram-negative bacteria. In addition, this blend showed good adsorption of various mycotoxins, including Aflatoxin B1, Ochratoxin A, and Zearalenone, the latter of which exhibited a remarkable adsorption rate of 80.85%. This study highlights the promising potential of a combination of YCW and β-glucan as a robust strategy to address the pervasive problem of mycotoxin contamination in feed.
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Affiliation(s)
| | - Shahpour Kheirabadi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran, Karaj, Alborz, Iran
| | - Rojin Anbarteh
- Antimicrobial Resistance Research Center, Institute of Immunology and Infectious Disease, Iran University of Medical Sciences, Tehran, Iran
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7
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Oyón-Ardoiz M, Manjón E, Escribano-Bailón MT, García-Estévez I. Supramolecular study of the interaction between mannoproteins from Torulaspora delbrueckii and flavanols. Food Chem 2024; 430:137044. [PMID: 37536068 DOI: 10.1016/j.foodchem.2023.137044] [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: 03/02/2023] [Revised: 07/02/2023] [Accepted: 07/26/2023] [Indexed: 08/05/2023]
Abstract
In this work, three mannoprotein extracts were obtained from T. delbrueckii by enzymatic and chemical treatments. The obtained mannoprotein extracts showed important differences in their molecular weight distribution and monosaccharide composition, although no significant differences were found in their protein content. In order to evaluate the possible influence of mannoprotein characteristics in the interaction with flavanols, mannoprotein-flavanol interactions were studied by HPLC-DAD-MS and ITC. The results obtained indicate that the mannoprotein extracts were able to precipitate flavanols to a different extent. Furthermore, the degree of flavanol precipitation seemed not to be related to the affinity of the interaction but to the type of intermolecular forces. In this sense, a higher proportion of hydrogen bonding could favor a greater crosslinking between aggregates promoting flavanol precipitation. This, in turn, could be related to the MP characteristics since the presence of β-glucan moieties might have an effect on the formation of hydrogen bonds.
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Affiliation(s)
- María Oyón-Ardoiz
- Department of Analytical Chemistry, Nutrition and Food Science, Universidad de Salamanca, Salamanca E37007, Spain.
| | - Elvira Manjón
- Department of Analytical Chemistry, Nutrition and Food Science, Universidad de Salamanca, Salamanca E37007, Spain.
| | | | - Ignacio García-Estévez
- Department of Analytical Chemistry, Nutrition and Food Science, Universidad de Salamanca, Salamanca E37007, Spain.
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Moreira LDPD, Corich V, Jørgensen EG, Devold TG, Nadai C, Giacomini A, Porcellato D. Potential bioactive peptides obtained after in vitro gastrointestinal digestion of wine lees from sequential fermentations. Food Res Int 2024; 176:113833. [PMID: 38163727 DOI: 10.1016/j.foodres.2023.113833] [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: 09/26/2023] [Revised: 11/30/2023] [Accepted: 12/05/2023] [Indexed: 01/03/2024]
Abstract
The biotechnological reuse of winery by-products has great potential to increase the value and sustainability of the wine industry. Recent studies revealed that yeast biomass can be an exciting source of bioactive peptides with possible benefits for human health, and its incorporation in plant-based foods is considered innovative and sustainable. In this study, we aimed to identify, through in silico analyses, potential bioactive peptides from yeast extracts after in vitro digestion. Wine lees from a non-Saccharomyces oenological yeast, Starmerella bacillaris FRI751, Saccharomyces cerevisiae EC1118, and sequential fermentation performed with both strains (SEQ) were recovered in a synthetic must. Cellular pellets were enzymatically treated with zymolyase, and the yeast extracts were submitted to in vitro gastrointestinal digestions. LC-MS/MS sequenced the hydrolyzed peptides, and their potential bioactivity was inferred. S. bacillaris FRI751 fermentation showed 132 peptide sequences, S. cerevisiae EC1118 60, SEQ 89. A total of 243 unique peptide sequences were identified across the groups. Furthermore, based on the peptide sequence, the FRI751 extract showed the highest potential antihypertensive with 275 bioactive fragments. Other bioactivities, such as antimicrobial and immunomodulatory, were also identified in all yeast extracts. A potential antiobesity bioactive peptide VVP was identified only in the yeast extract from S. bacillaris single strain. The wine lees from S. bacillaris single strain and SEQ fermentation are a richer source of potential bioactive peptides than those from S. cerevisiae fermentation. This study opens new possibilities in the valorization of winemaking by-products.
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Affiliation(s)
- Luiza de Paula Dias Moreira
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Legnaro, PD, Italy; Faculty of Chemistry, Biotechnology, and Food Science, The Norwegian University of Live Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Viviana Corich
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Legnaro, PD, Italy; Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, TV, Italy.
| | - Emilie Gullberg Jørgensen
- Faculty of Chemistry, Biotechnology, and Food Science, The Norwegian University of Live Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Tove Gulbrandsen Devold
- Faculty of Chemistry, Biotechnology, and Food Science, The Norwegian University of Live Sciences, P.O. Box 5003, N-1432 Ås, Norway
| | - Chiara Nadai
- Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, TV, Italy; Department of Land, Environment, Agriculture and Forestry (TESAF), University of Padova, Legnaro, PD, Italy
| | - Alessio Giacomini
- Department of Agronomy Food Natural Resources Animals and Environment (DAFNAE), University of Padova, Legnaro, PD, Italy; Interdepartmental Centre for Research in Viticulture and Enology (CIRVE), University of Padova, Conegliano, TV, Italy
| | - Davide Porcellato
- Faculty of Chemistry, Biotechnology, and Food Science, The Norwegian University of Live Sciences, P.O. Box 5003, N-1432 Ås, Norway
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Jeong S, Jung JH, Jung KW, Ryu S, Lim S. From microbes to molecules: a review of microbial-driven antioxidant peptide generation. World J Microbiol Biotechnol 2023; 40:29. [PMID: 38057638 DOI: 10.1007/s11274-023-03826-7] [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: 09/18/2023] [Accepted: 11/01/2023] [Indexed: 12/08/2023]
Abstract
Oxidative stress, arising from excess reactive oxygen species (ROS) or insufficient antioxidant defenses, can damage cellular components, such as lipids, proteins, and nucleic acids, resulting in cellular dysfunction. The relationship between oxidative stress and various health disorders has prompted investigations into potent antioxidants that counteract ROS's detrimental impacts. In this context, antioxidant peptides, composed of two to twenty amino acids, have emerged as a unique group of antioxidants and have found applications in food, nutraceuticals, and pharmaceuticals. Antioxidant peptides are sourced from natural ingredients, mainly proteins derived from foods like milk, eggs, meat, fish, and plants. These peptides can be freed from their precursor proteins through enzymatic hydrolysis, fermentation, or gastrointestinal digestion. Previously published studies focused on the origin and production methods of antioxidant peptides, describing their structure-activity relationship and the mechanisms of food-derived antioxidant peptides. Yet, the role of microorganisms hasn't been sufficiently explored, even though the production of antioxidant peptides frequently employs a variety of microorganisms, such as bacteria, fungi, and yeasts, which are recognized for producing specific proteases. This review aims to provide a comprehensive overview of microorganisms and their proteases participating in enzymatic hydrolysis and microbial fermentation to produce antioxidant peptides. This review also covers endogenous peptides originating from microorganisms. The information obtained from this review might guide the discovery of novel organisms adept at generating antioxidant peptides.
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Affiliation(s)
- Soyoung Jeong
- Radiation Biotechnology Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jong-Hyun Jung
- Radiation Biotechnology Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
| | - Kwang-Woo Jung
- Radiation Biotechnology Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea
| | - Sangryeol Ryu
- Department of Food and Animal Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
- Department of Agricultural Biotechnology, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sangyong Lim
- Radiation Biotechnology Division, Korea Atomic Energy Research Institute, Jeongeup, 56212, Republic of Korea.
- Department of Radiation Science, University of Science and Technology, Daejeon, 34113, Republic of Korea.
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Wu Y, Li P, Jiang Z, Sun X, He H, Yan P, Xu Y, Liu Y. Bioinspired yeast-based β-glucan system for oral drug delivery. Carbohydr Polym 2023; 319:121163. [PMID: 37567689 DOI: 10.1016/j.carbpol.2023.121163] [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: 02/16/2023] [Revised: 06/06/2023] [Accepted: 06/27/2023] [Indexed: 08/13/2023]
Abstract
Oral drug delivery is the preferred route of drug administration for patients, especially those who need long-term medication. Recently, bioinspired drug delivery systems have emerged for the oral delivery of various therapeutics. Among them, the yeast-based β-glucan system is a novel and promising platform, for oral administration that can overcome the biological barriers of the harsh gastrointestinal environment. Remarkably, the yeast-based β-glucan system not only protects the drug through the harsh gastrointestinal environment but also achieves targeted therapeutic effects by specifically recognizing immune cells, especially macrophages. Otherwise, it exhibits immunomodulatory properties. Based on the pleasant characteristics of the yeast-based β-glucan system, they are widely used in various macrophage-related diseases for oral administration. In this review, we introduced the structure and function of yeast-based β-glucan. Subsequently, we further summarized the current preparation methods of yeast-based β-glucan carriers and the strategies for preparing yeast-based β-glucan drug delivery systems. In addition, we focus on discussing the applications of β-glucan drug delivery systems in various diseases. Finally, the current challenges and future perspectives of the β-glucan drug delivery system are introduced.
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Affiliation(s)
- Ya Wu
- Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
| | - Pengyun Li
- Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China
| | - Zongzhe Jiang
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Xiaolei Sun
- Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China
| | - Huqiang He
- Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China
| | - Pijun Yan
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China
| | - Yong Xu
- Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Department of Endocrinology and Metabolism, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, Sichuan, China.
| | - Yong Liu
- Department of Vascular Surgery, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Metabolic Vascular Disease Key Laboratory of Sichuan Province, The Affiliated Hospital of Southwest Medical University, 646000 Luzhou, China; Key Laboratory of Medical Electrophysiology, Ministry of Education & Medical Electrophysiological Key Laboratory of Sichuan Province, Institute of Cardiovascular Research, Southwest Medical University, Luzhou 646000, China.
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11
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Utama GL, Oktaviani L, Balia RL, Rialita T. Potential Application of Yeast Cell Wall Biopolymers as Probiotic Encapsulants. Polymers (Basel) 2023; 15:3481. [PMID: 37631538 PMCID: PMC10459707 DOI: 10.3390/polym15163481] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 08/01/2023] [Accepted: 08/11/2023] [Indexed: 08/27/2023] Open
Abstract
Biopolymers of yeast cell walls, such as β-glucan, mannoprotein, and chitin, may serve as viable encapsulants for probiotics. Due to its thermal stability, β-glucan is a suitable cryoprotectant for probiotic microorganisms during freeze-drying. Mannoprotein has been shown to increase the adhesion of probiotic microorganisms to intestinal epithelial cells. Typically, chitin is utilized in the form of its derivatives, particularly chitosan, which is derived via deacetylation. Brewery waste has shown potential as a source of β-glucan that can be optimally extracted through thermolysis and sonication to yield up to 14% β-glucan, which can then be processed with protease and spray drying to achieve utmost purity. While laminarinase and sodium deodecyle sulfate were used to isolate and extract mannoproteins and glucanase was used to purify them, hexadecyltrimethylammonium bromide precipitation was used to improve the amount of purified mannoproteins to 7.25 percent. The maximum chitin yield of 2.4% was attained by continuing the acid-alkali reaction procedure, which was then followed by dialysis and lyophilization. Separation and purification of yeast cell wall biopolymers via diethylaminoethyl (DEAE) anion exchange chromatography can be used to increase the purity of β-glucan, whose purity in turn can also be increased using concanavalin-A chromatography based on the glucan/mannan ratio. In the meantime, mannoproteins can be purified via affinity chromatography that can be combined with zymolase treatment. Then, dialysis can be continued to obtain chitin with high purity. β-glucans, mannoproteins, and chitosan-derived yeast cell walls have been shown to promote the survival of probiotic microorganisms in the digestive tract. In addition, the prebiotic activity of β-glucans and mannoproteins can combine with microorganisms to form synbiotics.
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Affiliation(s)
- Gemilang Lara Utama
- Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km. 21, Jatinangor, Sumedang 45363, Indonesia; (L.O.); (T.R.)
- Center for Environment and Sustainability Science, Universitas Padjadjaran, Jalan Sekeloa Selatan 1 No 1, Bandung 40134, Indonesia
| | - Lidya Oktaviani
- Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km. 21, Jatinangor, Sumedang 45363, Indonesia; (L.O.); (T.R.)
| | - Roostita Lobo Balia
- Veterinary Study Program, Faculty of Medicine, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km. 21, Jatinangor, Sumedang 45363, Indonesia;
| | - Tita Rialita
- Faculty of Agro-Industrial Technology, Universitas Padjadjaran, Jalan Raya Bandung-Sumedang Km. 21, Jatinangor, Sumedang 45363, Indonesia; (L.O.); (T.R.)
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12
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Lin Z, Li Y, Wang M, Li H, Wang Y, Li X, Zhang Y, Gong D, Fu L, Wang S, Long D. Protective effects of yeast extract against alcohol-induced liver injury in rats. Front Microbiol 2023; 14:1217449. [PMID: 37547679 PMCID: PMC10399763 DOI: 10.3389/fmicb.2023.1217449] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/03/2023] [Indexed: 08/08/2023] Open
Abstract
Oxidative stress, inflammatory response, and gut-liver axis dysbiosis have been suggested as the primarily involved in the pathogenesis of alcoholic liver injury. Previous research established that yeast extract (YE) has antioxidant, immune-boosting or microbiota-regulating properties. However, there is currently lack of information regarding the efficacy of YE on alcoholic liver injury. This study seeks to obtain data that will help to address this research gap using a Wistar male rat experimental model. Histologic and biochemical analysis results showed that the groups treated with both low-dose yeast extract (YEL) and high-dose yeast extract (YEH) had lower degrees of alcohol-induced liver injury. The abundance of Peptococcus and Ruminococcus reduced in the low-dose yeast extract (YEL) group, while that of Peptococcus, Romboutsia, Parasutterella, and Faecalibaculum reduced in the high-dose (YEH) group. Furthermore, Spearman analysis showed that the gut microbes were significantly associated with several liver-related indicators. For the analysis of differential metabolites and enriched pathways in the YEL group, the abundance of lysophosphatidylcholine (16:0/0:0) significantly increased, and then the levels of histamine, adenosine and 5' -adenine nucleotide were remarkedly elevated in the YEH group. These findings suggest that both high and low doses of YE can have different protective effects on liver injury in alcoholic liver disease (ALD) rats, in addition to improving gut microbiota disorder. Besides, high-dose YE has been found to be more effective than low-dose YE in metabolic regulation, as well as in dealing with oxidative stress and inflammatory responses.
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Affiliation(s)
- Zihan Lin
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Yongjun Li
- Gansu Provincial Center for Disease Control and Prevention, Lanzhou, China
| | - Man Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Huan Li
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Yihong Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Xin Li
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Ying Zhang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Di Gong
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Lin Fu
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Siying Wang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Danfeng Long
- School of Public Health, Lanzhou University, Lanzhou, China
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13
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Dumitrașcu L, Lanciu Dorofte A, Grigore-Gurgu L, Aprodu I. Proteases as Tools for Modulating the Antioxidant Activity and Functionality of the Spent Brewer's Yeast Proteins. Molecules 2023; 28:molecules28093763. [PMID: 37175173 PMCID: PMC10180474 DOI: 10.3390/molecules28093763] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/20/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
The functionality of the peptides obtained through enzymatic hydrolysis of spent brewer's yeast was investigated. Hydrolysis was carried out for 4-67 h with bromelain, neutrase and trypsin. The resulting hydrolysates were characterized in terms of physical-chemical, antioxidant and techno-functional properties. The solid residues and soluble protein contents increased with the hydrolysis time, the highest values being measured in samples hydrolyzed with neutrase. Regardless of the hydrolysis time, the maximum degree of hydrolysis was measured in the sample hydrolyzed with neutrase, while the lowest was in the sample hydrolyzed with trypsin. The protein hydrolysate obtained with neutrase exhibited the highest DPPH radical scavenging activity (116.9 ± 2.9 μM TE/g dw), followed by the sample hydrolyzed with trypsin (102.8 ± 2.7 μM TE/g dw). Upon ultrafiltration, the fraction of low molecular weight peptides (<3 kDa) released by bromelain presented the highest antioxidant activity (50.06 ± 0.39 μM TE/g dw). The enzymes influenced the foaming properties and the emulsions-forming ability of the hydrolysates. The trypsin ensured the obtaining of proteins hydrolysate with the highest foam overrun and stability. The emulsions based on hydrolysates obtained with neutrase exhibited the highest viscosity at a shear rate over 10 s-1. These results indicate that the investigated proteases are suitable for modulating the overall functionality of the yeast proteins.
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Affiliation(s)
- Loredana Dumitrașcu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800008 Galati, Romania
| | - Andreea Lanciu Dorofte
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800008 Galati, Romania
| | - Leontina Grigore-Gurgu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800008 Galati, Romania
| | - Iuliana Aprodu
- Faculty of Food Science and Engineering, Dunarea de Jos University of Galati, 111 Domneasca Str., 800008 Galati, Romania
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14
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Yin Y, Song Y, Jia Y, Xia J, Bai R, Kong X. Sodium Dynamics in the Cellular Environment. J Am Chem Soc 2023; 145:10522-10532. [PMID: 37104830 DOI: 10.1021/jacs.2c13271] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Sodium ions are essential for the functions of biological cells, and they are maintained at the balance between intra- and extracellular environments. The quantitative assessment of intra- and extracellular sodium as well as its dynamics can provide crucial physiological information on a living system. 23Na nuclear magnetic resonance (NMR) is a powerful and noninvasive technique to probe the local environment and dynamics of sodium ions. However, due to the complex relaxation behavior of the quadrupolar nucleus in the intermediate-motion regime and because of the heterogeneous compartments and diverse molecular interactions in the cellular environment, the understanding of the 23Na NMR signal in biological systems is still at the early stage. In this work, we characterize the relaxation and diffusion of sodium ions in the solutions of proteins and polysaccharides, as well as in the in vitro samples of living cells. The multi-exponential behavior of 23Na transverse relaxation has been analyzed according to the relaxation theory to derive the crucial information related to the ionic dynamics and molecular binding in the solutions. The bi-compartment model of transverse relaxation and diffusion measurements can corroborate each other to quantify the fractions of intra- and extracellular sodium. We show that 23Na relaxation and diffusion can be used to monitor the viability of human cells, which offers versatile NMR metrics for in vivo studies.
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Affiliation(s)
- Yu Yin
- Department of Chemistry, Zhejiang University, 310027 Hangzhou, P. R. China
| | - Yifan Song
- Department of Chemistry, Zhejiang University, 310027 Hangzhou, P. R. China
| | - Yinhang Jia
- Key Laboratory of Biomedical Engineering of Education Ministry, College of Biomedical Engineering and Instrument Science, Zhejiang University, 310027 Hangzhou, Zhejiang, P. R. China
| | - Juntao Xia
- Department of Chemistry, Zhejiang University, 310027 Hangzhou, P. R. China
| | - Ruiliang Bai
- Key Laboratory of Biomedical Engineering of Education Ministry, College of Biomedical Engineering and Instrument Science, Zhejiang University, 310027 Hangzhou, Zhejiang, P. R. China
- Interdisciplinary Institute of Neuroscience and Technology, School of Medicine, Zhejiang University, 310029 Hangzhou, China
- Department of Physical Medicine and Rehabilitation, Sir Run Run Shaw Hospital, Zhejiang University, 310016 Hangzhou, China
| | - Xueqian Kong
- Department of Chemistry, Zhejiang University, 310027 Hangzhou, P. R. China
- Department of Physical Medicine and Rehabilitation, Sir Run Run Shaw Hospital, Zhejiang University, 310016 Hangzhou, China
- Institute of Translational Medicine, Shanghai Jiao Tong University, 200240 Shanghai, P. R. China
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15
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Ma J, Sun Y, Meng D, Zhou Z, Zhang Y, Yang R. Yeast proteins: The novel and sustainable alternative protein in food applications. Trends Food Sci Technol 2023. [DOI: 10.1016/j.tifs.2023.04.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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16
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Tao Z, Yuan H, Liu M, Liu Q, Zhang S, Liu H, Jiang Y, Huang D, Wang T. Yeast Extract: Characteristics, Production, Applications and Future Perspectives. J Microbiol Biotechnol 2023; 33:151-166. [PMID: 36474327 PMCID: PMC9998214 DOI: 10.4014/jmb.2207.07057] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 12/13/2022]
Abstract
Yeast extract is a product prepared mainly from waste brewer's yeast, which is rich in nucleotides, proteins, amino acids, sugars and a variety of trace elements, and has the advantages of low production cost and abundant supply of raw material. Consequently, yeast extracts are widely used in various fields as animal feed additives, food flavoring agents and additives, cosmetic supplements, and microbial fermentation media; however, their full potential has not yet been realized. To improve understanding of current research knowledge, this review summarizes the ingredients, production technology, and applications of yeast extracts, and discusses the relationship between their properties and applications. Developmental trends and future prospects of yeast extract are also previewed, with the aim of providing a theoretical basis for the development and expansion of future applications.
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Affiliation(s)
- Zekun Tao
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Haibo Yuan
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Meng Liu
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Qian Liu
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Siyi Zhang
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Hongling Liu
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Yi Jiang
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Di Huang
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
| | - Tengfei Wang
- State Key Laboratory of Bio-Based Material and Green Papermaking (LBMP), Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China.,Key Laboratory of Shandong Microbial Engineering, School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, Shandong, P.R. China
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17
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Ryan BJ, Kinsella GK, Henehan GT. Protein Extraction and Purification by Differential Solubilization. Methods Mol Biol 2023; 2699:349-368. [PMID: 37647006 DOI: 10.1007/978-1-0716-3362-5_17] [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] [Indexed: 09/01/2023]
Abstract
The preparation of purified soluble proteins for biochemical studies is essential and the solubility of a protein of interest in various media is central to this process. Selectively altering the solubility of a protein is a rapid and economical step in protein purification and is based on exploiting the inherent physicochemical properties of a polypeptide. Precipitation of proteins, released from cells upon lysis, is often used to concentrate a protein of interest before further purification steps (e.g., ion exchange chromatography, size exclusion chromatography etc).Recombinant proteins may be expressed in host cells as insoluble inclusion bodies due to various influences during overexpression. Such inclusion bodies can often be solubilized to be reconstituted as functional, correctly folded proteins.In this chapter, we examine strategies for extraction/precipitation/solubilization of proteins for protein purification. We also present bioinformatic tools to aid in understanding a protein's propensity to aggregate/solubilize that will be a useful starting point for the development of protein extraction, precipitation, and selective re-solubilization procedures.
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Affiliation(s)
- Barry J Ryan
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, Dublin, Ireland
| | - Gemma K Kinsella
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, Dublin, Ireland
| | - Gary T Henehan
- School of Food Science and Environmental Health, Technological University Dublin, Grangegorman, Dublin, Ireland.
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18
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Effect of Dietary Supplementation of Hydrolyzed Yeast on Growth Performance, Digestibility, Rumen Fermentation, and Hematology in Growing Beef Cattle. Animals (Basel) 2022; 12:ani12182473. [PMID: 36139332 PMCID: PMC9495054 DOI: 10.3390/ani12182473] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 09/10/2022] [Accepted: 09/12/2022] [Indexed: 11/25/2022] Open
Abstract
This experiment was conducted to assess the effect of hydrolyzed yeast (HY) on growth performance, nutrient digestibility, rumen fermentation, and hematology in growing crossbred Bos indicus cattle. Twenty crossbred beef cattle with an initial body weight (BW) of 142 ± 12 kg were randomly assigned to one of four treatments for 90 d in a randomized complete block design (RCBD) having five blocks based on a homogenous subpopulation of sex and BW. Cattle were fed with a total mixed ration (TMR) and supplemented with HY at 0, 1, 2, and 3 g/kg dry matter (DM), respectively. Supplementation with the HY did not change average daily gain (ADG), dry matter intake (DMI), and gain to feed ratio (G:F) (p ≥ 0.06). The addition of HY did not adversely affect nutrient intake (p ≥ 0.48), while the digestibility of crude protein (CP) increased quadratically (p= 0.03) in the cattle receiving HY. The addition of HY did not affect rumen pH, but NH3-N concentration increased linearly (p = 0.02) in the cattle. The total volatile fatty acid (total VFA) increased quadratically (p= 0.03) when cattle were fed with HY supplementation. The proportion of acetate decreased cubically (p= 0.03) while propionate increased cubically (p= 0.01), resulting in a decrease in the acetate to propionate ratio (p= 0.01) when cattle were fed with HY supplementation. In addition, acetate was the lowest, but total VFA and propionate were the highest in cattle fed the HY at 2 g/kg DM. Butyrate increased cubically (p = 0.02) with the addition of HY. The protozoal and fungal populations were similar among treatments (p ≥ 0.11), but the bacterial population increased linearly (p < 0.01) with the addition of HY. Supplementation of HY did not influence blood urea nitrogen (BUN), red blood cells (RBC), hemoglobin, hematocrit, white blood cells (WBC), lymphocytes, or eosinophils (p≥ 0.10). However, monocytes and neutrophils increased linearly (p = 0.04 and p = 0.01, respectively) by HY supplementation. In conclusion, supplementation of HY at 2 g/kg DM promotes CP digestibility, rumen fermentation efficiency, and hematology but does not affect the growth performance of growing beef cattle.
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19
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Uclaray CC, Vidallon MLP, Almeda RA, Cumagun CJR, Reyes CT, Rodriguez EB. Encapsulation of wild oregano, Plectranthus amboinicus (Lour.) Spreng, phenolic extract in baker's yeast for the postharvest control of anthracnose in papaya. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:4657-4667. [PMID: 35178723 DOI: 10.1002/jsfa.11826] [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: 09/20/2021] [Revised: 02/08/2022] [Accepted: 02/18/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND Anthracnose caused by Colletotrichum gloeosporioides is considered as a major postharvest disease affecting many fruits. This plant disease is traditionally managed with synthetic fungicides, which are generally toxic and are linked to pathogen resistance. Recently, microencapsulated bioactives have been developed as potential alternative strategies to these methods, while utilizing natural fungicides and other phytochemicals. Wild oregano, Plectranthus amboinicus (Lour.) Spreng, contains potent antimicrobial phenolics, but these compounds are volatile and relatively unstable, which limits their efficacy during application. Herein, a baker's yeast microencapsulation system was applied to improve the stability of wild oregano phenolic extract (WOPE) and enhance its antifungal activity against anthracnose. RESULTS Encapsulation of WOPE in plasmolyzed yeast cells afforded a high encapsulation efficiency (93%) and yielded WOPE-loaded yeast microcapsules (WLYMs) with an average diameter of 2.65 μm. Storage stability studies showed WLYMs are stable for at least 4 months. A 24 -h in vitro release experiment showed that WLYMs had an initial burst release upon redispersion in water, followed by a controlled release to about 80% of the loaded WOPE. Upon application as a spray-type postharvest treatment for papaya, WLYMs exhibited a significantly improved mycelial inhibitory action against C. gloeosporioides and greatly reduced the anthracnose symptoms in papaya fruits. CONCLUSION This study presented a yeast microencapsulation system that can effectively stabilize WOPE and enhance its antifungal activity, making this microparticle formulation a promising environmentally safe postharvest treatment option to combat anthracnose symptoms in papaya fruits. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Cristina C Uclaray
- Institute of Chemistry, College of Arts and Science, University of the Philippines, Los Baños, Philippines
| | - Mark Louis P Vidallon
- Institute of Chemistry, College of Arts and Science, University of the Philippines, Los Baños, Philippines
- School of Chemistry, Monash University, Clayton, VIC, Australia
| | - Ronaniel A Almeda
- Institute of Agricultural and Bio-Systems Engineering, College of Engineering and Agro-Industrial Technology, University of the Philippines, Los Baños, Philippines
| | - Christian Joseph R Cumagun
- Institute of Weed Science, Entomology and Plant Pathology, College of Agriculture and Food Science, University of the Philippines, Los Baños, Philippines
- University of Idaho, Parma Research and Extension Center, 29603 U of I Lane, Parma, Idaho, USA
| | - Charisse T Reyes
- School of Chemistry, Monash University, Clayton, VIC, Australia
- Faculty of Education, University of the Philippines Open University, Los Baños, Philippines
| | - Evelyn B Rodriguez
- Institute of Chemistry, College of Arts and Science, University of the Philippines, Los Baños, Philippines
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20
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Takalloo Z, Nemati R, Kazemi M, Ghafari H, HasanSajedi R. Acceleration of Yeast Autolysis by Addition of Fatty Acids, Ethanol and Alkaline Protease. IRANIAN JOURNAL OF BIOTECHNOLOGY 2022; 20:e3036. [PMID: 36381284 PMCID: PMC9618019 DOI: 10.30498/ijb.2022.282895.3036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND Autolysate products from yeast origin are very interesting for food, feed, cosmetic, pharmaceutical, and fermentation industries. The lysis process greatly influences the quality and efficiency of the final autolysates. OBJECTIVES Here, we have compared four lysis methods based on autolysis, plasmolysis (with ethanol 1.5% (v/v) and coconut fatty acids 1% (w/w)) and hydrolysis (with alkaline protease 0.4 % (v/w)) on degrading the baker's yeast Saccharomyces cerevisiae. MATERIALS AND METHODS The efficiency of processes was evaluated according to the recovered solid and protein contents, release of intracellular materials, cell viability, microscopy imaging, degree of hydrolysis and electrophoresis studies. RESULTS Results showed that the increased recovered solids and proteins, as well as a higher degree of hydrolysis (DH) were obtained for the enzymatic hydrolyzed cells using alkaline protease. SDS-PAGE analysis also confirmed the results. Further, functionality of the final products by agglutination test showed that the hydrolyzed cells could effectively bind pathogenic bacteria compared to the other cell lysates. CONCLUSIONS In conclusion, this work provides adequate evidence for efficiency of alkaline protease for producing the nutritional cell lysates from baker's S. cerevisiae used in food, feed, cosmetic, and pharmaceutical applications. Moreover, this was the first report on using coconut fatty acids and alkaline protease in lysis of baker's yeast.
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Affiliation(s)
- Zeinab Takalloo
- Kimiazyme Company, Modares Science & Technology Park, Tarbiat Modares University, Tehran, Iran
| | - Robabeh Nemati
- Kimiazyme Company, Modares Science & Technology Park, Tarbiat Modares University, Tehran, Iran
| | - Marjan Kazemi
- Kimiazyme Company, Modares Science & Technology Park, Tarbiat Modares University, Tehran, Iran
| | - Hadi Ghafari
- Department of Microbiology, Faculty of Veterinary Medicine, Karaj Branch, Islamic Azad University, Alborz, Iran
| | - Reza HasanSajedi
- Kimiazyme Company, Modares Science & Technology Park, Tarbiat Modares University, Tehran, Iran
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
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21
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Valorization of fish waste and sugarcane bagasse for Alcalase production by Bacillus megaterium via a circular bioeconomy model. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104358] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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22
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Yeast-Derived Products: The Role of Hydrolyzed Yeast and Yeast Culture in Poultry Nutrition—A Review. Animals (Basel) 2022; 12:ani12111426. [PMID: 35681890 PMCID: PMC9179594 DOI: 10.3390/ani12111426] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/26/2022] [Accepted: 05/30/2022] [Indexed: 12/20/2022] Open
Abstract
Simple Summary Yeast and yeast-derived products are largely employed in animal nutrition to support animals’ health and to improve their performance. Thanks to their components, including mannans, β-glucans, nucleotides, vitamins, and other compounds, yeasts have numerous beneficial effects. Among yeast-derived products, hydrolyzed yeasts and yeast cultures have received less attention, but, although the results are somewhat conflicting, in most of the cases, the available literature shows improved performance and health in poultry. Thus, the aim of this review is to provide an overview of hydrolyzed-yeast and yeast-culture employment in poultry nutrition, exploring their effects on the production performance, immune response, oxidative status, gut health, and nutrient digestibility. A brief description of the main yeast bioactive compounds is also provided. Abstract Yeasts are single-cell eukaryotic microorganisms that are largely employed in animal nutrition for their beneficial effects, which are owed to their cellular components and bioactive compounds, among which are mannans, β-glucans, nucleotides, mannan oligosaccharides, and others. While the employment of live yeast cells as probiotics in poultry nutrition has already been largely reviewed, less information is available on yeast-derived products, such as hydrolyzed yeast (HY) and yeast culture (YC). The aim of this review is to provide the reader with an overview of the available body of literature on HY and YC and their effects on poultry. A brief description of the main components of the yeast cell that is considered to be responsible for the beneficial effects on animals’ health is also provided. HY and YC appear to have beneficial effects on the poultry growth and production performance, as well as on the immune response and gut health. Most of the beneficial effects of HY and YC have been attributed to their ability to modulate the gut microbiota, stimulating the growth of beneficial bacteria and reducing pathogen colonization. However, there are still many areas to be investigated to better understand and disentangle the effects and mechanisms of action of HY and YC.
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23
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Identification of Antibacterial Peptide Candidates Encrypted in Stress-Related and Metabolic Saccharomyces cerevisiae Proteins. Pharmaceuticals (Basel) 2022; 15:ph15020163. [PMID: 35215278 PMCID: PMC8877035 DOI: 10.3390/ph15020163] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 01/20/2022] [Accepted: 01/24/2022] [Indexed: 02/06/2023] Open
Abstract
The protein-rich nature of Saccharomyces cerevisiae has led this yeast to the spotlight concerning the search for antimicrobial peptides. Herein, a <10 kDa peptide-rich extract displaying antibacterial activity was obtained through the autolysis of yeast biomass under mild thermal treatment with self-proteolysis by endogenous peptidases. Estimated IC50 for the peptide pools obtained by FPLC gel filtration indicated improved antibacterial activities against foodborne bacteria and bacteria of clinical interest. Similarly, the estimated cytotoxicity concentrations against healthy human fibroblasts, alongside selective indices ≥10, indicates the fractions are safe, at least in a mixture format, for human tissues. Nano-LC-MS/MS analysis revealed that the peptides in FPLC fractions could be derived from both induced-proteolysis and proteasome activity in abundant proteins, up-regulated under stress conditions during S. cerevisiae biomass manufacturing, including those coded by TDH1/2/3, HSP12, SSA1/2, ADH1/2, CDC19, PGK1, PPI1, PDC1, and GMP1, as well as by other non-abundant proteins. Fifty-eight AMP candidate sequences were predicted following an in silico analysis using four independent algorithms, indicating their possible contribution to the bacterial inactivation observed in the peptides pool, which deserve special attention for further validation of individual functionality. S. cerevisiae-biomass peptides, an unconventional but abundant source of pharmaceuticals, may be promissory adjuvants to treat infectious diseases that are poorly sensitive to conventional antibiotics.
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24
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Osmoporation is a versatile technique to encapsulate fisetin using the probiotic bacteria Lactobacillus acidophilus. Appl Microbiol Biotechnol 2022; 106:1031-1044. [DOI: 10.1007/s00253-021-11735-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/07/2021] [Accepted: 12/11/2021] [Indexed: 12/21/2022]
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25
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Xu J, Hussain M, Su W, Yao Q, Yang G, Zhong Y, Zhou L, Huang X, Wang Z, Gu Q, Ren Y, Li H. Effects of novel cellulase (Cel 906) and probiotic yeast fermentation on antioxidant and anti-inflammatory activities of vine tea ( Ampelopsis grossedentata). Front Bioeng Biotechnol 2022; 10:1006316. [PMID: 36185429 PMCID: PMC9521311 DOI: 10.3389/fbioe.2022.1006316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 08/30/2022] [Indexed: 12/08/2022] Open
Abstract
Vine tea (Ampelopsis grossedentata) is a plant resource with good nutritional and medicinal, and is widely consumed in China. This study aimed to develop a functional vine tea fermentation broth using microbial fermentation and cellulase degradation. First, the most suitable probiotics for vine tea fermentation were screened, and the fermentation conditions were optimized. Then, a new cellulase (Cel 906, MW076177) was added to evaluate the changes in the contents of effective substances and to study its efficacy. The results show that saccharomyces cerevisiae Y-401 was identified as the best strain, the optimal fermentation conditions were a time of 94.60 h, feeding concentration of 115.21 g/L, and temperature of about 34.97°C. The vine tea fermentation broth has a strong inhibitory ability on 2,2'-azinobis3-ethylbenzothiazoline-6-sulfonic acid (ABTS) (99.73%), peroxyl (53.15%), superoxide anion radicals (84.13%), and 1,1-Diphenyl-2-trinitrophenylhydrazine (DPPH) (92.48%). It has a decent inhibitory impact on the cell viability, tyrosinase activity (32.25%), and melanin synthesis (63.52%) of B16-F10 melanoma cells induced by α-MSH. Inflammatory cell recruitment was reduced in a zebrafish inflammation model. Therefore, this vine tea fermented broth has strong antioxidant, anti-melanoma, and anti-inflammatory effects, and has healthcare potential as a probiotic tea.
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Affiliation(s)
- Jin Xu
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Key Laboratory of Bioactive Drug Research, Guangzhou, China
| | - Mubasher Hussain
- Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Engineering Research Center for Mineral Oil Pesticides, Institute of Zoology, Guangdong Academy of Science, Guangzhou, China
| | - Wenfeng Su
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Key Laboratory of Bioactive Drug Research, Guangzhou, China
| | - Qian Yao
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Key Laboratory of Bioactive Drug Research, Guangzhou, China
| | - Guandong Yang
- CAS Testing Technical Services (Guangzhou) Co., Ltd., Guangzhou, China
| | - Yu Zhong
- CAS Testing Technical Services (Guangzhou) Co., Ltd., Guangzhou, China
| | - Lin Zhou
- CAS Testing Technical Services (Guangzhou) Co., Ltd., Guangzhou, China
| | - Xiaoting Huang
- Guangzhou Ruby Biotechnology Co., Ltd., Guangzhou, China
| | - Zhixiang Wang
- Guangdong Molecular Probe and Biomedical Imaging Engineering Technology Research Center, Guangzhou, China
| | - Quliang Gu
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Key Laboratory of Bioactive Drug Research, Guangzhou, China
| | - Yifei Ren
- Guangzhou Hua Shuo Biotechnology Co., Ltd., Guangzhou, China
- *Correspondence: Yifei Ren, ; He Li,
| | - He Li
- Key Specialty of Clinical Pharmacy, The First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou, China
- Guangdong Key Laboratory of Bioactive Drug Research, Guangzhou, China
- *Correspondence: Yifei Ren, ; He Li,
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26
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Tan C, Huang M, McClements DJ, Sun B, Wang J. Yeast cell-derived delivery systems for bioactives. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.10.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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27
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Bioactive peptides from yeast: A comparative review on production methods, bioactivity, structure-function relationship, and stability. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.10.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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28
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Demirgül F, Şimşek Ö, Bozkurt F, Dertli E, Sağdıç O. Production and characterization of yeast extracts produced by Saccharomyces cerevisiae, Saccharomyces boulardii and Kluyveromyces marxianus. Prep Biochem Biotechnol 2021; 52:657-667. [PMID: 34632953 DOI: 10.1080/10826068.2021.1983833] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
In recent years, prejudice in society against monosodium glutamate (MSG) has directed food manufacturers to alternative sources. Yeast extracts are considered as "natural" due to the production process and stand out due to their nutritional properties as well as giving a flavor similar to MSG. In this study, chemical, functional and flavor properties of yeast extract powders produced from Saccharomyces cerevisiae TGM10, Saccharomyces boulardii S11 and Kluyveromyces marxianus TGM66 were evaluated. Results revealed that the most protein-rich sample was S. cerevisiae TGM10 extract (69.17%), followed by S. boulardii S11 (66.16%) and K. marxianus TGM66 (62.42%) extracts, respectively and S. cerevisiae TGM10 extract was also the richest yeast extract for essential amino acids. Additionally, flavor-enhancing amino acids such as glutamic acid, aspartic acid, alanine and glycine were dominant in S. cerevisiae TGM10 extract (47.41 g/100 g protein). Sensorial evaluation of yeast extracts demonstrated that salty taste, umami taste and meaty flavor scores of yeast extracts were lower than MSG whereas for fruity flavor, yeast extracts had the highest scores. These findings revealed the potential of three yeast strains to produce yeast extracts in order to increase the nutritional value and flavor of foods.
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Affiliation(s)
- Furkan Demirgül
- Department of Gastronomy and Culinary Arts, Doğuş University, Faculty of Fine Arts and Design, Istanbul, Turkey.,Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey
| | - Ömer Şimşek
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey
| | - Fatih Bozkurt
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey
| | - Enes Dertli
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey
| | - Osman Sağdıç
- Department of Food Engineering, Faculty of Chemical and Metallurgical Engineering, Yıldız Technical University, Istanbul, Turkey
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29
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Cetinkaya N, Koc TB, Karabulut I. Oxidative Stability and In Vitro Release Properties of Encapsulated Wheat Germ Oil in
Saccharomyces cerevisiae
Cell‐Based Microcapsules. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202100064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nilgun Cetinkaya
- Department of Food Engineering Faculty of Engineering Inonu University Malatya 44280 Turkey
| | - Tugca Bilenler Koc
- Department of Food Engineering Faculty of Engineering Inonu University Malatya 44280 Turkey
| | - Ihsan Karabulut
- Department of Food Engineering Faculty of Engineering Inonu University Malatya 44280 Turkey
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30
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Pereira PR, Freitas CS, Paschoalin VMF. Saccharomyces cerevisiae biomass as a source of next-generation food preservatives: Evaluating potential proteins as a source of antimicrobial peptides. Compr Rev Food Sci Food Saf 2021; 20:4450-4479. [PMID: 34378312 DOI: 10.1111/1541-4337.12798] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 06/02/2021] [Accepted: 06/09/2021] [Indexed: 01/05/2023]
Abstract
Saccharomyces cerevisiae is the main biotechnological tool for the production of Baker's or Brewer's biomasses, largely applied in beverage and fermented-food production. Through its gene expression reprogramming and production of compounds that inactivate the growth of other microorganisms, S. cerevisiae is able to grow in adverse environments and in complex microbial consortia, as in fruit pulps and root flour fermentations. The distinct set of up-regulated genes throughout yeast biomass propagation includes those involved in sugar fermentation, ethanol metabolization, and in protective responses against abiotic stresses. These high abundant proteins are precursors of several peptides with promising health-beneficial activities such as antihypertensive, antioxidant, antimicrobial, immunomodulatory, anti-obesity, antidiabetes, and mitogenic properties. An in silico investigation of these S. cerevisiae derived peptides produced during yeast biomass propagation or induced by physicochemical treatments were performed using four algorithms to predict antimicrobial candidates encrypted in abundantly expressed stress-related proteins encoded by different genes like AHP1, TSA1, HSP26, SOD1, HSP10, and UTR2, or metabolic enzymes involved in carbon source utilization, like ENO1/2, TDH1/2/3, ADH1/2, FBA1, and PDC1. Glyceraldehyde-3-phosphate dehydrogenase and enolase II are noteworthy precursor proteins, since they exhibited the highest scores concerning the release of antimicrobial peptide candidates. Considering the set of genes upregulated during biomass propagation, we conclude that S. cerevisiae biomass, a food-grade product consumed and marketed worldwide, should be considered a safe and nonseasonal source for designing next-generation bioactive agents, especially protein encrypting antimicrobial peptides that display broad spectra activity and could reduce the emergence of microbial resistance while also avoiding cytotoxicity.
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Affiliation(s)
- Patricia R Pereira
- Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos, 149, Rio de Janeiro, 21941-909, Brazil
| | - Cyntia S Freitas
- Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos, 149, Rio de Janeiro, 21941-909, Brazil
| | - Vania M F Paschoalin
- Chemistry Institute, Federal University of Rio de Janeiro (UFRJ), Av. Athos da Silveira Ramos, 149, Rio de Janeiro, 21941-909, Brazil
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31
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Yeast Cells in Microencapsulation. General Features and Controlling Factors of the Encapsulation Process. Molecules 2021; 26:molecules26113123. [PMID: 34073703 PMCID: PMC8197184 DOI: 10.3390/molecules26113123] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 02/07/2023] Open
Abstract
Besides their best-known uses in the food and fermentation industry, yeasts have also found application as microcapsules. In the encapsulation process, exogenous and most typically hydrophobic compounds diffuse and end up being passively entrapped in the cell body, and can be released upon application of appropriate stimuli. Yeast cells can be employed either living or dead, intact, permeabilized, or even emptied of all their original cytoplasmic contents. The main selling points of this set of encapsulation technologies, which to date has predominantly targeted food and-to a lesser extent-pharmaceutical applications, are the low cost, biodegradability and biocompatibility of the capsules, coupled to their sustainable origin (e.g., spent yeast from brewing). This review aims to provide a broad overview of the different kinds of yeast-based microcapsules and of the main physico-chemical characteristics that control the encapsulation process and its efficiency.
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32
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Boulton C. Provocation: all yeast cells are born equal, but some grow to be more equal than others. JOURNAL OF THE INSTITUTE OF BREWING 2021. [DOI: 10.1002/jib.647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Dadkhodazade E, Khanniri E, Khorshidian N, Hosseini SM, Mortazavian AM, Moghaddas Kia E. Yeast cells for encapsulation of bioactive compounds in food products: A review. Biotechnol Prog 2021; 37:e3138. [PMID: 33634951 DOI: 10.1002/btpr.3138] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 12/21/2022]
Abstract
Nowadays bioactive compounds have gained great attention in food and drug industries owing to their health aspects as well as antimicrobial and antioxidant attributes. Nevertheless, their bioavailability, bioactivity, and stability can be affected in different conditions and during storage. In addition, some bioactive compounds have undesirable flavor that restrict their application especially at high dosage in food products. Therefore, food industry needs to find novel techniques to overcome these problems. Microencapsulation is a technique, which can fulfill the mentioned requirements. Also, there are many wall materials for use in encapsulation procedure such as proteins, carbohydrates, lipids, and various kinds of polymers. The utilization of food-grade and safe carriers have attracted great interest for encapsulation of food ingredients. Yeast cells are known as a novel carrier for microencapsulation of bioactive compounds with benefits such as controlled release, protection of core substances without a significant effect on sensory properties of food products. Saccharomyces cerevisiae was abundantly used as a suitable carrier for food ingredients. Whole cells as well as cell particles like cell wall and plasma membrane can act as a wall material in encapsulation process. Compared to other wall materials, yeast cells are biodegradable, have better protection for bioactive compounds and the process of microencapsulation by them is relatively simple. The encapsulation efficiency can be improved by applying some pretreatments of yeast cells. In this article, the potential application of yeast cells as an encapsulating material for encapsulation of bioactive compounds is reviewed.
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Affiliation(s)
- Elahe Dadkhodazade
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elham Khanniri
- Student Research Committee, Department of Food Science and Technology, National Nutrition and Food Technology Research Institute, Faculty of Nutrition Sciences and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Nasim Khorshidian
- Food Safety Research Center (Salt), Semnan University of Medical Sciences, Semnan, Iran
| | - Seyede Marziyeh Hosseini
- Department of Food Science and Technology, Faculty of Nutrition Sciences and Food Technology/National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Amir M Mortazavian
- Food Safety Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Moghaddas Kia
- Department of Food Science and Technology, Maragheh University of Medical Science, Maragheh, Iran
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34
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Alves EM, Souza JFD, Oliva Neto PD. Advances in yeast autolysis technology - a faster and safer new bioprocess. BRAZILIAN JOURNAL OF FOOD TECHNOLOGY 2021. [DOI: 10.1590/1981-6723.24920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract The yeast autolysis process - an endogenous and irreversible lytic event, which occurs in cells caused by the action of intracellular enzymes, proteases and carbohydrases - is a well-known and an economic process, however, there is a constant risk of serious microbial contamination since there are many nutrients in the broth and this process is slow, favoring the growing of pathogens. The present work comes up with an attempt to accelerate the autolysis of Saccharomyces cerevisiae with focus on the high yield of yeast extract production through a fast, economic and simple technology. The proposed strategy is based on decreasing the pH of the yeast suspension at the beginning of autolysis through an acid shock to activate the cell autolytic system under stressful conditions of temperature and pH. The influence of cell concentration, temperature, time and acid shock at the beginning of the autolysis on yeast extract yields were studied. The best yields of proteins and total solids were observed for autolysis treated with acid shock (H2SO4 10 µL/g of dried yeast and final pH 4.4) at 60 °C (36, 84% of protein and 48, 47% of total solids extracted) and gradual increase of temperature 45 to 60 °C (41.20% of protein and 58.48% of total solids extracted). The shock could increase the speed of the process since the control reached about 30% of extract at 60 °C and the same experiment, however, with acid shock reached more than 43% in 12 h. When considering time in an industrial scale, it could be noted that the time was very important for the productivity as well as avoiding risk of pathogen contamination in autolysis. These results were very relevant for industrial purposes in the production of yeast extract, autolyzed yeast and glucan and mannan.
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35
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Multi-omics Approach Reveals How Yeast Extract Peptides Shape Streptococcus thermophilus Metabolism. Appl Environ Microbiol 2020; 86:AEM.01446-20. [PMID: 32769193 DOI: 10.1128/aem.01446-20] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Accepted: 08/04/2020] [Indexed: 12/28/2022] Open
Abstract
Peptides present in growth media are essential for nitrogen nutrition and optimal growth of lactic acid bacteria. In addition, according to their amino acid composition, they can also directly or indirectly play regulatory roles and influence global metabolism. This is especially relevant during the propagation phase to produce high cell counts of active lactic acid bacteria used as starters in the dairy industry. In the present work, we aimed at investigating how the respective compositions of two different yeast extracts, with a specific focus on peptide content, influenced Streptococcus thermophilus metabolism during growth under pH-controlled conditions. In addition to free amino acid quantification, we used a multi-omics approach (peptidomics, proteomics, and transcriptomics) to identify peptides initially present in the two culture media and to follow S. thermophilus gene expression and bacterial protein production during growth. The free amino acid and peptide compositions of the two yeast extracts differed qualitatively and quantitatively. Nevertheless, the two yeast extracts sustained similar levels of growth of S. thermophilus and led to equivalent final biomasses. However, transcriptomics and proteomics showed differential gene expression and protein production in several S. thermophilus metabolic pathways, especially amino acid, citrate, urease, purine, and pyrimidine metabolisms. The probable role of the regulator CodY is discussed in this context. Moreover, we observed significant differences in the production of regulators and of a quorum sensing regulatory system. The possible roles of yeast extract peptides on the modulation of the quorum sensing system expression are evaluated.IMPORTANCE Improving the performance and industrial robustness of bacteria used in fermentations and food industry remains a challenge. We showed here that two Streptococcus thermophilus fermentations, performed with the same strain in media that differ only by their yeast extract compositions and, more especially, their peptide contents, led to similar growth kinetics and final biomasses, but several genes and proteins were differentially expressed/produced. In other words, subtle variations in peptide composition of the growth medium can finely tune the metabolism status of the starter. Our work, therefore, suggests that acting on growth medium components and especially on their peptide content, we could modulate bacterial metabolism and produce bacteria differently programmed for further purposes. This might have applications for preparing active starter cultures.
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