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Pellerin G, Doyen A. Effect of thermal and defatting treatments on the composition, protein profile and structure of house cricket (Acheta domesticus) protein extracts. Food Chem 2024; 448:139149. [PMID: 38555689 DOI: 10.1016/j.foodchem.2024.139149] [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: 09/26/2023] [Revised: 02/27/2024] [Accepted: 03/24/2024] [Indexed: 04/02/2024]
Abstract
This study investigated the impact of blanching (100 °C, 40 s), defatting method (maceration, Soxhlet) and solvent polarity (hexane, ethanol) on the profile, structure and solubility of house cricket protein extracts. Blanching and Soxhlet using ethanol impacted the protein profile, with a lower content of myosin heavy chain and a higher abundance of low molecular weight proteins (<25 kDa). Moreover, ethanol induced aggregation of non-blanched cricket proteins, with a 13-72% reduction in protein recovery yield. The protein secondary structure of non-blanched extracts was also affected by ethanol with 18% more β-sheets. Furthermore, blanching resulted in a lower protein surface hydrophobicity by a factor of 3 to 7, with no impact of solvent polarity. Finally, the solubility of protein extracts remained >75%, regardless of the blanching and defatting methods. These findings, combined with the evaluation of techno-functional properties, could be used for the development of cricket-based protein ingredients for food formulations.
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Affiliation(s)
- Geneviève Pellerin
- Department of Food Sciences, Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC G1V 0A6, Canada.
| | - Alain Doyen
- Department of Food Sciences, Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC G1V 0A6, Canada.
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2
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Rout S, Srivastav PP. Modification of soy protein isolate and pea protein isolate by high voltage dielectric barrier discharge (DBD) atmospheric cold plasma: Comparative study on structural, rheological and techno-functional characteristics. Food Chem 2024; 447:138914. [PMID: 38460320 DOI: 10.1016/j.foodchem.2024.138914] [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: 12/13/2023] [Revised: 02/24/2024] [Accepted: 02/29/2024] [Indexed: 03/11/2024]
Abstract
The modification in structural, rheological, and techno-functional characteristics of soy and pea protein isolates (SPI and PPI) due to dielectric barrier discharge cold plasma (DBD-CP) were assessed. The increased carbonyl groups in both samples with cold plasma (CP) treatment led to a reduction in free sulfhydryl groups. Moreover, protein solubility of treated proteins exhibited significant improvements, reaching up to 59.07 % and 41.4 % for SPI and PPI, respectively, at 30 kV for 8 min. Rheological analyses indicated that storage modulus (G') was greater than loss modulus (G″) for CP-treated protein gels. Furthermore, in vitro protein digestibility of SPI exhibited a remarkable improvement (4.78 %) at 30 kV for 6 min compared to PPI (3.23 %). Spectroscopic analyses, including circular dichroism and Fourier Transform-Raman, indicated partial breakdown and loss of α-helix structure in both samples, leading to the aggregation of proteins. Thus, DBD-CP induces reactive oxygen species-mediated oxidation, modifying the secondary and tertiary structures of samples.
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Affiliation(s)
- Srutee Rout
- Department of Agricultural and Food Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India.
| | - Prem Prakash Srivastav
- Department of Agricultural and Food Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302, India
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3
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Cheng M, Tao Y, Wang C, Li A. Chitosan-coated soybean protein isolate/lecithin nanoparticles for enhancing the stability and bioaccessibility of phytosterol. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:4242-4250. [PMID: 38288644 DOI: 10.1002/jsfa.13307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/20/2023] [Accepted: 01/11/2024] [Indexed: 04/11/2024]
Abstract
BACKGROUND Phytosterols (PS) have various beneficial effects on human health, especially the property of reducing blood cholesterol. However, the low solubility and bioaccessibility of PS have greatly limited their application in functional food ingredients. RESULTS To improve the bioaccessibility and stability of PS, chitosan-coated PS nanoparticles (CS-PNP) were successfully prepared by self-assembly. The properties of CS-PNP, including size, zeta potential, encapsulation efficiency (EE) and loading amount (LA) were characterised. The optimisation of CS concentration (0.4 mg mL-1) and pH (3.5) resulted in the formation of CS-PNP with an EE of over 90% and a particle size of 187.7 nm. Due to the special properties of CS chitosan, the interaction between CS and soybean protein isolate (SPI)/lecithin (SL) led to the formation of a soluble complex. CS-PNP exhibited good stability to temperature variations but was more sensitive to salt ions. During in vitro digestion, CS efficiently maintained the stability of nanoparticles against the hydrolysis of SPI by pepsin under acidic conditions. However, these nanoparticles tended to aggregate in a neutral intestinal environment. After 3 h of in vitro digestion, the bioaccessibility of PS increased from 18.2% of free PS to 63.5% of CS-PNP. CONCLUSION Overall, these results highlight the potential of chitosan-coated nanoparticles as effective carriers for the oral administration of PS. This multilayer construction may serve as a promising for applications in food products as delivery vehicles for nutraceuticals. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Ming Cheng
- Department of Food Science and Pharmaceutics, Zhejiang Ocean University, Zhoushan, China
- Department of Food Science and Technology, Wuhan Polytechnic University, Wuhan, China
| | - Ye Tao
- Department of Food Science and Pharmaceutics, Zhejiang Ocean University, Zhoushan, China
- Department of Food Science and Technology, Wuhan Polytechnic University, Wuhan, China
| | - Chunwei Wang
- Department of Food Science and Technology, Wuhan Polytechnic University, Wuhan, China
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Ao Li
- Department of Food Science and Technology, Wuhan Polytechnic University, Wuhan, China
- Hubei Key Laboratory of Natural Products Research and Development, College of Biological and Pharmaceutical Sciences, China Three Gorges University, Yichang, China
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4
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Van De Walle S, Gifuni I, Coleman B, Baune MC, Rodrigues A, Cardoso H, Fanari F, Muylaert K, Van Royen G. Innovative vs classical methods for drying heterotrophic Chlorella vulgaris: Impact on protein quality and sensory properties. Food Res Int 2024; 182:114142. [PMID: 38519160 DOI: 10.1016/j.foodres.2024.114142] [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: 12/20/2023] [Revised: 02/09/2024] [Accepted: 02/17/2024] [Indexed: 03/24/2024]
Abstract
Drying is a necessary step in the microalgae production chain to reduce microbial load and oxidative degradation of the end product. Depending on the differences in applied temperature and treatment time, the process of drying can have a substantial impact on protein quality and aroma, important characteristics determining the incorporation potential in food products. In this study, we compared the drying of heterotrophic Chorella vulgaris with both innovative (agitated thin film drying (ATFD), pulse combustion drying (PCD) and solar drying (SolD)) and commonly used drying techniques (spray drying (SprD) and freeze drying (FD)). To evaluate the impact on protein quality, we evaluated techno-functional properties, in vitro digestibility (INFOGEST) as well as protein denaturation using differential scanning calorimetry (DSC). A sensory analysis was performed by a trained expert panel, combined with headspace solid-phase microextraction (HS-SPME) - gas chromatography-mass spectrometry (GC-MS) to determine volatile organic compounds (VOCs). ATFD was found to increase techno-functional properties such as gelling, water holding and solubility as well as in vitro protein digestibility. These observations could be related to induced cell disruption and protein denaturation by ATFD. Sensory analysis indicated an increased earthy off-flavor after ATFD. Interestingly, the high-temperature PCD led to an increase in cacao odor while low-temperature FD resulted in lower flavor, odors and VOCs. These results demonstrate that protein quality and sensorial properties of C. vulgaris can be steered through the type of drying, which could help in the selection of application-specific drying methods. Overall, this work could promote the incorporation of microalgal single cell proteins in different innovative food products.
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Affiliation(s)
- Simon Van De Walle
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium; Biology Department KULAK, KU Leuven Kulak, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium.
| | - Imma Gifuni
- AlgoSource Technologies SAS, 7 Rue Eugène Cornet, 44600 Saint-Nazaire, France
| | - Bert Coleman
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium
| | - Marie-Christin Baune
- German Institute of Food Technologies (DIL e.V.), Prof.-von-Klitzing-Str. 7, 49610 Quakenbrück, Germany
| | | | - Helena Cardoso
- Allmicroalgae Natural Products S.A., 2445-413 Pataias, Portugal
| | - Fabio Fanari
- Food Industries, Institute of Agriculture and Food Research and Technology (IRTA), Finca Camps i Armet s/n, 17121 Monells, Spain
| | - Koenraad Muylaert
- Biology Department KULAK, KU Leuven Kulak, Etienne Sabbelaan 53, 8500 Kortrijk, Belgium
| | - Geert Van Royen
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090 Melle, Belgium
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5
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Li J, Janssen F, Verfaillie D, Brijs K, Delcour JA, Van Royen G, Wouters AGB. Varying precipitation conditions allow directing the composition and physical properties of soy protein concentrates. J Food Sci 2024; 89:925-940. [PMID: 38235999 DOI: 10.1111/1750-3841.16907] [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: 05/26/2023] [Revised: 12/04/2023] [Accepted: 12/12/2023] [Indexed: 01/19/2024]
Abstract
Soy protein concentrates (SPCs) are common food ingredients. They typically contain 65% (w/w) protein and ∼30% (w/w) carbohydrate. SPCs can be obtained with various protein precipitation conditions. A systematic study of the impact of these different protein precipitation protocols on the SPC protein composition and physical properties is still lacking. Here, SPCs were prepared via three different protocols, that is, isoelectric (pH 3.5-5.5), aqueous ethanol (50%-70% [v/v]), and Ca2+ ion (5-50 mM) based precipitations, and analyzed for (protein) composition, protein thermal properties, dispersibility, and water-holding capacity. SPCs precipitated at pH 5.5 or by adding 15 mM Ca2+ ions had a lower 7S/11S globulin ratio (∼0.40) than that (∼0.50) of all other SPC samples. Protein in SPCs obtained by isoelectric precipitation denatured at a significantly higher temperature than those in ethanol- or Ca2+ -precipitated SPCs. Precipitation with 50%-60% (v/v) ethanol resulted in pronounced denaturation of 2S albumin and 7S globulin fractions in SPCs. Additionally, increasing the precipitation pH from 3.5 to 5.5 and increasing the Ca2+ ion concentration from 15 to 50 mM caused a strong decrease of both the dispersibility of the protein in SPC and its water-holding capacity at pH 7.0. In conclusion, this study demonstrates that the SPC production process can be directed to obtain ingredients with versatile protein physicochemical properties toward potential food applications. PRACTICAL APPLICATION: This study demonstrates that applying different protein precipitation protocols allows obtaining SPCs that vary widely in (protein) composition and physical properties (such as protein dispersibility and water-holding capacity). These varying traits can greatly influence the suitability of SPCs as functional ingredients for specific applications, such as the production of food foams, emulsions, gels, and plant-based meat alternatives. The generated knowledge may allow targeted production of SPCs for specific applications.
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Affiliation(s)
- Jiashu Li
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Frederik Janssen
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Diete Verfaillie
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
- Technology and Food Science Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
| | - Kristof Brijs
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Jan A Delcour
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
| | - Geert Van Royen
- Technology and Food Science Unit, Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Melle, Belgium
| | - Arno G B Wouters
- Laboratory of Food Chemistry and Biochemistry and Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Leuven, Belgium
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Tang H, Li X, Chen J, Liu B, Tang R, Chen Y, Li H, Zou L, Shi Q. Effects of Dextran on the Gel Properties of Faba Bean Protein Isolates Prepared Using Different Processes. Gels 2023; 9:972. [PMID: 38131958 PMCID: PMC10742445 DOI: 10.3390/gels9120972] [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: 11/23/2023] [Revised: 12/08/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023] Open
Abstract
The properties of faba bean (Vicia faba L.) protein isolate (FPI) gels depend on their starting protein material and can be modulated by the addition of polysaccharides. In order to investigate the interplay between these two factors, commercial FPI (FPI1) and FPI prepared in-house (FPI2) were used to fabricate glucono-delta-lactone-induced gels, with or without dextran (DX) addition. FPI1 exhibited lower solubility in water and a larger mean particle size, likely because it experienced extensive degradation due to the intense conditions involved in its preparation. The FPI1 gel showed a similar water-holding capacity as the FPI2 gel; however, its hardness was lower and viscoelasticity was higher. After DX addition, the hardness of both FPI gels decreased, while their water-holding capacity increased. Interestingly, DX addition decreased the viscoelasticity of the FPI1 gel but enhanced the viscoelasticity of the FPI2 gel. The microstructural analysis demonstrated that the density of the aggregation network decreased in the FPI1 gel after DX addition but increased in the FPI2 gel. This was consistent with the changes observed in the dominant protein interaction forces in these gels after DX addition. Overall, these findings have the potential to guide ingredient selection for the tailored preparation of FPI gels.
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Affiliation(s)
- Huihua Tang
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Xinyi Li
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Junfei Chen
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Biqin Liu
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Rong Tang
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Yuchun Chen
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Hong Li
- College of Food Science and Technology, Yunnan Agricultural University, Kunming 650100, China
| | - Ling Zou
- Institute of Flower Research, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
| | - Qiao Shi
- Institute of Agro-Products Processing, Yunnan Academy of Agricultural Sciences, Kunming 65022, China
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7
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Woern C, Grossmann L. Microbial gas fermentation technology for sustainable food protein production. Biotechnol Adv 2023; 69:108240. [PMID: 37647973 DOI: 10.1016/j.biotechadv.2023.108240] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/16/2023] [Accepted: 08/21/2023] [Indexed: 09/01/2023]
Abstract
The development of novel, sustainable, and robust food production technologies represents one of the major pillars to address the most significant challenges humanity is going to face on earth in the upcoming decades - climate change, population growth, and resource depletion. The implementation of microfoods, i.e., foods formulated with ingredients from microbial cultivation, into the food supply chain has a huge potential to contribute towards energy-efficient and nutritious food manufacturing and represents a means to sustainably feed a growing world population. This review recapitulates and assesses the current state in the establishment and usage of gas fermenting bacteria as an innovative feedstock for protein production. In particular, we focus on the most promising representatives of this taxon: the hydrogen-oxidizing bacteria (hydrogenotrophs) and the methane-oxidizing bacteria (methanotrophs). These unicellular microorganisms can aerobically metabolize gaseous hydrogen and methane, respectively, to provide the required energy for building up cell material. A protein yield over 70% in the dry matter cell mass can be reached with no need for arable land and organic substrates making it a promising alternative to plant- and animal-based protein sources. We illuminate the holistic approach to incorporate protein extracts obtained from the cultivation of gas fermenting bacteria into microfoods. Herein, the fundamental properties of the bacteria, cultivation methods, downstream processing, and potential food applications are discussed. Moreover, this review covers existing and future challenges as well as sustainability aspects associated with the production of microbial protein through gas fermentation.
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Affiliation(s)
- Carlos Woern
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
| | - Lutz Grossmann
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
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8
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Chen C, Ma P, Jiang S, Bourouis I, Pang Z, Liu X, Wang P. Effect of Flaxseed Gum on the Textural, Rheological, and Tribological Properties of Acid-Induced Soy Protein Isolate Gels. Polymers (Basel) 2023; 15:2834. [PMID: 37447480 DOI: 10.3390/polym15132834] [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: 06/03/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
This study aimed to investigate the effects of incorporating different concentrations of flaxseed gum (FG) into acid-induced soy protein isolate (SPI) gels. The investigation focused on assessing the effects of FG on the textural, rheological, and tribological properties of the resultant SPI gels. The results showed that adding a small amount of FG (0.05%) to the SPI gel system increased the storage modulus (G') and enhanced gelation while improving textural properties including hardness, viscosity, elasticity, and adhesion. Moreover, these gels exhibited strong water-holding capacity, a desirable property in various food products. However, when the concentration was increased to 0.3%, the WHC of the gel decreased, as did the hardness and cohesiveness. The particle size of the gel also increased with increasing concentration. Tribological investigations revealed that at 0.05-0.2% FG addition, the coefficient of friction (μ) of the composite gel was decreased compared to the pure SPI gel. In the sliding speed range of 1-100 mm/s, the coefficient of friction gradually increased with increasing concentration. When the FG concentration was 0.05%, the μ of the gel system was the lowest. In summary, low concentration of FG (0.05%) was found to play an important role in improving the properties of SPI gel, including enhancing textural, rheological, and lubricating properties.
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Affiliation(s)
- Cunshe Chen
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing 100083, China
| | - Peipei Ma
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing 100083, China
| | - Siyuan Jiang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing 100083, China
| | - Imane Bourouis
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing 100083, China
| | - Zhihua Pang
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing 100083, China
| | - Xinqi Liu
- Key Laboratory of Geriatric Nutrition and Health, Ministry of Education, Beijing Technology and Business University, Beijing 100083, China
| | - Pengjie Wang
- Department of Nutrition and Health, China Agricultural University, Beijing 100083, China
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Stout AJ, Rittenberg ML, Shub M, Saad MK, Mirliani AB, Dolgin J, Kaplan DL. A Beefy-R culture medium: Replacing albumin with rapeseed protein isolates. Biomaterials 2023; 296:122092. [PMID: 36965281 PMCID: PMC10111969 DOI: 10.1016/j.biomaterials.2023.122092] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 03/03/2023] [Accepted: 03/12/2023] [Indexed: 03/27/2023]
Abstract
The development of cost-effective serum-free media is essential for the economic viability of cultured meat. A key challenge facing this goal is the high-cost of recombinant albumin which is necessary in many serum-free media formulations, including a recently developed serum-free medium for bovine satellite cell (BSC) culture termed Beefy-9. Here we alter Beefy-9 by replacing recombinant albumin with rapeseed protein isolate (RPI), a bulk-protein solution obtained from agricultural waste through alkali extraction (pH 12.5), isoelectric protein precipitation (pH 4.5), dissolution of physiologically soluble proteins (pH 7.2), and concentration of proteins through 3 kDa ultrafiltration. This new medium, termed Beefy-R, was then used to culture BSCs over four passages, during which cells grew with an average doubling time of 26.6 h, showing improved growth compared with Beefy-9. In Beefy-R, BSCs maintained cell phenotype and myogenicity. Together, these results offer an effective, low-cost, and sustainable alternative to albumin for serum-free culture of muscle stem cells, thereby addressing a key hurdle facing cultured meat production.
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Affiliation(s)
- Andrew J Stout
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA
| | - Miriam L Rittenberg
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA; Biological Engineering Department, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Michelle Shub
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA
| | - Michael K Saad
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA
| | - Addison B Mirliani
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA
| | - James Dolgin
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA
| | - David L Kaplan
- Biomedical Engineering Department, Tissue Engineering Resource Center, Tufts University, Medford, MA, USA.
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10
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Zhang L, Li Y, Sun X, Lai S, Chen F. The droplet breakup model and characteristics of pH-shifted peanut protein isolate-high methoxyl pectin stabilised emulsions under ultrasound. ULTRASONICS SONOCHEMISTRY 2023; 94:106340. [PMID: 36842215 PMCID: PMC9984890 DOI: 10.1016/j.ultsonch.2023.106340] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 01/28/2023] [Accepted: 02/17/2023] [Indexed: 05/27/2023]
Abstract
The effect of pH on the occurrence states of peanut protein isolate (PPI) and high methoxyl pectin (HMP), and droplet breakup model of the emulsions under ultrasound were studied. Particle size distribution and scanning electron microscopy results showed that PPI-HMP existed a soluble complex at pH 5.0, had no interaction at pH 7.0, and was co-soluble at pH 9.0. Droplet breakup model results revealed that the characteristics of emulsion stabilised by PPI-HMP treated at pH 5.0 was different from that at pH 7.0 and 9.0. The average diameter of the droplet well satisfied the model. According to rheological properties, interface tension, and microstructure, the formation mechanism and characteristics of emulsion stabilised by PPI-HMP treated at pH 5.0 was different from that at pH 7.0 and pH 9.0. The research provided a reference for constructing emulsions using pH-shifted PPI-HMP under ultrasound.
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Affiliation(s)
- Lifen Zhang
- College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Yingxi Li
- College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Xiaoyang Sun
- College of Food and Biological Engineering, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, Henan, China
| | - Shaojuan Lai
- College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, Henan, China
| | - Fusheng Chen
- College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, Henan, China.
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