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Shi W, Xie H, Ouyang K, Wang S, Xiong H, Woo MW, Zhao Q. The effect of rice protein-polyphenols covalent and non-covalent interactions on the structure, functionality and in vitro digestion properties of rice protein. Food Chem 2024; 450:139241. [PMID: 38636382 DOI: 10.1016/j.foodchem.2024.139241] [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: 02/04/2024] [Revised: 03/22/2024] [Accepted: 04/02/2024] [Indexed: 04/20/2024]
Abstract
The characteristics of the crosslinking between rice protein (RP) and ferulic acid (FA), gallic acid (GA), or tannin acid (TA) by covalent binding of Laccase and non-covalent binding were evaluated. The RP-polyphenol complexes greatly improved the functionality of RP. The covalent effect with higher polyphenol binding equivalence showed higher emulsion activity than the non-covalent effect. The solubility, and antioxidant activity of covalent binding were higher than that of non-covalent binding in the RP-FA group, but there was a contrasting behavior in the RP-GA group. The RP-FA was most soluble in conjugates, while the RP-GA had the highest solubility in mixtures. It was found that the covalent complexes were more stable in the intestinal tract. The content of polyphenols in the RP-TA group was rapidly increased at the later intestinal digestion, which indicated the high polyphenol-protective effect in this group. Meanwhile, the RP-TA group showed high reducing power but low digestibility.
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Affiliation(s)
- Wenyi Shi
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Hexiang Xie
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Kefan Ouyang
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Songyu Wang
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Meng Wai Woo
- Department of Chemical and Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1142, New Zealand
| | - Qiang Zhao
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China.
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2
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Shi W, Zhang T, Xie H, Xing B, Wen P, Ouyang K, Xiao F, Guo Q, Xiong H, Zhao Q. Characterization and in vitro digestibility of soybean tofu: Influence of the different kinds of coagulant. Food Chem 2024; 450:138984. [PMID: 38642532 DOI: 10.1016/j.foodchem.2024.138984] [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: 02/18/2024] [Accepted: 03/07/2024] [Indexed: 04/22/2024]
Abstract
This study explored the effect of diverse coagulants (glucono-δ-lactone (GDL), gypsum (GYP), microbial transglutaminase (MTGase), and white vinegar (WVG)) on microstructure, quality, and digestion properties of tofu. The four kinds of tofu were significantly different in their structure, composition, and digestibility. Tofu coagulated with MTGase had the highest springiness and cohesiveness while GDL tofu had the highest enthalpy (6.54 J/g). However, the WVG and GYP groups outperformed others in terms of thermodynamic, and digestion properties. The WVG group exhibited the highest nitrogen release (84.3%), water content, denaturation temperature, and the highest free-SH content but the lowest S-S content. Compared to WVG, the GYP group had the highest ash content, hardness, and chewiness. Results demonstrated that the tofu prepared by WVG and GYP show high digestibility. Meanwhile, the former has better thermal properties and the latter has better texture properties.
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Affiliation(s)
- Wenyi Shi
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Tingting Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Hexiang Xie
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Beibei Xing
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China; Xi'an Institute of Integrated Medical Information, Shaanxi 710000, China
| | - Pingwei Wen
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Kefan Ouyang
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Fangjie Xiao
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Qing Guo
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China
| | - Qiang Zhao
- State Key Laboratory of Food Science and Resources, Nanchang University, Jiangxi 330047, China.
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3
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Saberi F, Kouhsari F, Gasparre N. Green alternative for sodium metabisulfite substitution: Comparison of bacterial and fungal proteases effect in hard biscuit making. FOOD SCI TECHNOL INT 2024; 30:407-417. [PMID: 36683359 PMCID: PMC11155218 DOI: 10.1177/10820132231152279] [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: 07/08/2022] [Accepted: 01/05/2023] [Indexed: 01/24/2023]
Abstract
Sodium metabisulfite is one of the most employed reducing agents in hard biscuit making. The recent results about its adverse effects on human health have pushed us to look in new safer and greener directions. Two different proteases, from distinct strains (bacterial and fungal), were selected and their effects on the dough thermomechanical performances, texture, and structure of the hard biscuits were compared with those obtained from the sodium metabisulfite. Doughs treated with fungal protease showed higher stability during mixing and higher consistency throughout the heating stage. On the other hand, bacterial protease had the greatest weakening effect on protein with a marked reduction of starch gelatinization. Doughs processed with fungal enzymes reached similar values to those containing sodium metabisulfite. In terms of hardness, no significant (p < 0.05) differences were found between biscuits made with bacterial protease and sodium metabisulfite. Analysis of the volumetric characteristics highlighted that bacterial enzymes gave higher values of specific volume and surface area. Regarding the structure of the hard biscuits, sodium metabisulfite produced a more uniform structure with fewer and smaller pockets as compared with the samples treated with proteases.
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Affiliation(s)
- Farzad Saberi
- Department of Food Science and Technology, Science and Research Branch, Islamic Azad University, Tehran, Iran
- Department of Research and Development, Zarkam Company, Zar Industrial and Research Group, Hashtgerd, Iran
| | - Fatemeh Kouhsari
- Department of Research and Development, Zarkam Company, Zar Industrial and Research Group, Hashtgerd, Iran
- Department of Food Science, Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran
| | - Nicola Gasparre
- Department of Food and Human Nutritional Sciences, University of Manitoba, Winnipeg, Canada
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4
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Xiao F, Zhang L, Xie H, Ouyang K, Shi W, Xiong H, Zhao Q. The construction of Moringa oleifera seed protein emulsion: in vitro digestibility and delivery of β-carotene. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38856014 DOI: 10.1002/jsfa.13626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 06/11/2024]
Abstract
BACKGROUND β-Carotene (BC) is difficult to apply effectively in the food industry due to its low solubility and bioavailability. This work aimed to fabricate Moringa oleifera seed protein (MOSP) stabilized emulsions as delivery vehicles for BC and investigate the effect of aqueous phase conditions including pH and ionic strength on this system. RESULTS All MOSP samples were positively charged and the particle size of MOSP increased with the increase of pH. At pH 5.0 and 0.2 mol L-1 sodium chloride (NaCl), the MOSP emulsion demonstrated the highest stability coefficient and minimal creaming index, while exhibiting a lower release rate in vitro digestion. The rheological behavior of all MOSP emulsions within the frequency range of 0.1-10 Hz was dominated by viscoelasticity, forming an elastic network structure through dispersed droplets. Additionally, the MOSP emulsion loaded with BC prepared at pH 5.0 and 0.2 mol L-1 NaCl displayed enhanced ultraviolet light stability (52.31 ± 0.03% and 51.86 ± 0.05%) as well as thermal stability (72.39 ± 8.67% and 86.78 ± 10.69%). Furthermore, the BC in the emulsion at pH 7.0 exhibited favorable stability (65.14 ± 0.02%) and optimal bioaccessibility (40.30 ± 0.04%) in vitro digestion. CONCLUSION The results provided reference data for utilizing MOSP as a novel emulsifier and broadening the application of BC in the food industry. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Fangjie Xiao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
| | - Liqiong Zhang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
| | - Hexiang Xie
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
| | - Kefan Ouyang
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
| | - Wenyi Shi
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
| | - Qiang Zhao
- State Key Laboratory of Food Science and Resources, Nanchang University, Nanchang, China
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5
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Zheng Z, Lu H, Lin Y, Shui L, Jin M, Jiang Z. Exploring the effect of high pressure in the denaturation of casein micelles by in-situ SERS. Food Chem 2024; 442:138359. [PMID: 38219564 DOI: 10.1016/j.foodchem.2024.138359] [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: 07/15/2023] [Revised: 12/29/2023] [Accepted: 01/02/2024] [Indexed: 01/16/2024]
Abstract
To investigate the structural changes of casein in response to the pressurization process under varying pressure levels, this study carried out both ex-situ and in-situ high-pressure experiments. In the in-situ experiments, the surface-enhanced Raman scattering (SERS) technique was combined with a diamond anvil cell (DAC). The high-pressure experiments indicated that significant dissociation of casein occurred at 200 MPa. Over the range of 0-302 MPa, casein exhibited both dissociation and aggregation behaviors. However, casein tended towards aggregation at pressures of 302-486 MPa, with a further increase observed beyond 486 MPa.
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Affiliation(s)
- Zhenhong Zheng
- College of Food Science, South China Agricultural University, Guangzhou 510640, China
| | - Han Lu
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, China; School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
| | - Yingfeng Lin
- College of Food Science, South China Agricultural University, Guangzhou 510640, China
| | - Lingling Shui
- School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou 510006, China
| | - Mingliang Jin
- International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing 526238, China.
| | - Zhuo Jiang
- College of Food Science, South China Agricultural University, Guangzhou 510640, China.
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6
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Ma H, Yang Y, Zhao J, Huang X, Yang H, Zheng T, Fan G. Relationship between the baking quality of wheat (Triticum aestivum L.) and the protein composition and structure after shading. Food Chem 2024; 441:138392. [PMID: 38211475 DOI: 10.1016/j.foodchem.2024.138392] [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: 05/29/2023] [Revised: 12/04/2023] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
Although wheat (Triticum aestivum L.) grain protein content is increased by shade stress, the relationship between the baking quality of wheat flour and protein composition and structure remains unclear. Here, we investigated the effects of shade stress on wheat flour protein composition and structure. The contents of the flour protein, α/β-gliadins and disulfide and hydrogen bonds were significantly increased by shade stress. Glutenins, UPP%, and β-sheet contents also increased, whereas that of α-helices decreased. Spearman correlations revealed that the flour protein content, Glu:Gli ratio, and disulfide, hydrogen, and ionic bonds can predict the specific volume and number of crumb cells in bread, whereas α/β-gliadins content can predict the crumb cell wall thickness and diameter of bread. Under shade stress, variations in protein composition and structure help increase the specific volume and crumb cells number and decrease crumb cell wall thickness and diameter of bread, ultimately leading to improved baking quality.
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Affiliation(s)
- Hongliang Ma
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Yongheng Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Jiarong Zhao
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Xiulan Huang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Hongkun Yang
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China
| | - Ting Zheng
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China.
| | - Gaoqiong Fan
- State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China/ Key Laboratory of Crop Ecophysiology and Farming Systems in Southwest China, Ministry of Agriculture and Rural Affairs/Crop Ecophysiology and Cultivation Key Laboratory of Sichuan Province/ College of Agronomy, Sichuan Agricultural University, Chengdu 611130, China.
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7
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Kapoor R, Karabulut G, Mundada V, Feng H. Unraveling the potential of non-thermal ultrasonic contact drying for enhanced functional and structural attributes of pea protein isolates: A comparative study with spray and freeze-drying methods. Food Chem 2024; 439:138137. [PMID: 38061300 DOI: 10.1016/j.foodchem.2023.138137] [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: 08/05/2023] [Revised: 11/16/2023] [Accepted: 12/01/2023] [Indexed: 01/10/2024]
Abstract
The challenge of preserving the quality of thermal-sensitive polymeric materials specifically proteins during a thermal drying process has been a subject of ongoing concern. To address this issue, we investigated the use of ultrasound contact drying (USD) under non-thermal conditions to produce functionalized pea protein powders. The study extensively examined functional and physicochemical properties of pea protein isolate (PPI) in powder forms obtained through three drying methods: USD (30 °C), spray drying (SD), and freeze drying (FD). Additionally, physical attributes such as powder flowability and color, along with morphological properties, were thoroughly studied. The results indicated that the innovative USD method produced powders of comparable quality to FD and significantly outperformed SD. Notably, the USD-PPI exhibited higher solubility across all pH levels compared to both FD-PPI and SD-PPI. Moreover, the USD-PPI samples demonstrated improved emulsifying and foaming properties, a higher percentage of random coil form (56.2 %), increased gel strength, and the highest bulk and tapped densities. Furthermore, the USD-PPI displayed a unique surface morphology with visible porosity and lumpiness. Overall, this study confirms the effectiveness of non-thermal ultrasound contact drying technology in producing superior functionalized plant protein powders, showing its potential in the fields of chemistry and sustainable materials processing.
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Affiliation(s)
- Ragya Kapoor
- Department of Food Science and Human Nutrition, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Gulsah Karabulut
- Sakarya University, Faculty of Engineering, Department of Food Engineering, 54187 Sakarya, Turkey
| | - Vedant Mundada
- Department of Food Science and Human Nutrition, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Hao Feng
- Department of Food Science and Human Nutrition, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA; Department of Family and Consumer Sciences, North Carolina A&T State University, Greensboro, NC 27411, USA.
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8
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Pereira L, Cotas J, Gonçalves AM. Seaweed Proteins: A Step towards Sustainability? Nutrients 2024; 16:1123. [PMID: 38674814 PMCID: PMC11054349 DOI: 10.3390/nu16081123] [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: 03/14/2024] [Revised: 04/06/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
This review delves into the burgeoning field of seaweed proteins as promising alternative sources of protein. With global demand escalating and concerns over traditional protein sources' sustainability and ethics, seaweed emerges as a viable solution, offering a high protein content and minimal environmental impacts. Exploring the nutritional composition, extraction methods, functional properties, and potential health benefits of seaweed proteins, this review provides a comprehensive understanding. Seaweed contains essential amino acids, vitamins, minerals, and antioxidants. Its protein content ranges from 11% to 32% of dry weight, making it valuable for diverse dietary preferences, including vegetarian and vegan diets. Furthermore, this review underscores the sustainability and environmental advantages of seaweed protein production compared to traditional sources. Seaweed cultivation requires minimal resources, mitigating environmental issues like ocean acidification. As the review delves into specific seaweed types, extraction methodologies, and functional properties, it highlights the versatility of seaweed proteins in various food products, including plant-based meats, dairy alternatives, and nutritional supplements. Additionally, it discusses the potential health benefits associated with seaweed proteins, such as their unique amino acid profile and bioactive compounds. Overall, this review aims to provide insights into seaweed proteins' potential applications and their role in addressing global protein needs sustainably.
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Affiliation(s)
- Leonel Pereira
- Marine Resources, Conservation and Technology, Marine Algae Laboratory, Centre for Functional Ecology—Science for People & the Planet (CFE), Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal; (J.C.); (A.M.G.)
| | - João Cotas
- Marine Resources, Conservation and Technology, Marine Algae Laboratory, Centre for Functional Ecology—Science for People & the Planet (CFE), Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal; (J.C.); (A.M.G.)
| | - Ana Marta Gonçalves
- Marine Resources, Conservation and Technology, Marine Algae Laboratory, Centre for Functional Ecology—Science for People & the Planet (CFE), Department of Life Sciences, University of Coimbra, 3000-456 Coimbra, Portugal; (J.C.); (A.M.G.)
- Department of Biology and CESAM—Centro de Estudos do Ambiente e do Mar, University of Aveiro, 3810-193 Aveiro, Portugal
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9
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Sadaf N, Tuhanioglu A, Hettiarachchy N, Ubeyitogullari A. Effect of a novel drying method based on supercritical carbon dioxide on the physicochemical properties of sorghum proteins. RSC Adv 2024; 14:5851-5862. [PMID: 38362073 PMCID: PMC10867555 DOI: 10.1039/d3ra07426a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/05/2024] [Indexed: 02/17/2024] Open
Abstract
The aim of this research was to use supercritical carbon dioxide (SC-CO2) drying as a novel approach for generating sorghum protein concentrates/isolates with enhanced functional properties. Sorghum protein extracts were obtained from white whole-grain sorghum flour and were dried by two methods, namely, freeze-drying and SC-CO2 drying. The collected proteins were characterized for their morphology, color, crystallinity, surface hydrophobicity, emulsifying activity index (EAI), creaming index (CI), foaming capacity (FC), foaming stability (FS), protein solubility, chemical interactions, and viscosity. The SC-CO2-dried proteins exhibited higher porosity compared to the freeze-dried ones with smaller particle sizes (∼5.1 vs. 0.4 μm, respectively). The XRD patterns indicated that the SC-CO2-dried proteins had a lower crystallinity than the freeze-dried proteins. However, the surface hydrophobicities of the freeze-dried and SC-CO2-dried proteins were similar. The EAI results showed that the emulsifying activity of freeze-dried protein powder (40.6) was better than that of SC-CO2-dried protein powder (29.8). Nevertheless, the solubility of SC-CO2-dried proteins was higher than that of freeze-dried proteins in most of the pHs investigated. Overall, the proposed SC-CO2 drying method has the potential to generate porous protein powders with improved solubility that can be used in developing functional foods.
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Affiliation(s)
- Nafisa Sadaf
- Department of Food Science, University of Arkansas 2650 Young Ave., Room N205 Fayetteville AR 72704 USA +1 479-575-3183
| | - Arda Tuhanioglu
- Department of Food Science, University of Arkansas 2650 Young Ave., Room N205 Fayetteville AR 72704 USA +1 479-575-3183
| | - Navam Hettiarachchy
- Department of Food Science, University of Arkansas 2650 Young Ave., Room N205 Fayetteville AR 72704 USA +1 479-575-3183
| | - Ali Ubeyitogullari
- Department of Food Science, University of Arkansas 2650 Young Ave., Room N205 Fayetteville AR 72704 USA +1 479-575-3183
- Department of Biological and Agricultural Engineering, University of Arkansas Fayetteville AR 72701 USA
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10
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Dong X, Woo MW, Quek SY. The physicochemical properties, functionality, and digestibility of hempseed protein isolate as impacted by spray drying and freeze drying. Food Chem 2024; 433:137310. [PMID: 37683487 DOI: 10.1016/j.foodchem.2023.137310] [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: 06/29/2023] [Revised: 08/15/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023]
Abstract
Hempseed protein has gained increasing attention for its sustainability and nourishment. This study aimed to investigate the effects of spray drying and freeze drying on the physicochemical properties, functionality, and digestibility of hempseed protein isolate (HPI). Compared to undried-HPI, both drying techniques altered physicochemical and structural properties. Particularly, protein denaturation temperature increased in freeze-dried HPI (FD-HPI) and spray-dried HPI (SD-HPI) samples (∼90 °C) than in undried-HPI (82.5 °C). Lysine content decreased from 38.26 mg/g in undried-HPI to 35.03 and 33.18 mg/g in FD-HPI and SD-HPI, respectively. Results revealed the loss of 26 and 17 kDa bands after drying. Notably, FD-HPI exhibited higher emulsifying stability and oil-holding capacity than SD-HPI. While both FD-HPI and SD-HPI had higher digestibility than undried-HPI, a 50% reduction in the liberation of free α-amino groups after digestion was found. This study provided information regarding changes in HPI after drying, offering insights for HPI production and application in the food industry.
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Affiliation(s)
- Xuan Dong
- Food Science, School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand.
| | - Meng Wai Woo
- Department of Chemical and Materials Engineering, Faculty of Engineering, The University of Auckland, Auckland 1142, New Zealand.
| | - Siew Young Quek
- Food Science, School of Chemical Sciences, The University of Auckland, Auckland 1010, New Zealand; Riddet Institute, Centre of Research Excellence for Food Research, Palmerston North 4474, New Zealand.
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11
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Burghardt K, Craven T, Sardar NA, Pearce JM. Towards Sustainable Protein Sources: The Thermal and Rheological Properties of Alternative Proteins. Foods 2024; 13:448. [PMID: 38338583 PMCID: PMC10855059 DOI: 10.3390/foods13030448] [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: 01/04/2024] [Revised: 01/26/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Reducing meat consumption reduces carbon emissions and other environmental harms. Unfortunately, commercial plant-based meat substitutes have not seen widespread adoption. In order to enable more flexible processing methods, this paper analyzes the characteristics of commercially available spirulina, soy, pea, and brown rice protein isolates to provide data for nonmeat protein processing that can lead to cost reductions. The thermal and rheological properties, as well as viscosity, density, and particle size distribution, were analyzed for further study into alternative protein-based food processing. The differential scanning calorimetry analysis produced dry amorphous-shaped curves and paste curves with a more distinct endothermic peak. The extracted linear temperature ranges for processing within food production were 70-90 °C for spirulina, 87-116 °C for soy protein, 67-77 °C for pea protein, and 87-97 °C for brown rice protein. The viscosity analysis determined that each protein material was shear-thinning and that viscosity increased with decreased water concentration, with rice being an exception to the latter trend. The obtained viscosity range for spirulina was 15,100-78,000 cP, 3200-80,000 cP for soy protein, 1400-32,700 cP for pea protein, and 600-3500 cP for brown rice protein. The results indicate that extrusion is a viable method for the further processing of protein isolates, as this technique has a large temperature operating range and variable screw speed. The data provided here can be used to make single or multi-component protein substitutes.
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Affiliation(s)
- Kaitlyn Burghardt
- Department of Chemical & Biochemical Engineering, Western University, London, ON N6A 5B9, Canada
| | - Tierney Craven
- Department of Chemical & Biochemical Engineering, Western University, London, ON N6A 5B9, Canada
| | | | - Joshua M Pearce
- Department of Electrical & Computer Engineering and Ivey Business School, Western University, London, ON N6A 5B9, Canada
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12
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Shi W, Xie H, Ouyang K, Shi Q, Xiong H, Zhao Q. Enhancing the solubility and emulsion properties of rice protein by deamidation of citric acid-based natural deep eutectic solvents. Food Res Int 2024; 175:113762. [PMID: 38128999 DOI: 10.1016/j.foodres.2023.113762] [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: 07/10/2023] [Revised: 11/12/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
The characteristics of rice protein deamidated (DRP) by choline chloride-citric acid and glucose-citric acid natural deep eutectic solvents (C-C NADES, G-C NADES) at different dilutions were investigated. Compared with the effect of citric acid deamidation on the structural and functional properties of the protein, the DRP from the NADESs led to remarkable differences in the degree of hydrolysis (DH), SDS-PAGE, morphology, surface hydrophobicity, average particle size, intrinsic fluorescence, amino acid compositions, and emulsion activity. The results of SDS-PAGE, DH, and SEM showed the NADESs reduced the occurrence of uncontrolled hydrolysis of protein during acid deamidation. DRP from C-C and G-C NADESs was found to significantly improve solubility. DRP prepared by C-C NADES showed a more than 40 % solubility over a wide pH range associated with its higher emulsifying activity (37.62-44.19 m2/g) and emulsifying stability (73.76-86.9 min), as well as a better deamidation effect while lower DH. Thus, these findings showed that acid-based NADESs had great potential as a deamidation solvent to expand the application of protein.
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Affiliation(s)
- Wenyi Shi
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Hexiang Xie
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Kefan Ouyang
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Qianqian Shi
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Qiang Zhao
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China.
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13
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Kapoor R, Karabulut G, Mundada V, Feng H. Non-thermal ultrasonic contact drying of pea protein isolate suspensions: Effects on physicochemical and functional properties. Int J Biol Macromol 2023; 253:126816. [PMID: 37690656 DOI: 10.1016/j.ijbiomac.2023.126816] [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: 04/28/2023] [Revised: 08/21/2023] [Accepted: 09/07/2023] [Indexed: 09/12/2023]
Abstract
Pea protein isolate (PPI) is a popular plant-based ingredient, typically produced through alkaline-isoelectric precipitation and thermal drying. However, high temperatures and long drying times encountered in thermal drying can denature PPI and cause loss of functionality. This study investigated the use of an innovative ultrasonic dryer (US-D) at 30 °C for drying PPI suspensions, compared to conventional hot air drying (HA-D) at 60 °C. US-D led to an increase in the drying rate and correspondingly reduced the drying time by 55 %, when compared to HA-D. The average effective moisture diffusivity in the US-D process was 325 % higher than that in the HA-D process. The resulting PPI exhibited higher solubility, emulsification, and foaming properties than HA-D PPI, with a unique surface morphology and higher surface area. This study demonstrated that drying with acoustic energy is a promising approach for producing dried plant protein ingredients with improved functional properties, reduced processing time, and increased production efficiency.
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Affiliation(s)
- Ragya Kapoor
- Department of Food Science and Human Nutrition, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Gulsah Karabulut
- Sakarya University, Faculty of Engineering, Department of Food Engineering, 54187, Sakarya, Turkiye
| | - Vedant Mundada
- Department of Food Science and Human Nutrition, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA
| | - Hao Feng
- Department of Food Science and Human Nutrition, University of Illinois at Urbana Champaign, Urbana, IL 61801, USA; Department of Family and Consumer Sciences, North Carolina A&T State University, Greensboro, NC 27411, USA.
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14
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Ahmadi E, Vasiljevic T, Huppertz T. Influence of pH on Heat-Induced Changes in Skim Milk Containing Various Levels of Micellar Calcium Phosphate. Molecules 2023; 28:6847. [PMID: 37836690 PMCID: PMC10574568 DOI: 10.3390/molecules28196847] [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: 09/04/2023] [Revised: 09/23/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023] Open
Abstract
The present study investigated the effect of micellar calcium phosphate (MCP) content and pH of skim milk on heat-induced changes in skim milk. Four MCP-adjusted samples, ranging from 67 to 113% of the original MCP content, were heated (90 °C for 10 min) at different pH values (6.3, 6.6, 6.9, and 7.2), followed by determining changes in particle size, turbidity, protein distribution, and structure. The results demonstrate a strong effect of MCP level and pH on heat-induced changes in milk, with the MCP67 samples revealing the greatest thermal stability. Specifically, decreasing MCP content by 33% (MCP67) led to a smaller increase in non-sedimentable κ-casein and a lower decrease in αs2-casein concentrations after heating compared to other samples. Lower MCP content resulted in a moderate rise in the average particle size and turbidity, along with lower loading of β-turn structural component after heating at low pH (pH 6.3). Notably, MCP113 exhibited instability upon heating, with increased particle size, turbidity, and a significant decrease in non-sedimentable αs2-casein concentration, along with a slight increase in non-sedimentable κ-casein concentration. The FTIR results also revealed higher loading of intermolecular β-sheet, β-turn, and random coil structures, as well as lower loading of α-helix and β-sheet structures in MCP-enhanced skim milk samples. This suggests significant changes in the secondary structure of milk protein and greater formation of larger aggregates.
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Affiliation(s)
- Elaheh Ahmadi
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Melbourne, VIC 8001, Australia; (E.A.); (T.V.)
| | - Todor Vasiljevic
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Melbourne, VIC 8001, Australia; (E.A.); (T.V.)
| | - Thom Huppertz
- Advanced Food Systems Research Unit, Institute for Sustainable Industries and Liveable Cities, College of Health and Biomedicine, Victoria University, Melbourne, VIC 8001, Australia; (E.A.); (T.V.)
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands
- Food Quality and Design Group, Wageningen University and Research, 6708 WG Wageningen, The Netherlands
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15
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Wang L, Zhang Y, Li R, Xiang D. L-lysine moderates thermal aggregation of coconut proteins induced by thermal treatment. Sci Rep 2023; 13:13310. [PMID: 37587151 PMCID: PMC10432461 DOI: 10.1038/s41598-023-38758-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/14/2023] [Indexed: 08/18/2023] Open
Abstract
This work attempts to investigate the inhibitory effect of L-lysine (Lys) on the thermal aggregation of coconut protein (CP). The results showed that under neutral conditions (pH = 7), temperature reduced the solubility and enhanced the thermally induced gel formation of CP. In addition, Lys reduced the fluorescence properties, particle size and increased the turbidity of CP, which had an inhibitory effect on heat induced gels. The results indicate that Lys plays an important role in inhibiting protein thermal aggregation by interacting with CP to create steric hindrance and increase protein electrostatic repulsion.
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Affiliation(s)
- Liqiang Wang
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China
| | - Youbang Zhang
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China
| | - Run Li
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China
| | - Dong Xiang
- School of Food Science and Engineering, Hainan University, No. 58 Renmin Avenue, Haikou, 570228, China.
- Key Laboratory of Food Nutrition and Functional Food of Hainan Province, No. 58 Renmin Avenue, Haikou, 570228, China.
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16
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Ashkar F, Wu J. Effects of Food Factors and Processing on Protein Digestibility and Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37267055 DOI: 10.1021/acs.jafc.3c00442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Protein is an essential macronutrient. The nutritional needs of dietary proteins are met by digestion and absorption in the small intestine. Indigestible proteins are further metabolized in the gut and produce metabolites via protein fermentation. Thus, protein indigestibility exerts a wide range of effects on gut microbiota composition and function. This review aims to discuss protein digestibility, the effects of food factors, such as protein sources, intake level, and amino acid composition, and making meat analogues. Besides, it provides an inventory of antinutritional factors and processing techniques that influence protein digestibility and, consequently, the diversity and composition of intestinal microbiota. Future studies are warranted to understand the implication of plant-based analogues on protein digestibility and gut microbiota and to elucidate the mechanisms concerning protein digestibility to host gut microbiota using various omics techniques.
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Affiliation(s)
- Fatemeh Ashkar
- Department of Agricultural Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
| | - Jianping Wu
- Department of Agricultural Food and Nutritional Science, University of Alberta, Edmonton, Alberta T6G 2R3, Canada
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17
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Nie HN, Dong H, Chen YL, Hao MM, Chen JN, Tang ZC, Liu QZ, Li JK, Xu XB, Xue YL. Effects of spray drying and freeze drying on the structure and emulsifying properties of yam soluble protein: A study by experiment and molecular dynamics simulation. Food Chem 2023; 409:135238. [PMID: 36584531 DOI: 10.1016/j.foodchem.2022.135238] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
This study focused on the effects of freeze drying (FD) and sprays drying (SD) on the structure and emulsifying properties of yam soluble protein (YSP). The results showed that the surface hydrophobicity (Ho) value, free sulfhydryl group (SH) content, turns content, denaturation temperature and enthalpy value of spray-dried YSP (SD-YSP) were higher than freeze-dried YSP (FD-YSP), but the apparent hydrodynamic diameter (Dh) value of SD-YSP was smaller. The smaller Dh, higher Ho and free SH led to higher percentage of adsorbed proteins and stronger binding between protein and oil droplet in emulsions. Thus, the emulsifying properties of SD-YSP were better, and the SD-YSP-stabilized emulsion had better dynamical rheological properties. Molecular dynamics (MD) simulations suggested that some intramolecular disulfide bonds and hydrogen bonds of dioscorin were broken, and some helices transformed into turns during the SD process. These structural changes resulted in better thermal stability and emulsification properties of SD-YSP.
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Affiliation(s)
- Hao-Nan Nie
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Hui Dong
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Yun-Long Chen
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Miao-Miao Hao
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Jia-Nan Chen
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | - Zi-Cheng Tang
- College of Light Industry, Liaoning University, Shenyang 110036, China
| | | | - Jiang-Kuo Li
- Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, National Engineering and Technology Research Center for Preservation of Agricultural Products, Tianjin 300384, China
| | - Xiang-Bin Xu
- College of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - You-Lin Xue
- College of Light Industry, Liaoning University, Shenyang 110036, China.
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18
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Rahim FNA, Ibadullah WZW, Saari N, Brishti FH, Mustapha NA, Ahmad N, Arulrajah B. The effect of alkaline extraction and drying techniques on the physicochemical, structural properties and functionality of rice bran protein concentrates. Int J Biol Macromol 2023:124908. [PMID: 37217045 DOI: 10.1016/j.ijbiomac.2023.124908] [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: 01/17/2023] [Revised: 04/25/2023] [Accepted: 05/13/2023] [Indexed: 05/24/2023]
Abstract
Rice bran protein concentrates (RBPC) were extracted using mild alkaline solvents (pH: 8, 9, 10). The physicochemical, thermal, functional, and structural aspects of freeze-drying (FD) and spray-drying (SD) were compared. FD and SD of RBPC had porous and grooved surfaces, with FD having non-collapsed plates and SD being spherical. Alkaline extraction increases FD's protein concentration and browning, whereas SD inhibits browning. According to amino acid profiling, RBPC-FD9's extraction optimizes and preserves amino acids. A tremendous particle size difference was prominent in FD, thermally stable at a minimal maximum of 92 °C. Increased pH extraction gives FD greater exposal surface hydrophobicity and positively relates to denaturation enthalpy. Mild pH extraction and drying significantly impacted solubility, improved emulsion properties, and foaming properties of RBPC as observed in acidic, neutral, and alkaline environments. RBPC-FD9 and RBPC-SD10 extracts exhibit outstanding foaming and emulsion activity in all pH conditions, respectively. Appropriate drying selection, RBPC-FD or SD potentially employed as foaming/emulsifier agent or meat analog.
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Affiliation(s)
- Farah Nadiah Abd Rahim
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Wan Zunairah Wan Ibadullah
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Nazamid Saari
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Fatema Hossain Brishti
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Nor Afizah Mustapha
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
| | - Noorlaila Ahmad
- Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Brisha Arulrajah
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia
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19
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Yaputri BP, Bu F, Ismail BP. Salt Solubilization Coupled with Membrane Filtration-Impact on the Structure/Function of Chickpea Compared to Pea Protein. Foods 2023; 12:foods12081694. [PMID: 37107489 PMCID: PMC10137475 DOI: 10.3390/foods12081694] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
The demand for pulse proteins as alternatives to soy protein has been steeply increasing over the past decade. However, the relatively inferior functionality compared to soy protein is hindering the expanded use of pulse proteins, namely pea and chickpea protein, in various applications. Harsh extraction and processing conditions adversely impact the functional performance of pea and chickpea protein. Therefore, a mild protein extraction method involving salt extraction coupled with ultrafiltration (SE-UF) was evaluated for the production of chickpea protein isolate (ChPI). The produced ChPI was compared to pea protein isolate (PPI) produced following the same extraction method in terms of functionality and feasibility of scaling. Scaled-up (SU) ChPI and PPI were produced under industrially relevant settings and evaluated in comparison to commercial pea, soy, and chickpea protein ingredients. Controlled scaled-up production of the isolates resulted in mild changes in protein structural characteristics and comparable or improved functional properties. Partial denaturation, modest polymerization, and increased surface hydrophobicity were observed in SU ChPI and PPI compared to the benchtop counterparts. The unique structural characteristics of SU ChPI, including its ratio of surface hydrophobicity and charge, contributed to superior solubility at both a neutral and acidic pH compared to both commercial soy protein and pea protein isolates (cSPI and cPPI) and significantly outperformed cPPI in terms of gel strength. These findings demonstrated both the promising scalability of SE-UF and the potential of ChPI as a functional plant protein ingredient.
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Affiliation(s)
- Brigitta P Yaputri
- Food Science and Nutrition Department, University of Minnesota, 1334 Eckles Ave, Saint Paul, MN 55108, USA
| | - Fan Bu
- Food Science and Nutrition Department, University of Minnesota, 1334 Eckles Ave, Saint Paul, MN 55108, USA
| | - Baraem P Ismail
- Food Science and Nutrition Department, University of Minnesota, 1334 Eckles Ave, Saint Paul, MN 55108, USA
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20
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Dhiman A, Thakur K, Parmar V, Sharma S, Sharma R, Kaur G, Singh B, Suhag R. New insights into tailoring physicochemical and techno-functional properties of plant proteins using conventional and emerging technologies. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2023. [DOI: 10.1007/s11694-023-01919-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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21
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Junsara K, Yupanqui CT, Kawee-ai A, Samakradhamrongthai RS. Fortification of Crude Protein Extract from Sung Yod and Hom Rajinee Rice Brans in the Development of Functional Jelly Products. Foods 2023; 12:foods12061138. [PMID: 36981064 PMCID: PMC10048085 DOI: 10.3390/foods12061138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 02/18/2023] [Accepted: 03/03/2023] [Indexed: 03/11/2023] Open
Abstract
Rice bran protein (RBP) has shown good nutritional and biological values. The present study aimed to determine the functional properties of rice bran crude protein (RBCP) and apply RBCP to a rice jelly recipe to improve the jelly quality and make it an acceptable product for consumers. The design used in the jelly formulation was a central composite design. The freeze-dried crude protein of Sung Yod (SY; 0.00–0.50%) and Hom Rajinee (HR; 0.00–0.50%) rice brans were applied to the rice jelly recipe. The crude protein extract significantly influenced the physicochemical, sensory, and angiotensin I converting enzyme (ACE)-inhibitory activity of the developed jellies (p < 0.05). The optimized jelly contained 0.11% SY and 0.50% HR crude protein extract. The rice jelly fortified with lyophilized RBCP presented a high content of bioactive compounds (phenolic and flavonoids) with antioxidant activity and ACE-inhibitory activity. Therefore, the crude protein extract of rice brans is a potential raw material that can be used in jelly products as a cheap material to improve the jelly’s nutritional quality without affecting consumer acceptability. The outcome of the present investigation confirms that rice bran extracts may have the potential to be further exploited as ingredients in foods.
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Affiliation(s)
- Kanthaporn Junsara
- Functional Food and Nutrition Program, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Thailand
| | - Chutha Takahashi Yupanqui
- Functional Food and Nutrition Program, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Thailand
- Center of Excellence in Functional Foods and Gastronomy, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Thailand
| | - Arthitaya Kawee-ai
- Department of Cannabis and Medicinal Plants for Local Development, Graduate School, Payap University, Chiang Mai 50000, Thailand
- Cluster of High Value Products from Thai Rice and Plant for Health, Chiang Mai University, Chiang Mai 50100, Thailand
- Cluster of Innovative Food and Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
| | - Rajnibhas Sukeaw Samakradhamrongthai
- Center of Excellence in Functional Foods and Gastronomy, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai 90110, Thailand
- Cluster of High Value Products from Thai Rice and Plant for Health, Chiang Mai University, Chiang Mai 50100, Thailand
- Cluster of Innovative Food and Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- Division of Product Development Technology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai 50100, Thailand
- Correspondence: ; Tel.: +66-5394-8228
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22
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Physicochemical, Structural Structural and Functional Properties of Non-Waxy and Waxy Proso Millet Protein. Foods 2023; 12:foods12051116. [PMID: 36900633 PMCID: PMC10000721 DOI: 10.3390/foods12051116] [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: 01/06/2023] [Revised: 02/17/2023] [Accepted: 02/22/2023] [Indexed: 03/09/2023] Open
Abstract
The physicochemical, structural and functional properties of proso millet protein from waxy and non-waxy proso millet were investigated. The secondary structures of proso millet proteins consisted mainly of a β-sheet and ɑ-helix. The two diffraction peaks of proso millet protein appeared at around 9° and 20°. The solubility of non-waxy proso millet protein was higher than that of waxy proso millet protein at different pH values. Non-waxy proso millet protein had a relatively better emulsion stability index (ESI), whereas waxy proso millet protein had a better emulsification activity index (EAI). Non-waxy proso millet protein showed a higher maximum denaturation temperature (Td) and enthalpy change (ΔH) than its waxy counterpart, indicating a more ordered conformation. Waxy proso millet exhibited higher surface hydrophobicity and oil absorption capacity (OAC) than non-waxy proso millet, suggesting that the former may have potential applications as a functional ingredient in the food industry. There was no significant difference in the intrinsic fluorescence spectra of different waxy and non-waxy proso millet proteins at pH 7.0.
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23
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Peng Y, Zhao D, Li M, Wen X, Ni Y. Production and functional characteristics of low-sodium high-potassium soy protein for the development of healthy soy-based foods. Int J Biol Macromol 2023; 226:1332-1340. [PMID: 36442573 DOI: 10.1016/j.ijbiomac.2022.11.244] [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: 10/11/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/26/2022]
Abstract
The plant-based products that are mainly produced by soy protein isolate (SPI) present significantly higher sodium (Na) content than the corresponding animal-based products. Accordingly, the production of low-sodium soy protein ingredients becomes a challenging task. For this purpose, alternative soy fractionation processes were investigated, and the use of KOH as the replacement for NaOH has been established to produce soy protein fractions (SPFs). The obtained MF-K contained 0.2 mg sodium and 24 mg potassium per 100 g of fraction, which was 3 % of the sodium content in the SPI, and the potassium content was over 10 times higher than SPI. Besides, using KOH increased the protein content of SPFs by almost 7 %, as well as their water holding capacity (WHC) and thermal stability; however, the yields of SPFs were dropped by around 4-8 % while the protein solubility of SPFs was reduced companied with the application of KOH. The fractionation processes mainly affected the protein composition, powder morphology, and viscosity of SPFs, while the sodium and potassium content showed limited impacts on the variations. Overall, the application of KOH during different fractionation procedures provided the possibility to produce low-sodium high‑potassium soy protein ingredients for the development of healthy soy-based foods.
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Affiliation(s)
- Yu Peng
- College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Beijing 100083, China
| | - Dandan Zhao
- Hebei University of Science and Technology, No. 26 Yuxiang Street, Shijiazhuang, Hebei, China
| | - Mo Li
- College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Beijing 100083, China
| | - Xin Wen
- College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Beijing 100083, China.
| | - Yuanying Ni
- College of Food Science and Nutritional Engineering, China Agricultural University, No. 17 Qinghua East Road, Beijing 100083, China
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24
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Song Y, Huang D, Guo W, Gao Y, Xue F, Xiong X, Li C. Physicochemical and Structural Properties of Gluten-Konjac glucomannan Conjugates Prepared by Maillard Reaction. Polymers (Basel) 2023; 15:polym15030631. [PMID: 36771931 PMCID: PMC9921320 DOI: 10.3390/polym15030631] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/19/2023] [Accepted: 01/23/2023] [Indexed: 01/28/2023] Open
Abstract
Gluten (Glu) is important to wheat products by forming a three-dimensional matrix. This study aimed to investigate the physicochemical and structural properties of gluten after conjugation with konjac glucomannan (KGM) through the Maillard reaction. The study revealed that the degree of graft increased with the prolonged reaction time. The Glu-KGM conjugates were possessed of increased β-sheet but decreased α-helix and β-turn, as well as unfolding and loose tertiary structures as the reaction proceeded. Among three different proportions, the Glu-KGM 1:1 conjugate was proved to have the most excellent foaming and emulsifying properties, and could form more rigid and firm gelation structures, which could be related to the decreased particle size and increased zeta potential of the conjugate. Overall, the physicochemical and structural properties of gluten were significantly related to the KGM ratios as well as the reaction period.
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Affiliation(s)
- Yukang Song
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Danping Huang
- Nanjing Station of National Light Industry Food Quality Supervision and Inspection, Nanjing 211816, China
| | - Wanchun Guo
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Yiqing Gao
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Feng Xue
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing 210023, China
| | - Xiaohui Xiong
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
| | - Chen Li
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211816, China
- Correspondence: ; Tel.: +86-138-13362715
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25
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Xie H, Zhang L, Chen Q, Hu J, Zhang P, Xiong H, Zhao Q. Combined effects of drying methods and limited enzymatic hydrolysis on the physicochemical and antioxidant properties of rice protein hydrolysates. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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26
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Yang J, Mocking-Bode HC, van den Hoek IA, Theunissen M, Voudouris P, Meinders MB, Sagis LM. The impact of heating and freeze or spray drying on the interface and foam stabilising properties of pea protein extracts: Explained by aggregation and protein composition. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107913] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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27
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Wang S, Niu L, Zhou B, Peng Y, Yang X, Shen Y, Li S. Drying methods affect physicochemical and functional characteristics of Clanis Bilineata Tingtauica Mell protein. Front Nutr 2022; 9:1053422. [DOI: 10.3389/fnut.2022.1053422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 10/24/2022] [Indexed: 11/10/2022] Open
Abstract
Clanis Bilineata Tingtauica Mell Protein (CBTMP) was a kind of natural full-price protein which has a bright application prospect in the food industry. Since the functional properties of protein can be significantly affected by drying method, this study aims to explore the effect of different drying methods, namely freeze drying (FD), vacuum drying (VD),and hot-air drying (HD) on the structure and functional properties of CBTMP. The results showed that the degree of oxidation of CBTMP was found to be in the following order: HD > VD > FD. Functional characteristics revealed that the CBTMP prepared by VD had relatively high foaming ability (150.24 ± 5.34°C) among three drying methods. However, the stability of emulsion and rheological properties prepared by FD was superior to other samples. Differential scanning calorimeter (DSC) showed CBTMP made by HD had the relatively good thermal stability (Tp = 91.49 ± 0.19 °C), followed by VD and FD. Digestive properties reflected that heating treatment could significantly increase its degree of hydrolysis in vitro. To sum up, the research could provide experimental guidance and theoretical support for the preparation method and utilization of CBTMP.
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Lu Z, Lee PR, Yang H. Chickpea flour and soy protein isolate interacted with κ-carrageenan via electrostatic interactions to form egg omelets analogue. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107691] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Li N, Wang Y, Gan Y, Wang S, Wang Z, Zhang C, Wang Z. Physicochemical and functional properties of protein isolate recovered from Rana chensinensis ovum based on different drying techniques. Food Chem 2022; 396:133632. [PMID: 35820285 DOI: 10.1016/j.foodchem.2022.133632] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 06/20/2022] [Accepted: 07/02/2022] [Indexed: 11/04/2022]
Abstract
This work was dedicated to evaluating the drying methods (freeze drying, spray drying, and vacuum drying) of food Rana chensinensis ovum protein isolate (RCOPI) based on comparison of the physicochemical and functional properties. The characterization and evaluation were conducted using scanning electron microscopy, surface hydrophobicity, SDS-PAGE, amino acid composition and nutritional parameters, Fourier transform infrared spectroscopy, and autofluorescence spectroscopy. The results showed the protein structure and conformation of RCOPI were greatly affected by drying techniques, leading to different physicochemical and functional properties. RCOPI possessed four main subunit bands distributed around 110, 90, 35 and 32 kDa. Seven essential amino acids were detected, accounting for 43.27-43.65% of total amino acids. Freeze drying RCOPI (FD-RCOPI) showed superior functional features, including solubility, water holding capacity, oil holding capacity, stabilization of Pickering emulsion and antioxidant capacity. FD-RCOPI exhibited applicability for the manufacture of viscous foods, bakery products and Pickering emulsions.
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Affiliation(s)
- Nan Li
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Yongsheng Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Yuanshuai Gan
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Shihan Wang
- College of Chinese Medicinal Materials, Jilin Agricultural University, Changchun 130118, China
| | - Zhongyao Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Changli Zhang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China
| | - Zhihan Wang
- School of Pharmaceutical Sciences, Jilin University, Changchun 130021, China.
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Chen Q, Chen X, Li S, Ning F, Xiong H, Zhao Q. Preparation, characterization, and in vitro antioxidant activities of natural selenium-enriched peanut protein fractions. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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31
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Wu J, Xu S, Yan X, Zhang X, Xu X, Li Q, Ye J, Liu C. Effect of Homogenization Modified Rice Protein on the Pasting Properties of Rice Starch. Foods 2022; 11:foods11111601. [PMID: 35681350 PMCID: PMC9180377 DOI: 10.3390/foods11111601] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 05/21/2022] [Accepted: 05/27/2022] [Indexed: 01/21/2023] Open
Abstract
Modification of plant-based protein for promoting wide applications is of interest to the food industry. Rice protein from rice residues was modified by homogenization, and its effect on pasting properties (including gelatinization and rheology) of rice starch was investigated. The results showed that homogenization could significantly decrease the particle size of rice protein and increase their water holding capacity without changing their band distribution in SDS-PAGE. With the addition of protein/homogenized proteins into rice starch decreased peak viscosity of paste. The homogenized proteins decreased breakdown and setback value when compared with that of original protein, indicating homogenized protein might have potential applications for increasing the stability and inhibiting short-term retrogradation of starch paste. The addition of protein/homogenized proteins resulted in a reduction in the viscoelasticity behavior of starch paste. These results indicate that homogenization would create a solution to alter the physicochemical properties of plant proteins, and the homogenized proteins may be a potential candidate for development of protein-rich starchy products.
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Affiliation(s)
- Jianyong Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (J.W.); (S.X.); (X.Y.); (X.Z.); (C.L.)
| | - Shunqian Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (J.W.); (S.X.); (X.Y.); (X.Z.); (C.L.)
| | - Xiaoyan Yan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (J.W.); (S.X.); (X.Y.); (X.Z.); (C.L.)
| | - Xuan Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (J.W.); (S.X.); (X.Y.); (X.Z.); (C.L.)
| | - Xingfeng Xu
- Department of Food Science and Engineering, Qingdao Agricultural University, Qingdao 266109, China;
| | - Qian Li
- Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, China;
| | - Jiangping Ye
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (J.W.); (S.X.); (X.Y.); (X.Z.); (C.L.)
- Correspondence:
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; (J.W.); (S.X.); (X.Y.); (X.Z.); (C.L.)
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32
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Dai H, Zhan F, Chen Y, Shen Q, Geng F, Zhang Z, Li B. Improvement of the solubility and emulsification of rice protein isolate by the
pH
shift treatment. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15834] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongmin Dai
- College of Food Science and Technology Huazhong Agricultural University Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University) Ministry of Education Wuhan 430070 China
| | - Fuchao Zhan
- College of Food Science and Technology Huazhong Agricultural University Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University) Ministry of Education Wuhan 430070 China
| | - Yijie Chen
- College of Food Science and Technology Huazhong Agricultural University Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University) Ministry of Education Wuhan 430070 China
| | - Qian Shen
- College of Food Science and Technology Huazhong Agricultural University Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University) Ministry of Education Wuhan 430070 China
| | - Fang Geng
- College of Food and Biological Engineering Chengdu University No. 2025 Chengluo Avenue Chengdu 610106 China
| | - Ziyang Zhang
- College of Sanquan Xinxiang Medical University Henan 453003 China
| | - Bin Li
- College of Food Science and Technology Huazhong Agricultural University Wuhan 430070 China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University) Ministry of Education Wuhan 430070 China
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33
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Huang Z, Yang W, Wang X, Guo F, Cheng Y, Cao L, Zhu W, Sun Y, Xiong H. Industrially Produced Rice Protein Ameliorates Dextran Sulfate Sodium-Induced Colitis via Protecting the Intestinal Barrier, Mitigating Oxidative Stress, and Regulating Gut Microbiota. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:4952-4965. [PMID: 35412826 DOI: 10.1021/acs.jafc.2c00585] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Inflammatory bowel disease (IBD) poses a threat to health and compromises the immune system and gut microflora. The present study aimed to explore the effects of rice protein (RP) purified from rice dregs (RD) on acute colitis induced by dextran sulfate sodium (DSS) and the underlying mechanisms. Results showed that RP treatment could alleviate the loss of body weight, colon shortening and injury, and the level of disease activity index, repair colonic function (claudin-1, ZO-1 and occludin), regulate inflammatory factors, and restore oxidative balance (malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), and total antioxidant capability (T-AOC)) in mice. Also, RP treatment could activate the Kelch-like ECH-associating protein 1 (Keap1)-nuclear factor E2-related factor 2 (Nrf2) signaling pathway, mediate the expression of downstream antioxidant protease (NQO-1, HO-1, and Gclc), regulate gut microbiota by enhancing the relative abundance of Akkermansia and increasing the value of F/B, and adjust short-chain fatty acid levels to alleviate DSS-induced colitis in mice. Thus, RP may be an effective therapeutic dietary resource for ulcerative colitis.
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Affiliation(s)
- Zhenghua Huang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Wenting Yang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Xiaoya Wang
- Jiangxi University of Traditional Chinese Medicine, Nanchang 330004, Jiangxi, P. R. China
| | - Fanghua Guo
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Yibin Cheng
- State Key Laboratory of Biocatalysis and Enzyme Engineering, Hubei Key Laboratory of Industrial Biotechnology, School of Life Sciences, Hubei University, Wuhan 430062, P. R. China
| | - Leipeng Cao
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Wenting Zhu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Yong Sun
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, Jiangxi, P. R. China
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Wang Q, Zhang H, Zhu W, Li C, Xu Y, Ding X, Zhou X. Physicochemical properties and nutritional quality of pre-fermented red bean steamed buns as affected by freeze-thaw cycling. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2060252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Qiuyu Wang
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
| | - Haifeng Zhang
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
- Department of Culinary Science, Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
| | - Wenzheng Zhu
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
- Department of Culinary Science, Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
| | - Chunmei Li
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
- Department of Culinary Science, Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
| | - Yan Xu
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
- Department of Culinary Science, Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
| | - Xiangli Ding
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
- Department of Culinary Science, Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
| | - Xiaoyan Zhou
- Department of Culinary Science and Nutrition, School of Tourism and Culinary Science, Yangzhou University, Engineering Research Center for Huaiyang Cuisin of Jiangsu Province, Yangzhou, China
- Department of Culinary Science, Key Laboratory of Chinese Cuisine Intangible Cultural Heritage Technology Inheritance, Ministry of Culture and Tourism, Yangzhou, China
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35
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Wu J, Zhou X, Zhou L, Liu W, Zhong J, Zhang Y, Liu C. Physicochemical, structural, and functional properties of protein fractions and protein isolate from jackfruit seeds. J Food Sci 2022; 87:1540-1551. [DOI: 10.1111/1750-3841.16104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 02/03/2022] [Accepted: 02/10/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Jingjing Wu
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang Jiangxi China
| | - Xin Zhou
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang Jiangxi China
| | - Lei Zhou
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang Jiangxi China
| | - Wei Liu
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang Jiangxi China
| | - Junzhen Zhong
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang Jiangxi China
| | - Yanjun Zhang
- Spice and Beverage Research Institute Chinese Academy of Tropical Agricultural Science Wanning Hainan China
| | - Chengmei Liu
- State Key Laboratory of Food Science and Technology Nanchang University Nanchang Jiangxi China
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36
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Zhang L, Xiao Q, Wang Y, Hu J, Xiong H, Zhao Q. Effects of sequential enzymatic hydrolysis and transglutaminase crosslinking on functional, rheological, and structural properties of whey protein isolate. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112415] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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37
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Özdemir EE, Görgüç A, Gençdağ E, Yılmaz FM. Physicochemical, functional and emulsifying properties of plant protein powder from industrial sesame processing waste as affected by spray and freeze drying. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2021.112646] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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38
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Pea protein microparticulation using extrusion cooking: Influence of extrusion parameters and drying on microparticle characteristics and sensory by application in a model milk dessert. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2021.102851] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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39
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Peng Y, Kyriakopoulou K, Rahmani A, Venema P, van der Goot AJ. Isochoric moisture heating as a tool to control the functionality of soy protein. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111979] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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40
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Shen Y, Li Y. Acylation modification and/or guar gum conjugation enhanced functional properties of pea protein isolate. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106686] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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41
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Freeze vs. Spray Drying for Dry Wild Thyme ( Thymus serpyllum L.) Extract Formulations: The Impact of Gelatin as a Coating Material. Molecules 2021; 26:molecules26133933. [PMID: 34203164 PMCID: PMC8271419 DOI: 10.3390/molecules26133933] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/03/2022] Open
Abstract
Freeze drying was compared with spray drying regarding feasibility to process wild thyme drugs in order to obtain dry formulations at laboratory scale starting from liquid extracts produced by different extraction methods: maceration and heat-, ultrasound-, and microwave-assisted extractions. Higher total powder yield (based on the dry weight prior to extraction) was achieved by freeze than spray drying and lower loss of total polyphenol content (TPC) and total flavonoid content (TFC) due to the drying process. Gelatin as a coating agent (5% w/w) provided better TPC recovery by 70% in case of lyophilization and higher total powder yield in case of spray drying by diminishing material deposition on the wall of the drying chamber. The resulting gelatin-free and gelatin-containing powders carried polyphenols in amount ~190 and 53–75 mg gallic acid equivalents GAE/g of powder, respectively. Microwave-assisted extract formulation was distinguished from the others by a higher content of polyphenols, proteins and sugars, higher bulk density and lower solubility. The type of the drying process mainly affected the position of the gelatin-derived -OH and amide bands in FTIR spectra. Spray-dried formulations compared to freeze-dried expressed higher thermal stability as confirmed by differential scanning calorimetry analysis and a higher diffusion coefficient; the last feature can be associated with the lower specific surface area of irregularly shaped freeze-dried particles (151–223 µm) compared to small microspheres (~8 µm) in spray-dried powder.
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Wang H, Li D, Wan C, Luo Y, Yang Q, Gao X, Feng B. Improving the Functionality of Proso Millet Protein and Its Potential as a Functional Food Ingredient by Applying Nitrogen Fertiliser. Foods 2021; 10:foods10061332. [PMID: 34207867 PMCID: PMC8227675 DOI: 10.3390/foods10061332] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2021] [Revised: 06/04/2021] [Accepted: 06/07/2021] [Indexed: 11/26/2022] Open
Abstract
Nitrogen is required for proso millet growth and has a critical influence on yield and quality. However, the effect of nitrogen fertilisation on proso millet protein properties remains unclear. This study aimed to investigate how nitrogen fertiliser treatment (180 kg/hm2) affects the structural and functional properties of proso millet protein. In comparison with the control group (N0), nitrogen fertiliser treatment loosened the dense structure of the protein and presented a larger particle size. Nitrogen treatment did not change the main subunit composition, and β-sheet and α-helix were the main secondary structures of proso millet protein based on Fourier transform infrared spectroscopy. In addition, nitrogen fertiliser treatment improved the content of hydrophobic amino acids and β-sheet proportion from proso millet protein, and high water/oil absorption capacity and thermal stability was observed, but the solubility, emulsion stability and foaming properties from proso millet protein decreased. Proso millet proteins exhibited high amino acid content and good functional properties, including solubility, foaming capacity and emulsifying properties, especially the w139 variety. Results show that proso millet protein has great potential for food applications. The above results provide useful information for the food industry to determine emerging gluten-free protein resources.
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Affiliation(s)
- Honglu Wang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
| | - Dongmei Li
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
| | - Chenxi Wan
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
| | - Yan Luo
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
| | - Qinghua Yang
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
| | - Xiaoli Gao
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
| | - Baili Feng
- State Key Laboratory of Crop Stress Biology in Arid Areas, College of Agronomy, Northwest A&F University, Yangling 712100, China; (H.W.); (D.L.); (C.W.); (Y.L.); (Q.Y.); (X.G.)
- Shaanxi Research Station of Crop Gene Resources & Germplasm Enhancement, Ministry of Agriculture, Yangling 712100, China
- Correspondence:
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43
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Effect of phosphate salts on the gluten network structure and quality of wheat noodles. Food Chem 2021; 358:129895. [PMID: 33933957 DOI: 10.1016/j.foodchem.2021.129895] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Revised: 04/08/2021] [Accepted: 04/16/2021] [Indexed: 11/22/2022]
Abstract
The effects of three phosphate salts (PS) on the secondary structure, microstructure of gluten, rheological properties of dough and water status of noodles were investigated to determine the mechanisms underlying the changes in the quality of noodles. Changes in the secondary structure detected were the increased number of β-sheet and decreased number of random coil structures. PS reduced the content of free sulfhydryl (SH) and increased the content of disulfide (SS) bonds. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) analysis indicated that the band density of the high molecular regions of the gluten was reduced. The results showed that adding PS induced a more compact microstructure and improved the G' and G'' values of the dough. After adding PS, the water-solids interaction in noodles was enhanced by the decreased water mobility. It was concluded that PS promoted the water holding capacity of the noodles and strengthened the gluten network.
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44
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Zhang L, Chen X, Wang Y, Guo F, Hu S, Hu J, Xiong H, Zhao Q. Characteristics of rice dreg protein isolate treated by high-pressure microfluidization with and without proteolysis. Food Chem 2021; 358:129861. [PMID: 33932761 DOI: 10.1016/j.foodchem.2021.129861] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 03/23/2021] [Accepted: 04/12/2021] [Indexed: 10/21/2022]
Abstract
The characteristics of rice dreg protein isolate (RDPI) treated by microfluidization (0, 40, 80, 120, and 160 MPa) with or without proteolysis were investigated. Alcalase, Neutrase, and the combination of the two (Alcalcase:Neutrase = 1:1 [w/w]) were adopted for hydrolysis. The surface hydrophobicity and solubility of RDPI were increased. As pressure increased, different structures of RDPI exhibited disaggregation (<120 MPa) and reaggregation (160 MPa), and the effect on proteolysis was significant. The solubility of Neutrase and combined enzyme hydrolysates was improved after microfluidization. Additionally, the optimum choice of microfluidization (40 MPa) and Neutrase was efficient for improving the DPPH radical scavenging activity. The results indicate that both pressure level and enzyme type synergistically determine the functionality and antioxidant activities of products. This work may provide an alternative methodology for improving the utilization of RDPI in the food industry through desirable modifications.
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Affiliation(s)
- Liqiong Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Xianxin Chen
- Jiangxi Health Vocational College, Nanchang 330052, China
| | - Yong Wang
- School of Chemical Engineering, UNSW, Sydney, NSW 2052, Australia
| | - Fanghua Guo
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Song Hu
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Juwu Hu
- Jiangxi Academy of Sciences, Jiangxi 330029, China.
| | - Hua Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China
| | - Qiang Zhao
- State Key Laboratory of Food Science and Technology, Nanchang University, Jiangxi 330047, China.
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Pattnaik M, Mishra HN. Amelioration of the stability of polyunsaturated fatty acids and bioactive enriched vegetable oil: blending, encapsulation, and its application. Crit Rev Food Sci Nutr 2021; 62:6253-6276. [PMID: 33724100 DOI: 10.1080/10408398.2021.1899127] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Lipid oxidation in vegetable oils is the primary concern for food technologists. Modification of oils like hydrogenation, fractionation, inter-esterification, and blending are followed to improve nutritional quality. Blending non-conventional/conventional vegetable oils to obtain a synergistic oil mixture is commonly practiced in the food industry to enhance the nutritional characteristics and stability of oil at an affordable price. Microencapsulation of these oils provides a functional barrier of core and coating material from the adverse environmental conditions, thereby enhancing the oxidative stability, thermo-stability, shelf-life, and biological activity of oils. Microencapsulation of oils has been conducted and commercialized by employing different conventional methods including emulsification, spray-drying, freeze-drying, coacervation, and melt-extrusion compared with new, improved methods like microwave drying, spray chilling, and co-extrusion. The microencapsulated oil emulsion can be either dried to easy-to-handle solids/microcapsules, converted into soft solids, or enclosed in a gel-like matrix, increasing the shelf-life of the liquid oil. The omega-rich microcapsules have a wide application in confectionery, dairy, ice-cream, and pharmaceutical industries. This review summarizes recent developments in blending and microencapsulation technologies in improving the stability and nutritional value of edible oils.
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Affiliation(s)
- Monalisha Pattnaik
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
| | - Hari Niwas Mishra
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India
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Luo L, Zhang J, Zhang K, Wen Q, Ming K, Xiong H, Ning F. Peanut selenium distribution, concentration, speciation, and effects on proteins after exogenous selenium biofortification. Food Chem 2021; 354:129515. [PMID: 33756318 DOI: 10.1016/j.foodchem.2021.129515] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 02/20/2021] [Accepted: 02/28/2021] [Indexed: 12/18/2022]
Abstract
Fortification of Se is vital importance for both nutritional demand and prevention of Se-deficiency-related diseases. To better understand t selenium distribution, concentration, speciation, its effects on proteins, and cytotoxic activity, the biofortification of exogenous Se in peanut was conducted in this study. Our data have shown that foliar spraying of Se-riched fertilizer was more efficient for biotransformation of inorganic Se to organic Se by peanut plant. Besides, the Se content in peanut was increased in a dose-dependent manner. Our present study also confirmed that SeCys2, MeSeCys, and SeMet were the main Se speciation within peanut proteins. Moreover, the secondary structure and thermostability of peanut protein were altered as a result of the Se treatments, and these alterations could be attributed to the replacements of cysteine and methionine by selenocysteine and selenomethionine, respectively. The Se-enriched peanut protein could significantly inhibit the growth of Caco-2 and HepG2 in a concentration-dependent manner.
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Affiliation(s)
- Liping Luo
- School of Life Sciences, Nanchang University, Nanchang 330031, China; State Key Laboratory of Food Science and Technology, College of Food Science, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Jinping Zhang
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Kangyi Zhang
- Center of Agricultural Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Qingyu Wen
- Center of Agricultural Products Processing, Henan Academy of Agricultural Sciences, Zhengzhou 450002, China
| | - Kang Ming
- School of Life Sciences, Nanchang University, Nanchang 330031, China
| | - Hua Xiong
- School of Life Sciences, Nanchang University, Nanchang 330031, China; State Key Laboratory of Food Science and Technology, College of Food Science, Nanchang University, Nanchang, Jiangxi 330047, China
| | - Fangjian Ning
- School of Life Sciences, Nanchang University, Nanchang 330031, China; State Key Laboratory of Food Science and Technology, College of Food Science, Nanchang University, Nanchang, Jiangxi 330047, China.
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Using Peptidomics and Machine Learning to Assess Effects of Drying Processes on the Peptide Profile within a Functional Ingredient. Processes (Basel) 2021. [DOI: 10.3390/pr9030425] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Bioactive peptides are known to have many health benefits beyond nutrition; yet the peptide profile of high protein ingredients has been largely overlooked when considering the effects of different processing techniques. Therefore, to investigate whether drying conditions could affect the peptide profile and bioactivity within a functional ingredient, we examined the effects of spray (SD) and freeze (FD) drying on rice natural peptide network (NPN), a characterised functional ingredient sourced from the Oryza sativa proteome, which has previously been shown to effectively modulate circulating cytokines and improve physical performance in humans. In the manufacturing process, rice NPN was either FD or SD. Employing a peptidomic approach, we investigated the physicochemical characteristics of peptides common and unique to FD and SD preparations. We observed similar peptide profiles regarding peptide count, amino acid distribution, weight, charge, and hydrophobicity in each sample. Additionally, to evaluate the effects of drying processes on functionality, using machine learning, we examined constituent peptides with predicted anti-inflammatory activity within both groups and identified that the majority of anti-inflammatory peptides were common to both. Of note, key bioactive peptides validated within rice NPN were recorded in both SD and FD samples. The present study provides an important insight into the overall stability of the peptide profile and the use of machine learning in assessing predicted retention of bioactive peptides contributing to functionality during different types of processing.
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Effect of microbial transglutaminase on the structural and rheological characteristics and in vitro digestion of rice glutelin–casein blends. Food Res Int 2021; 139:109832. [DOI: 10.1016/j.foodres.2020.109832] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 09/18/2020] [Accepted: 10/16/2020] [Indexed: 12/13/2022]
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Brishti FH, Chay SY, Muhammad K, Ismail-Fitry MR, Zarei M, Karthikeyan S, Saari N. Effects of drying techniques on the physicochemical, functional, thermal, structural and rheological properties of mung bean (Vigna radiata) protein isolate powder. Food Res Int 2020; 138:109783. [PMID: 33288169 DOI: 10.1016/j.foodres.2020.109783] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/30/2020] [Accepted: 10/04/2020] [Indexed: 11/24/2022]
Abstract
Mung bean is an inexpensive yet sustainable protein source. Current work compared the effects of freeze (FD), spray (SD) and oven drying (OD), on mung bean protein isolate (MBPI) produced on pilot scale. All samples showed no dissociation of protein subunits and were thermally stable (Td = 157.90-158.07 °C). According to morphological studies, FD formed a porous protein while SD and OD formed wrinkled and compact crystals, respectively. FD and SD formed elastic gels with better gelling capacity than OD (aggregated gel). FD showed exceptional protein solubility, water and oil absorption capacity (4.23 g/g and 8.38 g/g, respectively). SD demonstrated the smallest particle size, excellent emulsion activity index (29.21 m2/g) and stability (351.90 min) and the highest β-sheet amount (37.61%). FTIR spectra for all samples showed characteristic peaks which corresponded well to the secondary structure of legume proteins. Rheological analysis revealed that gelation temperature for all MBPI lied around 90 °C. Current work described the different final properties achieved for MBPI produced under different drying techniques that allowed tailoring for different food systems, whereby FD is ideal for meat extender, SD is suitable for meat emulsion while OD is suitable in general protein-based application.
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Affiliation(s)
- Fatema Hossain Brishti
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Shyan Yea Chay
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Kharidah Muhammad
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Mohammad Rashedi Ismail-Fitry
- Department of Food Technology, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Mohammad Zarei
- Department of Food Science and Technology, School of Industrial Technology, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
| | - Sivakumaran Karthikeyan
- Department of Physics, Dr. Ambedkar Government Arts College, Chennai, Tamil Nadu 600 039, India
| | - Nazamid Saari
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.
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Ng SW, Lu P, Rulikowska A, Boehm D, O'Neill G, Bourke P. The effect of atmospheric cold plasma treatment on the antigenic properties of bovine milk casein and whey proteins. Food Chem 2020; 342:128283. [PMID: 33067041 DOI: 10.1016/j.foodchem.2020.128283] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 09/29/2020] [Accepted: 09/29/2020] [Indexed: 10/23/2022]
Abstract
Casein, β-lactoglobulin and α-lactalbumin are major milk protein allergens. In the present study, the structural modifications and antigenic response of these bovine milk allergens as induced by non-thermal treatment by atmospheric cold plasma were investigated. Spark discharge (SD) and glow discharge (GD), as previously characterized cold plasma systems, were used for protein treatments. Casein, β-lactoglobulin and α-lactalbumin were analyzed before and after plasma treatment using SDS-PAGE, FTIR, UPLC-MS/MS and ELISA. SDS-PAGE results revealed a reduction in the casein and α-lactalbumin intensity bands after SD or GD treatments; however, the β-lactoglobulin intensity band remained unchanged. FTIR studies revealed alterations in protein secondary structure induced by plasma, particularly contents of β-sheet and β-turn. The UPLC-MS/MS results showed that the amino acid compositions decreased after plasma treatments. ELISA of casein and α-lactalbumin showed a decrease in antigenicity post plasma treatment, whereas ELISA of β-lactoglobulin showed an increase in antigenicity. The study indicates that atmospheric cold plasma can be tailored to mitigate the risk of bovine milk allergens in the dairy processing and ingredients sectors.
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Affiliation(s)
- Sing Wei Ng
- Plasma Research Group, School of Biosystems and Food Engineering, University College Dublin, Dublin 4, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin, Dublin 7, Ireland
| | - Peng Lu
- Plasma Research Group, School of Biosystems and Food Engineering, University College Dublin, Dublin 4, Ireland
| | - Aleksandra Rulikowska
- Environmental Sustainability and Health Institute, Technological University Dublin, Dublin 7, Ireland
| | - Daniela Boehm
- Environmental Sustainability and Health Institute, Technological University Dublin, Dublin 7, Ireland
| | - Graham O'Neill
- Environmental Sustainability and Health Institute, Technological University Dublin, Dublin 7, Ireland
| | - Paula Bourke
- Plasma Research Group, School of Biosystems and Food Engineering, University College Dublin, Dublin 4, Ireland; Environmental Sustainability and Health Institute, Technological University Dublin, Dublin 7, Ireland; Institute for Global Food Security, School of Biological Sciences, Queens University Belfast, Northern Ireland, United Kingdom.
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