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Fernandes Almeida R, Gouveia Gomes MH, Kurozawa LE. Enzymatic hydrolysis improves the encapsulation properties of rice bran protein by increasing retention of anthocyanins in microparticles of grape juice. Food Res Int 2024; 180:114090. [PMID: 38395563 DOI: 10.1016/j.foodres.2024.114090] [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: 12/01/2023] [Revised: 01/26/2024] [Accepted: 01/31/2024] [Indexed: 02/25/2024]
Abstract
There is a growing demand for the food industry to find appealing matrices that display a clean and sustainable label capable of replacing animal proteins in the encapsulation market for natural pigments. Therefore, this study evaluated the impact of enzymatic hydrolysis by Flavourzyme protease on the encapsulation properties of rice bran proteins, aiming to protect anthocyanins in grape juice microparticles. To achieve this, rice bran protein hydrolysates (RPH) with low (5%, LRPH), medium (10%, MRPH), and high (15%, HRPH) degrees of hydrolysis (DH) were used combined with maltodextrin as carrier agents for the microencapsulation of grape juice by spray drying. The feed solutions contained 1 g of carrier agents (CA)/g of soluble solids from the juice (SS) and protein: a 15% CA ratio. Non-hydrolyzed rice protein was used as a carrier agent to obtain a control sample to evaluate the effect of enzymatic hydrolysis on the microencapsulation of grape juice. Protein modification increased the surface activity of the protein and its ability to migrate to the surface of the microparticles, forming a protective film, as observed by X-ray photoelectron spectroscopy. Using HRPH as a carrier agent combined with maltodextrin improved the internal and total anthocyanin retention, antioxidant capacity measured by DPPH and ABTS+ assays, and powder recovery compared to the control sample, and increased DH reduced particle size and powder stickiness. These particles were more homogeneous, rough, and without cracks. The microencapsulation efficiency was above 70%. All powders exhibited low values of hygroscopicity and degree of caking. Therefore, enzymatic hydrolysis proves to be a promising alternative for improving rice bran protein's encapsulating properties since using RPH as an encapsulating agent conferred greater protection of anthocyanins in microparticles. Moreover, the HRPH sample exhibited the most favorable outcomes overall, indicating its potential for prospective utilization in the market, supported by its elevated Tg.
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Affiliation(s)
- Rafael Fernandes Almeida
- Departamento de Engenharia e Tecnologia de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas, 13083-862 Campinas, SP, Brazil
| | - Matheus Henrique Gouveia Gomes
- Departamento de Engenharia e Tecnologia de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas, 13083-862 Campinas, SP, Brazil
| | - Louise Emy Kurozawa
- Departamento de Engenharia e Tecnologia de Alimentos, Faculdade de Engenharia de Alimentos, Universidade Estadual de Campinas, 13083-862 Campinas, SP, Brazil.
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2
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Enzymatic hydrolysis of lentil protein concentrate for modification of physicochemical and techno-functional properties. Eur Food Res Technol 2022. [DOI: 10.1007/s00217-022-04152-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
AbstractThe effects of hydrolysis by commercial food-grade proteases on the physicochemical and techno-functional properties of lentil protein concentrate were investigated. Lentil protein concentrate was hydrolysed with Alcalase, Novozym 11028 or Flavourzyme, and a control was prepared without enzyme addition under the same conditions. Differences in specificity between the three proteases were evident in the electrophoretic protein profile, reversed-phase HPLC peptide profile, and free amino acid composition. Alcalase and Novozym were capable of extensively degrading all the major protein fractions. Alcalase or Novozym treatment resulted in considerably higher solubility under acidic conditions compared to the control. Flavourzyme treatment resulted in moderately improved solubility in the acidic range, but slightly lower solubility at pH 7. Alcalase treatment resulted in slightly larger particle size and slightly higher viscosity. The foaming properties of the protein concentrate were not significantly affected by hydrolysis. Increased solubility in acidic conditions with hydrolysis could broaden the range of food and beverage applications for lentil protein concentrate.
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3
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Ganesh S, Ningtyas DW, Prakash S. Investigating the functionality of enzymatically (transglutaminase and alcalase) treated almond protein isolate. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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4
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Enzymatic Hydrolysis of Pulse Proteins as a Tool to Improve Techno-Functional Properties. Foods 2022; 11:foods11091307. [PMID: 35564030 PMCID: PMC9104109 DOI: 10.3390/foods11091307] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/13/2022] [Accepted: 04/16/2022] [Indexed: 02/01/2023] Open
Abstract
Pulse proteins are being increasingly investigated as nutritious and functional ingredients which could provide alternatives to animal proteins; however, pulse protein ingredients do not always meet the functionality requirements necessary for various applications. Consequently, enzymatic hydrolysis can be employed as a means of improving functional properties such as solubility, emulsifying, foaming, and gelling properties. This review aims to examine the current literature regarding modification of these properties with enzymatic hydrolysis. The effects of enzymatic hydrolysis on the functionality of pulse proteins generally varies considerably based on the enzyme, substrate, processing steps such as heat treatment, degree of hydrolysis, and pH. Differences in protease specificity as well as protein structure allow for a wide variety of peptide mixtures to be generated, with varying hydrophobic and electrostatic properties. Typically, the most significant improvements are seen when the original protein ingredient has poor initial functionality. Solubility is usually improved in the mildly acidic range, which may also correspond with improved foaming and emulsifying properties. More work should be carried out on the potential of enzymatic hydrolysis to modify gelation properties of pulse proteins, as the literature is currently lacking. Overall, careful selection of proteases and control of hydrolysis will be necessary to maximize the potential of enzymatic hydrolysis as a tool to improve pulse protein functionality and broaden the range of potential applications.
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5
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Microbial Peptidase in Food Processing: Current State of the Art and Future Trends. Catal Letters 2022. [DOI: 10.1007/s10562-022-03965-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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6
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Microencapsulation and controlled release of α-tocopherol by complex coacervation between pea protein and tragacanth gum: A comparative study with arabic and tara gums. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.102951] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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7
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Afzaal M, Saeed F, Aamir M, Usman I, Ashfaq I, Ikram A, Hussain M, Anjum FM, Waleed M, Suleria H. ENCAPSULATING PROPERTIES OF LEGUME PROTEINS: RECENT UPDATES & PERSPECTIVES. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2021. [DOI: 10.1080/10942912.2021.1987456] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Muhammad Afzaal
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Farhan Saeed
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Muhammad Aamir
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Ifrah Usman
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Iqra Ashfaq
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Ali Ikram
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Muzzamal Hussain
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | | | - Muhammad Waleed
- Department of Food Sciences, Government College University Faisalabad, Pakistan
| | - Hafiz Suleria
- Department of Agriculture and Food Systems, The University of Melbourne, Australia
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8
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Modification of pea protein isolate functionality by freeze–thaw cycling. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01151-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Galves C, Galli G, Miranda CG, Kurozawa LE. Improving the emulsifying property of potato protein by hydrolysis: an application as encapsulating agent with maltodextrin. INNOV FOOD SCI EMERG 2021. [DOI: 10.1016/j.ifset.2021.102696] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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10
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Elik A, Koçak Yanık D, Göğüş F. A comparative study of encapsulation of carotenoid enriched-flaxseed oil and flaxseed oil by spray freeze-drying and spray drying techniques. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2021.111153] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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11
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Kannamangalam Vijayan U, Shah NN, Muley AB, Singhal RS. Complexation of curcumin using proteins to enhance aqueous solubility and bioaccessibility: Pea protein vis-à-vis whey protein. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110258] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Abstract
Microencapsulation is a well-known technology for the lipid delivery system. It prevents the oxidation of fatty acids and maintains the quality of lipid after extraction from oil seed and processing. In flaxseed oil, the amount of ω-3 and ω-6 polyunsaturated fatty acids are 39.90–60.42% and 12.25–17.44%, respectively. A comprehensive review article on the microencapsulation of flaxseed oil has not been published yet. Realizing the great advantages of flaxseed oil, information about different technologies related to the microencapsulation of flaxseed oil and their characteristics are discussed in a comprehensive way, in this review article. To prepare the microcapsule of flaxseed oil, an emulsion of oil-water is performed along with a wall material (matrix), followed by drying with a spray-dryer or freeze-dryer. Different matrices, such as plant and animal-based proteins, maltodextrin, gum Arabic, and modified starch are used for the encapsulation of flaxseed oil. In some cases, emulsifiers, such as Tween 80 and soya lecithin are used to prepare flaxseed oil microcapsules. Physico-chemical and bio-chemical characteristics of flaxseed oil microcapsules depend on process parameters, ratio of oil and matrix, and characteristics of the matrix. As an example, the size of the microcapsule, prepared with spray-drying and freeze-drying ranges between 10–400 and 20–5000 μm, respectively. It may be considered that the comprehensive information on the encapsulation of flaxseed oil will boost the development of functional foods and biopharmaceuticals.
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13
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Tang Z, Ying R, Shi L. Physicochemical and functional characteristics of proteins treated by a pH‐shift process: a review. Int J Food Sci Technol 2021. [DOI: 10.1111/ijfs.14758] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Zhen‐Xing Tang
- Department of Culinary Art Tourism College of Zhejiang Hangzhou Zhejiang 311231 China
| | - Rui‐Feng Ying
- College of Light Industry Science and Engineering Nanjing Forestry University Nanjing Jiangsu 210037 China
| | - Lu‐E Shi
- School of Life and Environmental Sciences Hangzhou Normal University Hangzhou Zhejiang 311121 China
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14
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Gharibzahedi SMT, Smith B. Legume proteins are smart carriers to encapsulate hydrophilic and hydrophobic bioactive compounds and probiotic bacteria: A review. Compr Rev Food Sci Food Saf 2021; 20:1250-1279. [PMID: 33506640 DOI: 10.1111/1541-4337.12699] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Revised: 10/30/2020] [Accepted: 11/30/2020] [Indexed: 12/21/2022]
Abstract
Encapsulation is a promising technological process enabling the protection of bioactive compounds against harsh storage, processing, and gastrointestinal tract (GIT) conditions. Legume proteins (LPs) are unique carriers that can efficiently encapsulate these unstable and highly reactive ingredients. Stable LPs-based microcapsules loaded with active ingredients can thus develop to be embedded into processed functional foods. The recent advances in micro- and nanoencapsulation process of an extensive span of bioactive health-promoting probiotics and chemical compounds such as marine and plant fatty acid-rich oils, carotenoid pigments, vitamins, flavors, essential oils, phenolic and anthocyanin-rich extracts, iron, and phytase by LPs as single wall materials were highlighted. A technical summary of the use of single LP-based carriers in designing innovative delivery systems for natural bioactive molecules and probiotics was made. The encapsulation mechanisms, encapsulation efficiency, physicochemical and thermal stability, as well as the release and absorption behavior of bioactives were comprehensively discussed. Protein isolates and concentrates of soy and pea were the most common LPs to encapsulate nutraceuticals and probiotics. The microencapsulation of probiotics using LPs improved bacteria survivability, storage stability, and tolerance in the in vitro GIT conditions. Moreover, homogenization and high-pressure pretreatments as well as enzymatic cross-linking of LPs significantly modify their structure and functionality to better encapsulate the bioactive core materials. LPs can be attractive delivery devices for the controlled release and increased bioaccessibility of the main food-grade bioactives.
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Affiliation(s)
| | - Brennan Smith
- Department of Animal, Veterinary and Food Sciences, University of Idaho, Moscow, Idaho, USA
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15
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Pham LB, Wang B, Zisu B, Truong T, Adhikari B. Microencapsulation of flaxseed oil using polyphenol-adducted flaxseed protein isolate-flaxseed gum complex coacervates. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105944] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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16
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Ge J, Sun CX, Corke H, Gul K, Gan RY, Fang Y. The health benefits, functional properties, modifications, and applications of pea (Pisum sativum L.) protein: Current status, challenges, and perspectives. Compr Rev Food Sci Food Saf 2020; 19:1835-1876. [PMID: 33337084 DOI: 10.1111/1541-4337.12573] [Citation(s) in RCA: 99] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/31/2020] [Accepted: 05/03/2020] [Indexed: 01/23/2023]
Abstract
In recent years, the development and application of plant proteins have drawn increasing scientific and industrial interests. Pea (Pisum sativum L.) is an important source of high-quality vegetable protein in the human diet. Its protein components are generally considered hypoallergenic, and many studies have highlighted the health benefits associated with the consumption of pea protein. Pea protein and its hydrolysates (pea protein hydrolysates [PPH]) possess health benefits such as antioxidant, antihypertensive, and modulating intestinal bacteria activities, as well as various functional properties, including solubility, water- and oil-holding capacities, and emulsifying, foaming, and gelling properties. However, the application of pea protein in the food system is limited due to its poor functional performances. Several frequently applied modification methods, including physical, chemical, enzymatic, and combined treatments, have been used for pea protein to improve its functional properties and expand its food applications. To date, different applications of pea protein in the food system have been extensively studied, for example, encapsulation for bioactive ingredients, edible films, extruded products and substitution for cereal flours, fats, and animal proteins. This article reviews the current status of the knowledge regarding pea protein, focusing on its health benefits, functional properties, and structural modifications, and comprehensively summarizes its potential applications in the food industry.
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Affiliation(s)
- Jiao Ge
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Cui-Xia Sun
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Harold Corke
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Khalid Gul
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
| | - Ren-You Gan
- Research Center for Plants and Human Health, Institute of Urban Agriculture, Chinese Academy of Agricultural Sciences, Chengdu, People's Republic of China
| | - Yapeng Fang
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, People's Republic of China
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17
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Nawaz MA, Tan M, Øiseth S, Buckow R. An Emerging Segment of Functional Legume-Based Beverages: A Review. FOOD REVIEWS INTERNATIONAL 2020. [DOI: 10.1080/87559129.2020.1762641] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Malik Adil Nawaz
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Werribee, Australia
| | - Melvin Tan
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Werribee, Australia
| | - Sofia Øiseth
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Werribee, Australia
| | - Roman Buckow
- Commonwealth Scientific and Industrial Research Organisation (CSIRO), Agriculture and Food, Werribee, Australia
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18
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Lu ZX, He JF, Zhang YC, Bing DJ. Composition, physicochemical properties of pea protein and its application in functional foods. Crit Rev Food Sci Nutr 2019; 60:2593-2605. [PMID: 31429319 DOI: 10.1080/10408398.2019.1651248] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Field pea is one of the most important leguminous crops over the world. Pea protein is a relatively new type of plant proteins and has been used as a functional ingredient in global food industry. Pea protein includes four major classes (globulin, albumin, prolamin, and glutelin), in which globulin and albumin are major storage proteins in pea seeds. Globulin is soluble in salt solutions and can be further classified into legumin and vicilin. Albumin is soluble in water and regarded as metabolic and enzymatic proteins with cytosolic functions. Pea protein has a well-balanced amino acid profile with high level of lysine. The composition and structure of pea protein, as well as the processing conditions, significantly affect its physical and chemical properties, such as hydration, rheological characteristics, and surface characteristics. With its availability, low cost, nutritional values and health benefits, pea protein can be used as a novel and effective alternative to substitute for soybean or animal proteins in functional food applications.
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Affiliation(s)
- Z X Lu
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta, Canada
| | - J F He
- Inner Mongolia Academy of Agriculture and Animal Husbandry Sciences, Hohhot, Inner Mongolia, P.R. China
| | - Y C Zhang
- Lethbridge Research and Development Centre, Agriculture and Agri-Food Canada, Lethbridge, Alberta, Canada
| | - D J Bing
- Lacombe Research and Development Centre, Agriculture and Agri-Food Canada, Lacombe, Alberta, Canada
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19
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Eckert E, Han J, Swallow K, Tian Z, Jarpa‐Parra M, Chen L. Effects of enzymatic hydrolysis and ultrafiltration on physicochemical and functional properties of faba bean protein. Cereal Chem 2019. [DOI: 10.1002/cche.10169] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ewelina Eckert
- Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton Alberta Canada
| | - Jay Han
- Food Processing Development Centre Alberta Agriculture and Forestry Leduc Alberta Canada
| | - Kevin Swallow
- Food Processing Development Centre Alberta Agriculture and Forestry Leduc Alberta Canada
| | - Zhigang Tian
- Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton Alberta Canada
| | | | - Lingyun Chen
- Department of Agricultural, Food and Nutritional Science University of Alberta Edmonton Alberta Canada
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20
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Li X, Feng Y, Ting S, Jiang J, Liu Y. Effect of processing conditions on the physiochemical properties and nutrients retention of spray-dried microcapsules using mixed protein system. CYTA - JOURNAL OF FOOD 2019. [DOI: 10.1080/19476337.2018.1518932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xiang Li
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P.R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. China
- Abbott Nutritional Research and Development Center, Pacific Asia, Singapore
| | - Yiming Feng
- Abbott Nutritional Research and Development Center, Pacific Asia, Singapore
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Sharon Ting
- Abbott Nutritional Research and Development Center, Pacific Asia, Singapore
| | - Jiang Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P.R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. China
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, P.R. China
- School of Food Science and Technology, Jiangnan University, Wuxi, P.R. China
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21
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Qamar S, Bhandari B, Prakash S. Effect of different homogenisation methods and UHT processing on the stability of pea protein emulsion. Food Res Int 2019; 116:1374-1385. [PMID: 30716929 DOI: 10.1016/j.foodres.2018.10.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 10/03/2018] [Accepted: 10/07/2018] [Indexed: 10/28/2022]
Abstract
Pea protein is a very popular source of edible plant-based protein among legumes. In this study, the stability of ultra high temperature (UHT) processed pea protein emulsion prepared from 0.5 and 1.0% (w/v) pea protein concentrate (PPC) by two different homogenisation methods of microfluidisation (500 Bar) and ultrasonication (ultrasonicated for 1, 3 and 5 min) was investigated. In addition, the emulsion properties (particle and droplet size, flocculation, coalescence, zeta potential, hydrophobicity and creaming index) of PPC emulsions before and after UHT treatment were measured. The overall heat transfer coefficient (OHTC) versus time graphs were stable during UHT processing for both microfluidised and ultrasonicated PPC emulsions that indicates no fouling and good stability under the thermal treatment condition. Freshly prepared emulsion using 0.5 and 1.0% PPC and ultrasonicated for 5 min showed creaming index of 5.73 and 8.39%, particle size of 0.96 and 1.53 μm respectively. In addition, the fat droplet size for the above samples measured 1.05 and 1.85 μm for larger fat droplets and 0.51 and 0.72 μm for smaller fat droplets, respectively. However, after UHT treatment this emulsion destabilised due to protein aggregation as indicated by the high flocculation index (13.22 and 103.35%), particle size (1.59 and 3.23 μm) and droplet size (1.30 and 2.53 μm, for large fat droplets and 0.90 and 1.22 μm, for small fat droplets). After UHT treatment the microfluidised PPC emulsion using 0.5 and 1.0% PPC were the most stable with small particle size (2.85 and 0.36 μm), high zeta potential (-56.36 and - 27.30) and low creaming index (3.87% and 4.97%), respectively as compared to ultrasonicated samples. Overall, this study revealed that UHT treatment improved emulsion properties of the microfluidised PPC emulsion compared to the ultrasonicated PPC emulsion.
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Affiliation(s)
- Sadia Qamar
- The University of Queensland, School of Agriculture and Food Sciences, Qld 4072, Australia
| | - Bhesh Bhandari
- The University of Queensland, School of Agriculture and Food Sciences, Qld 4072, Australia
| | - Sangeeta Prakash
- The University of Queensland, School of Agriculture and Food Sciences, Qld 4072, Australia.
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22
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Dzuvor CKO, Taylor JT, Acquah C, Pan S, Agyei D. Bioprocessing of Functional Ingredients from Flaxseed. Molecules 2018; 23:molecules23102444. [PMID: 30250012 PMCID: PMC6222892 DOI: 10.3390/molecules23102444] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 09/21/2018] [Accepted: 09/22/2018] [Indexed: 01/04/2023] Open
Abstract
Flaxseeds (Linum usitatissimum L.) are oilseeds endowed with nutritional constituents such as lignans, lipids, proteins, fibre, carbohydrates, and micronutrients. Owing to their established high nutritional profile, flaxseeds have gained an established reputation as a dietary source of high value functional ingredients. Through the application of varied bioprocessing techniques, these essential constituents in flaxseeds can be made bioavailable for different applications such as nutraceuticals, cosmetics, and food industry. However, despite their food and health applications, flaxseeds contain high levels of phytotoxic compounds such as linatine, phytic acids, protease inhibitors, and cyanogenic glycosides. Epidemiological studies have shown that the consumption of these compounds can lead to poor bioavailability of essential nutrients and/or health complications. As such, these components must be removed or inactivated to physiologically undetectable limits to render flaxseeds safe for consumption. Herein, critical description of the types, characteristics, and bioprocessing of functional ingredients in flaxseed is presented.
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Affiliation(s)
| | | | - Caleb Acquah
- School of Nutrition Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada.
| | - Sharadwata Pan
- School of Life Sciences Weihenstephan, Technical University of Munich, Freising 85354, Germany.
| | - Dominic Agyei
- Department of Food Science, University of Otago, Dunedin 9054, New Zealand.
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23
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A pH shift approach to the improvement of interfacial properties of plant seed proteins. Curr Opin Food Sci 2018. [DOI: 10.1016/j.cofs.2018.01.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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