1
|
Mahmud N, Islam J, Oyom W, Adrah K, Adegoke SC, Tahergorabi R. A review of different frying oils and oleogels as alternative frying media for fat-uptake reduction in deep-fat fried foods. Heliyon 2023; 9:e21500. [PMID: 38027829 PMCID: PMC10660127 DOI: 10.1016/j.heliyon.2023.e21500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 10/18/2023] [Accepted: 10/23/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose This review aims to examine the potential of oleogels as a frying medium to decrease oil absorption during deep-frying and enhance the nutritional and energy content of foods. By investigating the factors influencing oil incorporation during deep-frying and examining the application of oleogels in this process, we seek to provide insights into using oleogels as an alternative to traditional cooking oils. Scope Deep-frying, a widely used cooking method, leads to the retention of large amounts of oil in fried food, which has been associated with health concerns. To address this issue, researchers have investigated various methods to minimize oil absorption during frying. One promising approach is the use of oleogels, which are thermo-reversible, three-dimensional gel networks formed by entrapment of bulk oil with a low concentration (<10% of weight) of solid lipid materials known as oleogelators. This review will focus on the following aspects: a) an overview of deep-fried foods, b) factors influencing oil uptake and underlying mechanisms for oil absorption during deep-frying, c) the characterization and application of different frying oils and their oleogels in deep-fried foods, d) components of the oleogel system for deep-frying, and e) the health impact, oxidative stability, and sensory acceptability of using oleogels in deep-frying. Key findings The review highlights the potential of oleogels as a promising alternative frying medium to reduce fat absorption in deep-fried foods. Considering the factors influencing oil uptake during deep-frying, as well as exploring the properties and applications of different frying oils and their oleogels, can result in improved product qualities and heightened consumer acceptance. Moreover, oleogels offer the advantage of lower fat content in fried products, addressing health concerns associated with traditional deep-frying methods. The capacity to enhance the nutritional and energy profile of foods while preserving sensory qualities and oxidative stability positions oleogels as a promising choice for upcoming food processing applications.
Collapse
Affiliation(s)
- Niaz Mahmud
- Food and Nutritional Sciences Program, North Carolina Agricultural & Technical State University, Greensboro, NC, 27411, USA
| | - Joinul Islam
- Food and Nutritional Sciences Program, North Carolina Agricultural & Technical State University, Greensboro, NC, 27411, USA
- Department of Food Science and Technology, University of Georgia, Athens, GA, 30602, USA
| | - William Oyom
- Food and Nutritional Sciences Program, North Carolina Agricultural & Technical State University, Greensboro, NC, 27411, USA
| | - Kelvin Adrah
- Joint School of Nanoscience and Nanoengineering, 2907 East Gate City Blvd, Greensboro, NC, 27401, USA
| | | | - Reza Tahergorabi
- Food and Nutritional Sciences Program, North Carolina Agricultural & Technical State University, Greensboro, NC, 27411, USA
| |
Collapse
|
2
|
Shuai X, McClements DJ, Geng Q, Dai T, Ruan R, Du L, Liu Y, Chen J. Macadamia oil-based oleogels as cocoa butter alternatives: Physical properties, oxidative stability, lipolysis, and application. Food Res Int 2023; 172:113098. [PMID: 37689870 DOI: 10.1016/j.foodres.2023.113098] [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: 01/19/2023] [Revised: 04/20/2023] [Accepted: 06/09/2023] [Indexed: 09/11/2023]
Abstract
In this study, macadamia oil-based oleogels were prepared using monoglyceride stearate (MG) as a gelator with a low critical gelation concentration (3.0 wt%). The physical properties of the oleogels were evaluated by polarized light microscopy, Fourier transform infrared spectroscopy, differential scanning calorimetry, X-ray diffraction, texture and rheological analysis. And the lipid digestion and oxidative stability of the macadamia oil were determined by pH titration and accelerated oxidation test, respectively. The results showed that the hardness, oil binding capacity, and thermal stability of the oleogels increased with increasing MG concentration, which was attributed to the formation of a network of MG crystals held together by van der Waals interactions and hydrogen bonds. Rheological analysis indicated that all the oleogels exhibited a thermally reversible solid-to-liquid transition and viscoelastic behavior at ambient temperatures. Moreover, the formation of oleogels increased fatty acid release during in vitro lipid digestion and improved the oxidative stability of the macadamia oil. In addition, the potential application of these oleogels as replacements for saturated fats in foods was demonstrated by creating a chocolate product where the cocoa butter was replaced with macadamia oil-based oleogels with a high degree of unsaturation. These results can provide guidance for the preparation of macadamia oil-based oleogels, which may increase their application in foods.
Collapse
Affiliation(s)
- Xixiang Shuai
- South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | | | - Qin Geng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Taotao Dai
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| | - Roger Ruan
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Liqing Du
- South Subtropical Crop Research Institute, China Academy of Tropical Agricultural Sciences, Zhanjiang 524091, China.
| | - Yuhuan Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jun Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
| |
Collapse
|
3
|
Tanislav AE, Pușcaș A, Mureșan V, Mudura E. The oxidative quality of bi-, oleo- and emulgels and their bioactives molecules delivery. Crit Rev Food Sci Nutr 2023:1-27. [PMID: 37158188 DOI: 10.1080/10408398.2023.2207206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
During recent years, the applicability of bi-, oleo- and emulgels has been widely studied, proving several advantages as compared to conventional fats, such as increasing the unsaturated fat content of products and being more sustainable for temperate regions as compared to tropical fats. Moreover, these alternative fat systems improve the nutritional profile, increase the bioavailability of bioactive compounds, and can be used as preservation films and markers for the inactivation of pathogens, while in 3D printing facilitate the obtaining of superior food products. Furthermore, bi-, oleo- and emulgels offer food industries efficient, innovative, and sustainable alternatives to animal fats, shortenings, margarine, palm and coconut oil due to the nutritional improvements. According to recent studies, gels can be used as ingredients for the total or partial replacement of saturated and trans fats in the meat, bakery and pastry industry. The evaluation of the oxidative quality of this gelled systems is significant because the production process involves the use of heat treatments and continuous stirring where large amounts of air can be incorporated. The aim of this literature review is to provide a synthesis of studies to better understand the interaction of components and to identify future improvements that can be applied in oil gelling technology. Generally, higher temperatures used in obtaining polymeric gels, lead to more oxidation compounds, while a higher concentration of structuring agents leads to a better protection against oxidation. Due to the gel network ability to function as a barrier against oxidation factors, gelled matrices are able to provide superior protection for the bioactive compounds. The release percentage of bioactive molecules can be regulated by formulating the gel matrix (type and concentration of structuring agents and type of oil). In terms of food products, future research may include the use of antioxidants to improve the oxidative stability of the reformulated products.
Collapse
Affiliation(s)
- Anda Elena Tanislav
- Food Engineering Department, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Faculty of Food Science and Technology, Cluj-Napoca, Romania
| | - Andreea Pușcaș
- Food Engineering Department, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Faculty of Food Science and Technology, Cluj-Napoca, Romania
| | - Vlad Mureșan
- Food Engineering Department, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Faculty of Food Science and Technology, Cluj-Napoca, Romania
| | - Elena Mudura
- Food Engineering Department, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Faculty of Food Science and Technology, Cluj-Napoca, Romania
| |
Collapse
|
4
|
Suriaini N, Arpi N, Syamsuddin Y, Supardan MD. Characteristics of palm oil-based oleogel and its potency as a shortening replacer. SOUTH AFRICAN JOURNAL OF CHEMICAL ENGINEERING 2022. [DOI: 10.1016/j.sajce.2022.11.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
|
5
|
Recent advances in fabrication of food grade oleogels: structuring methods, functional properties and technical feasibility in food products. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2022. [DOI: 10.1007/s11694-022-01538-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
6
|
Palla CA, Dominguez M, Carrín ME. An overview of structure engineering to tailor the functionality of monoglyceride oleogels. Compr Rev Food Sci Food Saf 2022; 21:2587-2614. [DOI: 10.1111/1541-4337.12930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/07/2022] [Accepted: 02/02/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Camila A. Palla
- Departamento de Ingeniería Química Universidad Nacional del Sur (UNS) Bahía Blanca Argentina
- Planta Piloto de Ingeniería Química ‐ PLAPIQUI (UNS‐CONICET) Bahía Blanca Argentina
| | - Martina Dominguez
- Planta Piloto de Ingeniería Química ‐ PLAPIQUI (UNS‐CONICET) Bahía Blanca Argentina
| | - María Elena Carrín
- Departamento de Ingeniería Química Universidad Nacional del Sur (UNS) Bahía Blanca Argentina
- Planta Piloto de Ingeniería Química ‐ PLAPIQUI (UNS‐CONICET) Bahía Blanca Argentina
| |
Collapse
|
7
|
Li L, Liu G, Bogojevic O, Pedersen JN, Guo Z. Edible oleogels as solid fat alternatives: Composition and oleogelation mechanism implications. Compr Rev Food Sci Food Saf 2022; 21:2077-2104. [DOI: 10.1111/1541-4337.12928] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 01/05/2022] [Accepted: 01/26/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Linlin Li
- School of Food Science and Engineering South China University of Technology Guangzhou China
- Department of Biological and Chemical Engineering, Faculty of Technical Science Aarhus University Aarhus Denmark
| | - Guoqin Liu
- School of Food Science and Engineering South China University of Technology Guangzhou China
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Products Safety South China University of Technology Guangzhou China
| | - Oliver Bogojevic
- Department of Biological and Chemical Engineering, Faculty of Technical Science Aarhus University Aarhus Denmark
| | - Jacob Nedergaard Pedersen
- Department of Biological and Chemical Engineering, Faculty of Technical Science Aarhus University Aarhus Denmark
| | - Zheng Guo
- Department of Biological and Chemical Engineering, Faculty of Technical Science Aarhus University Aarhus Denmark
| |
Collapse
|
8
|
Study of oleogel as a frying medium for deep-fried chicken. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2021. [DOI: 10.1007/s11694-021-01237-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
9
|
Vélez-Erazo EM, Bosqui K, Rabelo RS, Hubinger MD. Effect of pH and Pea Protein: Xanthan Gum Ratio on Emulsions with High Oil Content and High Internal Phase Emulsion Formation. Molecules 2021; 26:5646. [PMID: 34577117 PMCID: PMC8469751 DOI: 10.3390/molecules26185646] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 09/01/2021] [Accepted: 09/14/2021] [Indexed: 11/28/2022] Open
Abstract
Electrostatic interaction between protein and polysaccharides could influence structured liquid oil stability when emulsification is used for this purpose. The objective of this work was to structure sunflower oil forming emulsions and High Internal Phase Emulsions (HIPEs) using pea protein (PP) and xanthan gum (XG) as a stabilizer, promoting or not their electrostatic attraction. The 60/40 oil-in-water emulsions were made varying the pH (3, 5, and 7) and PP:XG ratio (4:1, 8:1, and 12:1). To form HIPEs, samples were oven-dried and homogenized. The higher the pH, the smaller the droplet size (Emulsions: 15.60-43.96 µm and HIPEs: 8.74-20.38 µm) and the oil release after 9 weeks of storage at 5 °C and 25 °C (oil loss < 8%). All systems had weak gel-like behavior, however, the values of viscoelastic properties (G' and G″) increased with the increment of PP:XG ratio. Stable emulsions were obtained at pHs 5 and 7 in all PP:XG ratios, and at pH 3 in the ratio 4:1. Stable HIPEs were obtained at pH 7 in the ratios PP:XG 4:1, 8:1, and 12:1, and at pH 5 at PP:XG ratio 4:1. All these systems presented different characteristics that could be exploited for their application as fat substitutes.
Collapse
Affiliation(s)
- Eliana Marcela Vélez-Erazo
- Department of Food Engineering and Technology, School of Food Engineering, University of Campinas, Monteiro Lobato Street, 80, Campinas 13083-862, Brazil; (K.B.); (M.D.H.)
| | - Karina Bosqui
- Department of Food Engineering and Technology, School of Food Engineering, University of Campinas, Monteiro Lobato Street, 80, Campinas 13083-862, Brazil; (K.B.); (M.D.H.)
| | - Renata S. Rabelo
- Brazilian Synchrotron Light Laboratory (LNLS), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas 13083-970, Brazil;
| | - Miriam Dupas Hubinger
- Department of Food Engineering and Technology, School of Food Engineering, University of Campinas, Monteiro Lobato Street, 80, Campinas 13083-862, Brazil; (K.B.); (M.D.H.)
| |
Collapse
|
10
|
Ethanolic Extracts from Agro-Industrial Co-Products Enhance Oxidative Stability of Candelilla Wax or Celluloses Derivatives Oleogels. ACTA UNIVERSITATIS CIBINIENSIS. SERIES E: FOOD TECHNOLOGY 2021. [DOI: 10.2478/aucft-2021-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Abstract
Ethanol oleoresins obtained from orange peel, pea pod, or pomegranate peel were employed to enrich soybean oil before elaborating two types of oleogels, one made with candelilla wax, another made with a mixture of celluloses derivatives, in order to determine their effect on oleogel oxidative stability. Orange peel oleoresin obtained a higher amount of polyphenols as catechol acid equivalent (9.09 meq/g), as compared to pea pod oleoresin or pomegranate peel (8.80 and 8.55, respectively), although pomegranate peel presented the higher TEAC (1.67, twice than the other samples). Oleogels elaborated with celluloses were presented better oxidative stability (oxidative rancidity and peroxide index) as compared to samples elaborated with candelilla wax, since waxes minor constituents employed as oleogelators could promote prooxidant activity. Samples with pomegranate oleoresin presented enhanced oxidative stability. Candelilla wax has a more marked effect on the oleogels thermal properties of due to their influence on fatty acids crystallization, because in celluloses oleogels the mechanism of gelation does not imply the formation of a highly ordered secondary structure. This finding opens the possibility to, on one hand, use oleoresins to enhance the oxidative stability of oleogels; and on the other hand, to select the oleogelator, waxes, or celluloses, based on thermal properties and other aspects, depending on the further application of oleogel thinking in oleogel thermoreversible capacity.
Collapse
|
11
|
Pușcaș A, Mureșan V, Muste S. Application of Analytical Methods for the Comprehensive Analysis of Oleogels-A Review. Polymers (Basel) 2021; 13:polym13121934. [PMID: 34200945 PMCID: PMC8230493 DOI: 10.3390/polym13121934] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 06/06/2021] [Accepted: 06/08/2021] [Indexed: 11/16/2022] Open
Abstract
Numerous empirical studies have already been conducted on the innovative fat-replacing system defined as oleogel, creating a real urge for setting up a framework for future research, rather than conducting studies with arbitrary methods. This study re-evaluates the utility of some analyses and states some conclusions in order to eliminate the reluctance of food processors and consumers towards the utilization of oleogels as ingredients. The review presents extensively the methods applied for the characterization of various oleogels, while highlighting their addressability or inconveniences. The discussed methods were documented from the research published in the last five years. A classification of the methods is proposed based on their aims or the utility of the results, which either describe the nano-structure and the network formation, the quality of the resulting oleogel or its suitability as food ingredient or other edible purposes. The general conclusions drawn for some classes of oleogels were also revisited, in order to ease the understanding of the oleogel behaviour, to encourage innovative research approaches and to stimulate the progress in the state of art of knowledge.
Collapse
|
12
|
Ewens H, Metilli L, Simone E. Analysis of the effect of recent reformulation strategies on the crystallization behaviour of cocoa butter and the structural properties of chocolate. Curr Res Food Sci 2021; 4:105-114. [PMID: 33748777 PMCID: PMC7957023 DOI: 10.1016/j.crfs.2021.02.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 11/28/2022] Open
Abstract
Chocolate is a complex soft material characterized by solid particles (cocoa powder, milk solid particles and sugar crystals) dispersed in a crystallized fat matrix mostly composed of cocoa butter (CB). Important chocolate properties such as snap, and visual appearance are strongly dependent on the internal molecular arrangement (polymorph), size and shape, as well as the spatial distribution of CB crystals within the chocolate mix. In recent years confectionary companies have put increasing effort in developing novel chocolate recipes to improve the nutritional profile of chocolate products (e.g., by reducing the amount of high saturated fat and sugar content) and to counteract the increasing price of cocoa butter as well as sustainability issues related to some chocolate ingredients. Different reformulation strategies can dramatically affect the crystallization thermodynamic and kinetic behaviour of cocoa butter; therefore, affecting the structural and sensorial properties of chocolate. In this review we analyse how different reformulation strategies affect the crystallization behaviour of cocoa butter and, hence, the structural and sensorial properties of chocolate. In particular, this work discusses the effect of: (1) CB replacement with emulsions, hydrogels, oleogels and oleofoams; (2) CB dilution with limonene or cocoa butter equivalents; (3) replacement or reduction of the amount of sugar and milk in chocolate. We found that there is certainly potential for successful novel alternative chocolate products with controlled crystalline properties; however, further research is still needed to ensure sensory acceptance and reasonable shelf-life of these novel products.
Collapse
Affiliation(s)
- H. Ewens
- School of Food Science and Nutrition, Food Colloids and Bioprocessing Group, University of Leeds, Leeds, United Kingdom
| | - L. Metilli
- School of Food Science and Nutrition, Food Colloids and Bioprocessing Group, University of Leeds, Leeds, United Kingdom
| | - E. Simone
- School of Food Science and Nutrition, Food Colloids and Bioprocessing Group, University of Leeds, Leeds, United Kingdom
| |
Collapse
|
13
|
Pan J, Tang L, Dong Q, Li Y, Zhang H. Effect of oleogelation on physical properties and oxidative stability of camellia oil-based oleogels and oleogel emulsions. Food Res Int 2020; 140:110057. [PMID: 33648281 DOI: 10.1016/j.foodres.2020.110057] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 12/07/2020] [Accepted: 12/18/2020] [Indexed: 02/07/2023]
Abstract
In this work, the camellia oil-based oleogels and O/W oleogel emulsions were prepared with glycerol monolaurate (GML) as an oleogelator, which had a critical gelation concentration of 3 wt%. Results showed that with the increasing GML concentration, a more densely needle-like morphology was formed by the network of GML crystals within the oil, presenting the enhanced thermal stability due to the occurrence of van der Waals interactions and intermolecular hydrogen bonds. In turn, a more compact three-dimensional network was obtained in the emulsions with a larger droplet size, leading to a transition from a predominately elastic to viscous state. Moreover, a lower oxidation rate was observed by the POV and TBARS values as a function of storage time in either the oleogels or oleogel emulsions, indicating a better oxidative stability. These results contribute to a better understanding of oleogelation in camellia oil-based oleogels and oleogel emulsions for formulating food, pharmaceutical and person care products with desired physical properties and oxidative stability.
Collapse
Affiliation(s)
- Jingjing Pan
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Lirong Tang
- Hangzhou Qiandaohu Tianxin Co., Ltd, Hangzhou 311700, China
| | - Quanxi Dong
- Hangzhou Qiandaohu Tianxin Co., Ltd, Hangzhou 311700, China
| | - Yang Li
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China
| | - Hui Zhang
- College of Biosystems Engineering and Food Science, Zhejiang Key Laboratory for Agro-Food Processing, Zhejiang University, Hangzhou 310058, China; Ningbo Research Institute, Zhejiang University, Ningbo 315100, China.
| |
Collapse
|
14
|
Feichtinger A, Scholten E. Preparation of Protein Oleogels: Effect on Structure and Functionality. Foods 2020; 9:E1745. [PMID: 33256014 PMCID: PMC7761084 DOI: 10.3390/foods9121745] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Revised: 11/17/2020] [Accepted: 11/24/2020] [Indexed: 12/13/2022] Open
Abstract
Among available structuring agents that have been used to provide solid properties to liquid oils, protein is a more recent candidate. Due to their nutritional value and high consumer acceptance, proteins are of special interest for the preparation of edible oleogels as an alternative for solid fats. Whereas the field of protein oleogelation is still rather new and just starts unfolding, several preparation methods have been demonstrated to be suitable for protein oleogel preparation. However, there is limited knowledge regarding the link between microstructural properties of the gels and macroscopic rheological properties, and the potential of such protein-based oleogels as a fat replacer in food products. In this review, we therefore provide an overview of various protein oleogel preparation methods and the resulting gel microstructures. Based on the different structures, we discuss how the rheological properties can be modified for the different types of protein oleogels. Finally, we consider the suitability of the different preparation methods regarding potential applications on industrial scale, and provide a short summary of the current state of knowledge regarding the behavior of protein oleogels as a fat replacer in food products.
Collapse
Affiliation(s)
| | - Elke Scholten
- Physics and Physical Chemistry of Foods, Wageningen University & Research, P.O. Box 17, 6700 AA Wageningen, The Netherlands;
| |
Collapse
|
15
|
Magri A, Petriccione M, Cerqueira MA, Gutiérrez TJ. Self-assembled lipids for food applications: A review. Adv Colloid Interface Sci 2020; 285:102279. [PMID: 33070103 DOI: 10.1016/j.cis.2020.102279] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023]
Abstract
Lipids play an important role in human nutrition. Several foodstuffs can be manufactured from the simple, compound and derived lipids. In particular, the use of self-assembled lipids (SLs, e.g. self-assembled L-α-lecithin) has brought great attention for the development of tailored, tuned and targeted colloidal structures loading degradation-sensitive substances with valuable antimicrobial, antioxidant and nutraceutical properties for food applications. For example, polyunsaturated fatty acids (PUFAs) and essential oils can be protected from degradation, thus improving their bioavailability in general terms in consumers. From a nanotechnological point of view, SLs allow the development of advanced and multifaceted architectures, in which each molecule of them are used as building blocks to obtain designed and ordered structures. It is important to note before beginning this review, that simple and compound lipids are the main SLs, while essential fatty acids and derived lipids in general have been considered by many research groups as the bulk loaded substances within several structures from self-assembled carbohydrates, proteins and lipids. However, this review paper is addressed on the analysis of the lipid-lipid self-assembly. Lipids can be self-assembled into various structures (micelles, vesicular systems, lyotropic liquid crystals, oleogels and films) to be used in different food applications: coatings, controlled and sustained release materials, emulsions, functional foods, etc. SLs can be obtained via non-covalent chemical interactions, primarily by hydrogen, hydrophilic and ionic bonding, which are influenced by the conditions of ionic strength, pH, temperature, among others. This manuscript aims to give an analysis of the specific state-of-the-art of SLs for food applications, based primarily on the literature reported in the past five years.
Collapse
|
16
|
Gao Y, Wu S. Development and evaluation of a novel oleogel system based on starch-water-wax-oil. Food Funct 2020; 11:7727-7735. [PMID: 32789410 DOI: 10.1039/d0fo01785j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel oleogel system was developed, and its characteristics and properties were investigated. The results indicate that a low-cost, low-fat and low hardness oleogel product was formed by potato starch, candelilla wax, oil, and distilled water. Specifically, the content of potato starch and candelilla wax in the oleogel system was 5 wt%. A potato starch/candelilla wax ratio from 1.22 to 5.67 led to the formation of a type II starch-lipid oleogel system, and the content of distilled water was 45 times the starch content. All the above-mentioned information demonstrated that starch/wax-based oleogels are a typical lipid system. They can reduce the content of wax and oil in oleogel systems, form oleogel products with low hardness values and exhibit great potential in the field of low-fat food and low-cost food industrial applications.
Collapse
Affiliation(s)
- Yuan Gao
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. and Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, 800 Dongchuan Road, Shanghai 200240, China
| | - Shimin Wu
- Department of Food Science and Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China. and Key Laboratory of Urban Agriculture (South), Ministry of Agriculture, 800 Dongchuan Road, Shanghai 200240, China
| |
Collapse
|