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Qin S, Li R, McClements DJ, Chen Y, Duan Z, Chen M, Dai Y, Liao L, Zhou W, Li J. Macronutrient digestion and polyphenol bioaccessibility in oat milk tea products: an in vitro gastrointestinal tract study. Food Funct 2024. [PMID: 38915263 DOI: 10.1039/d4fo01439a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
People are increasingly preparing milk tea using plant-based milks rather than cow's milk, e.g., vegans, those with lactose intolerance, and those with flavor preferences. However, adding plant-based milks to tea may impact the digestion, release, and bioaccessibility of nutrients and nutraceuticals in both the tea and milk. In this study, oat milk tea model systems (OMTMSs) containing different fat and tea polyphenol concentrations were used to explore the impact of tea on macronutrient digestion in oat milk, as well as the impact of oat milk matrix on the polyphenol bioaccessibility in the tea. An in vitro gastrointestinal model that mimics the mouth, stomach, and small intestine was used. Tea polyphenols (>0.25%) significantly reduced the glucose and free fatty acids released from oat milk after intestinal digestion. Tea polyphenols (>0.10%) also inhibited protein digestion in oat milk during gastric digestion but not during intestinal digestion. The bioaccessibility of the polyphenols in the tea depended on the fat content of oat milk, being higher for medium-fat (3.0%) and high-fat (5.8%) oat milk than low-fat (1.5%) oat milk. Liquid chromatography-tandem mass spectrometry (UPLC-ESI-MS/MS) analysis showed that lipids improved the tea polyphenol bioaccessibility by influencing the release of flavonoids and phenolic acids from the food matrices. These results provide important information about the impact of tea on the gastrointestinal fate of oat milk, and vice versa, which may be important for enhancing the healthiness of plant-based beverages.
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Affiliation(s)
- Sirui Qin
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, Hubei, 430070, China
| | - Ruyi Li
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | | | - Ying Chen
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
| | - Zhihao Duan
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
| | - Mianhong Chen
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
| | - Yaping Dai
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
| | - Liangkun Liao
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
| | - Wei Zhou
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
| | - Jihua Li
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture and Rural Affairs, Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524001, China.
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2
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Qazi HJ, Ye A, Acevedo-Fani A, Singh H. Delivery of encapsulated bioactive compounds within food matrices to the digestive tract: recent trends and future perspectives. Crit Rev Food Sci Nutr 2024:1-22. [PMID: 38821104 DOI: 10.1080/10408398.2024.2353366] [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: 06/02/2024]
Abstract
Encapsulation technologies have achieved encouraging results improving the stability, bioaccessibility and absorption of bioactive compounds post-consumption. There is a bulk of published research on the gastrointestinal behavior of encapsulated bioactive food materials alone using in vitro and in vivo digestion models, but an aspect often overlooked is the impact of the food structure, which is much more complex to unravel and still not well understood. This review focuses on discussing the recent findings in the application of encapsulated bioactive components in fabricated food matrices. Studies have suggested that the integration of encapsulated bioactive compounds has been proven to have an impact on the physicochemical characteristics of the finished product in addition to the protective effect of encapsulation on the fortified bioactive compound. These products containing bioactive compounds undergo further structural reorganization during digestion, impacting the release and emptying rates of fortified bioactive compounds. Thus, by manipulation of various food structures and matrices, the release and delivery of these bioactive compounds can be altered. This knowledge provides new opportunities for designing specialized foods for specific populations.
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Affiliation(s)
- Haroon Jamshaid Qazi
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Department of Food Science and Human Nutrition, University of Veterinary and Animal Sciences, Syed Abdul Qadir Jillani Road, Lahore, Punjab, Pakistan
| | - Aiqian Ye
- Riddet Institute, Massey University, Palmerston North, New Zealand
| | | | - Harjinder Singh
- Riddet Institute, Massey University, Palmerston North, New Zealand
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3
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Li S, Ye A, Cui J, Zhang Y, Ware L, Miller JC, Abbotts-Holmes H, Roy NC, Singh H, McNabb W. Dynamic Gastrointestinal Digestion of Bovine, Caprine and Ovine Milk Reconstituted from Commercial Whole Milk Powders. Foods 2024; 13:1403. [PMID: 38731774 PMCID: PMC11083032 DOI: 10.3390/foods13091403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
The global dairy market has been increasingly diversified with more dairy product offerings of milk products from different animal species. Meanwhile, milk powders remain the main exported dairy product format due to their ease of transportation. In this work, we studied the structural changes, protein hydrolysis and nutrient delivery during dynamic gastric digestion and small intestinal digestion of cow, goat and sheep milk reconstituted from commercial whole milk powders. The results show that the reconstituted milks digest similarly to processed fresh milk. The digestion behaviors of the three reconstituted ruminant milks are broadly similar (gastric coagulation, kinetics of gastric emptying of protein and fat and the high digestibility in the small intestine) with some differences, which are likely contributed by the processing history of the milk powders. The delivery of individual amino acids to the small intestine differed between the early and late stages of gastric digestion, which were primarily affected by the abundance of amino acids in caseins and whey proteins but also by the difference between milk types associated with their gastric coagulation behaviors. This work showed that powdered milk is similar to fresh processed milk in digestion behavior, and the inherent differences between ruminant milks can be modified by processing treatments.
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Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
| | - Jian Cui
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
| | - Yu Zhang
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
| | - Lara Ware
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (L.W.)
| | - Jody C. Miller
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (L.W.)
| | - Holly Abbotts-Holmes
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (L.W.)
| | - Nicole C. Roy
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
- Department of Human Nutrition, University of Otago, Dunedin 9054, New Zealand; (L.W.)
- High-Value Nutrition National Science Challenge, Liggins Institute, University of Auckland, Auckland 1023, New Zealand
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
| | - Warren McNabb
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand (H.S.)
- High-Value Nutrition National Science Challenge, Liggins Institute, University of Auckland, Auckland 1023, New Zealand
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4
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Song X, Wang X, Yang M, Acevedo-Fani A, Singh H, Ye A. Dynamic In Vitro Gastric Digestion Behaviour of Commercial Infant Formulae Made with Cow, Goat and Sheep Milk. Foods 2024; 13:1286. [PMID: 38731657 PMCID: PMC11083146 DOI: 10.3390/foods13091286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 05/13/2024] Open
Abstract
There are a wide range of commercial infant formulae available on the market. These are made using milk from different species, such as goat, sheep, and cow. The different protein compositions of these milks and the process used during infant-formulae manufacture, such as heat treatment, may impact the digestion of nutrients. This study compared the effect of protein composition and heat treatment on the in vitro gastric digestion behaviour of commercial infant formulae made with cow, goat, and sheep milk using a dynamic infant human gastric simulator (IHGS). During the simulated dynamic gastric digestion, the goat milk infant formula (GIF) showed earlier signs of aggregate formation compared to cow milk infant formula (CIF) and sheep milk infant formula (SIF). In addition, the microstructures of GIF chyme showed fragmented and porous structures. On the contrary, CIF formed dense protein networks that trapped oil droplets, whereas SIF exhibited a microstructure of smooth oil droplets surrounded by fewer protein networks. The different aggregation behaviours and aggregate structures of the three infant-formulae chyme were related to their different protein compositions, especially the different casein compositions. Furthermore, the open fragile structure of GIF aggregates provided easier access to pepsin, allowing it to hydrolyse protein. The results from the present study provided some information to assist in understanding the coagulation and digestion behaviours of commercial infant formulae made from different species of milk.
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Affiliation(s)
| | | | | | | | | | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand; (X.S.); (M.Y.); (A.A.-F.); (H.S.)
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5
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Huppertz T, Shkembi B, Brader L, Geurts J. Dairy Matrix Effects: Physicochemical Properties Underlying a Multifaceted Paradigm. Nutrients 2024; 16:943. [PMID: 38612977 PMCID: PMC11013626 DOI: 10.3390/nu16070943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
When food products are often considered only as a source of individual nutrients or a collection of nutrients, this overlooks the importance of interactions between nutrients, but also interactions between nutrients and other constituents of food, i.e., the product matrix. This product matrix, which can be defined as 'The components of the product, their interactions, their structural organization within the product and the resultant physicochemical properties of the product', plays a critical role in determining important product properties, such as product stability, sensory properties and nutritional and health outcomes. Such matrix effects can be defined as 'the functional outcome of specific component(s) as part of a specific product matrix'. In this article, dairy matrix effects are reviewed, with particular emphasis on the nutrition and health impact of dairy products. Such matrix effects are critical in explaining many effects of milk and dairy products on human nutrition and health that cannot be explained solely based on nutrient composition. Examples hereof include the low glycemic responses of milk and dairy products, the positive impact on dental health, the controlled amino acid absorption and the absence of CVD risk despite the presence of saturated fatty acids. Particularly, the changes occurring in the stomach, including, e.g., coagulation of casein micelles and creaming of aggregated fat globules, play a critical role in determining the kinetics of nutrient release and absorption.
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Affiliation(s)
- Thom Huppertz
- Food Quality & Design Group, Wageningen University & Research, 6808 WG Wageningen, The Netherlands
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands;
| | - Blerina Shkembi
- Food Quality & Design Group, Wageningen University & Research, 6808 WG Wageningen, The Netherlands
| | - Lea Brader
- Arla Innovation Center, 8200 Aarhus, Denmark
| | - Jan Geurts
- FrieslandCampina, 3818 LE Amersfoort, The Netherlands;
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Jiang H, Xu Y, Chen G, Liu T, Yang Y, Mao X. Digestive properties and peptide profiles exhibited significant differences between skim camel milk and bovine milk powder after static in vitro simulated infant gastrointestinal digestion. Food Res Int 2024; 178:113860. [PMID: 38309893 DOI: 10.1016/j.foodres.2023.113860] [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: 10/12/2023] [Revised: 12/09/2023] [Accepted: 12/14/2023] [Indexed: 02/05/2024]
Abstract
This study aims to analyze the differences in digestion properties and peptide profiles between the skim camel and bovine milk powder after static in vitro simulated infant gastrointestinal digestion. The hydrolysis degree of camel milk proteins exceeded by 13.18% that of bovine milk. The concentration and release rate of free amino groups in the camel milk digesta was higher than that of bovine milk powder, which was likely due to the higher β-/αs-casein ratio and larger casein micelle size in camel milk. Camel milk powder presented higher β-CN coverage and comparatively shorter bioactive peptides compared to bovine milk powder. The anti-inflammatory peptide KVLPVPQ displayed the highest abundance in camel milk powder. Outcomes of this study showed that camel milk proteins possessed superior digestibility and unique peptides, which outlined the potential nutritional implications of camel milk for infants.
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Affiliation(s)
- Hui Jiang
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yunxuan Xu
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Gangliang Chen
- Xinjiang Wangyuan Camel Milk Industrial Co., Ltd., Altay 836400, China
| | - Tianchong Liu
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Yitong Yang
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Xueying Mao
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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7
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Loveday SM. Protein digestion and absorption: the influence of food processing. Nutr Res Rev 2023; 36:544-559. [PMID: 36522674 DOI: 10.1017/s0954422422000245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The rates of dietary protein digestion and absorption can be significantly increased or decreased by food processing treatments such as heating, gelling and enzymatic hydrolysis, with subsequent metabolic impacts, e.g. on muscle synthesis and glucose homeostasis.This review examines in vivo evidence that industrial and domestic food processing modify the kinetics of amino acid release and absorption following a protein-rich meal. It focuses on studies that used compositionally-matched test meals processed in different ways.Food processing at extremely high temperature at alkaline pH and/or in the presence of reducing sugars can modify amino acid sidechains, leading to loss of bioavailability. Some protein-rich food ingredients are deliberately aggregated, gelled or hydrolysed during manufacture. Hydrolysis accelerates protein digestion/absorption and increases splanchnic utilisation. Aggregation and gelation may slow or accelerate proteolysis in the gut, depending on the aggregate/gel microstructure.Milk, beef and eggs are heat processed prior to consumption to eliminate pathogens and improve palatability. The temperature and time of heating affect protein digestion and absorption rates, and effects are sometimes non-linear. In light of a dietary transition away from animal proteins, more research is needed on how food processing affects digestion and absorption of non-animal proteins.Food processing modifies the microstructure of protein-rich foods, and thereby alters protein digestion and absorption kinetics in the stomach and small intestine. Exploiting this principle to optimise metabolic outcomes requires more human clinical trials in which amino acid absorption rates are measured and food microstructure is explicitly considered, measured and manipulated.
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Affiliation(s)
- Simon M Loveday
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore138673, Singapore
- Riddet Institute Centre of Research Excellence, Massey University, Private Bag 11 222, Palmerston North4442, New Zealand
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8
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Du Q, Tu M, Liu J, Ding Y, Zeng X, Pan D. Plant-based meat analogs and fat substitutes, structuring technology and protein digestion: A review. Food Res Int 2023; 170:112959. [PMID: 37316007 DOI: 10.1016/j.foodres.2023.112959] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/04/2023] [Accepted: 05/10/2023] [Indexed: 06/16/2023]
Abstract
There is currently an increasing trend in the consumption of meat analogs and fat substitutes due to the health hazards by excessive consumption of meat. Simulating the texture and mouthfeel of meat through structured plant-derived polymers has become a popular processing method. In this review, the mechanical structuring technology of plant polymers for completely replacing real meat is mainly introduced in this review, which mainly focuses on the parameters and principles of mechanical equipment for the production of vegan meat. The difference in composition between plant meat and real meat is mainly reflected in the protein, and particular attention should be paid to the digestive characteristics of plant meat protein in the gastrointestinal tract. Therefore, the differences in the protein digestibility properties of meat analogs and real meat is discussed in this review, focusing primarily on protein digestibility and peptide/amino acid composition of mechanically structured vegan meats. In terms of fat substitutes for meat products, the types of plant polymer colloidal systems used for meat fat substitutes is comprehensively introduced, including emulsion, hydrogel and oleogel.
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Affiliation(s)
- Qiwei Du
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical Science, Ningbo University, Ningbo 315211, China
| | - Maolin Tu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical Science, Ningbo University, Ningbo 315211, China
| | - Jianhua Liu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yuting Ding
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China
| | - Xiaoqun Zeng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical Science, Ningbo University, Ningbo 315211, China.
| | - Daodong Pan
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, Key Laboratory of Animal Protein Food Processing Technology of Zhejiang Province, College of Food and Pharmaceutical Science, Ningbo University, Ningbo 315211, China.
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Sadiq U, Shahid F, Gill H, Chandrapala J. The Release Behavior of Anthraquinones Encapsulated into Casein Micelles during In Vitro Digestion. Foods 2023; 12:2844. [PMID: 37569113 PMCID: PMC10418339 DOI: 10.3390/foods12152844] [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: 07/03/2023] [Revised: 07/25/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
The degradation of anthraquinones extracted from aloe vera plants can be prevented by encapsulating them in casein micelles (CMs). The oral, gastric, and intestinal digestion behavior of spray-dried microcapsules of casein micelles loaded with aloe vera-extracted anthraquinone powder (CMAQP), freeze-dried powder (CMFDP), and whole-leaf aloe vera gel (CMWLAG) obtained through ultrasonication was investigated. The results found that CMAQP and CMFDP dissolved slowly and coagulated into large curds during gastric digestion, improving the retention of anthraquinones in the digestive tract. In contrast, CMWLAG structure was destroyed and increased amounts of anthraquinones were released during oral and gastric digestion phases, indicating increased amounts of surface anthraquinones instead of the encapsulation of anthraquinones in the interior of CMs. The strong hydrophobic interactions protected anthraquinones within the core of CM for CMAQP and delayed diffusion. However, during SIF digestion, both CMAQP and CMFDP released significant amounts of anthraquinones, although CMAQP showed a much more controlled release for both aloin and aloe-emodin over SIF digestion time. The release behavior of anthraquinones from CM microcapsules was a function of the type of anthraquinone that was used to encapsulate. The present study provides insight into the release behavior of loaded bioactive compounds using food-grade CMs as the wall material during in vitro digestion and highlights the importance of the type of bioactive component form that will be encapsulated.
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Affiliation(s)
- Uzma Sadiq
- School of Science, RMIT University, Bundoora, Melbourne, VIC 3083, Australia; (U.S.); (H.G.)
| | - Fatima Shahid
- School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Harsharn Gill
- School of Science, RMIT University, Bundoora, Melbourne, VIC 3083, Australia; (U.S.); (H.G.)
| | - Jayani Chandrapala
- School of Science, RMIT University, Bundoora, Melbourne, VIC 3083, Australia; (U.S.); (H.G.)
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Zhao J, Wang S, Jiang D, Chen C, Tang J, Tomasevic I, Sun W. The influence of protein oxidation on structure, pepsin diffusion, and in vitro gastric digestion of SPI emulsion. Food Chem 2023; 428:136791. [PMID: 37429241 DOI: 10.1016/j.foodchem.2023.136791] [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: 11/28/2022] [Revised: 06/28/2023] [Accepted: 07/01/2023] [Indexed: 07/12/2023]
Abstract
The stability behaviors of oxidized SPI emulsions under in vitro gastric conditions and the effects of pepsin diffusion on the proteolysis of emulsions were investigated using a static gastric model and the fluorescence recovery after photobleaching method. Results showed that protein oxidation increased the particle size of droplets and decreased the viscoelasticity of the interfacial layer. Compared to the control group (82.81 m2/s), the pepsin diffusivity decreased to 68.52 m2/s (7LA + LOX group) due to the space hindrance of oil droplets. After gastric digestion, protein hydrolysates were re-absorbed on the oil-water interface and formed a thick layer, thereby decreasing the size of oil droplets and reducing the contents of free amino acids in gastric digesta. The protein oxidation may affect the adsorption of interfacial proteins and alter the distribution of droplets, decreasing pepsin diffusion and ultimately impairing the emulsion gastric digestion. And this should be considered in the design of emulsion as the controllable delivery system.
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Affiliation(s)
- Jie Zhao
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Shuaiqian Wang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Diandian Jiang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China
| | - Chong Chen
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China
| | - Jie Tang
- School of Food and Bio-engineering, Xihua University, Chengdu 610039, China; Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, Chengdu 610039, China
| | - Igor Tomasevic
- University of Belgrade, Faculty of Agriculture, Nemanjina 6, 11080 Belgrade, Serbia
| | - Weizheng Sun
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510641, China.
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11
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Wang X, Li W, Mahsa GC, Zhang C, Ma K, Rui X, Li W. Co-cultivation effects of Lactobacillus helveticus SNA12 and Kluveromyces marxiensis GY1 on the probiotic properties, flavor, and digestion in fermented milk. Food Res Int 2023; 169:112843. [PMID: 37254417 DOI: 10.1016/j.foodres.2023.112843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 04/03/2023] [Accepted: 04/12/2023] [Indexed: 06/01/2023]
Abstract
This study aimed to evaluate inoculating the lactic acid bacteria Lactobacillus helveticus SNA12 and the yeast Kluyveromyces marxiensis GY1 as starter cultures on milk fermentation. In this study, the probiotic properties of L. helveticus SNA12, K. marxiensis GY1 and co-culture of these two strains (L. helveticus SNA12-K. marxiensis GY1) were investigated, and the results showed that K. marxiensis GY1 had better gastrointestinal tolerance, aggregation, and cell adhesion properties than L. helveticus SNA12. After the co-cultivation of two strains, the presence of K. marxiensis GY1 significantly increased the gastrointestinal tolerance, aggregation, and adhesion characteristics of L. helveticus SNA12. In order to investigate the flavor changes, digestive characteristics, and antioxidant properties following co-cultivation fermentation, the optimal fermentation ratio of 8 %-2% (v/v) and fermentation temperature (37 °C) of L. helveticus SNA12-K. marxiensis GY1 were determined. The results of the electronic nose and electronic tongue showed that L. helveticus SNA12-K. marxiensis GY1 could increase the aroma components of fermented milk, such as terpenes and aromatic substances. Meanwhile, dynamic in vitro rat stomach-duodenum model was used to analyse the changes in the digestion of proteins and peptides (<10 kDa), and the results indicated that co-cultivation fermented milk could be digested faster compared to a single fermentation. Furthermore, the antioxidant capacity of co-cultivation fermented milk was higher than that of single fermentation.
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Affiliation(s)
- Xiaomeng Wang
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Wenpei Li
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Ghahvechi Chaeipeima Mahsa
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Changliang Zhang
- Jiangsu Biodep Biotechnology Co., Ltd., Jiangyin, Jiangsu 214400, PR China
| | - Kai Ma
- Jiangsu Biodep Biotechnology Co., Ltd., Jiangyin, Jiangsu 214400, PR China
| | - Xin Rui
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Wei Li
- Sanya Institute of Nanjing Agricultural University, College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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12
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Lamothe S, Britten M. Coagulation and proteolysis of high-protein milks in the gastric environment. J Dairy Sci 2023:S0022-0302(23)00319-3. [PMID: 37291035 DOI: 10.3168/jds.2022-22714] [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: 08/30/2022] [Accepted: 02/06/2023] [Indexed: 06/10/2023]
Abstract
Gastric digestion of 2 commercial ultrafiltered milks and milk enriched with skim milk powder (to simulate concentration by reverse osmosis) was investigated and compared with the digestion of nonconcentrated milk. Curd formation and proteolysis of high-protein milks in simulated gastric conditions were studied using oscillatory rheology, extrusion testing, and gel electrophoresis. The presence of pepsin in the gastric fluid triggered coagulation at pH >6 and the elastic modulus of gels from high-protein milks was ∼5 times larger than the gel from reference milk. Despite similar protein concentrations, the coagulum from milk enriched with skim milk powder showed higher resistance to shear deformation than the coagula from ultrafiltered milks. The gel structure was also more heterogeneous. During digestion, the degradation of coagula from high-protein milks was slowed down compared with the coagulum from reference milk, and intact milk proteins were still detected after 120 min. Differences in the digestion patterns of coagula from high-protein milks were observed and were associated with the proportion of minerals bound to caseins and the denaturation rate of whey proteins.
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Affiliation(s)
- Sophie Lamothe
- Saint-Hyacinthe Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Hyacinthe, Quebec, Canada, J2S 8E3
| | - Michel Britten
- Saint-Hyacinthe Research and Development Centre, Agriculture and Agri-Food Canada, Saint-Hyacinthe, Quebec, Canada, J2S 8E3.
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Lee S, Jo K, Jeong SKC, Choi YS, Jung S. Strategies for modulating the lipid digestion of emulsions in the gastrointestinal tract. Crit Rev Food Sci Nutr 2023:1-16. [PMID: 37267158 DOI: 10.1080/10408398.2023.2215873] [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: 06/04/2023]
Abstract
The structural changes in emulsion products can be used to control the bioavailability of fatty acids and lipophilic compounds. After ingestion, lipid droplets undergo breakdown and structural changes as they pass through the gastrointestinal tract. The oil-water interface plays a critical role in modulating the digestive behavior of lipid droplets because changes in the interfacial layer control the adsorption of lipase and bile salts and determine the overall rate and extent of lipid digestion. Therefore, lipid digestibility can be tuned by selecting the appropriate types and levels of stabilizers. The stabilizer can change the lipase accessibility and exposure of lipid substrates, resulting in variable digestion rates. However, emulsified lipids are not only added to food matrixes but are also co-ingested from other dietary components. Therefore, overall consumption behaviors can affect the digestion rate and digestibility of emulsified lipids. Although designing an emulsion structure is challenging, controlling lipid digestion can improve the health benefits of products. Therefore, a thorough understanding of the process of emulsified lipid digestion is required to develop food products that enable specific physiological responses. The targeted or delayed release of lipophilic molecules and fatty acids through emulsion systems has significant applications in healthcare and pharmaceuticals.
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Affiliation(s)
- Seonmin Lee
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Kyung Jo
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Seul-Ki-Chan Jeong
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
| | - Yun-Sang Choi
- Research Group of Food Processing, Korea Food Research Institute, Wanju, Korea
| | - Samooel Jung
- Division of Animal and Dairy Science, Chungnam National University, Daejeon, Korea
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14
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Chen Y, Rooney H, Dold C, Bavaro S, Tobin J, Callanan MJ, Brodkorb A, Lawlor PG, Giblin L. Membrane filtration processing of infant milk formula alters protein digestion in young pigs. Food Res Int 2023; 166:112577. [PMID: 36914340 DOI: 10.1016/j.foodres.2023.112577] [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: 08/09/2022] [Revised: 01/05/2023] [Accepted: 02/03/2023] [Indexed: 02/11/2023]
Abstract
Reducing heat treatment (HT) during processing of infant milk formula (IMF) is desirable to produce a product that more closely resembles breast milk. By employing membrane filtration (MEM), we produced an IMF (60:40 whey to casein ratio) at pilot scale (250 kg). MEM-IMF had a significantly higher content of native whey (59.9 %) compared to HT-IMF (4.5 %) (p < 0.001). Pigs, at 28 days old, were blocked by sex, weight and litter origin and assigned to one of two treatments (n = 14/treatment): (1) starter diet containing 35 % of HT-IMF powder or (2) starter diet containing 35 % of MEM-IMF powder for 28 days. Body weight and feed intake were recorded weekly. Pigs at day 28 post weaning were sacrificed 180 min after their final feeding, for the collection of gastric, duodenal, jejunum and ileal contents (n = 10/treatment). MEM-IMF diet resulted in more water-soluble proteins and higher levels of protein hydrolysis in the digesta at various gut locations compared to HT-IMF (p < 0.05). In the jejunal digesta, a higher concentration of free amino acids were present post MEM-IMF consumption (247 ± 15 µmol g-1 of protein in digesta) compared to HT-IMF (205 ± 21 µmol g-1 of protein). Overall, average daily weight gain, average dairy feed intake and feed conversion efficiency were similar for pigs fed either MEM-IMF or HT-IMF diets, but differences and trends to difference of these indicators were determined in particular intervention periods. In conclusion, reducing heat treatment during processing of IMF influenced protein digestion and revealed minor effects on growth parameters providing in vivo evidence that babies who are fed with IMF processed by MEM are likely to have different protein digestion kinetics but minimal effect on overall growth trajectories as babies fed IMF processed by traditional thermal processing.
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Affiliation(s)
- Yihong Chen
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland; Department of Biological Sciences, Munster Technological University, T12 P928 Co. Cork, Ireland
| | - Hazel Rooney
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland
| | - Cathal Dold
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland
| | - Simona Bavaro
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland; ISPA-CNR, Institute of Sciences of Food Production of National Research Council of Italy, Via Amendola, 22/O, 70126 Bari, Italy
| | - John Tobin
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland
| | - Michael J Callanan
- Department of Biological Sciences, Munster Technological University, T12 P928 Co. Cork, Ireland
| | - André Brodkorb
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland
| | - Peadar G Lawlor
- Teagasc Pig Development Department, Animal and Grassland Research and Innovation Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland.
| | - Linda Giblin
- Teagasc Food Research Centre, Moorepark, Fermoy, P61 C996 Co. Cork, Ireland
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15
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Li S, Delger M, Dave A, Singh H, Ye A. Acid and rennet gelation properties of sheep, goat, and cow milks: Effects of processing and seasonal variation. J Dairy Sci 2023; 106:1611-1625. [PMID: 36631324 DOI: 10.3168/jds.2022-22561] [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: 07/21/2022] [Accepted: 10/04/2022] [Indexed: 01/11/2023]
Abstract
Gelation is an important functional property of milk that enables the manufacture of various dairy products. This study investigated the acid (with glucono-δ-lactone) and rennet gelation properties of differently processed sheep, goat, and cow milks using small-amplitude oscillatory rheological tests. The impacts of ruminant species, milk processing (homogenization and heat treatments), seasonality, and their interactions were studied. Acid gelation properties were improved (higher gelation pH, shorter gelation time, and higher storage modulus (G') by intense heat treatment (95°C for 5 min) to comparable extents for sheep and cow milks, both better than those for goat milk. Goat milk produced weak acid gels with low G' (<100 Pa) despite improvements induced by heat treatments. Seasonality had a marked impact on the acid gelation properties of sheep milk. The acid gels of late-season sheep milk had a lower gelation pH, no maximum in tan δ following gel formation, and 70% lower G' values than those from other seasons. We propose the potential key role of a critical acid gelation pH that induces structural rearrangements in determining the viscoelastic properties of the final gels. For rennet-induced gelation, compared with cow milk, the processing treatments of the goat and sheep milks had much smaller impacts on their gelation properties. Intense heat treatment (95°C for 5 min) prolonged the rennet gelation time of homogenized cow milk by 8.6 min (74% increase) and reduced the G' of the rennet gels by 81 Pa (85% decrease). For sheep and goat milks, the same treatment altered the rennet gelation time by only less than 3 min and the G' of the rennet gels by less than 14 Pa. This difference may have been caused by the different physicochemical properties of the milks, such as differences in their colloidal stability, proportion of serum-phase caseins, and ionic calcium concentration. The seasonal variations in the gelation properties (both acid and rennet induced) of goat milk could be explained by the minor variation in its protein and fat contents. This study provides new perspectives and understandings of milk gelation by demonstrating the interactive effects among ruminant species, processing, and seasonality.
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Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
| | - Munkhzul Delger
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Anant Dave
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
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16
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Jiang W, Xiang W, Xu L, Yuan D, Gao Z, Hu B, Li Y, Wu Y. Fabrication, characterization, and emulsifying properties of hexadecyltrimethylammonium bromide complexed alginate microgel. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2023.108607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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17
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Impact of Flaxseed Gums on the Colloidal Changes and In Vitro Digestibility of Milk Proteins. Foods 2022; 11:foods11244096. [PMID: 36553838 PMCID: PMC9778069 DOI: 10.3390/foods11244096] [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: 11/15/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
Flaxseed (Linum usitatissimum L.) mucilage is one of the most studied plant seed gums in terms of its techno-functional and health-promoting properties. Nonetheless, the interplay of flaxseed gum (FG) with other food biopolymers, such as milk proteins, under in vitro digestion conditions remains underexplored. The aim of the present work was to investigate the colloidal interplay between flaxseed gum (golden or brown) and milk proteins (sodium caseinate or whey protein isolate) under simulated in vitro digestion conditions and its relationship with the attained in vitro protein digestibility. The presence of flaxseed gum in the milk protein food models and in the oral food boluses obtained was associated with the occurrence of segregative microphase separation. Flaxseed gum exhibited a prominent role in controlling the acid-mediated protein aggregation phenomena, particularly in the sodium caseinate gastric chymes. The addition of FG in the food models was associated with a higher amount of intact total caseins and β-lactoglobulin at the end of the gastric processing step. Monitoring of the intestinal processing step revealed a very advanced cleavage of the whey proteins (>98%) and caseins (>90%). The degree of the milk protein hydrolysis achieved at the end of the intestinal processing was significantly higher in the systems containing flaxseed gum (i.e., 59−62%) than their gum-free protein counterparts (i.e., 46−47%). It was postulated that the electrostatic milk protein complexation capacity and, to a lesser extent, the thickening effect of flaxseed gum influenced the in vitro digestibility of the milk proteins.
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18
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A basis for IgY-themed functional foods: digestion profile of oral yolk immunoglobulin (IgY) by INFOGEST static digestion model. Food Res Int 2022; 162:112167. [DOI: 10.1016/j.foodres.2022.112167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 11/10/2022] [Accepted: 11/15/2022] [Indexed: 11/21/2022]
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20
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Jie Y, Chen F. Progress in the Application of Food-Grade Emulsions. Foods 2022; 11:foods11182883. [PMID: 36141011 PMCID: PMC9498284 DOI: 10.3390/foods11182883] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/07/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
The detailed investigation of food-grade emulsions, which possess considerable structural and functional advantages, remains ongoing to enhance our understanding of these dispersion systems and to expand their application scope. This work reviews the applications of food-grade emulsions on the dispersed phase, interface structure, and macroscopic scales; further, it discusses the corresponding factors of influence, the selection and design of food dispersion systems, and the expansion of their application scope. Specifically, applications on the dispersed-phase scale mainly include delivery by soft matter carriers and auxiliary extraction/separation, while applications on the scale of the interface structure involve biphasic systems for enzymatic catalysis and systems that can influence substance digestion/absorption, washing, and disinfection. Future research on these scales should therefore focus on surface-active substances, real interface structure compositions, and the design of interface layers with antioxidant properties. By contrast, applications on the macroscopic scale mainly include the design of soft materials for structured food, in addition to various material applications and other emerging uses. In this case, future research should focus on the interactions between emulsion systems and food ingredients, the effects of food process engineering, safety, nutrition, and metabolism. Considering the ongoing research in this field, we believe that this review will be useful for researchers aiming to explore the applications of food-grade emulsions.
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Huang H, Lechniak D, Szumacher-Strabel M, Patra AK, Kozłowska M, Kolodziejski P, Gao M, Ślusarczyk S, Petrič D, Cieslak A. The effect of ensiled paulownia leaves in a high-forage diet on ruminal fermentation, methane production, fatty acid composition, and milk production performance of dairy cows. J Anim Sci Biotechnol 2022; 13:104. [PMID: 35953848 PMCID: PMC9373331 DOI: 10.1186/s40104-022-00745-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 06/09/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The use of industrial by-products rich in bioactive compounds as animal feeds can reduce greenhouse gas production. Paulownia leaves silage (PLS) was supplemented to dairy cows' diet and evaluated in vitro (Exp. 1; Rusitec) and in vivo (Exp. 2, cannulated lactating dairy cows and Exp. 3, non-cannulated lactating dairy cows). The study investigated the PLS effect on ruminal fermentation, microbial populations, methane production and concentration, dry matter intake (DMI), and fatty acid (FA) proportions in ruminal fluid and milk. RESULTS Several variables of the ruminal fluid were changed in response to the inclusion of PLS. In Exp. 1, the pH increased linearly and quadratically, whereas ammonia and total volatile fatty acid (VFA) concentrations increased linearly and cubically. A linear, quadratic, and cubical decrease in methane concentration was observed with increasing dose of the PLS. Exp. 2 revealed an increase in ruminal pH and ammonia concentrations, but no changes in total VFA concentration. Inclusion of PLS increased ruminal propionate (at 3 h and 6 h after feeding), isovalerate, and valerate concentrations. Addition of PLS also affected several populations of the analyzed microorganisms. The abundances of protozoa and bacteria were increased, whereas the abundance of archaea were decreased by PLS. Methane production decreased by 11% and 14% in PLS-fed cows compared to the control in Exp. 2 and 3, respectively. Exp. 3 revealed a reduction in the milk protein and lactose yield in the PLS-fed cows, but no effect on DMI and energy corrected milk yield. Also, the PLS diet affected the ruminal biohydrogenation process with an increased proportions of C18:3 cis-9 cis-12 cis-15, conjugated linoleic acid, C18:1 trans-11 FA, polyunsaturated fatty acids (PUFA), and reduced n6/n3 ratio and saturated fatty acids (SFA) proportion in milk. The relative transcript abundances of the 5 of 6 analyzed genes regulating FA metabolism increased. CONCLUSIONS The dietary PLS replacing the alfalfa silage at 60 g/kg diet can reduce the methane emission and improve milk quality with greater proportions of PUFA, including conjugated linoleic acid, and C18:1 trans-11 along with reduction of SFA. Graphical abstract of the experimental roadmap.
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Affiliation(s)
- Haihao Huang
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637, Poznań, Poland
| | - Dorota Lechniak
- Department of Genetics and Animal Breeding, Poznań University of Life Sciences, Wolynska 33, Poznań, 60-637, Poland
| | | | - Amlan Kumar Patra
- Department of Animal Nutrition, West Bengal University of Animal and Fishery Sciences, 37 K. B. Sarani, Kolkata, India
| | - Martyna Kozłowska
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637, Poznań, Poland.,Department of Animal Nutrition, West Bengal University of Animal and Fishery Sciences, 37 K. B. Sarani, Kolkata, India.,Institute of Genetics and Animal Biotechnology, Polish Academy of Sciences, Postępu 36A, 05-552, Magdalenka, Warsaw, Poland
| | - Pawel Kolodziejski
- Department of Animal Physiology, Biochemistry and Biostructure, Poznan University of Life Sciences, Wolynska 35, Poznan, 60-637, Poland
| | - Min Gao
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637, Poznań, Poland
| | - Sylwester Ślusarczyk
- Department of Pharmaceutical Biology and Botanic Garden of Medicinal Plants, Wrocław Medical University, Wrocław, 50-556, Poland
| | - Daniel Petrič
- Institute of Animal Physiology, Centre of Biosciences of Slovak Academy of Sciences, Šoltésovej 4-6, 040-01, Košice, Slovak Republic
| | - Adam Cieslak
- Department of Animal Nutrition, Poznań University of Life Sciences, Wołyńska 33, 60-637, Poznań, Poland. .,Department of Animal Nutrition, Faculty of Veterinary Medicine and Animal Science, Poznań University of Life Sciences, Poznań, 60-637, Poland.
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22
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Qazi HJ, Ye A, Acevedo-Fani A, Singh H. Impact of Recombined Milk Systems on Gastrointestinal Fate of Curcumin Nanoemulsion. Front Nutr 2022; 9:890876. [PMID: 35811953 PMCID: PMC9260177 DOI: 10.3389/fnut.2022.890876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 06/03/2022] [Indexed: 11/17/2022] Open
Abstract
Milk powder is an important ingredient in various foods and pediatric formulations. The textural and digestion properties of the formulations depend on the preheat treatment of the milk powder during manufacture. Thus, it is interesting to know how these modifications can influence on the release of fortified bioactive compounds during digestion with a milk matrix. In this study, a curcumin nanoemulsion was incorporated into milks reconstituted from low-heat, medium-heat and high-heat skim milk powders (SMPs) and the milks were subjected to semi dynamic in vitro digestion. All the recombined milk systems formed a curd under gastric conditions, which reduced the gastric emptying of protein and curcumin-loaded oil droplets. Because of the formation of heat-induced casein/whey protein complexes, the open fragmented curd formed by the high-heat-treated reconstituted powder resulted in higher protein and oil droplets emptying to the intestine and higher curcumin bioaccessibility. This study provides useful information for how protein ingredients can govern the fate of added health-promoting compounds during digestion.
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Affiliation(s)
- Haroon Jamshaid Qazi
- Riddet Institute, Massey University, Palmerston North, New Zealand
- Department of Food Science and Human Nutrition, University of Veterinary and Animal Sciences, Lahore, Pakistan
| | - Aiqian Ye
- Riddet Institute, Massey University, Palmerston North, New Zealand
- *Correspondence: Aiqian Ye,
| | | | - Harjinder Singh
- Riddet Institute, Massey University, Palmerston North, New Zealand
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Hellebois T, Gaiani C, Soukoulis C. Impact of alfalfa (Medicago sativa L.) galactomannan on the microstructural and physicochemical changes of milk proteins under static in-vitro digestion conditions. Food Chem X 2022; 14:100330. [PMID: 35615260 PMCID: PMC9125660 DOI: 10.1016/j.fochx.2022.100330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 05/04/2022] [Accepted: 05/15/2022] [Indexed: 12/04/2022] Open
Abstract
The impact of alfalfa galactomannan (AAG) on the digestibility of milk proteins was studied. AAG mediated the intragastric aggregation of both sodium caseinate and whey protein isolate. AAG affected only the peptic cleavage of caseins and β-lactoglobulin in the gastric chymes. AAG enhanced the free amino acids release in the gastric chymes regardless of the protein type. The free amino acids release rate in the intestinal chymes were adversely related to AAG content.
This paper reports on the impact of alfalfa galactomannan (AAG, 0.1, 0.5 or 1% wt.) on the colloidal changes and digestibility of sodium caseinate (NaCN) and whey protein isolate (WPI) dispersions (10% wt.) under static in-vitro digestion conditions. Static laser light scattering and confocal laser scanning microscopy-assisted assessment of the NaCN-based gastric chymes confirmed the ability of AAG to control the acid-induced protein coagulation phenomena. Contrarily, the presence of AAG in the WPI-based gastric chymes was associated with the formation of larger aggregates due to the occurrence of segregative microphase separation. The kinetic modelling of the SDS-PAGE densitometric data showed that the intragastric peptic cleavage rates were higher for caseins than whey proteins (β-lactoglobulin, α-lactalbumin). However, free amino acid (FAA) release rates did not exceed 12% under intragastric conditions, whilst notably higher release rates were achieved in the intestinal digesta (36–52%). In all cases, the FAA release rates significantly increased in the presence of AAG.
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24
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Horstman AMH, Huppertz T. Milk proteins: Processing, gastric coagulation, amino acid availability and muscle protein synthesis. Crit Rev Food Sci Nutr 2022; 63:10267-10282. [PMID: 35611879 DOI: 10.1080/10408398.2022.2078782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
It is well-known that the postprandial muscle protein synthetic response to protein ingestion is regulated on various levels, including dietary protein digestion and amino acid (AA) absorption, splanchnic AA retention, the availability of dietary protein-derived AA in the circulation, delivery of AA to the muscle, uptake of AA by the muscle, and intramuscular signaling. AA availability after consumption of dairy products is primarily determined by the rate of gastric emptying of milk proteins, which is mainly linked to coagulation of milk proteins in the stomach. Caseins form gastric coagula, which make their gastric emptying and subsequent postprandial aminoacidemia notably slower than that of whey proteins. Only recently, the role of processing, food structure, preservation and matrix on coagulation herein has been getting attention. In this review we describe various processes, that affect gastric coagulation of caseins and therewith control gastric emptying, such as the conversion to caseinate, heat treatment in the presence of whey proteins, conversion to stirred yoghurt and enzymatic hydrolysis. Modulating product characteristics by processing can be very useful to steer the gastric behavior of protein, and the subsequent digestion and AA absorption and muscle anabolic response to maintain or increase muscle mass.
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Affiliation(s)
| | - Thom Huppertz
- Research & Development, FrieslandCampina, Amersfoort, The Netherlands
- Food Quality and Design, Wageningen University & Research, Wageningen, The Netherlands
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25
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Urango ACM, Neves MIL, Meireles MAA, Silva EK. Whey Beverage Emulsified System as Carrying Matrix of Fennel Seed Extract Obtained by Supercritical CO2 Extraction: Impact of Thermosonication Processing and Addition of Prebiotic Fibers. Foods 2022; 11:foods11091332. [PMID: 35564055 PMCID: PMC9101487 DOI: 10.3390/foods11091332] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 04/22/2022] [Accepted: 04/25/2022] [Indexed: 02/04/2023] Open
Abstract
Whey beverages that were enriched with fructooligosaccharides (FOS) and xylooligosaccharides (XOS) were used for carrying Foeniculum vulgare extract that was obtained by the supercritical CO2 extraction technique to produce novel functional products. Fennel-based whey beverages were subjected to thermosonication processing (100, 200, and 300 W at 60 °C for 15 min) to verify the performance of the dairy colloidal system for protecting the bioactive fennel compounds. The impacts of thermosonication processing on the quality attributes of the functional whey beverages were examined according to their droplet size distribution, microstructure, kinetic stability, color parameters, browning index, total phenolic content (TPC), and antioxidant capacity by DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2-Azino-bis-(3-ethylbenzothiazoline)-6-sulphonic acid) assays. The enrichment of the whey beverages with FOS and XOS did not affect their kinetic stability. However, the addition of prebiotic dietary fibers contributed to reducing the mean droplet size due to the formation of whey protein–FOS/XOS conjugates. The thermosonication treatments did not promote color changes that were discernible to the human eye. On the other hand, the thermosonication processing reduced the kinetic stability of the beverages. Overall, the colloidal dairy systems preserved the antioxidant capacity of the fennel seed extract, regardless of thermosonication treatment intensity. The whey beverages enriched with FOS and XOS proved to be effective carrying matrices for protecting the lipophilic bioactive fennel compounds.
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26
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The effect of fat content in food matrix on the structure, rheological properties and digestive properties of protein. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107464] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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27
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Li S, Pan Z, Ye A, Cui J, Dave A, Singh H. Structural and rheological properties of the clots formed by ruminant milks during dynamic in vitro gastric digestion: Effects of processing and species. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107465] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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28
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Zaeim D, Mulet-Cabero AI, Read SA, Liu W, Han J, Wilde PJ. Effect of oil droplet size on the gastric digestion of milk protein emulsions using a semi-dynamic gastric model. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107278] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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Roy D, Moughan PJ, Ye A, Hodgkinson SM, Stroebinger N, Li S, Dave AC, Montoya CA, Singh H. Structural changes during gastric digestion in piglets of milk from different species. J Dairy Sci 2022; 105:3810-3831. [DOI: 10.3168/jds.2021-21388] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Accepted: 12/26/2021] [Indexed: 11/19/2022]
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Yang M, Ye A, Yang Z, Everett DW, Gilbert EP, Singh H. Kinetics of pepsin-induced hydrolysis and the coagulation of milk proteins. J Dairy Sci 2022; 105:990-1003. [PMID: 34998540 DOI: 10.3168/jds.2021-21177] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/17/2021] [Indexed: 11/19/2022]
Abstract
Hydrolysis-induced coagulation of casein micelles by pepsin occurs during the digestion of milk. In this study, the effect of pH (6.7-5.3) and pepsin concentration (0.110-2.75 U/mL) on the hydrolysis of κ-casein and the coagulation of the casein micelles in bovine skim milk was investigated at 37°C using reverse-phase HPLC, oscillatory rheology, and confocal laser scanning microscopy. The hydrolysis of κ-casein followed a combined kinetic model of first-order hydrolysis and putative pepsin denaturation. The hydrolysis rate increased with increasing pepsin concentration at a given pH, was pH dependent, and reached a maximum at pH ∼6.0. Both the increase in pepsin concentration and decrease in pH resulted in a shorter coagulation time. The extent of κ-casein hydrolysis required for coagulation was independent of the pepsin concentration at a given pH and, because of the lower electrostatic repulsion between para-casein micelles at lower pH, decreased markedly from ∼73% to ∼33% when pH decreased from 6.3 to 5.3. In addition, the rheological properties and the microstructures of the coagulum were markedly affected by the pH and the pepsin concentration. The knowledge obtained from this study provides further understanding on the mechanism of milk coagulation, occurring at the initial stage of transiting into gastric conditions with high pH and low pepsin concentration.
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Affiliation(s)
- Mengxiao Yang
- Riddet Institute, Private Bag 11 222, Palmerston North 4442, New Zealand; School of Food and Advanced Technology, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Private Bag 11 222, Palmerston North 4442, New Zealand; School of Food and Advanced Technology, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
| | - Zhi Yang
- School of Food and Advanced Technology, Massey University, Auckland 0632, New Zealand
| | - David W Everett
- Riddet Institute, Private Bag 11 222, Palmerston North 4442, New Zealand; AgResearch Limited, Tennent Drive, Private Bag 11 008, Palmerston North 4442, New Zealand
| | - Elliot Paul Gilbert
- Australian Centre for Neutron Scattering, ANSTO, New Illawarra Road, Lucas Heights, NSW 2234, Australia; Australian Institute for Bioengineering and Nanotechnology and Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Harjinder Singh
- Riddet Institute, Private Bag 11 222, Palmerston North 4442, New Zealand; School of Food and Advanced Technology, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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He X, Yang M, Yuan F, Singh H, Ye A. High-pressure processing of bovine milk: Effects on the coagulation of protein and fat globules during dynamic in vitro gastric digestion. Curr Res Food Sci 2022; 5:1530-1538. [PMID: 36161223 PMCID: PMC9489539 DOI: 10.1016/j.crfs.2022.09.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/24/2022] [Accepted: 09/06/2022] [Indexed: 11/27/2022] Open
Abstract
The effect of high-pressure processing (HPP) on the digestion behavior of skim and whole bovine milks was investigated using a human gastric simulator. Both milks formed clots during gastric digestion. HPP treatment led to the formation of a coagulum with a fragmented and crumbled structure, compared with the coagulum formed from untreated milk. At pressures over 400 MPa, more intense pressure resulted in looser and more fragmented gastric clot structures. The weight of the dried clots and the moisture content in the clots of the skim milk treated at 600 MPa were significantly lower and higher than that of untreated skim milk, respectively. The looser and more fragmented gastric clot structures consequently led to faster hydrolysis of the proteins by pepsin during gastric digestion. The denaturation of the whey proteins induced by HPP may have also altered the resistance of α-lactalbumin and β-lactoglobulin in the HPP-treated milk samples to pepsin hydrolysis. This study provides insights into the differences among untreated skim milk, untreated whole milk and HPP-treated milk under in vitro gastric digestion conditions. The structure of the clots formed in the gastric environment affects their breakdown and consequently their emptying rate into the intestine. High-pressure processing (HPP) modified physicochemical properties of bovine milk. HPP influenced the structure of bovine milk clots during in vitro gastric digestion. More intense pressure resulted in a looser and more fragmented clot structure. HPP resulted in more rapid hydrolysis of the caseins.
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Affiliation(s)
- Xiaoye He
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, PR China
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs of the People’s Republic of China, Beijing, 100081, PR China
| | - Mengxiao Yang
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand
| | - Fang Yuan
- Key Laboratory of Functional Dairy, Ministry of Education, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, 100083, PR China
- Corresponding author. Box 112, No.17 Qinghua East Road, Haidian District, Beijing, 100083, China.
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand
- Corresponding author. Riddet Institute, Massey University, Private Bag 11 222, Palmerston North, 4442, New Zealand.
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Chen Y, Callanan M, Giblin L, Tobin J, Brodkorb A. Comparison of conventional heat-treated and membrane filtered infant formula using an in vitro semi-dynamic digestion method. Food Funct 2022; 13:8158-8167. [DOI: 10.1039/d2fo00342b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Introducing membrane filtration steps into infant milk formula (IMF) manufacture can partly preserve native whey proteins in the final products. In this study, IMF produced by membrane filtration (MEM-IMF) and...
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Li S, Ye A, Pan Z, Cui J, Dave A, Singh H. Dynamic in vitro gastric digestion behavior of goat milk: Effects of homogenization and heat treatments. J Dairy Sci 2021; 105:965-980. [PMID: 34802734 DOI: 10.3168/jds.2021-20980] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 10/15/2021] [Indexed: 02/01/2023]
Abstract
The gastric digestion behavior of differently processed goat milks was investigated using a dynamic in vitro gastric digestion model, the human gastric simulator. Homogenization and heat treatment of goat milk resulted in gastric clots with highly fragmented structures. They also delayed the pH reduction during digestion, altered the chemical composition of the clots and the emptied digesta, promoted the release of calcium from the clots, and accelerated the hydrolysis and the emptying of milk proteins. The apparent density of the protein particles and the location of the homogenized fat globules changed during the digestion process, as shown in the emptied digesta of the homogenized goat milks. The effects of processing on the digestion behavior of goat milk were broadly similar to those previously reported for cow milk. However, the overall gastric digestion process of goat milk was more affected by homogenization than by heat treatments.
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Affiliation(s)
- Siqi Li
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Aiqian Ye
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand.
| | - Zheng Pan
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Jian Cui
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Anant Dave
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
| | - Harjinder Singh
- Riddet Institute, Massey University, Private Bag 11 222, Palmerston North 4442, New Zealand
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Bovine β-Casomorphins: Friends or Foes? A comprehensive assessment of evidence from in vitro and ex vivo studies. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.08.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Dong L, Wu K, Cui W, Fu D, Han J, Liu W. Tracking the digestive performance of different forms of dairy products using a dynamic artificial gastric digestive system. FOOD STRUCTURE 2021. [DOI: 10.1016/j.foostr.2021.100194] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Emulsions Stabilization and Lipid Digestion Profiles of Sodium Alginate Microgels: Effect of the Crosslink Density. FOOD BIOPHYS 2021. [DOI: 10.1007/s11483-021-09673-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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