1
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Wang N, Yang S, Mu GQ, Qian F, Zhu XM. Exploring lipid digestion discrepancies between preterm formula and human milk: Insights from in vitro gastrointestinal digestion and the impact of added milk fat. Food Res Int 2024; 186:114317. [PMID: 38729709 DOI: 10.1016/j.foodres.2024.114317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2024] [Revised: 03/23/2024] [Accepted: 04/16/2024] [Indexed: 05/12/2024]
Abstract
Lipids play a pivotal role in the nutrition of preterm infants, acting as a primary energy source. Due to their underdeveloped gastrointestinal systems, lipid malabsorption is common, leading to insufficient energy intake and slowed growth. Therefore, it is critical to explore the reasons behind the low lipid absorption rate in formulas for preterm infants. This study utilized a simulated in intro gastrointestinal digestion model to assess the differences in lipid digestion between preterm human milk and various infant formulas. Results showed that the fatty acid release rates for formulas IF3, IF5, and IF7 were 58.90 %, 56.58 %, and 66.71 %, respectively, lower than human milk's 72.31 %. The primary free fatty acids (FFA) and 2-monoacylglycerol (2-MAG) released during digestion were C14:0, C16:0, C18:0, C18:1n-9, and C18:2n-6, in both human milk and formulas. Notably, the higher release of C16:0 in formulas may disrupt fatty acid balance, impacting lipid absorption. Further investigations are necessary to elucidate lipid absorption differences, which will inform the optimization of lipid content in preterm infant formulas.
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Affiliation(s)
- Ning Wang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Sen Yang
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Guang-Qing Mu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Fang Qian
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China
| | - Xue-Mei Zhu
- School of Food Science and Technology, Dalian Polytechnic University, Dalian 116034, PR China.
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2
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Li Z, Liu A, Cao Y, Zhou H, Shen Q, Wu S, Luo J. Milk fat globule membrane proteins are crucial in regulating lipid digestion during simulated in vitro infant gastrointestinal digestion. J Dairy Sci 2024:S0022-0302(24)00859-2. [PMID: 38825138 DOI: 10.3168/jds.2024-24707] [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: 01/23/2024] [Accepted: 04/11/2024] [Indexed: 06/04/2024]
Abstract
Products of lipolysis released during digestion positively affect the metabolism of newborns. In contrast to the 3-layer biological membranes covering human milk (HM) fat, the lipid droplets in infant milk formula (IMF) are covered by a single membrane composed of casein and whey proteins. To reduce the differences in lipid structure between IMF and HM, studies have used milk fat globule membrane (MFGM) components such as milk polar lipids (MPL) to prepare emulsions mimicking HM fat globules However, few studies have elucidated the effect of membrane proteins (MP) on lipid digestion in infants. In this study, 3 kinds of emulsions were prepared: One with MPL as the interfaced of lipid droplets (RE-1), one with membrane protein concentrate (MPC) (RE-2) as the interface of lipid droplets, and one with both MPL and MPC (1:2) as the co-interface of lipid droplets (RE-3). The interfacial coverage of the emulsions was confirmed by measuring the contents of MPL and MPC at the lipid droplet interface, and by confocal laser scanning microscopy analyzed. By controlling the homogenization intensity, the specific surface area of lipid droplets was controlled at the same level among the 3 emulsions. The stability constants of the emulsions varied, and RE-1 was the most stable. During simulated in vitro infant gastrointestinal digestion, the amount of free fatty acids (FFA) released from the lipid droplets was significantly higher from those with MPC at the interface (RE-2, RE-3) than from that with MPL at the interface (RE-1). The amount of FFA released at the end of intestinal digestion of RE-1, RE-2, and RE-3 was 255.00 ± 3.54 µmol,328.75 ± 5.30 µmol, 298.50 ± 9.19 µmol, respectively. Compared with the lipid droplets in RE-2, those with MPL at the interface (RE-1, RE-3) released more unsaturated fatty acids (USFAs) during digestion. The emulsifying activity index was highest in RE-3 (MPL and MPC co-interface). The presence of MPL at the emulsion interface increased the release of USFAs, while the presence of MPC increased the release of FFA. These results show that both MPL and MP are indispensable in the construction of MFGM. Understanding their effects on digestion can provide new strategies for the development of infant foods.
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Affiliation(s)
- Zhixi Li
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410114, China
| | - Ajie Liu
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410114, China
| | - Yu Cao
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410114, China
| | - Hui Zhou
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410114, China
| | - Qingwu Shen
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410114, China
| | - Shan Wu
- Research and Development Center, Xi'an Yinqiao Dairy Technology Co., Ltd., Xi'an, Shaanxi, China.
| | - Jie Luo
- College of Food Science and Technology, Hunan Agricultural University, Changsha, 410114, China.
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3
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Borewicz K, Brück WM. Supplemented Infant Formula and Human Breast Milk Show Similar Patterns in Modulating Infant Microbiota Composition and Function In Vitro. Int J Mol Sci 2024; 25:1806. [PMID: 38339084 PMCID: PMC10855883 DOI: 10.3390/ijms25031806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/10/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
The gut microbiota of healthy breastfed infants is often dominated by bifidobacteria. In an effort to mimic the microbiota of breastfed infants, modern formulas are fortified with bioactive and bifidogenic ingredients. These ingredients promote the optimal health and development of infants as well as the development of the infant microbiota. Here, we used INFOGEST and an in vitro batch fermentation model to investigate the gut health-promoting effects of a commercial infant formula supplemented with a blend containing docosahexaenoic acid (DHA) (20 mg/100 kcal), polydextrose and galactooligosaccharides (PDX/GOS) (4 g/L, 1:1 ratio), milk fat globule membrane (MFGM) (5 g/L), lactoferrin (0.6 g/L), and Bifidobacterium animalis subsp. lactis, BB-12 (BB-12) (106 CFU/g). Using fecal inoculates from three healthy infants, we assessed microbiota changes, the bifidogenic effect, and the short-chain fatty acid (SCFA) production of the supplemented test formula and compared those with data obtained from an unsupplemented base formula and from the breast milk control. Our results show that even after INFOGEST digestion of the formula, the supplemented formula can still maintain its bioactivity and modulate infants' microbiota composition, promote faster bifidobacterial growth, and stimulate production of SCFAs. Thus, it may be concluded that the test formula containing a bioactive blend promotes infant gut microbiota and SCFA profile to something similar, but not identical to those of breastfed infants.
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Affiliation(s)
- Klaudyna Borewicz
- Mead Johnson B.V., Middenkampweg 2, 6545 CJ Nijmegen, The Netherlands;
| | - Wolfram Manuel Brück
- Institute for Life Technologies, University of Applied Sciences Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
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4
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Ma Q, Zhang X, Li X, Liu L, Liu S, Hao D, Bora AFM, Kouame KJEP, Xu Y, Liu W, Li J. Novel trends and challenges in fat modification of next-generation infant formula: Considering the structure of milk fat globules to improve lipid digestion and metabolism of infants. Food Res Int 2023; 174:113574. [PMID: 37986523 DOI: 10.1016/j.foodres.2023.113574] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 10/05/2023] [Accepted: 10/09/2023] [Indexed: 11/22/2023]
Abstract
Differences in the composition and structure of lipid droplets in infant formula (IF) and human milk (HM) can affect the fat digestion of infants, leading to high risk of metabolic diseases during later stages of growth. Recently, interest in simulating HM fat (HMF) has gradually increased due to its beneficial functions for infants. Much research focuses on the simulation of fatty acids and triacylglycerols. Enzymatic combined with new technologies such as carbodiimide coupling immobilization enzymes, solvent-free synthesis, and microbial fermentation can improve the yield of simulated HMF. Furthermore, fat modification in next-generation IF requires attention to the impact on the structure and function of milk fat globules (MFG). This review also summarizes the latest reports on MFG structure simulation, mainly related to the addition method and sequence of membrane components, and other milk processing steps. Although some of the simulated HMF technologies and products have been applied to currently commercially available IF, the cost is still high. Furthermore, understanding the fat decomposition of simulated HMF during digestion and assessing its nutritional effects on infants later in life is also a huge challenge. New process development and more clinical studies are needed to construct and evaluate simulated HMF in the future.
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Affiliation(s)
- Qian Ma
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China
| | - Xiuxiu Zhang
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China
| | - Xiaodong Li
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China.
| | - Lu Liu
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China.
| | - Shuming Liu
- Heilongjiang Beingmate Dairy Company Ltd, Suihua 151499, China
| | - Donghai Hao
- Heilongjiang Beingmate Dairy Company Ltd, Suihua 151499, China
| | - Awa Fanny Massounga Bora
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China
| | - Kouadio Jean Eric-Parfait Kouame
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China
| | - Yanling Xu
- Food College, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China; Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St. Xiangfang Dist, 150030 Harbin, China
| | - Wenli Liu
- Heilongjiang Beingmate Dairy Company Ltd, Suihua 151499, China
| | - Jiajun Li
- Heilongjiang Yaolan Dairy Technology Stock Company Ltd, Harbin 150010, China
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5
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Sun Y, Liu S, Ma S, Sun L, Li X, Liu L, Ma C, Fanny MBA, Jiao Y, Bi L. Interfacial compositions of fat globules modulate structural characteristics and lipolysis of its model emulsions during in-vitro digestion. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:4668-4675. [PMID: 36997692 DOI: 10.1002/jsfa.12591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Revised: 03/03/2023] [Accepted: 03/30/2023] [Indexed: 06/06/2023]
Abstract
BACKGROUND This study investigated whether milk fat globule membrane as an emulsifier could make fat easier for infants to digest. An emulsion was formed using the membrane material, where anhydrous milk fat was used as the core material, milk fat globule membrane polar lipid (MPL) as the emulsifier, and soybean phospholipid (PL) and milk protein concentrate (MPC) incorporated as control emulsifiers. Structural characterization, glyceride composition, and fatty acid release from emulsions by in vitro digestion were investigated. RESULTS The average particle size at the end of intestinal digestion was in the order MPL < PL < MPC, with diameters of 3.41 ± 0.51 μm, 3.53 ± 0.47 μm, and 10.46 ± 2.33 μm respectively. Meanwhile, laser scanning confocal microscopy results also illustrated that MPL could reduce the degree of aggregation during digestion. The lipolysis degree of MPL emulsion was higher than that of PL and MPC emulsions. MPL not only released higher levels of long-chain fatty acids, such as C18:1, C18:2, C18:3, which are of great significance for infant growth and development, but also released increased levels of C20:4 (arachidonic acid) and C22:6 (docosahexaenoic acid) than PL and MPC emulsions did. CONCLUSION Fat droplets enveloped by milk fat globule MPLs were easier to digest and are therefore more suitable for infant formula. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yue Sun
- Food College, Northeast Agricultural University, Harbin, China
| | - Shuming Liu
- Heilongjiang Beingmate Dairy Co., Ltd, Suihua, China
| | - Shuaiyi Ma
- Food College, Northeast Agricultural University, Harbin, China
- National Center of Technology Innovation for Dairy, Hohhot, China
| | - Lina Sun
- Food College, Northeast Agricultural University, Harbin, China
| | - Xiaodong Li
- Food College, Northeast Agricultural University, Harbin, China
| | - Lu Liu
- Food College, Northeast Agricultural University, Harbin, China
| | - Chunli Ma
- Food College, Northeast Agricultural University, Harbin, China
| | | | - Yang Jiao
- Food College, Northeast Agricultural University, Harbin, China
| | - Lianji Bi
- Food College, Northeast Agricultural University, Harbin, China
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6
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Chitchumroonchokchai C, Riedl K, García-Cano I, Chaves F, Walsh KR, Jimenez-Flores R, Failla ML. Efficient in vitro digestion of lipids and proteins in bovine milk fat globule membrane ingredient (MFGMi) and whey-casein infant formula with added MFGMi. J Dairy Sci 2023; 106:3086-3097. [PMID: 36935237 DOI: 10.3168/jds.2022-22763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 11/12/2022] [Indexed: 03/19/2023]
Abstract
The relative immaturity of the infant digestive system has the potential to affect the bioavailability of dietary lipids, proteins, and their digested products. We performed a lipidomic analysis of a commercial bovine milk fat globule membrane ingredient (MFGMi) and determined the profile of lipids and proteins in the bioaccessible fraction after in vitro digestion of both the ingredient and whey-casein-based infant formula without and with MFGMi. Test materials were digested using a static 2-phase in vitro model, with conditions simulating those in the infant gut. The extent of digestion and the bioaccessibility of various classes of neutral and polar lipids were monitored by measuring a wide targeted lipid profile using direct infusion-mass spectrometry. Digestion of abundant proteins in the ingredient and whey-casein infant formula containing the ingredient was determined by denaturing PAGE with imaging of Coomassie Brilliant Blue stained bands. Cholesterol esters, diacylglycerides, triacylglycerides, phosphatidylcholines, and phosphatidylethanolamines in MFGMi were hydrolyzed readily during in vitro digestion, which resulted in marked increases in the amounts of free fatty acids and lyso-phospholipids in the bioaccessible fraction. In contrast, sphingomyelins, ceramides, and gangliosides were largely resistant to simulated digestion. Proteins in MFGMi and the infant formulas also were hydrolyzed efficiently. The results suggest that neutral lipids, cholesterol esters, phospholipids, and proteins in MFGMi are digested efficiently during conditions that simulate the prandial lumen of the stomach and small intestine of infants. Also, supplementation of whey-casein-based infant formula with MFGMi did not appear to alter the profiles of lipids and proteins in the bioaccessible fraction after digestion.
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Affiliation(s)
| | - Kenneth Riedl
- Nutrient and Phytochemical Analytics Shared Resource, Comprehensive Cancer Center, The Ohio State University, Columbus 43210
| | - Israel García-Cano
- Department of Nutrition, National Institute of Medical Sciences and Nutrition, Tlalpan, Mexico City, 14080, Mexico
| | - Fabio Chaves
- Nutrient and Phytochemical Analytics Shared Resource, Comprehensive Cancer Center, The Ohio State University, Columbus 43210
| | - Kelly R Walsh
- Reckitt, Mead Johnson Nutrition Institute, Evansville, IN 47721
| | - Rafael Jimenez-Flores
- Department of Food Science and Technology, The Ohio State University, Columbus 43210.
| | - Mark L Failla
- Human Nutrition Program, The Ohio State University, Columbus 43210.
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7
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Wang K, Crevel RWR, Mills ENC. An in vitro protocol to characterise the resistance of food proteins to intestinal digestion. Food Chem Toxicol 2023; 173:113590. [PMID: 36584934 DOI: 10.1016/j.fct.2022.113590] [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: 08/21/2022] [Revised: 12/23/2022] [Accepted: 12/24/2022] [Indexed: 12/28/2022]
Abstract
In vitro digestion tests provide data on the form in which dietary proteins maybe presented to the gut mucosal immune system, one of many strands of evidence used in allergenicity risk assessment. A 96-well plate format in vitro intestinal digestion protocol has been developed with a high and low enzyme activity test executed at pH 6.5 and 8.0. It was applied to the systematic analysis of test proteins (including six allergens and one non-allergenic comparator) which were either completely resistant to pepsinolysis or gave rise to large persistent fragments following in vitro gastric digestion. Digestion was monitored using SDS-PAGE and densitometry. Proteins resistant to pepsin were also resistant to intestinal digestion irrespective of the protocol applied and gave rise to large persistent digestion fragments. In contrast persistent fragments from pepsin digestion were readily digested. Bile salts enhanced the digestibility of two highly resistant proteins, lysozyme ad β-lactoglobulin, changing the rank order of protein digestibility. Intestinal digestion tests that include bile salts provide a more physiologically relevant system for future investigation into how digestion products may influence the balance between tolerance and sensitization - and hence contribute to future development of a more effective allergenicity risk assessment process.
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Affiliation(s)
- Kai Wang
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Institute of Biotechnology, 131 Princess Street, Manchester, M1 7DN, UK.
| | - Rene W R Crevel
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Institute of Biotechnology, 131 Princess Street, Manchester, M1 7DN, UK; René Crevel Consulting Ltd, 3 Woodlands Close, Cople, Bedford, MK44 3UE, UK.
| | - E N Clare Mills
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, Manchester Institute of Biotechnology, 131 Princess Street, Manchester, M1 7DN, UK; School of Biosciences and Medicine, The University of Surrey, Guildford, UK.
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8
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Chen Z, Sun Y, Chen L, Zhang Y, Wang J, Li H, Yan X, Xia L, Yao G. Differences in meat quality between Angus cattle and Xinjiang brown cattle in association with gut microbiota and its lipid metabolism. Front Microbiol 2022; 13:988984. [PMID: 36560955 PMCID: PMC9763702 DOI: 10.3389/fmicb.2022.988984] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Accepted: 11/14/2022] [Indexed: 12/12/2022] Open
Abstract
Gut microbiota plays important roles in mediating fat metabolic events in humans and animals. However, the differences of meat quality traits related to the lipid metabolism (MQT-LM) in association with gut microbiota involving in lipid metabolism have not been well explored between Angus cattle (AG) and Xinjiang brown cattle (BC). Ten heads of 18-month-old uncastrated male AG and BC (5 in each group) raised under the identical conditions were selected to test MQT-LM, i.e., the backfat thickness (BFT), the intramuscular fat (IMF) content, the intramuscular adipocyte areas (IAA), the eye muscle area (EMA), the muscle fiber sectional area (MFSA) and the muscle shear force after sacrifice. The gut microbiota composition and structure with its metabolic function were analyzed by means of metagenomics and metabolomics with rectal feces. The correlation of MQT-LM with the gut microbiota and its metabolites was analyzed. In comparison with AG, BC had significant lower EMA, IMF content and IAA but higher BFT and MFSA. Chao1 and ACE indexes of α-diversity were lower. β-diversity between AG and BC were significantly different. The relative abundance of Bacteroidetes, Prevotella and Blautia and Prevotella copri, Blautia wexlerae, and Ruminococcus gnavus was lower. The lipid metabolism related metabolites, i.e., succinate, oxoglutaric acid, L-aspartic acid and L-glutamic acid were lower, while GABA, L-asparagine and fumaric acid were higher. IMF was positively correlated with Prevotella copri, Blautia wexlerae and Ruminococcus gnavus, and the metabolites succinate, oxoglutaric acid, L-aspartic acid and L-glutamic acid, while negatively with GABA, L-asparagine and fumaric acid. BFT was negatively correlated with Blautia wexlerae and the metabolites succinate, L-aspartic acid and L-glutamic acid, while positively with GABA, L-asparagine and fumaric acid. Prevotella Copri, Blautia wexlerae, and Ruminococcus gnavus was all positively correlated with succinate, oxoglutaric acid, while negatively with L-asparagine and fumaric acid. In conclusion, Prevotella copri, Prevotella intermedia, Blautia wexlerae, and Ruminococcus gnavus may serve as the potential differentiated bacterial species in association with MQT-LM via their metabolites of oxoglutaric acid, succinate, fumaric acid, L-aspartic acid, L-asparagine, L-glutamic acid and GABA between BC and AG.
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Affiliation(s)
- Zhuo Chen
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China
| | - Yawei Sun
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China
| | - Lijing Chen
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China
| | - Yang Zhang
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
| | - Jinquan Wang
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China
| | - Hongbo Li
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
| | - Xiangming Yan
- Institute of Animal Science, Xinjiang Academy of Animal Sciences, Urumqi, China
| | - Lining Xia
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China,Xinjiang Key Laboratory of New Drug Study and Creation for Herbivorous Animals (XJKLNDSCHA), Xinjiang Agricultural University, Urumqi, China,*Correspondence: Lining Xia,
| | - Gang Yao
- College of Veterinary Medicine, Xinjiang Agricultural University, Urumqi, China,Xinjiang Key Laboratory of New Drug Study and Creation for Herbivorous Animals (XJKLNDSCHA), Xinjiang Agricultural University, Urumqi, China,Gang Yao,
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9
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Oral drug delivery strategies for development of poorly water soluble drugs in paediatric patient population. Adv Drug Deliv Rev 2022; 190:114507. [PMID: 36049580 DOI: 10.1016/j.addr.2022.114507] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 06/14/2022] [Accepted: 08/17/2022] [Indexed: 01/24/2023]
Abstract
Selecting the appropriate formulation and solubility-enabling technology for poorly water soluble drugs is an essential element in the development of formulations for paediatric patients. Different methodologies and structured strategies are available to select a suitable approach and guide formulation scientists for development of adult formulations. However, there is paucity of available literature for selection of technology and overcoming the challenges in paediatric formulation development. The need for flexible dosing, and the limited knowledge of the safety of many formulation excipients in paediatric subjects, impose significant constraints and in some instances require adaptation of the approaches taken to formulating these drugs for the adult population. Selection of the best drug delivery system for paediatrics requires an efficient, systematic approach that considers a drug's physical and chemical properties and the targeted patient population's requirements. This review is a step towards development of a strategy for the design of solubility enhancing paediatric formulations of highly insoluble drugs. The aim of this review is to provide an overview of different approaches and strategies to consider in order to assist development of paediatric formulation for poorly water-soluble drugs with the provision of examples of some marketed products. In addition, it provides recommendations to overcome the range of challenges posed by these strategies and adaptations of the adult approach/product presentation required to enable paediatric drug development and administration.
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10
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Assessing protein digestibility in allergenicity risk assessment: A comparison of in silico and high throughput in vitro gastric digestion assays. Food Chem Toxicol 2022; 167:113273. [PMID: 35809717 DOI: 10.1016/j.fct.2022.113273] [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: 04/09/2022] [Revised: 06/26/2022] [Accepted: 07/01/2022] [Indexed: 10/17/2022]
Abstract
The susceptibility of a novel food protein to digestion in the pepsin resistance test is widely used to inform the allergenicity risk assessment process. However, it does not model the variation in the intragastric environment found in vivo. Consequently a 96-well plate format in vitro gastric digestion protocol has been developed with a high and low pepsin activity test executed at pH 1.2, 2.5, 5.5 and 6.5. It was used to analyse seven allergens (from milk, egg, peach and peanut) and two non-allergens (cytochrome c and zein). Digestion was monitored using SDS-PAGE and densitometry. In silico predictions were not confirmed experimentally for most of the proteins studied. Proteins were ranked according to half-life and showed susceptibility to digestion was related to the stability of protein structure and protein solubility rather than allergenicity per se. Highly digestible proteins, such as β-casein and Ara h 1, generated abundant resistant fragments Mr > 3.5 kDa in the low pepsin activity test which could be immunologically significant within the context of allergenicity risk assessment for susceptible groups such as infants. The high- and low pepsin activity tests used in this study provided complementary data to support allergenicity risk assessment and used only 10 mg protein.
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11
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Chabni A, Bañares C, Reglero G, Torres CF. A comparative study of in vitro gastrointestinal digestion of three strategic edible oils. J Food Sci 2022; 87:3268-3278. [PMID: 35860984 DOI: 10.1111/1750-3841.16212] [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: 12/09/2021] [Revised: 04/07/2022] [Accepted: 05/10/2022] [Indexed: 11/29/2022]
Abstract
Three strategic edible oils, that is, olive oil, microalgae oil, and shea butter, with a significantly different composition of fatty acids (FA), have been studied in a static in vitro digestion model to evaluate the rate of hydrolysis, bioaccessibility, and micellar phases formed in the process. Lipid composition of each phase and how the lipids are distributed in the different phases have been obtained using this in vitro digestion model. We demonstrate that the composition in FA and the physical properties of the oil are the key factors determining the distribution of lipids in the different phases. The fastest rate of hydrolysis was observed for olive oil and the highest triacylglycerol conversion was attained for shea butter. In contrast, the most abundant precipitate phase was obtained for shea butter, which also produces the highest co-crystallization of cholesterol among the three edible oils studied. This study reveals that digestibility of edible oils is directly related with the initial rate of hydrolysis.
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Affiliation(s)
- Assamae Chabni
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), Madrid, Spain
| | - Celia Bañares
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), Madrid, Spain
| | - Guillermo Reglero
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), Madrid, Spain.,Department of Production and Development of Foods for Health, IMDEA-Food Institute, CEI (UAM-CSIC), Madrid, Spain
| | - Carlos F Torres
- Department of Production and Characterization of Novel Foods, Institute of Food Science Research (CIAL, CSIC-UAM), Madrid, Spain
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12
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Development of the Gastrointestinal Tract in Newborns as a Challenge for an Appropriate Nutrition: A Narrative Review. Nutrients 2022; 14:nu14071405. [PMID: 35406018 PMCID: PMC9002905 DOI: 10.3390/nu14071405] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 02/07/2023] Open
Abstract
The second and third trimesters of pregnancy are crucial for the anatomical and functional development of the gastrointestinal (GI) tract. If premature birth occurs, the immaturity of the digestive and absorptive processes and of GI motility represent a critical challenge to meet adequate nutritional needs, leading to poor extrauterine growth and to other critical complications. Knowledge of the main developmental stages of the processes involved in the digestion and absorption of proteins, carbohydrates, and lipids, as well as of the maturational phases underlying the development of GI motility, may aid clinicians to optimize the nutritional management of preterm infants. The immaturity of these GI systems and functions may negatively influence the patterns of gut colonization, predisposing to an abnormal microbiome. This, in turn, further contributes to alter the functional, immune, and neural development of the GI tract and, especially in preterm infants, has been associated with an increased risk of severe GI complications, such as necrotizing enterocolitis. Deeper understanding of the physiological colonization patterns in term and preterm infants may support the promotion of these patterns and the avoidance of microbial perturbations associated with the development of several diseases throughout life. This review aims to provide a global overview on the maturational features of the main GI functions and on their implications following preterm birth. We will particularly focus on the developmental differences in intestinal digestion and absorption functionality, motility, gut–brain axis interaction, and microbiomes.
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13
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Liu L, Lin S, Ma S, Sun Y, Li X, Liang S. A Comparative Analysis of Lipid Digestion in Human Milk and Infant Formulas Based on Simulated In Vitro Infant Gastrointestinal Digestion. Foods 2022; 11:foods11020200. [PMID: 35053931 PMCID: PMC8774497 DOI: 10.3390/foods11020200] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Revised: 12/31/2021] [Accepted: 01/06/2022] [Indexed: 02/04/2023] Open
Abstract
To investigate the lipid digestive behaviors of human and infant formulas and analyze the differences between them, we investigated the fat globule particle size distribution, lipolysis rate, and fatty acid release of infant formulas with different fat sources and human milk using an in vitro infant digestion model. The results suggested that the particle size in infant formula increased rapidly during gastric digestion and decreased significantly after intestinal digestion, whereas the particle size in human milk increased slowly during gastric digestion but increased rapidly during intestinal digestion (p < 0.05). Despite having a larger droplet size, human milk demonstrated a very high lipolysis rate due to the presence of MFGM. In terms of the distribution of fatty acids in digestion products, the proportion of saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), and polyunsaturated fatty acids (PUFAs) in vegetable oil-based infant formulas was close to that of human milk. The amount of SFAs in milk fat-based infant formulas was significantly higher than that in human milk, and the content of MUFAs in all infant formulas was significantly lower than that in human milk (p < 0.05). After digestion, the most abundant fatty acid released by human milk was C18:2n6c, while the fatty acids released by infant formulas were SFAs, such as C14:0, C16:0, and C18:0.
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Affiliation(s)
- Lu Liu
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
| | - Shuang Lin
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
| | - Shuaiyi Ma
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
| | - Yue Sun
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
| | - Xiaodong Li
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
| | - Shuyan Liang
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang District, Harbin 150030, China
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14
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Jiang H, Gallier S, Feng L, Han J, Liu W. Development of the digestive system in early infancy and nutritional management of digestive problems in breastfed and formula-fed infants. Food Funct 2022; 13:1062-1077. [DOI: 10.1039/d1fo03223b] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Food digestion and absorption in infants are closely related to early growth and long-term health. Human milk and infant formula are the main food sources for 0-6 month-old infants. Due...
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15
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WANG M, XU S, CHEONG LZ, XU X, BI Y, ZHANG H. Development of a reliable pH-STAT in-vitro model for gastrointestinal digestion of lipids and application for infant formula. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.115221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Shixiang XU
- Wilmar (Shanghai) Biotechnology Research and Development Center, China
| | | | - Xuebing XU
- Wilmar (Shanghai) Biotechnology Research and Development Center, China
| | - Yanlan BI
- Henan University of Technology, China
| | - Hong ZHANG
- Henan University of Technology, China; Wilmar (Shanghai) Biotechnology Research and Development Center, China
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16
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Marques MC, Perina NP, Mosquera EMB, Tomé TM, Lazarini T, Mariutti LRB. DHA bioaccessibility in infant formulas and preschool children milks. Food Res Int 2021; 149:110698. [PMID: 34600692 DOI: 10.1016/j.foodres.2021.110698] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 08/30/2021] [Accepted: 08/31/2021] [Indexed: 11/17/2022]
Abstract
Docosahexaenoic acid (DHA, 22:6n-3) is an essential long chain polyunsaturated fatty acid associated with the development of the nervous system that has to be consumed by infants through breast milk or complementary food sources and which consumption is also usually inadequate in preschoolers. In this work, the in vitro bioaccessibility of DHA from two commercial infant formulas (8.9 and 9.1%) and two preschool children milks (6.9 and 7.2%), with similar DHA contents but formulated with different ingredients, was not improved by the presence of egg phospholipids in the product formulation. In addition, the importance of the choice of an age-appropriate in vitro digestion method was demonstrated by comparing the DHA bioaccessibility from the infant formulas by the Infogest 2.0 standardized method and a simulated digestion method specific for infants.
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Affiliation(s)
- M C Marques
- School of Food Engineering, University of Campinas, São Paulo, Brazil
| | - N P Perina
- Medical, Scientific and Regulatory Affairs - Nestlé Nutrition / Nestlé Brazil Ltda, São Paulo, Brazil
| | - E M B Mosquera
- Medical, Scientific and Regulatory Affairs - Nestlé Nutrition / Nestlé Brazil Ltda, São Paulo, Brazil
| | - T M Tomé
- Medical, Scientific and Regulatory Affairs - Nestlé Nutrition / Nestlé Brazil Ltda, São Paulo, Brazil
| | - T Lazarini
- Medical, Scientific and Regulatory Affairs - Nestlé Nutrition / Nestlé Brazil Ltda, São Paulo, Brazil
| | - L R B Mariutti
- School of Food Engineering, University of Campinas, São Paulo, Brazil.
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17
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Zhang N, Zeng JP, Wu YP, Wei M, Zhang H, Zheng L, Deng ZY, Li J. Human Milk sn-2 Palmitate Triglyceride Rich in Linoleic Acid Had Lower Digestibility but Higher Absorptivity Compared with the sn-2 Palmitate Triglyceride Rich in Oleic Acid in Vitro. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:9137-9146. [PMID: 33337143 DOI: 10.1021/acs.jafc.0c05116] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The digestion and absorption of different structural lipids in human milk may be different. Hence, by simulating in vitro infant digestion and Caco-2 cells to explore the effects of 1-oleoyl-2-palmitoyl-3-linoleoylglycerol (OPL)/1,3-dilinoleoyl-2-palmitoylglycerol (LPL)/1,3-dioleoyl-2-palmitoylglycerol (OPO) and their mixtures (M) (OPL/LPL/OPO in M1, M2, and M3 were 1.5/0.5/1, 1.2/1.2/1, and 0.5/0.2/1, respectively) on digestion and absorption. The digestibility of the OPO group was higher than those of the OPL and LPL groups, and the M3 group was higher than the M1 and M2 groups. The synthesis and transport of triglycerides in Caco-2 cells in OPL and LPL groups were higher than the OPO group, and the M1 group was significantly higher than that of M3. The expression of FABP1, PPARα, and MTT protein in OPL and M1 groups was significantly higher than OPO and M3, respectively. There are differences in the digestion and absorption of differently structured lipids from this study.
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Affiliation(s)
- Niu Zhang
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jun-Peng Zeng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yan-Ping Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Meng Wei
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hong Zhang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co. Ltd., Shanghai 200137, China
| | - Liufeng Zheng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ze-Yuan Deng
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jing Li
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
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18
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Fournier E, Roussel C, Dominicis A, Ley D, Peyron MA, Collado V, Mercier-Bonin M, Lacroix C, Alric M, Van de Wiele T, Chassard C, Etienne-Mesmin L, Blanquet-Diot S. In vitro models of gut digestion across childhood: current developments, challenges and future trends. Biotechnol Adv 2021; 54:107796. [PMID: 34252564 DOI: 10.1016/j.biotechadv.2021.107796] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 02/08/2023]
Abstract
The human digestion is a multi-step and multi-compartment process essential for human health, at the heart of many issues raised by academics, the medical world and industrials from the food, nutrition and pharma fields. In the first years of life, major dietary changes occur and are concomitant with an evolution of the whole child digestive tract anatomy and physiology, including colonization of gut microbiota. All these phenomena are influenced by child exposure to environmental compounds, such as drugs (especially antibiotics) and food pollutants, but also childhood infections. Due to obvious ethical, regulatory and technical limitations, in vivo approaches in animal and human are more and more restricted to favor complementary in vitro approaches. This review summarizes current knowledge on the evolution of child gut physiology from birth to 3 years old regarding physicochemical, mechanical and microbial parameters. Then, all the available in vitro models of the child digestive tract are described, ranging from the simplest static mono-compartmental systems to the most sophisticated dynamic and multi-compartmental models, and mimicking from the oral phase to the colon compartment. Lastly, we detail the main applications of child gut models in nutritional, pharmaceutical and microbiological studies and discuss the limitations and challenges facing this field of research.
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Affiliation(s)
- Elora Fournier
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, CRNH Auvergne, 63000 Clermont-Ferrand, France; Toxalim, Research Centre in Food Toxicology, INRAE, ENVT, INP-Purpan, UPS, Université de Toulouse, 31000 Toulouse, France
| | - Charlène Roussel
- Laval University, INAF Institute of Nutrition and Functional Foods, G1V 0A6 Quebec, Canada
| | - Alessandra Dominicis
- European Reference Laboratory for E. coli, Istituto Superiore di Sanità, Rome, Italy
| | - Delphine Ley
- Université Lille 2, Faculté de Médecine, Inserm U995 Nutritional Modulation of Infection and Inflammation, 59045 Lille, France
| | - Marie-Agnès Peyron
- Université Clermont Auvergne, INRAE, UNH, Unité de Nutrition Humaine, CRNH Auvergne, 63000 Clermont-Ferrand, France
| | - Valérie Collado
- Université Clermont Auvergne, EA 4847, CROC, Centre de Recherche en Odontologie Clinique, 63000 Clermont-Ferrand, France
| | - Muriel Mercier-Bonin
- Toxalim, Research Centre in Food Toxicology, INRAE, ENVT, INP-Purpan, UPS, Université de Toulouse, 31000 Toulouse, France
| | - Christophe Lacroix
- Laboratory of Food Biotechnology, Institute of Food, Nutrition and Health, ETH Zurich, 8092 Zürich, Switzerland
| | - Monique Alric
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, CRNH Auvergne, 63000 Clermont-Ferrand, France
| | - Tom Van de Wiele
- Ghent University, Center for Microbial Ecology and Technology (CMET), Coupure Links 653, 9000 Ghent, Belgium
| | - Christophe Chassard
- Université Clermont Auvergne, INRAE, VetAgro Sup, UMRF, 15000 Aurillac, France
| | - Lucie Etienne-Mesmin
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, CRNH Auvergne, 63000 Clermont-Ferrand, France
| | - Stéphanie Blanquet-Diot
- Université Clermont Auvergne, INRAE, UMR 454 MEDIS, Microbiologie Environnement Digestif et Santé, CRNH Auvergne, 63000 Clermont-Ferrand, France.
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19
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Liu L, Zhang X, Liu Y, Wang L, Li X. Simulated In Vitro Infant Gastrointestinal Digestion of Infant Formulas Containing Different Fat Sources and Human Milk: Differences in Lipid Profiling and Free Fatty Acid Release. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6799-6809. [PMID: 34126744 DOI: 10.1021/acs.jafc.1c01760] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Simulated in vitro infant gastrointestinal digestion of human milk and four infant formulas containing different fat sources was analyzed and compared in this study. Although there are disadvantages brought about by its larger droplet size than infant formulas, human milk exhibited a higher lipolysis level due to the presence of MFGM interfacial layers. Higher hydrolysis efficiency of infant formulas (IFB, IFC, and IFM) was due to the presence of MFGM/phospholipid-enriched materials. Human milk released higher free fatty acid levels, especially long-chain fatty acid, and less undigested TAG molecules at the end of digestion than infant formulas. Human milk had a higher proportion of MAG and DAG linked to long-chain fatty acid. Furthermore, several lipids were identified as potential biomarkers that could be used to further analyze differences in the biological properties of human, bovine, and caprine milk. This comprehensive analysis might be fruitful to formulate an infant formula closest to human milk.
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Affiliation(s)
- Lu Liu
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
| | - Xiuxiu Zhang
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
| | - Yibo Liu
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
| | - Lina Wang
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
| | - Xiaodong Li
- Food College, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
- Key Laboratory of Dairy Science, Ministry of Education, Northeast Agricultural University, No. 600 Changjiang St., Xiangfang Dist, 150030 Harbin, China
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Yan CH, Xun XM, Wang J, Wang JZ, You S, Wu FA, Wang J. An alternative solution for α-linolenic acid supplements: in vitro digestive properties of silkworm pupae oil in a pH-stat system. Food Funct 2021; 12:2428-2441. [PMID: 33624675 DOI: 10.1039/d0fo03469j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
α-Linolenic acid (ALA) is recognised to have a regulatory effect on cardiovascular diseases. Due to the low bioavailability of linseed oil (LINO), which is the most common ALA supplement, it is necessary to find a replacement for ALA supplements that is more easily accepted by the human body. The content of ALA in silkworm pupae oil (SPO) is 32.60 ± 0.67%, and SPO can be substituted as a dietary lipid to meet the demand of the human body. In the present study, a pH-stat system was used to investigate the release degree of free fatty acids (FFAs) from SPO and construct a first-order kinetic model. Digestion experiments in vitro with different lipids showed that the maximum release FFA levels were SPO > SO (soybean oil) > LO (lard oil) > MSO (mulberry seed oil) > LINO, and the first-order kinetic apparent rate constants were LINO > SPO > LO > SO > MSO. Triacylglycerol (TAG) and fatty acid composition are the decisive factors in determining the level of lipid digestion. Therefore, the maximum level of FFAs released from SPO (84.34 ± 1.37%) was much higher than that of LINO (49.78 ± 0.52%) when the hydrolysis rates were 0.2114 s-1 and 0.2249 s-1, respectively. In addition, the smaller emulsion droplet size (609.24 ± 43.46 nm) and weaker surface charge (-17.93 ± 0.42 mV) also resulted in higher levels of SPO under in vitro digestion conditions. Meanwhile, due to low melting and crystallisation temperature, SPO is quickly absorbed by the human body. Overall, SPO can be used as a new alternative for ALA supplements based on its superior digestive properties.
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Affiliation(s)
- Cheng-Hai Yan
- Jiangsu Key Laboratory of Sericutural Biology and Biotechnology, School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212018, China.
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Lipid Composition, Digestion, and Absorption Differences among Neonatal Feeding Strategies: Potential Implications for Intestinal Inflammation in Preterm Infants. Nutrients 2021; 13:nu13020550. [PMID: 33567518 PMCID: PMC7914900 DOI: 10.3390/nu13020550] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 12/18/2022] Open
Abstract
Necrotizing enterocolitis (NEC) is a significant cause of morbidity and mortality in the neonatal population. Formula feeding is among the many risk factors for developing the condition, a practice often required in the cohort most often afflicted with NEC, preterm infants. While the virtues of many bioactive components of breast milk have been extolled, the ability to digest and assimilate the nutritional components of breast milk is often overlooked. The structure of formula differs from that of breast milk, both in lipid composition and chemical configuration. In addition, formula lacks a critical digestive enzyme produced by the mammary gland, bile salt-stimulated lipase (BSSL). The gastrointestinal system of premature infants is often incapable of secreting sufficient pancreatic enzymes for fat digestion, and pasteurization of donor milk (DM) has been shown to inactivate BSSL, among other important compounds. Incompletely digested lipids may oxidize and accumulate in the distal gut. These lipid fragments are thought to induce intestinal inflammation in the neonate, potentially hastening the development of diseases such as NEC. In this review, differences in breast milk, pasteurized DM, and formula lipids are highlighted, with a focus on the ability of those lipids to be digested and subsequently absorbed by neonates, especially those born prematurely and at risk for NEC.
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Ke A, Parreira VR, Goodridge L, Farber JM. Current and Future Perspectives on the Role of Probiotics, Prebiotics, and Synbiotics in Controlling Pathogenic Cronobacter Spp. in Infants. Front Microbiol 2021; 12:755083. [PMID: 34745060 PMCID: PMC8567173 DOI: 10.3389/fmicb.2021.755083] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 09/27/2021] [Indexed: 12/14/2022] Open
Abstract
Cronobacter species, in particular C. sakazakii, is an opportunistic bacterial pathogen implicated in the development of potentially debilitating illnesses in infants (<12months old). The combination of a poorly developed immune system and gut microbiota put infants at a higher risk of infection compared to other age groups. Probiotics and prebiotics are incorporated in powdered infant formula and, in addition to strengthening gut physiology and stimulating the growth of commensal gut microbiota, have proven antimicrobial capabilities. Postbiotics in the cell-free supernatant of a microbial culture are derived from probiotics and can also exert health benefits. Synbiotics, a mixture of probiotics and prebiotics, may provide further advantages as probiotics and gut commensals degrade prebiotics into short-chain fatty acids that can provide benefits to the host. Cell-culture and animal models have been widely used to study foodborne pathogens, but sophisticated gut models have been recently developed to better mimic the gut conditions, thus giving a more accurate representation of how various treatments can affect the survival and pathogenicity of foodborne pathogens. This review aims to summarize the current understanding on the connection between Cronobacter infections and infants, as well as highlight the potential efficacy of probiotics, prebiotics, and synbiotics in reducing invasive Cronobacter infections during early infancy.
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Pica V, Stuknytė M, Masotti F, De Noni I, Cattaneo S. Bovine milk fortifiers and fortified pasteurized donor human milk for premature infant nutrition. Peptidomic overview. Lebensm Wiss Technol 2021. [DOI: 10.1016/j.lwt.2020.110037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Mohammed AR, Eid AR, Elzehery R, Al-Harrass M, Shouman B, Nasef N. Effect of Oropharyngeal Administration of Mother's Milk Prior to Gavage Feeding on Gastrin, Motilin, Secretin, and Cholecystokinin Hormones in Preterm Infants: A Pilot Crossover Study. JPEN J Parenter Enteral Nutr 2020; 45:777-783. [PMID: 32458450 DOI: 10.1002/jpen.1935] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 05/12/2020] [Accepted: 05/19/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND Oropharyngeal administration of milk prior to gavage feeding has been shown to improve feeding tolerance in preterm infants. OBJECTIVES The aim is to study the effect of oropharyngeal administration of mother's milk (OPAMM), prior to gavage feeding, on the levels of gastrin, motilin, secretin, and cholecystokinin hormones. METHODS Preterm infants (<32 weeks' gestation) were randomized at a corrected gestational age of 33-34 weeks, in a crossover design, to receive 1 of 2 protocols: 24 hours of OPAMM practice (applying 0.2 mL of mother's milk prior to each gavage feeding) followed by 24 hours of regular gavage-feeding practice in the first protocol or vice versa in the second protocol. The levels of gastrin, motilin, secretin, and cholecystokinin hormones were measured at the end of 24 hours of both practices. RESULTS The data of 40 preterm infants (20 in each protocol) were analyzed. OPAMM was associated with a significant increase in the levels of motilin (median, 233; interquartile range [IQR], 196-296 vs median, 196; IQR, 128-233; P < .01), secretin (median, 401; IQR, 353-458 vs median, 370; IQR, 331-407; P = .04), and cholecystokinin (median, 21.4; IQR, 16-27.1 vs median, 14.9; IQR, 11-20.5; P <.01) but not gastrin (median, 202; IQR, 125-238 vs median, 175; IQR, 128-227; P = .7), compared with regular gavage-feeding practice. CONCLUSION Oro-pharyngeal stimulation by OPAMM, prior to gavage feeding, significantly increased motilin hormone and possibly increased secretin and cholecystokinin hormones.
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Affiliation(s)
- Abdel-Rahman Mohammed
- Neonatal Intensive Care Unit, Mansora University Children's Hospital, Mansoura, Egypt
| | - Abdel-Rahman Eid
- Department of Pediatrics, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
| | - Rasha Elzehery
- Department of Clinical Pathology, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
| | - Mohammad Al-Harrass
- Department of Clinical Pathology, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
| | - Basma Shouman
- Neonatal Intensive Care Unit, Mansora University Children's Hospital, Mansoura, Egypt.,Department of Pediatrics, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
| | - Nehad Nasef
- Neonatal Intensive Care Unit, Mansora University Children's Hospital, Mansoura, Egypt.,Department of Pediatrics, Faculty of Medicine, University of Mansoura, Mansoura, Egypt
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25
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Cattaneo S, Pica V, Stuknytė M, Masotti F, Mallardi D, Tabasso C, Roggero P, De Noni I. Effect of protein fortification on heat damage and occurrence of β-casomorphins in (un)digested donor human milk intended for nutrition of preterm infants. Food Chem 2020; 314:126176. [DOI: 10.1016/j.foodchem.2020.126176] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 12/09/2019] [Accepted: 01/07/2020] [Indexed: 10/25/2022]
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Luo J, Liu L, Liu T, Shen Q, Liu C, Zhou H, Ren F. Simulated in vitro infant gastrointestinal digestion of yak milk fat globules: A comparison with cow milk fat globules. Food Chem 2020; 314:126160. [PMID: 31958749 DOI: 10.1016/j.foodchem.2020.126160] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 12/10/2019] [Accepted: 01/02/2020] [Indexed: 12/28/2022]
Abstract
Lipolysis products released during digestion exert positive metabolic impacts on the nutrition of newborns. However, the lipolysis behavior of yak milk lipids during digestion remains unknown. In this study, the simulated in vitro infant gastrointestinal digestion of cow, yak and standardized yak milk fat globules the same size as those from cow milk (Cow MF, Yak MF and Yak SMF) were compared. Although Cow MF showed a higher lipolysis rate at the beginning of gastric digestion, Yak MF and Yak SMF exhibited a higher lipolysis level during later gastrointestinal digestion. Higher hydrolysis efficiency of yak milk lipids was due to their lipid properties, including their composition and structure. Furthermore, yak milk lipids released more unsaturated fatty acids than Cow MF throughout digestion. This study highlights the crucial role of lipid characteristics in the efficient digestion of milk lipids and provides new insight for the design of yak milk infant diets.
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Affiliation(s)
- Jie Luo
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410114, China; Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
| | - Lu Liu
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Tianshu Liu
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
| | - Qingwu Shen
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410114, China.
| | - Chengguo Liu
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410114, China
| | - Hui Zhou
- College of Food Science and Technology, Hunan Agricultural University, Changsha 410114, China
| | - Fazheng Ren
- Key Laboratory of Functional Dairy, Co-constructed by Ministry of Education and Beijing Government, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; Beijing Laboratory of Food Quality and Safety, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China.
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27
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Mackie A, Mulet-Cabero AI, Torcello-Gómez A. Simulating human digestion: developing our knowledge to create healthier and more sustainable foods. Food Funct 2020; 11:9397-9431. [DOI: 10.1039/d0fo01981j] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The gold standard for nutrition studies is clinical trials but they are expensive and variable, and do not always provide the mechanistic information required, hence the increased use ofin vitroand increasinglyin silicosimulations of digestion.
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Affiliation(s)
- Alan Mackie
- The School of Food Science and Nutrition
- University of Leeds
- Leeds
- UK
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28
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Gimeno-Alcañiz JV, Collado MC. Impact of human milk on the transcriptomic response of fetal intestinal epithelial cells reveals expression changes of immune-related genes. Food Funct 2019; 10:140-150. [PMID: 30499575 PMCID: PMC6350622 DOI: 10.1039/c8fo01107a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Human milk, the best food for infants, is a dynamic and complex fluid that directly influences the immune system and microbiota establishment.
Human milk, the best food for infants, is a dynamic and complex fluid that directly influences the immune system and microbiota establishment. The protective role of human milk is well known although the mechanisms behind it still need to be uncovered. This study aimed to characterize the impact of human milk in the immature intestine of newborns by analyzing the global transcriptomic response of the FHs 74 int cell line (ATCC CCL-241). The expression of intestinal keratins and other genes with a well-annotated intestinal or epithelial function validated FHs 74 int derived from the fetal small intestine as a model of the intestinal epithelium of newborns. Cells exposed to skimmed human milk showed seventeen differentially expressed genes, most of them up-regulated, including four chemokine genes (CXCL1, CXCL2, CXCL3 and CXCL10) and other immune-related genes. qRT-PCR and ELISA analysis confirmed the microarray data and indicated a different pattern of expression upon milk exposure in FHs 74 int as compared to the adult tumorigenic Caco-2 cell line. The evaluation of the functional significance of these transcriptomic changes reveals that human milk exposure may contribute to the regulation of the inflammatory response in the intestine during the perinatal period, which is characterized by the immaturity of the immune system and a pro-inflammatory phenotype.
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Affiliation(s)
- José V Gimeno-Alcañiz
- Instituto de agroquímica y tecnología de alimentos (IATA-CSIC), Department of Biotechnology, Avenida Agustín Escardino 7, 46980 Paterna, Spain.
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29
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Tian M, Han J, Ye A, Liu W, Xu X, Yao Y, Li K, Kong Y, Wei F, Zhou W. Structural characterization and biological fate of lactoferrin-loaded liposomes during simulated infant digestion. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:2677-2684. [PMID: 30338536 DOI: 10.1002/jsfa.9435] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2018] [Revised: 09/15/2018] [Accepted: 10/14/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Limited information is concerned on the structure changes of liposomal delivery system under infant conditions. Positively charged lactoferrin (LF)-loaded liposomes, with the entrapment efficiency (EE) of 52.3 ± 6.3%, were prepared from soybean-derived phospholipids using a thin-layer dispersion method. The structure changes and digestibility of LF-loaded liposomes under infant conditions, including simulated gastric fluid (SGF) and simulated small intestinal fluid (SIF), were characterized in terms of the average particle size, zeta potential, turbidity, fourier transform infrared, transmission electron microscopy, lipolysis and protein hydrolysis. RESULTS This study showed that the functional groups, favorable membrane structure and the EE of liposomes were slightly changed as a function of time when the liposome digested under SGF conditions. However, the intact bilayer structures were damaged and the EE of LF-loaded liposomes decreased to 28.5% after digestion in infant SIF. CONCLUSION These results suggested that liposomal membrane could prevent the gastric degradation and the structure of liposomes was not completely destroyed with a low concentration of pancreatin and bile salts under infant conditions. Present study provided information on the insight into the characteristics of liposomes during infant gastrointestinal digestion, which was useful for the development of microcapsule systems in infant diet. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Mengmeng Tian
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Jianzhong Han
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Aiqian Ye
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
- Riddet Institute, Massey University, Palmerston North, New Zealand
| | - Weilin Liu
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Xiankang Xu
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Yixin Yao
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Kexuan Li
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Youyu Kong
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Fuqiang Wei
- Department of Food Quality and Safety, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Wei Zhou
- Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, China
- Key Laboratory of Tropical Crop Products Processing of Ministry of Agriculture, Zhanjiang, China
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30
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Variations in gastrointestinal lipases, pH and bile acid levels with food intake, age and diseases: Possible impact on oral lipid-based drug delivery systems. Adv Drug Deliv Rev 2019; 142:3-15. [PMID: 30926476 DOI: 10.1016/j.addr.2019.03.005] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 02/27/2019] [Accepted: 03/25/2019] [Indexed: 12/21/2022]
Abstract
The lipids and some surfactants present in oral lipid-based drug delivery systems are potential substrates for the various lipases involved in gastrointestinal (GI) lipolysis. The levels of these enzymes, together with pH and biliairy secretion, are important parameters that condition the fate of lipid-based formulations (LBF) and the dispersion, solubilization and absorption of lipophilic drugs in the GI tract. Since in vitro methods of digestion are now combined with dissolution assays for a better assessment of LBF performance, it is essential to have a basic knowledge on lipase, pH and bile acid (BA) levels in vivo to develop relevant in vitro models. While these parameters and their variations in healthy subjects are today well documented, in vivo data on specific populations (age groups, patients with various diseases, patients with treatment affecting GI tract parameters, …) are scarce and obtaining them from clinical studies is sometimes difficult due to ethical limitations. Here we collected some in vivo data already available on the levels of digestive lipases, gastric and intestinal pH, and BAs at various ages and in patients with exocrine pancreatic insufficiency, a pathological situation that leads to drastic changes in GI tract parameters and impacts pharmacological treatments.
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31
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Hageman JHJ, Keijer J, Dalsgaard TK, Zeper LW, Carrière F, Feitsma AL, Nieuwenhuizen AG. Free fatty acid release from vegetable and bovine milk fat-based infant formulas and human milk during two-phase in vitro digestion. Food Funct 2019; 10:2102-2113. [DOI: 10.1039/c8fo01940a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The profile of fatty acids released during in vitro digestion of vegetable and bovine milk fat-based infant formula differ.
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Affiliation(s)
- Jeske H. J. Hageman
- Human and Animal Physiology
- Wageningen University
- 6708 WD Wageningen
- the Netherlands
- FrieslandCampina
| | - Jaap Keijer
- Human and Animal Physiology
- Wageningen University
- 6708 WD Wageningen
- the Netherlands
| | | | - Lara W. Zeper
- Human and Animal Physiology
- Wageningen University
- 6708 WD Wageningen
- the Netherlands
| | - Frédéric Carrière
- Aix Marseille Univ
- CNRS
- Bioénergetique et Ingénierie des Protéines UMR7281
- 13402 Marseille
- France
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32
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Acquistapace S, Patel L, Patin A, Forbes-Blom E, Cuenoud B, Wooster TJ. Effects of interesterified lipid design on the short/medium chain fatty acid hydrolysis rate and extent (in vitro). Food Funct 2019; 10:4166-4176. [DOI: 10.1039/c9fo00671k] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Short/medium chain fatty acids have well known health effects such as gut immune regulation and ketogenesis.
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Affiliation(s)
| | | | - Amaury Patin
- Institute of Food Safety and Analytical Sciences
- Nestlé Research
- Lausanne
- Switzerland
| | | | - Bernard Cuenoud
- Translation Research
- Nestlé Health Science
- Epalinges
- Switzerland
| | - Tim J. Wooster
- Nestlé Institute of Material Sciences
- Nestlé Research
- Lausanne
- Switzerland
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33
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Neal-Kluever A, Fisher J, Grylack L, Kakiuchi-Kiyota S, Halpern W. Physiology of the Neonatal Gastrointestinal System Relevant to the Disposition of Orally Administered Medications. Drug Metab Dispos 2018; 47:296-313. [DOI: 10.1124/dmd.118.084418] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 12/14/2018] [Indexed: 12/13/2022] Open
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34
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Cheong LZ, Jiang C, He X, Song S, Lai OM. Lipid Profiling, Particle Size Determination, and in Vitro Simulated Gastrointestinal Lipolysis of Mature Human Milk and Infant Formula. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:12042-12050. [PMID: 30362342 DOI: 10.1021/acs.jafc.8b03998] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Dairy technologists has attempted to produce "improved" infant formulas mimicking human milk by supplementation with bovine MFGM and/or phospholipids-enriched materials. The present study investigated and compared the lipid profile and particle sizes of mature human milk and infant formula fat globules (IF 1, IF 2, IF 3, and IF 4) and elucidated the relationship between physicochemical properties and in vitro simulated gastrointestinal lipolysis rate of the different milk samples. Despite having larger micron-sized fat globules, mature human milk demonstrated the highest gastrointestinal lipolysis rate with higher release of medium- and long-chain saturated fatty acids. In comparison, IF 3, which contained the lowest phospholipids content, demonstrated the lowest gastrointestinal lipolysis rate. Higher gastrointestinal lipolysis rate of mature human milk fat as compared to infant formula fats might be due to the presence of MFGM interfacial layer (phospholipids) surrounding the fat droplets which govern lipase activity on lipid droplets.
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Affiliation(s)
- Ling-Zhi Cheong
- Department of Food Science and Engineering, College of Food and Pharmaceutical Sciences , Ningbo University , Ningbo 315211 , China
| | - Chenyu Jiang
- Department of Food Science and Engineering, College of Food and Pharmaceutical Sciences , Ningbo University , Ningbo 315211 , China
| | - Xiaoqian He
- Department of Food Science and Engineering, College of Food and Pharmaceutical Sciences , Ningbo University , Ningbo 315211 , China
| | - Shuang Song
- National Institute for Nutrition and Health , Chinese Center for Disease Control and Prevention , Beijing 100050 , China
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35
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Disentangling Host-Microbiota Regulation of Lipid Secretion by Enterocytes: Insights from Commensals Lactobacillus paracasei and Escherichia coli. mBio 2018; 9:mBio.01493-18. [PMID: 30181250 PMCID: PMC6123438 DOI: 10.1128/mbio.01493-18] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
The gut microbiota contributes to nutrients absorption and metabolism by enterocytes, but the molecular mechanisms involved remain poorly understood, and most conclusions are inferred from studies comparing germfree and conventional animals colonized with diverse bacterial species. We selected two model commensal microorganisms, Escherichia coli and Lactobacillus paracasei, to assess the role of the small-intestinal microbiota in modulating lipid absorption and metabolism by the epithelium. Using an integrated approach encompassing cellular and murine models and combining metabolic parameters measurement, lipid droplet imaging, and gene expression analysis, we demonstrated that under homeostatic conditions, L. paracasei promotes fat storage in enterocytes, whereas E. coli enhances lipid catabolism and reduces chylomicron circulating levels. The Akt/mammalian target of sirolimus (mTOR) pathway is inhibited by both bacterial species in vitro, indicating that several regulatory pathways are involved in the distinct intracellular lipid outcomes associated with each bacterial species. Moreover, soluble bacterial factors partially reproduce the effects observed with live microorganisms. However, reduction of chylomicron circulating levels in E. coli-colonized animals is lost under high-fat-diet conditions, whereas it is potentiated by L. paracasei colonization accompanied by resistance to hypercholesterolemia and excess body weight gain.IMPORTANCE The specific contribution of each bacterial species within a complex microbiota to the regulation of host lipid metabolism remains largely unknown. Using two model commensal microorganisms, L. paracasei and E. coli, we demonstrated that both bacterial species impacted host lipid metabolism in a diet-dependent manner and, notably, that L. paracasei-colonized mice but not E. coli-colonized mice resisted high-fat-diet-induced body weight gain. In addition, we set up cellular models of fatty acid absorption and secretion by enterocytes cocultured with bacteria and showed that, in vitro, both L. paracasei and E. coli inhibited lipid secretion, through increased intracellular fat storage and enhanced lipid catabolism, respectively.
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36
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Gan J, Bornhorst GM, Henrick BM, German JB. Protein Digestion of Baby Foods: Study Approaches and Implications for Infant Health. Mol Nutr Food Res 2018; 62:10.1002/mnfr.201700231. [PMID: 28891110 PMCID: PMC6435278 DOI: 10.1002/mnfr.201700231] [Citation(s) in RCA: 57] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 06/12/2017] [Indexed: 12/24/2022]
Abstract
Protein digestion is critical for infants. Dissimilarities between infants and adults in food intake and digestive physiology lead to distinct patterns of proteolysis between individuals. However, such differences are not well represented in many studies on protein digestion of baby foods. The complex biological structures of baby foods and the physiology of the infant digestive system are key factors affecting proteolysis during the first two years of life. Well-controlled in vitro studies have demonstrated that varying digestion conditions alter the specificity, rate, and extent of proteolysis of baby foods. Nonetheless, these models do not completely replicate in vivo proteolysis or the complex biogeography of the gastrointestinal tract. Animal and clinical studies have revealed the fate of dietary proteins along the digestive tract and the overall health impact on subjects. Building comprehensive and annotated datasets from human infants will require innovative and standardized measurement. Now, more systematic evaluations of digestion are emerging to advance the knowledge and its translation as food design for effective diet and health management in infants.
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Affiliation(s)
- Junai Gan
- Department of Food Science and Technology, University of California Davis, USA
| | - Gail M. Bornhorst
- Department of Food Science and Technology, University of California Davis, USA
- Department of Biological and Agricultural Engineering, University of California Davis, USA
| | - Bethany M. Henrick
- Department of Food Science and Technology, University of California Davis, USA
- Foods for Health Institute, University of California Davis, USA
| | - J. Bruce German
- Department of Food Science and Technology, University of California Davis, USA
- Foods for Health Institute, University of California Davis, USA
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37
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Zou X, Ali AH, Abed SM, Guo Z. Current knowledge of lipids in human milk and recent innovations in infant formulas. Curr Opin Food Sci 2017. [DOI: 10.1016/j.cofs.2017.06.010] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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38
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A first step towards a consensus static in vitro model for simulating full-term infant digestion. Food Chem 2017; 240:338-345. [PMID: 28946281 DOI: 10.1016/j.foodchem.2017.07.145] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 07/04/2017] [Accepted: 07/26/2017] [Indexed: 11/22/2022]
Abstract
In vitro alternatives to clinical trials are used for studying human food digestion. For simulating infant digestion, only a few models, lacking physiological relevance, are available. Thanks to an extensive literature review of the in vivo infant digestive conditions, a gastrointestinal static in vitro model was developed for infants born at term and aged 28days. The model was applied to the digestion of a commercial infant formula. Kinetics of digestion, as well as the structural evolution, were compared with those obtained while submitting the same formula to the adult international consensus protocol of in vitro static digestion. The kinetics of proteolysis and lipolysis differed according to the physiological stage resulting mainly from the reduced level of enzymes and bile salts, as well as the higher gastric pH in the infant model. This in vitro static model of infant digestion is of interest for scientists, food or pharmaceutical manufacturers.
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