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Park M, Lee HB, Kim HR, Kang MC, Jeong D, Choi HD, Hong JS, Park HY. Resistant starch-enriched brown rice exhibits prebiotic properties and enhances gut health in obese mice. Food Res Int 2024; 187:114417. [PMID: 38763667 DOI: 10.1016/j.foodres.2024.114417] [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: 03/05/2024] [Revised: 04/20/2024] [Accepted: 04/22/2024] [Indexed: 05/21/2024]
Abstract
Resistant starch serves as a prebiotic in the large intestine, aiding in the maintenance of a healthy intestinal environment and mitigating associated chronic illnesses. This study aimed to investigate the impact of resistant starch-enriched brown rice (RBR) on intestinal health and functionality. We assessed changes in resistant starch concentration, structural alterations, and branch chain length distribution throughout the digestion process using an in vitro model. The efficacy of RBR in the intestinal environment was evaluated through analyses of its prebiotic potential, effects on intestinal microbiota, and intestinal function-related proteins in obese animals fed a high-fat diet. RBR exhibited a higher yield of insoluble fraction in both the small and large intestines compared to white and brown rice. The total digestible starch content decreased, while the resistant starch content significantly increased during in vitro digestion. Furthermore, RBR notably enhanced the growth of four probiotic strains compared to white and brown rice, displaying higher proliferation activity than the positive control, FOS. Notably, consumption of RBR by high-fat diet-induced obese mice suppressed colon shortening, increased Bifidobacteria growth, and improved intestinal permeability. These findings underscore the potential prebiotic and gut health-promoting attributes of RBR, offering insights for the development of functional foods aimed at preventing gastrointestinal diseases.
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Affiliation(s)
- Miri Park
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Hye-Bin Lee
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Ha Ram Kim
- Food Convergence Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Min-Cheol Kang
- Food Convergence Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Duyun Jeong
- Department of Food and Food Service Industry, Kyungpook National University, Sangju 37224, Republic of Korea
| | - Hee-Don Choi
- Food Convergence Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Jung Sun Hong
- Food Convergence Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea
| | - Ho-Young Park
- Food Functionality Research Division, Korea Food Research Institute, Wanju-gun 55365, Republic of Korea; Department of Food Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea.
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2
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Colucci Cante R, Nigro F, Passannanti F, Lentini G, Gallo M, Nigro R, Budelli AL. Gut health benefits and associated systemic effects provided by functional components from the fermentation of natural matrices. Compr Rev Food Sci Food Saf 2024; 23:e13356. [PMID: 38767859 DOI: 10.1111/1541-4337.13356] [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: 10/09/2023] [Revised: 02/26/2024] [Accepted: 04/06/2024] [Indexed: 05/22/2024]
Abstract
Recently, the role of the gut microbiota in metabolic health, immunity, behavioral balance, longevity, and intestine comfort has been the object of several studies from scientific communities. They were encouraged by a growing interest from food industries and consumers toward novel fermented ingredients and formulations with powerful biological effects, such as pre, pro, and postbiotic products. Depending on the selected strains, the operating conditions, the addition of suitable reagents or enzymes, the equipment, and the reactor configurations, functional compounds with high bioactivity, such as short-chain fatty acids, gamma-aminobutyric acid, bioactive peptides, and serotonin, can be enhanced and/or produced through fermentation of several vegetable matrices. Otherwise, their formation can also be promoted directly in the gut after the dietary intake of fermented foods: In this case, fermentation will aim to increase the content of precursor substances, such as indigestible fibers, polyphenols, some amino acids, and resistant starch, which can be potentially metabolized by endogenous gut microorganisms and converted in healthy molecules. This review provides an overview of the main functional components currently investigated in literature and the associated gut health benefits. The current state of the art about fermentation technology as a promising functionalization tool to promote the direct or indirect formation of gut-health-enhancing components was deepened, highlighting the importance of optimizing microorganism selection, system setups, and process conditions according to the target compound of interest. The collected data suggested the possibility of gaining novel functional food ingredients or products rich in functional molecules through fermentation without performing additional extraction and purification stages, which are needed when conventional culture broths are used.
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Affiliation(s)
- Rosa Colucci Cante
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
- Department of Industrial Engineering, University of Niccolò Cusano, Rome, Italy
| | - Federica Nigro
- I. T. P. Innovation and Technology Provider S.r.l., Naples, Italy
| | - Francesca Passannanti
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
- I. T. P. Innovation and Technology Provider S.r.l., Naples, Italy
| | - Giulia Lentini
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
| | - Marianna Gallo
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
- Department of Industrial Engineering, University of Niccolò Cusano, Rome, Italy
- I. T. P. Innovation and Technology Provider S.r.l., Naples, Italy
| | - Roberto Nigro
- Department of Chemical Engineering, Materials, and Industrial Production, University of Naples Federico II, Naples, Italy
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3
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Chen S, Mei H, Xu L, Zhan L, Yang Y, Zhao D, Bao G, Li X, Cao Z. Impact of fermented feed of soybean hulls and rapeseed cake on immunity, antioxidant capacity, and gut microbiota in Chahua chicken. Poult Sci 2024; 103:103451. [PMID: 38301497 PMCID: PMC10847688 DOI: 10.1016/j.psj.2024.103451] [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: 10/31/2023] [Revised: 12/25/2023] [Accepted: 01/06/2024] [Indexed: 02/03/2024] Open
Abstract
The present study investigated the effects of replacing part of the basal diet with 2-stage fermented feed (FF) (soybean hulls:rapeseed cake (2:1, m/m)) on the growth performance, immunity, antioxidant capacity, and intestinal health of Chahua chicken. A total of 160 Chahua chickens were randomly divided into 4 groups to receive a control diet or diet with 5%, 10%, or 15% of the basal diet replaced by FF, respectively for 56 d. The results showed that FF significantly improved the average daily gain (ADG) and average daily feed intake (ADFI) of Chahua chickens (P < 0.05). Furthermore, the serum immunoglobulin (Ig) A, glutathione peroxidase (GSH-Px), and superoxide dismutase (SOD) in Chahua chicken receiving the diet added with 15% FF significantly increased (P < 0.05). Chahua chicken in both the 10% and 15% groups showed increased serum IgG and IgM and decreased malondialdehyde. Serum interleukin-2 and interferon-gamma significantly increased in all FF groups. Compared with the CON group, higher ileal villus height (VH) was found in the 10% FF group. Treatment with FF significantly increased the ileal villus height/crypt depth (VH/CD) ratio, jejunal VH, and jejunal VH/CD ratio while reducing ileal and jejunal CD. The modified gut microbiota composition was observed in the Chahua chicken fed a diet containing FF, in particular, with the increased abundance of Faecalibacterium and Lactobacillus. The abundance of Lactobacillus significantly increased in the 10% and 15% FF groups (all P < 0.05). Correlation analysis revealed a positive correlation between Lactobacillus and VH (R = 0.38, P = 0.10, Figure 3B), AH/CD ratio (R = 0.63, P = 0.003), and a negative correlation with CD (R = -0.72, P = 0.001). These results indicate that FF improves immunity, antioxidant capacity, and intestinal health and consequently enhances growth performance in Chahua chicken.
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Affiliation(s)
- Shiyu Chen
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Huiyou Mei
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Le Xu
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China; Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Heilongtan, Kunming 650201, People's Republic of China
| | - Limei Zhan
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Yuhao Yang
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Dexuan Zhao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Guoying Bao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Xiaoye Li
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China
| | - Zhenhui Cao
- Faculty of Animal Science and Technology, Yunnan Agricultural University, Heilongtan, Kunming 650201, People's Republic of China; Yunnan Provincial Key Laboratory of Animal Nutrition and Feed Science, Heilongtan, Kunming 650201, People's Republic of China.
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4
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Photenhauer AL, Villafuerte-Vega RC, Cerqueira FM, Armbruster KM, Mareček F, Chen T, Wawrzak Z, Hopkins JB, Vander Kooi CW, Janeček Š, Ruotolo BT, Koropatkin NM. The Ruminococcus bromii amylosome protein Sas6 binds single and double helical α-glucan structures in starch. Nat Struct Mol Biol 2024; 31:255-265. [PMID: 38177679 PMCID: PMC11081458 DOI: 10.1038/s41594-023-01166-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Accepted: 10/27/2023] [Indexed: 01/06/2024]
Abstract
Resistant starch is a prebiotic accessed by gut bacteria with specialized amylases and starch-binding proteins. The human gut symbiont Ruminococcus bromii expresses Sas6 (Starch Adherence System member 6), which consists of two starch-specific carbohydrate-binding modules from family 26 (RbCBM26) and family 74 (RbCBM74). Here, we present the crystal structures of Sas6 and of RbCBM74 bound with a double helical dimer of maltodecaose. The RbCBM74 starch-binding groove complements the double helical α-glucan geometry of amylopectin, suggesting that this module selects this feature in starch granules. Isothermal titration calorimetry and native mass spectrometry demonstrate that RbCBM74 recognizes longer single and double helical α-glucans, while RbCBM26 binds short maltooligosaccharides. Bioinformatic analysis supports the conservation of the amylopectin-targeting platform in CBM74s from resistant-starch degrading bacteria. Our results suggest that RbCBM74 and RbCBM26 within Sas6 recognize discrete aspects of the starch granule, providing molecular insight into how this structure is accommodated by gut bacteria.
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Affiliation(s)
- Amanda L Photenhauer
- Department of Microbiology & Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | | | - Filipe M Cerqueira
- Department of Microbiology & Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Krista M Armbruster
- Department of Microbiology & Immunology, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Filip Mareček
- Laboratory of Protein Evolution, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Tiantian Chen
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Zdzislaw Wawrzak
- Northwestern Synchrotron Research Center-LS-CAT, Northwestern University, Argonne, IL, USA
| | - Jesse B Hopkins
- The Biophysics Collaborative Access Team (BioCAT), Department of Biological, Chemical, and Physical Sciences, Illinois Institute of Technology, Chicago, IL, USA
| | - Craig W Vander Kooi
- Department of Biochemistry and Molecular Biology, College of Medicine, University of Florida, Gainesville, FL, USA
| | - Štefan Janeček
- Laboratory of Protein Evolution, Institute of Molecular Biology, Slovak Academy of Sciences, Bratislava, Slovakia
| | | | - Nicole M Koropatkin
- Department of Microbiology & Immunology, University of Michigan Medical School, Ann Arbor, MI, USA.
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5
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Pickens TL, Cockburn DW. Clostridium butyricum Prazmowski can degrade and utilize resistant starch via a set of synergistically acting enzymes. mSphere 2024; 9:e0056623. [PMID: 38131665 PMCID: PMC10826348 DOI: 10.1128/msphere.00566-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
Resistant starch is a prebiotic fiber that is best known for its ability to increase butyrate production by the gut microbiota. This butyrate then plays an important role in modulating the immune system and inflammation. However, the ability to use this resistant starch appears to be a rare trait within the gut microbiota, with only a few species such as Ruminococcus bromii and Bifidobacterium adolescentis having been demonstrated to possess this ability. Furthermore, these bacteria do not directly produce butyrate themselves, rather they rely on cross-feeding interactions with other gut bacteria for its production. Here, we demonstrate that the often-used probiotic organism Clostridium butyricum also possesses the ability to utilize resistant starch from a number of sources, with direct production of butyrate. We further explore the enzymes responsible for this trait, demonstrating that they exhibit significant synergy, though with different enzymes exhibiting more or less importance depending on the source of the resistant starch. Thus, the co-administration of Clostridium butyricum may have the ability to improve the beneficial effects of resistant starch.IMPORTANCEClostridium butyricum is seeing increased use as a probiotic, due to potential health benefits tied to its ability to produce butyrate. Here, we demonstrate that this organism can use a variety of resistant starch sources and characterize the enzymes it uses to accomplish this. Given the relative rarity of resistant starch utilizing ability within the gut and the health benefits tied to resistant starch, the combined use of this organism with resistant starch in synbiotic formulations may prove beneficial.
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Affiliation(s)
- Tara L. Pickens
- Department of Food Science, The Pennsylvania State University, State College, Pennsylvania, USA
- The One Health Microbiome Center, Huck Institute of the Life Sciences, The Pennsylvania State University, State College, Pennsylvania, USA
| | - Darrell W. Cockburn
- Department of Food Science, The Pennsylvania State University, State College, Pennsylvania, USA
- The One Health Microbiome Center, Huck Institute of the Life Sciences, The Pennsylvania State University, State College, Pennsylvania, USA
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6
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Klostermann CE, Endika MF, Kouzounis D, Buwalda PL, de Vos P, Zoetendal EG, Bitter JH, Schols HA. Presence of digestible starch impacts in vitro fermentation of resistant starch. Food Funct 2024; 15:223-235. [PMID: 38054370 PMCID: PMC10760408 DOI: 10.1039/d3fo01763j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 11/03/2023] [Indexed: 12/07/2023]
Abstract
Starch is an important energy source for humans. Starch escaping digestion in the small intestine will transit to the colon to be fermented by gut microbes. Many gut microbes express α-amylases that can degrade soluble starch, but only a few are able to degrade intrinsic resistant starch (RS), which is insoluble and highly resistant to digestion (≥80% RS). We studied the in vitro fermentability of eight retrograded starches (RS-3 preparations) differing in rapidly digestible starch content (≥70%, 35-50%, ≤15%) by a pooled adult faecal inoculum and found that fermentability depends on the digestible starch fraction. Digestible starch was readily fermented yielding acetate and lactate, whereas resistant starch was fermented much slower generating acetate and butyrate. Primarily Bifidobacterium increased in relative abundance upon digestible starch fermentation, whereas resistant starch fermentation also increased relative abundance of Ruminococcus and Lachnospiraceae. The presence of small fractions of total digestible starch (±25%) within RS-3 preparations influenced the fermentation rate and microbiota composition, after which the resistant starch fraction was hardly fermented. By short-chain fatty acid quantification, we observed that six individual faecal inocula obtained from infants and adults were able to ferment digestible starch, whereas only one adult faecal inoculum was fermenting intrinsic RS-3. This suggests that, in contrast to digestible starch, intrinsic RS-3 is only fermentable when specific microbes are present. Our data illustrates that awareness is required for the presence of digestible starch during in vitro fermentation of resistant starch, since such digestible fraction might influence and overrule the evalution of the prebiotic potential of resistant starches.
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Affiliation(s)
- Cynthia E Klostermann
- Biobased Chemistry and Technology, Wageningen University & Research, Wageningen, The Netherlands
| | - Martha F Endika
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Dimitrios Kouzounis
- Laboratory of Food Chemistry, Wageningen University & Research, The Netherlands.
| | - Piet L Buwalda
- Biobased Chemistry and Technology, Wageningen University & Research, Wageningen, The Netherlands
- Coöperatie Koninklijke AVEBE, Veendam, The Netherlands
| | - Paul de Vos
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Centre Groningen, The Netherlands
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, The Netherlands
| | - Johannes H Bitter
- Biobased Chemistry and Technology, Wageningen University & Research, Wageningen, The Netherlands
| | - Henk A Schols
- Laboratory of Food Chemistry, Wageningen University & Research, The Netherlands.
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Klostermann CE, Endika MF, Ten Cate E, Buwalda PL, de Vos P, Bitter JH, Zoetendal EG, Schols HA. Type of intrinsic resistant starch type 3 determines in vitro fermentation by pooled adult faecal inoculum. Carbohydr Polym 2023; 319:121187. [PMID: 37567720 DOI: 10.1016/j.carbpol.2023.121187] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/29/2023] [Accepted: 07/07/2023] [Indexed: 08/13/2023]
Abstract
Resistant starch (RS) results in relatively high health-beneficial butyrate levels upon fermentation by gut microbiota. We studied how physico-chemical characteristics of RS-3 influenced butyrate production during fermentation. Six highly resistant RS-3 substrates (intrinsic RS-3, 80-95 % RS) differing in chain length (DPn 16-76), Mw distribution (PI) and crystal type (A/B) were fermented in vitro by pooled adult faecal inoculum. All intrinsic RS-3 substrates were fermented to relatively high butyrate levels (acetate/butyrate ≤ 2.5), and especially fermentation of A-type RS-3 prepared from polydisperse α-1,4 glucans resulted in the highest relative butyrate amount produced (acetate/butyrate: 1). Analysis of the microbiota composition after fermentation revealed that intrinsic RS-3 stimulated primarily Lachnospiraceae, Bifidobacterium and Ruminococcus, but the relative abundances of these taxa differed slightly depending on the RS-3 physico-chemical characteristics. Especially intrinsic RS-3 of narrow disperse Mw distribution stimulated relatively more Ruminococcus. Selected RS fractions (polydisperse Mw distribution) obtained after pre-digestion were fermented to acetate and butyrate (ratio ≤ 1.8) and stimulated Lachnospiraceae and Bifidobacterium. This study indicates that especially the α-1,4 glucan Mw distribution dependent microstructure of RS-3 influences butyrate production and microbiota composition during RS-3 fermentation.
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Affiliation(s)
- C E Klostermann
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands; Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - M F Endika
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - E Ten Cate
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands; Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - P L Buwalda
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands; Coöperatie Koninklijke AVEBE u.a., P.O. Box 15, 9640 AA Veendam, the Netherlands
| | - P de Vos
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen and University Medical Centre Groningen, Groningen, Hanzeplein 1, 9700 RB Groningen, the Netherlands
| | - J H Bitter
- Biobased Chemistry and Technology, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands
| | - E G Zoetendal
- Laboratory of Microbiology, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, the Netherlands
| | - H A Schols
- Laboratory of Food Chemistry, Wageningen University & Research, Bornse Weilanden 9, 6708 WG Wageningen, the Netherlands.
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Raza H, Xu H, Zhou Q, He J, Zhu B, Li S, Wang M. A review of green methods used in starch-polyphenol interactions: physicochemical and digestion aspects. Food Funct 2023; 14:8071-8100. [PMID: 37647014 DOI: 10.1039/d3fo01729j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
The interactions of starch with lipids, proteins, and other major food components during food processing are inevitable. These interactions could result in the formation of V-type or non-V-type complexes of starch. The starch-lipid complexes have been intensively studied for over five decades, however, the complexes of starch and polyphenols are relatively less studied and are the subject of recent interest. The interactions of starch with polyphenols can affect the physicochemical properties and its digestibility. The literature has highlighted several green methods such as ultrasound, microwave, high pressure, extrusion, ball-milling, cold plasma etc., to assist interactions of starch with polyphenols. However, comprehensive information on green methods to induce starch-polyphenol interactions is still scarce. Therefore, in light of the importance and potential of starch-polyphenol complexes in developing functional foods with low digestion, this review has summarized the novel green methods employed in interactions of starch with flavonoids, phenolic acids and tannins. It has been speculated that flavonoids, phenolic acids, and tannins, among other types of polyphenols, may have anti-digestive activities and are also revealed for their interaction with starch to form either an inclusion or non-inclusion complex. Further information on the effects of these interactions on physicochemical parameters to understand the chemistry and structure of the complexes is also provided.
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Affiliation(s)
- Husnain Raza
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
- Department of Food Science, Faculty of Science, University of Copenhagen, Rolighedsvej 26, Frederiksberg C, DK, 1958, Denmark
| | - Hui Xu
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
- College of Civil and Transportation Engineering, Shenzhen University, Shenzhen 518060, China
| | - Qian Zhou
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Jiayi He
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Beiwei Zhu
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Siqian Li
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
| | - Mingfu Wang
- Shenzhen Key Laboratory of Food Nutrition and Health, Institute for Advanced Study and Institute for Innovative Development of Food Industry, Shenzhen University, Shenzhen 518060, China.
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9
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Bardhan P, Yang T. Sexual Dimorphic Interplays Between Gut Microbiota and Antihypertensive Drugs. Curr Hypertens Rep 2023; 25:163-172. [PMID: 37199902 PMCID: PMC10193343 DOI: 10.1007/s11906-023-01244-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2023] [Indexed: 05/19/2023]
Abstract
PURPOSE OF THE REVIEW The purpose of this study is to review the current literature regarding gut microbiota in blood pressure regulation and its interactions with antihypertensive drugs and to discuss how sex differences in gut microbiota contribute to sexual dimorphism of hypertension and treatment. RECENT FINDINGS The significance of gut microbiota in blood pressure regulation and hypertension etiology is growingly recognized. Targeting the dysbiotic microbiota is proposed to be a new therapeutic method. Recently, a few studies demonstrated that the gut microbiota is highly involved in the modulation of the efficacy of antihypertensive drugs, suggesting a novel mechanism by which gut microbiota plays a role in treatment-resistant hypertension. Furthermore, studies on sex differences in gut microbiota, etiology of hypertension, and sex bias in prescription of antihypertensive medications have revealed promising avenues in sexual dimorphism-based precision medicine. However, no scientific questions are ever raised on how sex differences in gut microbiota contribute to the sex specific responses of certain classes of antihypertensive drugs. Given the dynamics and complexity among individuals, precision medicine is proposed of great potential. We review current knowledge on the interactions between gut microbiota, hypertension, and antihypertensive drugs with an emphasis on sex as a crucial determinant. We propose that sex differences in gut microbiota be a research focus to advance our understanding of hypertension management.
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Affiliation(s)
- Pritam Bardhan
- Department of Physiology and Pharmacology, Center for Hypertension and Precision Medicine, College of Medicine and Life Sciences, The University of Toledo, Health Science Campus Block Health Science Bldg, Room 310, 3000 Arlington Ave., Toledo, OH, 43614, USA
| | - Tao Yang
- Department of Physiology and Pharmacology, Center for Hypertension and Precision Medicine, College of Medicine and Life Sciences, The University of Toledo, Health Science Campus Block Health Science Bldg, Room 310, 3000 Arlington Ave., Toledo, OH, 43614, USA.
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10
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Lee HB, Kim HR, Kang MC, Jeong D, Choi HD, Hong JS, Park HY. Structural characteristics of resistant starch-enriched rice during digestion and its effects on gut barrier function in high-fat induced obese mice. Food Res Int 2023; 170:113011. [PMID: 37316078 DOI: 10.1016/j.foodres.2023.113011] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/17/2023] [Accepted: 05/18/2023] [Indexed: 06/16/2023]
Abstract
Dietary supplementation with indigestible carbohydrates is known to improve the gut environment and prevent obesity and inflammatory diseases by modulating the gut microbiota. In previous work, we established a method for the production of resistant starch (RS)-enriched high-amylose rice (R-HAR) using citric acid. The present study aimed to evaluate changes in structural characteristics during digestion of R-HAR and its effects on the gut health. A three-step in vitro digestion and fermentation model was used, then, RS content, scanning electron microscopy, and branch chain length distribution were analyzed during in vitro digestion. During the digestion of R-HAR, the RS content increased, and the structure was predicted to have a greater impact on the gut microbiota and gut environment. To study the intestinal health effects of R-HAR, its anti-inflammatory and gut barrier integrity activities were assayed in HFD-induced mice. Intake of R-HAR suppressed colonic shortening and inflammatory responses induced by HFD. Furthermore, R-HAR exhibited gut barrier protective activity with an increase in tight junction protein levels. We determined that R-HAR may be a potentially beneficial intestinal environment improver, which may have various implications in the food industry as rice.
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Affiliation(s)
- Hye-Bin Lee
- Food Functionality Research Division, Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea
| | - Ha Ram Kim
- Research Division of Strategic Food Technology, Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea
| | - Min-Cheol Kang
- Research Division of Strategic Food Technology, Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea
| | - Duyun Jeong
- Department of Food and Food Service Industry, Kyungpook National University, Sangju 37224, Republic of Korea
| | - Hee-Don Choi
- Research Division of Strategic Food Technology, Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea
| | - Jung Sun Hong
- Research Division of Strategic Food Technology, Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea
| | - Ho-Young Park
- Food Functionality Research Division, Korea Food Research Institute, Jeollabuk-do 55365, Republic of Korea; Department of Food Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea.
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11
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Chen R, Zhang C, Xu F, Yu L, Tian F, Chen W, Zhai Q. Meta-analysis reveals gut microbiome and functional pathway alterations in response to resistant starch. Food Funct 2023. [PMID: 37194392 DOI: 10.1039/d3fo00845b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Resistant starch (RS) has the ability to improve the structure of the gut microbiota, regulate glucolipid metabolism and maintain the health of the human body, and has been extensively studied by many scholars in recent years. However, previous studies have provided a wide range of results on the differences in the gut microbiota after RS intake. In this article, we performed a meta-analysis of a total of 955 samples of 248 individuals from the seven studies included to compare the gut microbiota of the baseline and the end-point of RS intake. At the end-point, RS intake was related to a lower gut microbial α-diversity and higher relative abundance of Ruminococcus, Agathobacter, Faecalibacterium and Bifidobacterium, and the functional pathways of the gut microbiota related to the carbohydrate metabolism, lipid metabolism, amino acid metabolism and genetic information processing were higher. Different types of resistant starch and different populations led to varied responses on the gut microbiome. The altered gut microbiome may contribute to improve the blood glucose level and insulin resistance, which may be a potential treatment route for diabetes, obesity and other metabolic diseases.
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Affiliation(s)
- Ruimin Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Chengcheng Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Fusheng Xu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Leilei Yu
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Fengwei Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
- National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu, 214122, China
| | - Qixiao Zhai
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, 214122, China.
- School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu, 214122, China
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12
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Tian Y, Wang Y, Zhong Y, Møller MS, Westh P, Svensson B, Blennow A. Interfacial Catalysis during Amylolytic Degradation of Starch Granules: Current Understanding and Kinetic Approaches. Molecules 2023; 28:molecules28093799. [PMID: 37175208 PMCID: PMC10180094 DOI: 10.3390/molecules28093799] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 04/20/2023] [Accepted: 04/25/2023] [Indexed: 05/15/2023] Open
Abstract
Enzymatic hydrolysis of starch granules forms the fundamental basis of how nature degrades starch in plant cells, how starch is utilized as an energy resource in foods, and develops efficient, low-cost saccharification of starch, such as bioethanol and sweeteners. However, most investigations on starch hydrolysis have focused on its rates of degradation, either in its gelatinized or soluble state. These systems are inherently more well-defined, and kinetic parameters can be readily derived for different hydrolytic enzymes and starch molecular structures. Conversely, hydrolysis is notably slower for solid substrates, such as starch granules, and the kinetics are more complex. The main problems include that the surface of the substrate is multifaceted, its chemical and physical properties are ill-defined, and it also continuously changes as the hydrolysis proceeds. Hence, methods need to be developed for analyzing such heterogeneous catalytic systems. Most data on starch granule degradation are obtained on a long-term enzyme-action basis from which initial rates cannot be derived. In this review, we discuss these various aspects and future possibilities for developing experimental procedures to describe and understand interfacial enzyme hydrolysis of native starch granules more accurately.
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Affiliation(s)
- Yu Tian
- Department of Plant and Environmental Sciences, University of Copenhagen, DK-1871 Frederiksberg C, Denmark
| | - Yu Wang
- Enzyme and Protein Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Yuyue Zhong
- Department of Plant and Environmental Sciences, University of Copenhagen, DK-1871 Frederiksberg C, Denmark
| | - Marie Sofie Møller
- Applied Molecular Enzyme Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Peter Westh
- Interfacial Enzymology, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Birte Svensson
- Enzyme and Protein Chemistry, Department of Biotechnology and Biomedicine, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Andreas Blennow
- Department of Plant and Environmental Sciences, University of Copenhagen, DK-1871 Frederiksberg C, Denmark
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13
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Pugh JE, Cai M, Altieri N, Frost G. A comparison of the effects of resistant starch types on glycemic response in individuals with type 2 diabetes or prediabetes: A systematic review and meta-analysis. Front Nutr 2023; 10:1118229. [PMID: 37051127 PMCID: PMC10085630 DOI: 10.3389/fnut.2023.1118229] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 01/30/2023] [Indexed: 03/29/2023] Open
Abstract
Background Type 2 diabetes (T2D) diagnoses are predicted to reach 643 million by 2030, increasing incidences of cardiovascular disease and other comorbidities. Rapidly digestible starch elevates postprandial glycemia and impinges glycemic homeostasis, elevating the risk of developing T2D. Starch can escape digestion by endogenous enzymes in the small intestine when protected by intact plant cell walls (resistant starch type 1), when there is a high concentration of amylose (resistant starch type 2) and when the molecule undergoes retrogradation (resistant starch type 3) or chemical modification (resistant starch type 4). Dietary interventions using resistant starch may improve glucose metabolism and insulin sensitivity. However, few studies have explored the differential effects of resistant starch type. This systematic review and meta-analysis aims to compare the effects of the resistant starch from intact plant cell structures (resistant starch type 1) and resistant starch from modified starch molecules (resistant starch types 2-5) on fasting and postprandial glycemia in subjects with T2D and prediabetes. Methods Databases (PubMed, SCOPUS, Ovid MEDLINE, Cochrane, and Web of Science) were systematically searched for randomized controlled trials. Standard mean difference (SMD) with 95% confidence intervals (CI) were determined using random-effects models. Sub-group analyses were conducted between subjects with T2D versus prediabetes and types of resistant starch. Results The search identified 36 randomized controlled trials (n = 982), 31 of which could be included in the meta-analysis. Resistant starch type 1 and type 2 lowered acute postprandial blood glucose [SMD (95% CI) = -0.54 (-1.0, -0.07)] and [-0.96 (-1.61, -0.31)]. Resistant starch type 2 improved acute postprandial insulin response [-0.71 (-1.31, -0.11)]. In chronic studies, resistant starch type 1 and 2 lowered postprandial glucose [-0.38 (-0.73, -0.02), -0.29 (-0.53, -0.04), respectively] and resistant starch type 2 intake improved fasting glucose [-0.39 (-0.66, -0.13)] and insulin [-0.40 (-0.60, -0.21)]. Conclusion Resistant starch types 1 and 2 may influence glucose homeostasis via discrete mechanisms, as they appear to influence glycemia differently. Further research into resistant starch types 3, 4, and 5 is required to elucidate their effect on glucose metabolism. The addition of resistant starch as a dietary intervention for those with T2D or prediabetes may prevent further deterioration of glycemic control.
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Affiliation(s)
| | | | | | - Gary Frost
- Section for Nutrition Research, Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, Hammersmith Campus, London, United Kingdom
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14
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Paff A, Cockburn DW. Evaluating the efficacy of non-thermal microbial load reduction treatments of heat labile food components for in vitro fermentation experiments. PLoS One 2023; 18:e0283287. [PMID: 36943858 PMCID: PMC10030034 DOI: 10.1371/journal.pone.0283287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 03/03/2023] [Indexed: 03/23/2023] Open
Abstract
Increasingly, in vitro simulated colon fermentations are being used as a pre-clinical step to assess the impacts of foods and drugs on the gut microbiota in a cost-effective manner. One challenge in such systems is that they are potentially susceptible to the influences of contaminating microbes in test materials. Simulated gastric and intestinal digestion can relieve some of these concerns, however, live microbes may remain that can confound analysis. Autoclave treatment of test materials is the surest way to eliminate these microbes but presents problems when using heat labile components such as resistant starch. In this study, liquid chemical sterilant alternatives to moist heat sterilization were explored for treating pulse flours for use during in vitro simulated colon fermentation. Key attributes considered in chemical selection were accessibility, impact on treated food components, and effectiveness of the treatments for reducing microbial load. Three chemicals were selected for evaluation, bleach, alcohol, and hydrogen peroxide, at varying concentrations. Flours chosen for testing were from green lentil, field pea, chickpea, or sprouted green lentil. All treatments significantly reduced microbial loads, though there were still detectable levels of microbes after alcohol treatments. Furthermore, in vitro simulated colon fermentations of the treated pulses showed minimal difference from the untreated control both in terms of microbial composition and short chain fatty acid production. Scanning electron microscopy showed minimal impact of sterilization treatments on the gross structure of the pulse flours. Together these results suggest that bleach and hydrogen peroxide treatments can be effective nonthermal treatments to eliminate contaminating microbes in pulse flours without causing significant damage to starch and other fermentable substrates. This is thus also a promising treatment method for other starchy food substrates, though further testing is required.
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Affiliation(s)
- Andrew Paff
- Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
| | - Darrell W Cockburn
- Department of Food Science, College of Agricultural Sciences, The Pennsylvania State University, University Park, Pennsylvania, United States of America
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15
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Velraja S, Krishnan N. Effects of Chromium, Inositol and Resistant Starch Supplementation In Pcos: A Systematic Review. BIOMEDICAL AND BIOTECHNOLOGY RESEARCH JOURNAL (BBRJ) 2023. [DOI: 10.4103/bbrj.bbrj_21_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/15/2023]
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16
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Hybrid metagenome assemblies link carbohydrate structure with function in the human gut microbiome. Commun Biol 2022; 5:932. [PMID: 36076058 PMCID: PMC9458734 DOI: 10.1038/s42003-022-03865-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
Complex carbohydrates that escape small intestinal digestion, are broken down in the large intestine by enzymes encoded by the gut microbiome. This is a symbiotic relationship between microbes and host, resulting in metabolic products that influence host health and are exploited by other microbes. However, the role of carbohydrate structure in directing microbiota community composition and the succession of carbohydrate-degrading microbes, is not fully understood. In this study we evaluate species-level compositional variation within a single microbiome in response to six structurally distinct carbohydrates in a controlled model gut using hybrid metagenome assemblies. We identified 509 high-quality metagenome-assembled genomes (MAGs) belonging to ten bacterial classes and 28 bacterial families. Bacterial species identified as carrying genes encoding starch binding modules increased in abundance in response to starches. The use of hybrid metagenomics has allowed identification of several uncultured species with the functional potential to degrade starch substrates for future study. Longitudinal hybrid metagenomic analyses of a human stool sample reveal compositional and functional variation in response to six structurally-distinct carbohydrates, providing insight into how gut bacteria utilize various carbohydrate sources.
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17
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Frolova MS, Suvorova IA, Iablokov SN, Petrov SN, Rodionov DA. Genomic reconstruction of short-chain fatty acid production by the human gut microbiota. Front Mol Biosci 2022; 9:949563. [PMID: 36032669 PMCID: PMC9403272 DOI: 10.3389/fmolb.2022.949563] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/19/2022] [Indexed: 12/04/2022] Open
Abstract
Short-chain fatty acids (SCFAs) including acetate, formate, propionate, and butyrate are the end products of dietary fiber and host glycan fermentation by the human gut microbiota (HGM). SCFAs produced in the column are of utmost importance for host physiology and health. Butyrate and propionate improve gut health and play a key role in the neuroendocrine and immune systems. Prediction of HGM metabolic potential is important for understanding the influence of diet and HGM-produced metabolites on human health. We conducted a detailed metabolic reconstruction of pathways for the synthesis of SCFAs and L- and D-lactate, as additional fermentation products, in a reference set of 2,856 bacterial genomes representing strains of >800 known HGM species. The reconstructed butyrate and propionate pathways included four and three pathway variants, respectively, that start from different metabolic precursors. Altogether, we identified 48 metabolic enzymes, including five alternative enzymes in propionate pathways, and propagated their occurrences across all studied genomes. We established genomic signatures for reconstructed pathways and classified genomes according to their simplified binary phenotypes encoding the ability (“1”) or inability (“0”) of a given organism to produce SCFAs. The resulting binary phenotypes combined into a binary phenotype matrix were used to assess the SCFA synthesis potential of HGM samples from several public metagenomic studies. We report baseline and variance for Community Phenotype Indices calculated for SCFAs production capabilities in 16S metagenomic samples of intestinal microbiota from two large national cohorts (American Gut Project, UK twins), the Hadza hunter-gatherers, and the young children cohort of infants with high-risk for type 1 diabetes. We further linked the predicted SCFA metabolic capabilities with available SCFA concentrations both for in vivo fecal samples and in vitro fermentation samples from previous studies. Finally, we analyzed differential representation of individual SCFA pathway genes across several WGS metagenomic datasets. The obtained collection of SCFA pathway genes and phenotypes enables the predictive metabolic phenotype profiling of HGM datasets and enhances the in silico methodology to study cross-feeding interactions in the gut microbiomes.
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Affiliation(s)
- Maria S. Frolova
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Russia
| | - Inna A. Suvorova
- A.A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow, Russia
| | - Stanislav N. Iablokov
- A.A. Kharkevich Institute for Information Transmission Problems, Russian Academy of Sciences, Moscow, Russia
| | - Sergei N. Petrov
- Vavilov Institute of General Genetics, Russian Academy of Sciences, Moscow, Russia
| | - Dmitry A. Rodionov
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, United States
- *Correspondence: Dmitry A. Rodionov,
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18
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Sen T, Thummer RP. The Impact of Human Microbiotas in Hematopoietic Stem Cell and Organ Transplantation. Front Immunol 2022; 13:932228. [PMID: 35874759 PMCID: PMC9300833 DOI: 10.3389/fimmu.2022.932228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022] Open
Abstract
The human microbiota heavily influences most vital aspects of human physiology including organ transplantation outcomes and transplant rejection risk. A variety of organ transplantation scenarios such as lung and heart transplantation as well as hematopoietic stem cell transplantation is heavily influenced by the human microbiotas. The human microbiota refers to a rich, diverse, and complex ecosystem of bacteria, fungi, archaea, helminths, protozoans, parasites, and viruses. Research accumulating over the past decade has established the existence of complex cross-species, cross-kingdom interactions between the residents of the various human microbiotas and the human body. Since the gut microbiota is the densest, most popular, and most studied human microbiota, the impact of other human microbiotas such as the oral, lung, urinary, and genital microbiotas is often overshadowed. However, these microbiotas also provide critical and unique insights pertaining to transplantation success, rejection risk, and overall host health, across multiple different transplantation scenarios. Organ transplantation as well as the pre-, peri-, and post-transplant pharmacological regimens patients undergo is known to adversely impact the microbiotas, thereby increasing the risk of adverse patient outcomes. Over the past decade, holistic approaches to post-transplant patient care such as the administration of clinical and dietary interventions aiming at restoring deranged microbiota community structures have been gaining momentum. Examples of these include prebiotic and probiotic administration, fecal microbial transplantation, and bacteriophage-mediated multidrug-resistant bacterial decolonization. This review will discuss these perspectives and explore the role of different human microbiotas in the context of various transplantation scenarios.
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19
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Trachsel JM, Bearson BL, Kerr BJ, Shippy DC, Byrne KA, Loving CL, Bearson SMD. Short Chain Fatty Acids and Bacterial Taxa Associated with Reduced Salmonella enterica serovar I 4,[5],12:i:- Shedding in Swine Fed a Diet Supplemented with Resistant Potato Starch. Microbiol Spectr 2022; 10:e0220221. [PMID: 35532355 PMCID: PMC9241843 DOI: 10.1128/spectrum.02202-21] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 04/17/2022] [Indexed: 12/03/2022] Open
Abstract
Salmonella enterica serovar I 4,[5],12:i:- is a foodborne pathogen of concern because many isolates are multidrug-resistant (resistant to ≥3 antimicrobial classes) and metal tolerant. In this study, three in-feed additives were individually tested for their ability to reduce Salmonella I 4,[5],12:i:- shedding in swine: resistant potato starch (RPS), high amylose corn starch, and a fatty acid blend, compared with a standard control diet over 21 days. Only RPS-fed pigs exhibited a reduction in Salmonella fecal shedding, different bacterial community compositions, and different cecal short chain fatty acid (SCFA) profiles relative to control animals. Within the RPS treatment group, pigs shedding the least Salmonella tended to have greater cecal concentrations of butyrate, valerate, caproate, and succinate. Additionally, among RPS-fed pigs, several bacterial taxa (Prevotella_7, Olsenella, and Bifidobacterium, and others) exhibited negative relationships between their abundances of and the amount of Salmonella in the feces of their hosts. Many of these same taxa also had significant positive associations with cecal concentrations of butyrate, valerate, caproate, even though they are not known to produce these SCFAs. Together, these data suggest the RPS-associated reduction in Salmonella shedding may be dependent on the establishment of bacterial cross feeding interactions that result in the production of certain SCFAs. However, directly feeding a fatty acid mix did not replicate the effect. RPS supplementation could be an effective means to reduce multidrug-resistant (MDR) S. enterica serovar I 4,[5],12:i:- in swine, provided appropriate bacterial communities are present in the gut. IMPORTANCE Prebiotics, such as resistant potato starch (RPS), are types of food that help to support beneficial bacteria and their activities in the intestines. Salmonella enterica serovar I 4,[5],12:i:- is a foodborne pathogen that commonly resides in the intestines of pigs without disease, but can make humans sick if unintentionally consumed. Here we show that in Salmonella inoculated pigs, feeding them a diet containing RPS altered the colonization and activity of certain beneficial bacteria in a way that reduced the amount of Salmonella in their feces. Additionally, within those fed RPS, swine with higher abundance of these types of beneficial bacteria had less Salmonella I 4,[5],12:i:- in their feces. This work illustrates likely synergy between the prebiotic RPS and the presence of certain gut microorganisms to reduce the amount of Salmonella in the feces of pigs and therefore reduce the risk that humans will become ill with MDR Salmonella serovar I 4,[5],12:i:-.
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Affiliation(s)
- Julian M. Trachsel
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA, ARS, Ames, Iowa, USA
| | - Bradley L. Bearson
- Agroecosystems Management Research Unit, National Laboratory for Agriculture and the Environment, USDA, ARS, Ames, Iowa, USA
| | - Brian J. Kerr
- Agroecosystems Management Research Unit, National Laboratory for Agriculture and the Environment, USDA, ARS, Ames, Iowa, USA
| | - Daniel C. Shippy
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA, ARS, Ames, Iowa, USA
| | - Kristen A. Byrne
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA, ARS, Ames, Iowa, USA
| | - Crystal L. Loving
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA, ARS, Ames, Iowa, USA
| | - Shawn M. D. Bearson
- Food Safety and Enteric Pathogens Research Unit, National Animal Disease Center, USDA, ARS, Ames, Iowa, USA
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20
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The regulatory effect of fermented black barley on the gut microbiota and metabolic dysbiosis in mice exposed to cigarette smoke. Food Res Int 2022; 157:111465. [DOI: 10.1016/j.foodres.2022.111465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/31/2022] [Accepted: 06/01/2022] [Indexed: 11/17/2022]
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21
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DeMartino P, Johnston EA, Petersen KS, Kris-Etherton PM, Cockburn DW. Additional Resistant Starch from One Potato Side Dish per Day Alters the Gut Microbiota but Not Fecal Short-Chain Fatty Acid Concentrations. Nutrients 2022; 14:nu14030721. [PMID: 35277080 PMCID: PMC8840755 DOI: 10.3390/nu14030721] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 01/11/2023] Open
Abstract
The composition of the gut microbiota and their metabolites are associated with cardiometabolic health and disease risk. Intake of dietary fibers, including resistant starch (RS), has been shown to favorably affect the health of the gut microbiome. The aim of this research was to measure changes in the gut microbiota and fecal short-chain fatty acids as part of a randomized, crossover supplemental feeding study. Fifty participants (68% female, aged 40 ± 13 years, BMI 24.5 ± 3.6 kg/m2) completed this study. Potato dishes (POT) contained more RS than refined grain dishes (REF) (POT: 1.31% wet basis (95% CI: 0.94, 1.71); REF: 0.73% wet basis (95% CI: 0.34, 1.14); p = 0.03). Overall, potato dish consumption decreased alpha diversity, but beta diversity was not impacted. Potato dish consumption was found to increase the abundance of Hungatella xylanolytica, as well as that of the butyrate producing Roseburia faecis, though fecal butyrate levels were unchanged. Intake of one potato-based side dish per day resulted in modest changes in gut microbiota composition and diversity, compared to isocaloric intake of refined grains in healthy adults. Studies examining foods naturally higher in RS are needed to understand microbiota changes in response to dietary intake of RS and associated health effects.
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Affiliation(s)
- Peter DeMartino
- Department of Food Science, Pennsylvania State University, University Park, PA 16802, USA;
| | - Emily A. Johnston
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (E.A.J.); (K.S.P.); (P.M.K.-E.)
| | - Kristina S. Petersen
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (E.A.J.); (K.S.P.); (P.M.K.-E.)
- Department of Nutritional Sciences, Texas Tech University, Lubbock, TX 79409, USA
| | - Penny M. Kris-Etherton
- Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA; (E.A.J.); (K.S.P.); (P.M.K.-E.)
| | - Darrell W. Cockburn
- Department of Food Science, Pennsylvania State University, University Park, PA 16802, USA;
- Correspondence: ; Tel.: +1-814-863-2950
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