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Wang W, Chang J, Zhang Z, Liu H, He L, Liu Y, Kang J, Goff HD, Li Z, Guo Q. The galactomannan-EGCG physical complex: Effect of branching degree and molecular weight on structural and physiological properties. Carbohydr Polym 2024; 343:122447. [PMID: 39174126 DOI: 10.1016/j.carbpol.2024.122447] [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: 04/25/2024] [Revised: 06/09/2024] [Accepted: 06/27/2024] [Indexed: 08/24/2024]
Abstract
Polysaccharides and polyphenols are bioactive components that co-exist in many plant foods. Their binary interaction in terms of the structure-function relationships, however, has not been well clarified. This study elucidated the correlation between the structural and physiological properties of galactomannan (GM) -catechin monomer complexes and GM with different branching or molecular weight (Mw). Results indicated that locus bean gum with lower branching degree (Gal/Man is 0.259) bound more readily to EGCG with adsorption rate of 19.42 %. EGCG and ECG containing galloyl groups were more inclined to form hydrogen bonds with GMs, significantly improving the adsorption by GMs. The introduction of EGCG could enhance the antioxidant activity and starch digestion inhibition of GM, which positively correlated with the adsorption capacity of EGCG. The guar gum (GG) with higher Mw (7384.3 kDa) could transport 71.51 % EGCG into the colon, while the retention rate of EGCG reaching the colon alone was only 46.33 %. Conversely, GM-EGCG complex with lower Mw (6.9 kDa) could be readily utilized by gut microbiota, and increased production of short-chain fatty acids (SCFAs). This study elucidated the structure-properties relationship of GM-EGCG complexes, and provide a new idea for the development and precision nutrition of polysaccharides-polyphenol complexes fortified functional foods.
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Affiliation(s)
- Wan Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Junhui Chang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Zhihui Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Haijing Liu
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Li He
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yan Liu
- College of Food and Health, Zhejiang Agriculture and Forestry University, No. 666, Wusu Road, Linan District, 311300 Hangzhou, Zhejiang Province, China
| | - Ji Kang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - H Douglas Goff
- Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
| | - Zhenjing Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China.
| | - Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, 300457, China.
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Galgano S, Kettle H, Free A, Houdijk JGM. Estimating the contribution of the porcine fecal core microbiota to metabolite production via mathematical modeling and in vitro fermentation. mSystems 2024; 9:e0036623. [PMID: 38059648 PMCID: PMC10805034 DOI: 10.1128/msystems.00366-23] [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: 04/14/2023] [Accepted: 11/03/2023] [Indexed: 12/08/2023] Open
Abstract
The swine gut microbiota is a complex ecosystem found throughout the gastrointestinal tract, with multiple exchanges with the host and whose composition is linked to both external and internal factors, such as diet or breed. Diet, probiotic, or prebiotic interventions have been designed to boost beneficial host-microbiota interactions, such as the production of anti-inflammatory molecules, or the fermentation of otherwise undigested resources. In parallel, a smaller microbial population, shared among the same host species, independent of external or internal factors, has been described and defined as the "core microbiota." Therapies targeting the core microbiota could possibly lead to more precise and long-lasting effects. However, the metabolic role of the porcine core microbiota, especially in relation to the rest of the microbial community, is currently missing. We present here the first dynamic model of the porcine core microbiota, which we used to estimate the core-microbiota metabolite production and to forecast the effect of a synbiotic intervention targeting the core genera of the core microbiota. We developed a community model in which a total of 17 microbial groups were established based on culture-based information of representative species. First, the model parameters were estimated, and the resulting model simulations were compared favorably with in vitro experimentation. The model was then used to predict the microbial dynamics of the core and non-core members under different experimental conditions. Therefore, it was able to theorize the main-metabolite core microbiota contribution, hypothesizing that it could be mainly responsible for acetate and propionate, but not for butyrate production.IMPORTANCECurrently, little information is present in the literature to describe the generic metabolic role of the porcine core microbiota or to inform on the effect of interventions targeting the core genera. Moreover, both in vitro and in vivo experimentations aiming to explore the core microbiota dynamics are technically demanding, expensive, or restricted by ethical considerations. Modeling approaches can be used as an initial exploratory tool to develop hypotheses for targeted experimentation. Our mathematical model provides initial information on the microbial and metabolite dynamics of the core microbiota in relation to diet and therapeutic intervention.
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Affiliation(s)
- Salvatore Galgano
- Monogastric Science Research Centre, Scotland's Rural College, Edinburgh, Scotland, United Kingdom
| | - Helen Kettle
- Biomathematics and Statistics Scotland, Edinburgh, Scotland, United Kingdom
| | - Andrew Free
- School of Biological Sciences, University of Edinburgh, Edinburgh, United Kingdom
| | - Jos G. M. Houdijk
- Monogastric Science Research Centre, Scotland's Rural College, Edinburgh, Scotland, United Kingdom
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Zhao YX, Huang L, Wu DT, Li J, Lei J, Fu MX, Zhang Q, Qin W. Catabolism of Dictyophora indusiata Polysaccharide and Its Impacts on Gut Microbial Composition during In Vitro Digestion and Microbial Fermentation. Foods 2023; 12:foods12091909. [PMID: 37174446 PMCID: PMC10178076 DOI: 10.3390/foods12091909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 04/17/2023] [Accepted: 05/05/2023] [Indexed: 05/15/2023] Open
Abstract
Dictyophora indusiata is one of the most famous edible mushrooms in China. D. indusiata polysaccharide (DP) has attracted increasing attention because of its multiple beneficial effects. In this study, the in vitro simulated digestion and microbial fermentation were designed to reveal the potential catabolic property of DP and its impacts on the modulation of gut microbial composition. The results showed that the reducing sugar content, total polysaccharides content, molecular weight, and rheological property of DP were not significantly altered under in vitro simulated digestive conditions. However, the molecular weight, apparent viscosity, and total polysaccharides content of indigestible DP (DPI) significantly decreased during in vitro fecal fermentation, and the reducing sugar content and the release of free monosaccharides notably increased, suggesting that DP could be degraded and used by gut microbiota. Additionally, the relative abundances of several beneficial bacteria, such as Bacteroides, Catenibacterium, Parabacteroides, and Megamonas, increased significantly, indicating that DP can regulate the composition and abundance of gut microbiota. Moreover, DP could also promote the production of SCFAs, thus changing the acid-base environment of the large intestine. The results of this study are beneficial for deeply clarifying the catabolic behavior of DP in the gastrointestinal tract, which can provide a theoretical basis for developing microbiota-directed products based on DP.
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Affiliation(s)
- Yun-Xuan Zhao
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Ling Huang
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Ding-Tao Wu
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jie Li
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Jing Lei
- Institute for Advanced Study, Chengdu University, Chengdu 610106, China
| | - Meng-Xi Fu
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Qing Zhang
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
| | - Wen Qin
- Institute of Food Processing and Safety, College of Food Science, Sichuan Agricultural University, Ya'an 625014, China
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Basak S, Annapure US. The potential of subcritical water as a “green” method for the extraction and modification of pectin: A critical review. Food Res Int 2022; 161:111849. [DOI: 10.1016/j.foodres.2022.111849] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/11/2022] [Accepted: 08/21/2022] [Indexed: 01/25/2023]
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Kleigrewe K, Haack M, Baudin M, Ménabréaz T, Crovadore J, Masri M, Beyrer M, Andlauer W, Lefort F, Dawid C, Brück TB, Brück WM. Dietary Modulation of the Human Gut Microbiota and Metabolome with Flaxseed Preparations. Int J Mol Sci 2022; 23:ijms231810473. [PMID: 36142393 PMCID: PMC9499670 DOI: 10.3390/ijms231810473] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 09/05/2022] [Accepted: 09/06/2022] [Indexed: 11/16/2022] Open
Abstract
Flaxseeds are typically consumed either as whole flaxseed, ground flaxseed, flaxseed oil, partially defatted flaxseed meal, or as a milk alternative. They are considered a rich source of vitamins, minerals, proteins and peptides, lipids, carbohydrates, lignans, and dietary fiber, which have shown hypolipidemic, antiatherogenic, anticholesterolemic, and anti-inflammatory property activity. Here, an in vitro batch culture model was used to investigate the influence of whole milled flaxseed and partially defatted milled flaxseed press cake on the gut microbiota and the liberation of flaxseed bioactives. Microbial communities were profiled using 16S rRNA gene-based high-throughput sequencing with targeted mass spectrometry measuring lignan, cyclolinopeptide, and bile acid content and HPLC for short-chain fatty acid profiles. Flaxseed supplementation decreased gut microbiota richness with Firmicutes, Proteobacteria, and Bacteroidetes becoming the predominant phyla. Secoisolariciresinol, enterodiol, and enterolactone were rapidly produced with acetic acid, butyric acid, and propionic acid being the predominant acids after 24 h of fermentation. The flaxseed press cake and whole flaxseed were equivalent in microbiota changes and functionality. However, press cake may be superior as a functional additive in a variety of foods in terms of consumer acceptance as it would be more resistant to oxidative changes.
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Affiliation(s)
- Karin Kleigrewe
- Bavarian Center for Biomolecular Mass Spectrometry, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
| | - Martina Haack
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, Technical University of Munich, Garching b., 85748 München, Germany
| | - Martine Baudin
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - Thomas Ménabréaz
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - Julien Crovadore
- Plants and Pathogens Group, Research Institute Land Nature and Environment, Geneva School of Engineering, Architecture and Landscape (HEPIA), HES-SO University of Applied Sciences and Arts Western Switzerland, 1254 Jussy, Switzerland
| | - Mahmoud Masri
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, Technical University of Munich, Garching b., 85748 München, Germany
| | - Michael Beyrer
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - Wilfried Andlauer
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
| | - François Lefort
- Plants and Pathogens Group, Research Institute Land Nature and Environment, Geneva School of Engineering, Architecture and Landscape (HEPIA), HES-SO University of Applied Sciences and Arts Western Switzerland, 1254 Jussy, Switzerland
| | - Corinna Dawid
- Bavarian Center for Biomolecular Mass Spectrometry, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
- Chair of Food Chemistry and Molecular Sensory Science, School of Life Sciences, Technical University of Munich, 85354 Freising, Germany
| | - Thomas B. Brück
- Werner Siemens-Chair of Synthetic Biotechnology, Department of Chemistry, Technical University of Munich, Garching b., 85748 München, Germany
| | - Wolfram M. Brück
- Institute of Life Technologies, School of Engineering, HES-SO University of Applied Sciences and Arts Western Switzerland Valais-Wallis, 1950 Sion, Switzerland
- Correspondence: ; Tel.: +41-58-606-86-64
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Guo Q, Shan Z, Shao Y, Wang N, Qian K, Goff HD, Wang Q, Cui SW, Ding HH. Conformational Properties of Flaxseed Rhamnogalacturonan-I and Correlation between Primary Structure and Conformation. Polymers (Basel) 2022; 14:polym14132667. [PMID: 35808711 PMCID: PMC9269093 DOI: 10.3390/polym14132667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Revised: 06/17/2022] [Accepted: 06/17/2022] [Indexed: 01/30/2023] Open
Abstract
The pectic polysaccharides extracted from flaxseed (Linum usitatissiumum L.) mucilage and kernel were characterized as rhamnogalacturonan-I (RG-I). In this study, the conformational characteristics of RG-I fractions from flaxseed mucilage and kernel were investigated, using a Brookhaven multi-angle light scattering instrument (batch mode) and a high-performance size exclusion chromatography (HPSEC) system coupled with Viscotek tetra-detectors (flow mode). The Mw of flaxseed mucilage RG-I (FM-R) was 285 kDa, and the structure-sensitive parameter (ρ) value of FM-R was calculated as 1.3, suggesting that the FM-R molecule had a star-like conformation. The Mw of flaxseed kernel RG-I (FK-R) was 550 kDa, and the structure-sensitive parameter (ρ) values ranged from 0.90 to 1.21, suggesting a sphere to star-like conformation with relatively higher segment density. The correlation between the primary structure and conformation of RG-I was further discussed to better understand the structure–function relationship, which helps the scale-up applications of pectins in food, pharmaceutical, or cosmetic industries.
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Affiliation(s)
- Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; (Q.G.); (Z.S.); (Y.S.); (N.W.)
| | - Zhengxin Shan
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; (Q.G.); (Z.S.); (Y.S.); (N.W.)
| | - Yanhui Shao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; (Q.G.); (Z.S.); (Y.S.); (N.W.)
| | - Nifei Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; (Q.G.); (Z.S.); (Y.S.); (N.W.)
| | - Keying Qian
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph, ON N1G 2W1, Canada; (K.Q.); (H.D.G.); (S.W.C.)
| | - H. Douglas Goff
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph, ON N1G 2W1, Canada; (K.Q.); (H.D.G.); (S.W.C.)
| | - Qi Wang
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph, ON N1G 5C9, Canada;
| | - Steve W. Cui
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph, ON N1G 2W1, Canada; (K.Q.); (H.D.G.); (S.W.C.)
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph, ON N1G 5C9, Canada;
| | - Huihuang H. Ding
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph, ON N1G 2W1, Canada; (K.Q.); (H.D.G.); (S.W.C.)
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph, ON N1G 5C9, Canada;
- Correspondence:
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In Vitro Fermentability of Soybean Oligosaccharides from Wastewater of Tofu Production. Polymers (Basel) 2022; 14:polym14091704. [PMID: 35566873 PMCID: PMC9103689 DOI: 10.3390/polym14091704] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 04/06/2022] [Accepted: 04/11/2022] [Indexed: 12/04/2022] Open
Abstract
Soybean oligosaccharides (SBOS) isolated from wastewater of tofu production were studied in terms of their structural characteristics and in vitro fermentation by human fecal inocula. Three sub-fractions named Z1 (14%), Z2 (13%), and Z3 (17%) were obtained by Sephadex G-15 column separation. Z1 contained mainly stachyose; Z2 and Z3 contained stachyose, raffinose, and sucrose with different relative percentages. The in vitro batch fermentation model of human intestinal bacteria including 0, 12, 24, and 48 h was used to investigate the fermentation characteristics of SBOS. According to the results, during the fermentation process, the molecular weight of oligosaccharides decreased significantly with increasing fermentation time, indicating that oligosaccharides could be utilized and degraded by the colonic microbiota. Furthermore, SBOS could significantly promote the production of short-chain fatty acids (SCFAs), especially acetic, propionic, and butyric acids. SBOS increased the abundance of Firmicutes, while that of Proteobacteria was decreased. Additionally, SBOS could promote the proliferation of Dialister, Bacteroides, and Akkermansia at the genus level. Therefore, SBOS can be potentially used as prebiotic promoting gut health.
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Ruiz de la Bastida A, Peirotén Á, Langa S, Álvarez I, Arqués JL, Landete JM. Metabolism of flavonoids and lignans by lactobacilli and bifidobacteria strains improves the nutritional properties of flaxseed-enriched beverages. Food Res Int 2021; 147:110488. [PMID: 34399484 DOI: 10.1016/j.foodres.2021.110488] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/14/2021] [Accepted: 05/23/2021] [Indexed: 11/26/2022]
Abstract
Flaxseed (Linum usitatissimum L.) is of interest as functional food because of the presence of compounds in its composition with potential health benefits, such as fatty acid omega-3, fiber, lignans and flavonoids. The bioactivity of lignans and flavonoids depends greatly on bacterial metabolism. Previously, lactobacilli and bifidobacteria strains were described to produce enterolignans and bioactive flavonoids (herbacetin, quercetin, quercetagetin, kaempferol, naringenin and eriodictyol) from flaxseed extracts and/or from secoisolariciresinol (SECO) in culture medium. In this work, cow's milk and soy beverage were supplemented with flaxseed extracts and fermented with selected lactobacilli and bifidobacteria strains. Lacticaseibacillus rhamnosus INIA P224, Limosilactobacillus mucosae INIA P508 and Lactiplantibacillus plantarum ESI 144 were capable of producing enterolactone (ENL) in both beverages supplemented with flaxseed, in addition to matairesinol and the flavonoids daidzein, genistein, glycitein, quercetin, naringenin, kaempferol and eriodictyol. On the other hand, Bifidobacterium breve INIA P367, Bifidobacterium pseudocatenulatum INIA P815 and Bifidobacterium pseudocatenulatum INIA P946 were able to produce quercetin, quercetagetin and high concentrations of herbacetin and SECO, in addition to pinoresinol, matairesinol, daidzein, genistein, naringenin, kaempferol and eriodictyol. The co-incubation of Lacticaseibacillus paracasei INIA P74 and Ligilactobacillus salivarius INIA P183 with Lactococcus lactis MG1363 harboring the food grade vector pLEB590.gly913, facilitated the production of ENL in soy beverage enriched with flaxseed. In this work, it is demonstrated how lactobacilli and bifidobacteria strains can improve the nutritional properties of flaxseed-enriched beverages, providing metabolites of great interest for human health.
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Affiliation(s)
- Ana Ruiz de la Bastida
- Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de La Coruña Km 7.5, 28040 Madrid, Spain
| | - Ángela Peirotén
- Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de La Coruña Km 7.5, 28040 Madrid, Spain
| | - Susana Langa
- Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de La Coruña Km 7.5, 28040 Madrid, Spain
| | - Inmaculada Álvarez
- Unidad de Servicio de Técnicas Analíticas, Instrumentales y Microbiología (USTA), Instituto de Ciencia y Tecnología de los Alimentos y Nutrición (ICTAN-CSIC), José Antonio Novais, 10, 28040 Madrid, Spain
| | - Juan Luis Arqués
- Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de La Coruña Km 7.5, 28040 Madrid, Spain
| | - José Mª Landete
- Departamento de Tecnología de Alimentos, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de La Coruña Km 7.5, 28040 Madrid, Spain.
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Guo Q, Xiao X, Li C, Kang J, Liu G, Goff HD, Wang C. Catechin-grafted arabinoxylan conjugate: Preparation, structural characterization and property investigation. Int J Biol Macromol 2021; 182:796-805. [PMID: 33865890 DOI: 10.1016/j.ijbiomac.2021.03.190] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/17/2021] [Accepted: 03/29/2021] [Indexed: 01/27/2023]
Abstract
In this study, a high molecular weight arabinoxylan (AX, Mw: 694 kDa) from wheat bran was alkaline extracted and covalently linked with Catechin (CA) by free radical catalytic reaction. Comparing to AX, arabinoxylan-catechin (AX-CA) conjugates demonstrated an extra UV-vis absorption peak at 274 nm, a new FT-IR absorption band at 1516 cm-1 and new proton signals at 6.5-7.5 ppm, which all confirmed the covalently linked structure. Grafting CA onto AX not only decreased the molecular weight, thermal stability and apparent viscosity of AX, but also enhanced its inhibition effects on starch digestibility in vitro. The in vitro fermentation test with pig feces showed that the degradation & utilization rate of AX, the total short-chain fatty acid (SCFA) and acetic acid levels produced all were significantly delayed after grafting. This study provided a novel approach to synthesize AX-CA conjugates that could be a novel dietary fiber of enhanced functional/bioactive properties using in the fields of functional foods and medicine.
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Affiliation(s)
- Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin 300457, China.
| | - Xingyue Xiao
- State Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin 300457, China.
| | - Chunrong Li
- State Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin 300457, China.
| | - Ji Kang
- State Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin 300457, China.
| | - Guorong Liu
- Beijing Technology & Business University, Beijing 100048, China.
| | - H Douglas Goff
- Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada.
| | - Changlu Wang
- State Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology), Ministry of Education, Tianjin 300457, China.
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Adorian TJ, Mombach PI, Fagundes MB, Wagner R, Pianesso D, Telles YB, Dalcin MO, da Silva LP. Linseed fibers modulate the production of short-chain fatty acids and improve performance and plasma and skin mucus parameters of silver catfish (Rhamdia quelen). FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:2355-2366. [PMID: 33009652 DOI: 10.1007/s10695-020-00885-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/27/2020] [Indexed: 06/11/2023]
Abstract
This study was conducted to evaluate the prebiotic action of distinct linseed fibers on diets for silver catfish (Rhamdia quelen) juvenile. For this, soluble and insoluble fractions of linseed fiber were concentrated separately and combined in four ratios (1:0.5, 1:1, 1:2, 1:4), which were added in diets and evaluated along with a control diet. After 45 days receiving the experimental diets, the animals were submitted to biometry for data collection and samples. The experimental design was completely randomized, data were submitted to analysis of variance, and the means were compared by Tukey's test (P < 0.05). Fish performance was higher for the group that received the 1:2 and 1:4 diets. The production of intestinal acetic acid was higher in fish fed on the 1:2 diet, and butyric acid was higher with 1:4 diet and the propionic acid with the control diet. The control diet led to lower counts of goblet cells. Total proteins and globulins in plasma, mucoprotein, total immunoglobulins, and cutaneous mucus pH were higher in fish fed on diets 1:2 and 1:4. Cortisol levels and intestinal pH were lower in these treatments. The linseed fiber intake increased total plasma immunoglobulins and plasma alkaline phosphatase activity and in mucus. It was concluded that the use of 1:2 and 1:4 soluble fiber/insoluble linseed in the diet beneficially modulates the production of short-chain fatty acids in the digesta, with reflection on growth performance, number of goblet cells in the intestinal epithelium, and improvement in plasma and skin mucus parameters of fish.
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Affiliation(s)
- Taida Juliana Adorian
- Department of Animal Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil.
| | - Patrícia Inês Mombach
- Department of Animal Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
| | - Mariane Bittencourt Fagundes
- Department of Food and Science Technology, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
| | - Roger Wagner
- Department of Food and Science Technology, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
| | - Dirleise Pianesso
- Department of Animal Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
| | - Yuri Bohnenberger Telles
- Laboratory of Systematics, Entomology and Biogeography, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
| | - Marina Osmari Dalcin
- Department of Animal Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
| | - Leila Picolli da Silva
- Department of Animal Science, Federal University of Santa Maria, Santa Maria, Rio Grande do Sul. AV. Roraima n° 1000, Cidade Universitária, Bairro Camobi, Santa Maria, RS, CEP: 97105-900, Brazil
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Gao Y, Guo Q, Zhang K, Wang N, Li C, Li Z, Zhang A, Wang C. Polysaccharide from Pleurotus nebrodensis: Physicochemical, structural characterization and in vitro fermentation characteristics. Int J Biol Macromol 2020; 165:1960-1969. [PMID: 33080265 DOI: 10.1016/j.ijbiomac.2020.10.071] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 09/20/2020] [Accepted: 10/10/2020] [Indexed: 02/06/2023]
Abstract
A high Mw (5012 kDa) polysaccharide (PNPS) from the fruiting body of Pleurotus nebrodensis was isolated using water extraction followed by ethanol precipitation. The structural characteristics and in vitro fermentation behaviors of this polysaccharide was investigated. Chemical composition analysis showed the total sugar content of PNPS was up to 97.20 ± 1.80 wt%. Monosaccharide composition analysis showed PNPS contained mainly glucose (89.22 ± 5.70 mol%) while small percentage of mannose (5.60 ± 0.74 mol%) and galactose (5.18 ± 0.33 mol%) were also detected. According to the linkage pattern analysis (methylation analysis), PNPS comprised mainly 4-β-D-Glcp (58.90 mol%), while other residues including α-D-Glcp, 6-α-D-Galp, 3,6-α-D-Manp, 3-β-D-Glcp and 6-α-D-Glcp were detected with a comparable amount. Combined with results from 1D and 2D NMR spectrum, a proposed structure of PNPS was presented. In vitro fermentation of PNPS by gut microbiota showed total SCFA production of all treatment groups was higher than negative control group (NC) significantly (p < 0.05) after 48 h of fermentation. The formation of SCFAs was mainly acetic acid, followed by propionic acid and butyric acid, and the pH was decreased from 6.95 to 4.70. After 72 h, the total sugar content decreased from 5.813 ± 0.87 mg/L to 0.23 ± 0.065 mg/L, and the molecular weight of PNPS decreased.
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Affiliation(s)
- Yingying Gao
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Qingbin Guo
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China.
| | - Kunlin Zhang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Nifei Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Chunrong Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Zhenjing Li
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China.
| | - Ailin Zhang
- College of food science and Bioengineering, Tianjin Agricultural University, Tianjin 300384, China.
| | - Changlu Wang
- State Key Laboratory of Food Nutrition and Safety, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China; Key Laboratory of Food Nutrition and Safety (Tianjin University of Science and Technology), Ministry of Education, Tianjin 300457, China.
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Li X, Guo R, Wu X, Liu X, Ai L, Sheng Y, Song Z, Wu Y. Dynamic digestion of tamarind seed polysaccharide: Indigestibility in gastrointestinal simulations and gut microbiota changes in vitro. Carbohydr Polym 2020; 239:116194. [DOI: 10.1016/j.carbpol.2020.116194] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 03/07/2020] [Accepted: 03/18/2020] [Indexed: 02/06/2023]
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Cereal-derived arabinoxylans: Structural features and structure–activity correlations. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2019.12.016] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ndou SP, Kiarie E, Nyachoti CM. Flaxseed meal and oat hulls supplementation: impact on predicted production and absorption of volatile fatty acids and energy from hindgut fermentation in growing pigs. J Anim Sci 2019; 97:302-314. [PMID: 30321361 PMCID: PMC6313112 DOI: 10.1093/jas/sky399] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 10/09/2018] [Indexed: 12/23/2022] Open
Abstract
A combination of in vivo (ileal cannulated pigs) and in vitro (fecal inoculum-based incubation) methodologies were used to predict the effects of dietary supplementation with soluble or insoluble dietary fiber on hindgut VFA production and absorption. Energy contribution from hindgut VFA and apparent ileal (AID) and total tract (ATTD) digestibility of energy and DM was also investigated. Twelve ileal cannulated Genesus barrows (initial BW: 35.1 ± 0.44 kg) were allocated to 1 of the 3 corn-soybean meal-based diets without (control), or with flaxseed meal (FM) or oat hulls (OH) in a 2-period cross-over design. Flaxseed meal and oat hulls were used as sources of soluble and insoluble fiber, respectively. In each period, 4 pigs were offered 1 of the 3 diets, for 12 d followed by fecal (day 13 and 14) and ileal digesta collection (day 15 and 16) (n = 8). Ileal digesta were collected, freeze-dried, and subjected to in vitro fermentation using fecal inoculum, to predict production and absorption of VFA and energy production, and digestibility of DM and energy. The quantity of acetic, propionic, butyric, and valeric acids produced by in vitro fermentation was higher (P < 0.05) for the diet containing flaxseed meal compared with the control and OH diets. The predicted quantity of VFA produced and absorbed in the hindgut was greater (P < 0.05) in pigs that consumed the FM diet than those fed the control or OH diet. Pigs fed the control diet had greater (P < 0.05) AID and ATTD of DM than pigs offered the OH or FM diet. The determined disappearance of DM was lower (P < 0.05) in pigs fed the control and OH diets than in pigs that consumed the FM diet. The quantity of digested energy in the upper gut was reduced (P < 0.05) more in pigs fed the OH diet than in pigs fed the FM diet. The consumption of the FM diet increased (P < 0.05) the quantity of digested energy, energy produced and absorbed from VFA in the hindgut, and the percentage contribution of VFA from fermentation to total tract digestible energy, compared with the control and OH diets. In conclusion, dietary supplementation with insoluble fiber from oat hulls reduced ileal digested energy more than soluble fiber from flaxseed meal. Addition of soluble fiber to pig diets increased the energy contribution from VFA produced by hindgut fermentation to the total tract digestible energy, compared with dietary addition of insoluble fiber.
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Affiliation(s)
- Saymore P Ndou
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
| | - Elijah Kiarie
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Charles M Nyachoti
- Department of Animal Science, University of Manitoba, Winnipeg, MB, Canada
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Ding HH, Qian K, Goff HD, Wang Q, Cui SW. Structural and conformational characterization of arabinoxylans from flaxseed mucilage. Food Chem 2018; 254:266-271. [PMID: 29548453 DOI: 10.1016/j.foodchem.2018.01.159] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 01/08/2018] [Accepted: 01/23/2018] [Indexed: 10/18/2022]
Abstract
The structure of neutral fraction gum from flaxseed mucilage (FM-NFG) was studied for better understanding of the relationship between primary structure and conformation. Based on methylation/GC-MS, nuclear magnetic resonance (NMR) spectroscopy, the structure of FM-NFG was proposed as arabinoxylans. Flaxseed mucilage arabinoxylans contained β-1,4-linked xylose backbones, which were mainly substituted at O-2 and/or O-3 positions by 1-3 sugar residues. The possible branches included → 5)-α-l-Araf-(1 → (17.3 mol%), → 3)-α-l-Araf-(1 → (4.9 mol%), and → 4)-α-d-Glcp-(1 → (3.5 mol%), which were ended with three terminal sugar units: T-β-d-Xylp-(1 → (15.5 mol%), T-α-d-Glap-(1 → (4.5 mol%), and T-α-l-Araf-(1 → (2.6 mol%). The weight average molecular weight (Mw) of flaxseed mucilage arabinoxylans was calculated to be 1747 kDa by static light scattering (SLS), and it exhibited random coil conformation. The proposed structure and conformational models confirmed that different backbone sugar units especially substitution positions directly contributed to the conformational diversity and rigidity of polysaccharide molecules.
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Affiliation(s)
- Huihuang H Ding
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph N1G 2W1, Canada; Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph N1G 5C9, Canada.
| | - Keying Qian
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph N1G 2W1, Canada.
| | - H Douglas Goff
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph N1G 2W1, Canada.
| | - Qi Wang
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph N1G 5C9, Canada.
| | - Steve W Cui
- Department of Food Science, University of Guelph, 50 Stone Road E., Guelph N1G 2W1, Canada; Guelph Research and Development Centre, Agriculture and Agri-Food Canada, 93 Stone Road W., Guelph N1G 5C9, Canada.
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Ndou SP, Kiarie E, Thandapilly SJ, Walsh MC, Ames N, Nyachoti CM. Flaxseed meal and oat hulls supplementation modulates growth performance, blood lipids, intestinal fermentation, bile acids, and neutral sterols in growing pigs fed corn-soybean meal-based diets. J Anim Sci 2017; 95:3068-3078. [PMID: 28727078 DOI: 10.2527/jas.2016.1328] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The present study was conducted to determine the effect of flaxseed meal and oat hulls supplementation on growth performance, apparent total tract digestibility (ATTD) of fat, serum lipids, and concentrations of VFA, bile acids (BA), and neutral sterols (NS) in digesta and feces in growing pigs. Forty-eight Genesus [(Duroc boar × Yorkshire-Landrace sows] barrows (25.0 ± 0.32 kg initial BW) were housed in pairs. Pigs were assigned to 1 of the 3 corn-soybean meal-based diets-a basal corn-soybean meal-containing diet (control), a flaxseed meal-containing diet (FM), or an oat hulls-containing diet (OH)-in a completely randomized design. All diets were formulated to be isoenergetic and to contain similar standardized ileal digestible AA contents and meet other nutrient requirements for growing pigs. The experiment lasted for 28 d. Average daily feed intake; ADG; G:F; ATTD of fat, serum lipids, and digesta; and fecal VFA, BA, and NS concentrations were determined. Pigs fed the control or OH had greater final BW ( < 0.001), ADFI ( = 0.005), and ADG ( < 0.001) than FM-fed pigs. The ATTD of fat in the FM was lowest at 70.1% followed by 79.2% in OH and was greatest at 92.4% in the control ( = 0.020). Total serum cholesterol content was 2.25 and 1.99 mmol/L and lower ( < 0.001) in pigs fed FM and OH, respectively, than the 2.36 mmol/L in pigs fed the control. Pigs fed the FM and OH had greater ileal and cecal total VFA ( < 0.001), ileal deoxycholic acid ( < 0.01), and cecal ( < 0.001) and fecal cholesterol ( = 0.002) concentrations than those fed the control. Pigs fed the FM excreted more fecal lithocholic acid ( = 0.002) and ursodeoxycholic acid ( = 0.001) compared with those that consumed the control and OH. The concentrations of coprostanol in cecal digesta ( < 0.001) and feces ( = 0.011) were higher in pigs fed the FM and OH than in pigs fed the control. In conclusion, feeding flaxseed meal and oat hulls induced intestinal fermentation; however, the former depressed growth performance whereas the latter did not have any effect. Addition of flaxseed meal and oat hulls in growing pig diets reduced fat digestibility and serum cholesterol and stimulated malabsorption of primary BA and excretion of secondary BA and NS.
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Xyloglucans from flaxseed kernel cell wall: Structural and conformational characterisation. Carbohydr Polym 2016; 151:538-545. [DOI: 10.1016/j.carbpol.2016.05.094] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/25/2016] [Accepted: 05/26/2016] [Indexed: 11/30/2022]
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