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Ramu Ganesan A, Hoellrigl P, Mayr H, Martini Loesch D, Tocci N, Venir E, Conterno L. The Rheology and Textural Properties of Bakery Products Upcycling Brewers' Spent Grain. Foods 2023; 12:3524. [PMID: 37835177 PMCID: PMC10572393 DOI: 10.3390/foods12193524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 09/14/2023] [Accepted: 09/15/2023] [Indexed: 10/15/2023] Open
Abstract
This study aimed to evaluate the rheological properties of doughs with 50% brewers' spent grain (BSG) derived from a rye-based (RBSG) and barley-based (BBSG) beer added, and the textural profile of the related baked products. Simple model systems using BSG flour mixed with water were studied. Two bakery products, focaccia and cookies, were made as food systems using BSG in a 1:1 ratio with wheat flour (WF). Their rheological properties and texture after baking were characterized. BSG-added dough exhibited viscoelastic properties with a solid gel-like behavior. The addition of BSG increased G' > G″ and decreased the dough flexibility. BSG addition in baked RBSG focaccia increased the hardness, gumminess, and chewiness by 10%, 9%, and 12%, respectively. BBSG cookies had a 20% increase in fracturability. A positive correlation was found between the rheological metrics of the dough and the textural parameters of BBSG-added cookies. PCA analysis revealed that complex viscosity, G', G″, and cohesiveness separated BBSG focaccia from RBSG focaccia and the control. Therefore, the rheological properties of BSG dough will have industrial relevance for 3D-printed customized food products with fiber. Adding RBSG and BBSG to selected foods will increase the up-cycling potential by combining techno-functional properties.
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Affiliation(s)
- Abirami Ramu Ganesan
- Division of Food Production and Society, Biomarine Resource Valorisation, Norwegian Institute of Bioeconomy Research, Torggården, Kudalsveien 6, NO-8027 Bodø, Norway;
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
| | - Philipp Hoellrigl
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
| | - Hannah Mayr
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
| | - Demian Martini Loesch
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
| | - Noemi Tocci
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
| | - Elena Venir
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
| | - Lorenza Conterno
- Food Technology Area, Institute for Mountain Agriculture and Food Technology Laimburg Research Centre, Laimburg 6, 39051 Pfatten/Vadena, BZ, Italy; (P.H.); (H.M.); (D.M.L.); (N.T.); (E.V.)
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Ganesan AR, Mohan K, Karthick Rajan D, Pillay AA, Palanisami T, Sathishkumar P, Conterno L. Distribution, toxicity, interactive effects, and detection of ochratoxin and deoxynivalenol in food: A review. Food Chem 2021; 378:131978. [PMID: 35033712 DOI: 10.1016/j.foodchem.2021.131978] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 11/28/2021] [Accepted: 12/28/2021] [Indexed: 12/19/2022]
Abstract
Mycotoxins are secondary metabolites of fungi that cause severe damage to agricultural products and food in the food supply chain. These detrimental pollutants have been directly linked with poor socioeconomic patterns and human health issues. Among the natural micropollutants, ochratoxin A (OTA) and deoxynivalenol (DON) are widely distributed in food materials. The primary occurrence of these mycotoxins is reported in almost all cereal grains and fresh agro-products. Both mycotoxins have shown harmful effects, such as nephrotoxic, hepatotoxic, and genotoxic effects, in humans due to their complex structural formation during the degradation/acetylation reaction. In addition, improper preharvest, harvest, and postharvest handling tend to lead to the formation of OTA and DON in various food commodities, which allows different harmful fungicides in practice. Therefore, this review provides more insight into the distribution and toxicity of OTA/DON in the food matrix and human health. Furthermore, the interactive effects of OTA/DON with co-contaminated organic and inorganic compounds are discussed. Finally, international regulation and mitigation strategies for detoxication are critically evaluated to meet food safety and good agriculture practices.
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Affiliation(s)
- Abirami Ramu Ganesan
- Group of Fermentation and Distillation, Laimburg Research Centre, Ora (BZ), Auer 39040, Italy.
| | - Kannan Mohan
- PG and Research Department of Zoology, Sri Vasavi College, Erode, Tamil Nadu 638 316, India
| | - Durairaj Karthick Rajan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, Tamil Nadu 608502, India
| | - Arti A Pillay
- School of Applied Sciences, College of Engineering Science and Technology, Fiji National University, Nabua Campus- 7222, Fiji Islands
| | - Thavamani Palanisami
- Global Innovative Centre for Advanced Nanomaterials (GICAN), University of Newcastle, Callaghan, NSW 2308, Australia
| | - Palanivel Sathishkumar
- Department of Prosthodontics, Saveetha Dental College and Hospital, SIMATS, Saveetha University, Chennai 600 077, Tamil Nadu, India
| | - Lorenza Conterno
- Group of Fermentation and Distillation, Laimburg Research Centre, Ora (BZ), Auer 39040, Italy.
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Diotallevi C, Fontana M, Latimer C, Ternan NG, Pourshahidi LK, Lawther R, O'Connor G, Conterno L, Gasperotti M, Angeli A, Lotti C, Bianchi M, Vrhovsek U, Fava F, Gobbetti M, Gill CIR, Tuohy KM. Ex Vivo Fecal Fermentation of Human Ileal Fluid Collected After Wild Strawberry Consumption Modulates Human Microbiome Community Structure and Metabolic Output and Protects Against DNA Damage in Colonic Epithelial Cells. Mol Nutr Food Res 2021; 66:e2100405. [PMID: 34821456 DOI: 10.1002/mnfr.202100405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 09/09/2021] [Indexed: 11/06/2022]
Abstract
SCOPE Wild strawberries (Fragaria vesca) are richer in (poly)phenols than common commercial strawberry varieties, e.g., Fragaria × ananassa. (Poly)phenols and their microbiota-derived metabolites are hypothesized to exert bioactivity within the human gut mucosa. To address this, the effects of wild strawberries are investigated with respect to their bioactivity and microbiota-modulating capacity using both in vitro and ex vivo approaches. METHODS AND RESULTS Ileal fluids collected pre- (0h) and post-consumption (8h) of 225 g wild strawberries by ileostomates (n = 5) and also in vitro digested strawberry varieties (Fragaria vesca and Fragaria × ananassa Duchesne) supernatants are collected. Subsequent fermentation of these supernatants using an in vitro batch culture proximal colon model reveals significant treatment-specific changes in microbiome community structure in terms of alpha but not beta diversity at 24 h. Nutri-kinetic analysis reveals a significant increase in the concentration of gut microbiota catabolites, including 3-(4hydroxyphenyl)propionic acid, 3-(3-hydroxyphenyl)propanoic acid, and benzoic acid. Furthermore, post-berry ileal fermentates (24 h) significantly (p < 0.01) decrease DNA damage (% Tail DNA, COMET assay) in both HT29 cells (∼45%) and CCD 841 CoN cells (∼25%) compared to untreated controls. CONCLUSIONS Post berry consumption fermentates exhibit increased overall levels of (poly)phenolic metabolites, which retains their bioactivity, reducing DNA damage in colonocytes.
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Affiliation(s)
- Camilla Diotallevi
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy.,Freie Universität Bozen-Libera Università di Bolzano, Faculty of Science and Technology, Bolzano (BZ), Italy
| | - Massimiliano Fontana
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy.,Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, UK
| | - Cheryl Latimer
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, UK
| | - Nigel G Ternan
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, UK
| | - L Kirsty Pourshahidi
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, UK
| | - Roger Lawther
- Altnagelvin Area Hospital, Western Health and Social Care Trust, Londonderry, UK
| | - Gloria O'Connor
- Altnagelvin Area Hospital, Western Health and Social Care Trust, Londonderry, UK
| | - Lorenza Conterno
- Fermentation and Distillation Group, Laimburg Research Centre, Vadena (BZ), Italy
| | - Mattia Gasperotti
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
| | - Andrea Angeli
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
| | - Cesare Lotti
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
| | - Martina Bianchi
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
| | - Urska Vrhovsek
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
| | - Francesca Fava
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
| | - Marco Gobbetti
- Freie Universität Bozen-Libera Università di Bolzano, Faculty of Science and Technology, Bolzano (BZ), Italy
| | - Chris I R Gill
- Nutrition Innovation Centre for Food and Health (NICHE), Ulster University, Coleraine, Northern Ireland, UK
| | - Kieran M Tuohy
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, San Michele all'Adige (TN), Italy
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Campa M, Piazza S, Righetti L, Oh CS, Conterno L, Borejsza-Wysocka E, Nagamangala KC, Beer SV, Aldwinckle HS, Malnoy M. HIPM Is a Susceptibility Gene of Malus spp.: Reduced Expression Reduces Susceptibility to Erwinia amylovora. Mol Plant Microbe Interact 2019; 32:167-175. [PMID: 29996678 DOI: 10.1094/mpmi-05-18-0120-r] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Fire blight, a devastating disease caused by the bacterium Erwinia amylovora, is a major threat to apple crop production. To improve our understanding of the fire blight disease and to identify potential strategies to control the pathogen, we studied the apple protein HIPM (for HrpN-interacting protein from Malus spp.), which has previously been identified as interacting with the E. amylovora effector protein HrpN. Transgenic apple plants were generated with reduced HIPM expression, using an RNA interference construct, and were subsequently analyzed for susceptibility to E. amylovora infection. Lines exhibiting a greater than 50% silencing of HIPM expression showed a significant decrease in susceptibility to E. amylovora infection. Indeed, a correlation between HIPM expression and E. amylovora infection was identified, demonstrating the crucial role of HIPM during fire blight disease progression. Furthermore, an apple oxygen-evolving enhancer-like protein (MdOEE) was identified via a yeast two-hybrid screen to interact with HIPM. This result was confirmed with bimolecular fluorescence complementation assays and leads to new hypotheses concerning the response mechanism of the plant to E. amylovora as well as the mechanism of infection of the bacterium. These results suggest that MdOEE and, particularly, HIPM are promising targets for further investigations toward the genetic improvement of apple.
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Affiliation(s)
- Manuela Campa
- 1 Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via Mach 1, 38010 San Michele all'Adige (TN), Italy
| | - Stefano Piazza
- 1 Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via Mach 1, 38010 San Michele all'Adige (TN), Italy
| | - Laura Righetti
- 1 Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via Mach 1, 38010 San Michele all'Adige (TN), Italy
| | - Chang-Sik Oh
- 2 Department of Horticultural Biotechnology, Kyung Hee University, Yongin 17104, South Korea
| | - Lorenza Conterno
- 1 Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via Mach 1, 38010 San Michele all'Adige (TN), Italy
| | - Ewa Borejsza-Wysocka
- 3 Section of Plant Pathology and Plant-Microbe Biology, School of Integrative Plant Sciences, Cornell University, Geneva, NY 14456, U.S.A.; and
| | | | | | - Herbert Sanders Aldwinckle
- 3 Section of Plant Pathology and Plant-Microbe Biology, School of Integrative Plant Sciences, Cornell University, Geneva, NY 14456, U.S.A.; and
| | - Mickael Malnoy
- 1 Research and Innovation Centre, Fondazione Edmund Mach (FEM), Via Mach 1, 38010 San Michele all'Adige (TN), Italy
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D'hoe K, Conterno L, Fava F, Falony G, Vieira-Silva S, Vermeiren J, Tuohy K, Raes J. Prebiotic Wheat Bran Fractions Induce Specific Microbiota Changes. Front Microbiol 2018; 9:31. [PMID: 29416529 PMCID: PMC5787670 DOI: 10.3389/fmicb.2018.00031] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2017] [Accepted: 01/09/2018] [Indexed: 01/08/2023] Open
Abstract
Wheat bran fibers are considered beneficial to human health through their impact on gut microbiota composition and activity. Here, we assessed the prebiotic potential of selected bran fractions by performing a series of fecal slurry anaerobic fermentation experiments using aleurone as well as total, ultrafine, and soluble wheat bran (swb) as carbon sources. By combining amplicon-based community profiling with a fluorescent in situ hybridization (FISH) approach, we found that incubation conditions favor the growth of Proteobacteria such as Escherichia and Bilophila. These effects were countered in all but one [total wheat bran (twb)] fermentation experiments. Growth of Bifidobacterium species was stimulated after fermentation using ultrafine, soluble, and twb, in the latter two as part of a general increase in bacterial load. Both ultrafine and swb fermentation resulted in a trade-off between Bifidobacterium and Bilophila, as previously observed in human dietary supplementation studies looking at the effect of inulin-type fructans on the human gut microbiota. Aleurone selectively stimulated growth of Dorea and butyrate-producing Roseburia. All fermentation experiments induced enhanced gas production; increased butyrate concentrations were only observed following soluble bran incubation. Our results open perspectives for the development of aleurone as a complementary prebiotic selectively targeting colon butyrate producers.
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Affiliation(s)
- Kevin D'hoe
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Jeroen Raes Lab, VIB KU Leuven Center for Microbiology, Leuven, Belgium.,Research Group of Microbiology, Department of Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
| | - Lorenza Conterno
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, Trento, Italy.,Fermentation and Distillation, Laimburg Research Centre, Bolzano, Italy
| | - Francesca Fava
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, Trento, Italy
| | - Gwen Falony
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Jeroen Raes Lab, VIB KU Leuven Center for Microbiology, Leuven, Belgium
| | - Sara Vieira-Silva
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Jeroen Raes Lab, VIB KU Leuven Center for Microbiology, Leuven, Belgium
| | | | - Kieran Tuohy
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, Trento, Italy
| | - Jeroen Raes
- Laboratory of Molecular Bacteriology, Department of Microbiology and Immunology, Rega Institute, KU Leuven, Leuven, Belgium.,Jeroen Raes Lab, VIB KU Leuven Center for Microbiology, Leuven, Belgium.,Research Group of Microbiology, Department of Bioengineering Sciences, Vrije Universiteit Brussel, Brussels, Belgium
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Conterno L, Martinelli F, Tamburini M, Fava F, Mancini A, Sordo M, Pindo M, Martens S, Masuero D, Vrhovsek U, Dal Lago C, Ferrario G, Morandini M, Tuohy K. Measuring the impact of olive pomace enriched biscuits on the gut microbiota and its metabolic activity in mildly hypercholesterolaemic subjects. Eur J Nutr 2017; 58:63-81. [PMID: 29124388 PMCID: PMC6424929 DOI: 10.1007/s00394-017-1572-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 10/24/2017] [Indexed: 12/21/2022]
Abstract
Purpose Olive pomace is a major waste product of olive oil production but remains rich in polyphenols and fibres. We measured the potential of an olive pomace-enriched biscuit formulation delivering 17.1 ± 4.01 mg/100 g of hydroxytyrosol and its derivatives, to modulate the composition and metabolic activity of the human gut microbiota. Methods In a double-blind, controlled parallel dietary intervention 62 otherwise healthy hypercholesterolemic (total plasma cholesterol 180–240 mg/dl) subjects were randomly assigned to eat 90 g of olive pomace-enriched biscuit (olive-enriched product, OEP) or an isoenergetic control (CTRL) for 8 weeks. Fasted blood samples, 24-h urine and faecal samples were collected before and after dietary intervention for measurement of microbiota, metabolites and clinical parameters. Results Consumption of OEP biscuits did not impact on the diversity of the faecal microbiota and there was no statistically significant effect on CVD markers. A trend towards reduced oxidized LDL cholesterol following OEP ingestion was observed. At the genus level lactobacilli and Ruminococcus were reduced in OEP compared to CTRL biscuits. A trend towards increased bifidobacteria abundance was observed after OEP ingestion in 16S rRNA profiles, by fluorescent in situ hybridization and by qPCR. Targeted LC–MS revealed significant increases phenolic acid concentrations in 24-h urine following OEP ingestion and 3,4-dihydroxyphenylacetic acid (DOPAC) and homovanillic acid, derivatives of hydroxytyrosol, were elevated in blood. A sex effect was apparent in urine small phenolic acid concentrations, and this sex effect was mirrored by statistically significant differences in relative abundances of faecal bacteria between men and women. Conclusion Ingestion of OEP biscuits led to a significant increase in the metabolic output of the gut microbiota with an apparent sex effect possibly linked to differences in microbiota makeup. Increased levels of homovanillic acid and DOPAC, thought to be involved in reducing oxidative LDL cholesterol, were observed upon OEP ingestion. However, OEP did not induce statistically significant changes in either ox-LDL or urinary isoprostane in this study.
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Affiliation(s)
- Lorenza Conterno
- OlioCRU s.r.l. Research and Development Group, Via Aldo Moro 1, 38062, Arco, TN, Italy
| | - Francesca Martinelli
- OlioCRU s.r.l. Research and Development Group, Via Aldo Moro 1, 38062, Arco, TN, Italy
| | - Matteo Tamburini
- OlioCRU s.r.l. Research and Development Group, Via Aldo Moro 1, 38062, Arco, TN, Italy
| | - Francesca Fava
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Andrea Mancini
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Maddalena Sordo
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Massimo Pindo
- Genomics and Advanced Biology Unit, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Stefan Martens
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Domenico Masuero
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Urska Vrhovsek
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy
| | - Claudia Dal Lago
- Casa di Cura Eremo di Arco s.r.l., Via XXI Aprile 1, 38062, Arco, TN, Italy
| | - Gabriele Ferrario
- Casa di Cura Eremo di Arco s.r.l., Via XXI Aprile 1, 38062, Arco, TN, Italy
| | - Mario Morandini
- OlioCRU s.r.l. Research and Development Group, Via Aldo Moro 1, 38062, Arco, TN, Italy
| | - Kieran Tuohy
- Department of Food Quality and Nutrition, Research and Innovation Centre-Fondazione Edmund Mach, San Michele all'Adige, Italy.
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Collini M, Albonico F, Rosà R, Tagliapietra V, Arnoldi D, Conterno L, Rossi C, Mortarino M, Rizzoli A, Hauffe HC. Identification of Ixodes ricinus blood meals using an automated protocol with high resolution melting analysis (HRMA) reveals the importance of domestic dogs as larval tick hosts in Italian alpine forests. Parasit Vectors 2016; 9:638. [PMID: 27955678 PMCID: PMC5154095 DOI: 10.1186/s13071-016-1901-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 11/21/2016] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND In Europe, Ixodes ricinus L. is the main vector of a variety of zoonotic pathogens, acquired through blood meals taken once per stage from a vertebrate host. Defining the main tick hosts in a given area is important for planning public health interventions; however, until recently, no robust molecular methods existed for blood meal identification from questing ticks. Here we improved the time- and cost-effectiveness of an HRMA protocol for blood meal analysis and used it to identify blood meal sources of sheep tick larvae from Italian alpine forests. METHODS Nine hundred questing nymphs were collected using blanket-dragging in 18 extensive forests and 12 forest patches close to rural villages in the Province of Trento. Total DNA was either extracted manually, with the QIAamp DNA Investigator kit, or automatically using the KingFisher™ Flex Magnetic Particle Processors (KingFisher Cell and Tissue DNA Kit). Host DNA was amplified with six independent host group real-time PCR reactions and identified by means of HRMA. Statistical analyses were performed in R to assess the variables important for achieving successful identification and to compare host use in the two types of forest. RESULTS Automating DNA extraction improved time- and cost-effectiveness of the HRMA protocol, but identification success fell to 22.4% (KingFisher™) from 55.1% (QIAamp), with larval hosts identified in 215 of 848 questing nymphs; 23 mixed blood meals were noted. However, the list of hosts targeted by our primer sets was extended, improving the potential of the method. Host identification to species or genus level was possible for 137 and 102 blood meals, respectively. The most common hosts were Rodentia (28.9%) and, unexpectedly, Carnivora (28.4%), with domestic dogs accounting for 21.3% of all larval blood meals. Overall, Cetartiodactyla species fed 17.2% of larvae. Passeriformes (14.6%) fed a significantly higher proportion of larvae in forest patches (22.3%) than in extensive forest (9.6%), while Soricomorpha (10.9%) were more important hosts in extensive forest (15.2%) than in forest patches (4.3%). CONCLUSIONS The HRMA protocol for blood meal analysis is a valuable tool in the study of feeding ecology of sheep ticks, especially with the cost- and time- reductions introduced here. To our knowledge, we show for the first time that domestic dogs are important larval hosts in the Alps, which may have possible implications for tick-borne disease cycles in urbanized areas.
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Affiliation(s)
- Margherita Collini
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
- Department of Veterinary Medicine, Università degli Studi di Milano, Milan, Italy
| | - Francesca Albonico
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
- Department of Veterinary Medicine, Università degli Studi di Milano, Milan, Italy
| | - Roberto Rosà
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
| | - Valentina Tagliapietra
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
| | - Daniele Arnoldi
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
| | - Lorenza Conterno
- Department of Food Quality and Nutrition, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
| | - Chiara Rossi
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
| | - Michele Mortarino
- Department of Veterinary Medicine, Università degli Studi di Milano, Milan, Italy
| | - Annapaola Rizzoli
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
| | - Heidi Christine Hauffe
- Department of Biodiversity and Molecular Ecology, Research and Innovation Centre, Fondazione Edmund Mach, San Michele all’Adige, Trento, Italy
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Guzzon R, Poznanski E, Conterno L, Vagnoli P, Krieger-Weber S, Cavazza A. Selection of a New Highly Resistant Strain for Malolactic Fermentation under Difficult Conditions. S AFR J ENOL VITIC 2016. [DOI: 10.21548/30-2-1433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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Beckner Whitener ME, Carlin S, Jacobson D, Weighill D, Divol B, Conterno L, Du Toit M, Vrhovsek U. Early fermentation volatile metabolite profile of non-Saccharomyces yeasts in red and white grape must: A targeted approach. Lebensm Wiss Technol 2015. [DOI: 10.1016/j.lwt.2015.05.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Conterno L, Aprea E, Franceschi P, Viola R, Vrhovsek U. Overview of Dekkera bruxellensis behaviour in an ethanol-rich environment using untargeted and targeted metabolomic approaches. Food Res Int 2013. [DOI: 10.1016/j.foodres.2013.01.049] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Tuohy KM, Conterno L, Gasperotti M, Viola R. Up-regulating the human intestinal microbiome using whole plant foods, polyphenols, and/or fiber. J Agric Food Chem 2012; 60:8776-82. [PMID: 22607578 DOI: 10.1021/jf2053959] [Citation(s) in RCA: 188] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Whole plant foods, including fruit, vegetables, and whole grain cereals, protect against chronic human diseases such as heart disease and cancer, with fiber and polyphenols thought to contribute significantly. These bioactive food components interact with the gut microbiota, with gut bacteria modifying polyphenol bioavailability and activity, and with fiber, constituting the main energy source for colonic fermentation. This paper discusses the consequences of increasing the consumption of whole plant foods on the gut microbiota and subsequent implications for human health. In humans, whole grain cereals can modify fecal bacterial profiles, increasing relative numbers of bifidobacteria and lactobacilli. Polyphenol-rich chocolate and certain fruits have also been shown to increase fecal bifidobacteria. The recent FLAVURS study provides novel information on the impact of high fruit and vegetable diets on the gut microbiota. Increasing whole plant food consumption appears to up-regulate beneficial commensal bacteria and may contribute toward the health effects of these foods.
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Affiliation(s)
- Kieran M Tuohy
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, IASMA Research and Innovation Centre, Via E. Mach 1, 38010 S. Michele (TN), Italy.
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Conterno L, Fava F, Viola R, Tuohy KM. Obesity and the gut microbiota: does up-regulating colonic fermentation protect against obesity and metabolic disease? Genes Nutr 2011; 6:241-60. [PMID: 21559992 PMCID: PMC3145060 DOI: 10.1007/s12263-011-0230-1] [Citation(s) in RCA: 163] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 04/20/2011] [Indexed: 12/18/2022]
Abstract
Obesity is now considered a major public health concern globally as it predisposes to a number of chronic human diseases. Most developed countries have experienced a dramatic and significant rise in obesity since the 1980s, with obesity apparently accompanying, hand in hand, the adoption of "Western"-style diets and low-energy expenditure lifestyles around the world. Recent studies report an aberrant gut microbiota in obese subjects and that gut microbial metabolic activities, especially carbohydrate fermentation and bile acid metabolism, can impact on a number of mammalian physiological functions linked to obesity. The aim of this review is to present the evidence for a characteristic "obese-type" gut microbiota and to discuss studies linking microbial metabolic activities with mammalian regulation of lipid and glucose metabolism, thermogenesis, satiety, and chronic systemic inflammation. We focus in particular on short-chain fatty acids (SCFA) produced upon fiber fermentation in the colon. Although SCFA are reported to be elevated in the feces of obese individuals, they are also, in contradiction, identified as key metabolic regulators of the physiological checks and controls mammals rely upon to regulate energy metabolism. Most studies suggest that the gut microbiota differs in composition between lean and obese individuals and that diet, especially the high-fat low-fiber Western-style diet, dramatically impacts on the gut microbiota. There is currently no consensus as to whether the gut microbiota plays a causative role in obesity or is modulated in response to the obese state itself or the diet in obesity. Further studies, especially on the regulatory role of SCFA in human energy homeostasis, are needed to clarify the physiological consequences of an "obese-style" microbiota and any putative dietary modulation of associated disease risk.
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Affiliation(s)
- Lorenza Conterno
- Nutrition and Nutrigenomics Group, Research and Innovation Centre, FEM-IASMA, 38010, S. Michele a.A, Trento, Italy,
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Gadoury DM, Seem RC, Wilcox WF, Henick-Kling T, Conterno L, Day A, Ficke A. Effects of Diffuse Colonization of Grape Berries by Uncinula necator on Bunch Rots, Berry Microflora, and Juice and Wine Quality. Phytopathology 2007; 97:1356-1365. [PMID: 18943695 DOI: 10.1094/phyto-97-10-1356] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
ABSTRACT Production of grape (principally cultivars of Vitis vinifera) for high-quality wines requires a high level of suppression of powdery mildew (Uncinula necator syn. Erysiphe necator). Severe infection of either fruit or foliage has well-documented and deleterious effects upon crop and wine quality. We found that berries nearly immune to infection by U. necator due to the development of ontogenic resistance may still support diffuse and inconspicuous mildew colonies when inoculated approximately 3 weeks post-bloom. Fruit with diffuse mildew colonies appear to be healthy and free of powdery mildew in late-season vineyard assessments with the naked eye. Nonetheless, presence of these colonies on berries was associated with (i) elevated populations of spoilage microorganisms; (ii) increased evolution of volatile ethyl acetate, acetic acid, and ethanol; (iii) increased infestation by insects known to be attracted to the aforementioned volatiles; (iv) increased rotting by Botrytis cinerea; and (v) increased frequency of perceived defects in wines prepared from fruit supporting diffuse powdery mildew colonies. Prevention of diffuse infection requires extending fungicidal protection until fruit are fully resistant to infection. Despite a perceived lack of improvement in disease control due to the insidious nature of diffuse powdery mildew, potential deleterious effects upon crop and wine quality thereby would be avoided.
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Delfini C, Conterno L, Carpi G, Rovere P, Tabusso A, Cocito C, Amati A. Microbiological stabilisation of grape musts and wines by high hydrostatic pressures. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/09571269508718031] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Conterno L, Delfini C. Peptidase activity and the ability of wine yeasts to utilise grape must proteins as sole nitrogen source. ACTA ACUST UNITED AC 2007. [DOI: 10.1080/09571269408717990] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Abstract
BACKGROUND As a consequence of their condition, people with sickle cell disease are at high risk of developing an acute infection of the pulmonary parenchyma called community-acquired pneumonia. Many different bacteria can cause this infection and antibiotic treatment is generally needed to resolve it. There is no standardized approach to antibiotic therapy and treatment is likely to vary from country to country. Thus, there is a need to identify the efficacy and safety of different antibiotic treatment approaches for people with sickle cell disease suffering from community-acquired pneumonia. OBJECTIVES To determine the efficacy and safety of the antibiotic treatment approaches (monotherapy or combined) for people with sickle cell disease suffering from community-acquired pneumonia. SEARCH STRATEGY We searched The Group's Haemoglobinopathies Trials Register (December 2005), which comprises references identified from comprehensive electronic database searches and handsearching of relevant journals and abstract books of conference proceedings. We also searched The Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (Issue 4, 2005), MEDLINE (1966 to December 5th, 2005), EMBASE (1974 to December 7th, 2005), and LILACS (1982 to December 2005). Date of most recent search: December 2005 SELECTION CRITERIA We searched for published or unpublished randomized controlled trials. DATA COLLECTION AND ANALYSIS We intended to summarise data by standard Cochrane Collaboration methodologies, but no eligible randomized controlled trials were identified. MAIN RESULTS We were unable to find any randomized controlled trials on antibiotic treatment approaches for community-acquired pneumonia in people with sickle cell disease. AUTHORS' CONCLUSIONS We were unable to identify randomized controlled trials on efficacy and safety of the antibiotic treatment approaches for people with sickle cell disease suffering from community-acquired pneumonia. Randomized controlled trials are needed to establish the optimum antibiotic treatment for this condition.
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Affiliation(s)
- A J Martí-Carvajal
- Universidad de Carabobo, Departamento de Salud Pública, Facultad de Ciencias de la Salud, Valencia, Edo. Carabobo, Venezuela 2001.
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Martí-Carvajal AJ, Conterno L. Antibiotics for treating community acquired pneumonia in people with sickle cell disease. Hippokratia 2006. [DOI: 10.1002/14651858.cd005598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Zeppa G, Conterno L, Gerbi V. Determination of organic acids, sugars, diacetyl, and acetoin in cheese by high-performance liquid chromatography. J Agric Food Chem 2001; 49:2722-2726. [PMID: 11409957 DOI: 10.1021/jf0009403] [Citation(s) in RCA: 172] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Sugars (lactose, glucose, and galactose), nonvolatile acids (citric, orotic, piruvic, lactic, ossalic, and hippuric), some free fatty acids (formic, acetic, propionic, butyric, isobutyric, valeric, and isovaleric), diacetyl, and acetoin were separated on an Aminex HPX-87H column using a simple isocratic HPLC method and identified by retention times with ultraviolet and refractive index detectors. With the proposed technique it is possible to evaluate the development of microbial fermentations and, at the same time, degree of cheese ripening.
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Affiliation(s)
- G Zeppa
- Dipartimento Valorizzazione e Protezione Risorse Agroforestali - Settore Microbiologia e Industrie agrarie, Università di Torino, Via L. da Vinci 44, 10095, Grugliasco, Torino, Italy.
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