Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health

Polyphenols of Laurel and Myrtle exhibit structural diversity, which affects bioavailability, metabolism, and bioactivity. The gut microbiota plays a key role in modulating the production, bioavailability and, thus the biological activities of phenolic metabolites, particularly after the intake of f...

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Main Authors: Marija Berendika, Sandra Domjanić Drozdek, Dyana Odeh, Nada Oršolić, Petar Dragičević, Marijana Sokolović, Ivona Elez Garofulić, Domagoj Đikić, Irena Landeka Jurčević
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Molecules
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Online Access:https://www.mdpi.com/1420-3049/27/2/581
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author Marija Berendika
Sandra Domjanić Drozdek
Dyana Odeh
Nada Oršolić
Petar Dragičević
Marijana Sokolović
Ivona Elez Garofulić
Domagoj Đikić
Irena Landeka Jurčević
author_facet Marija Berendika
Sandra Domjanić Drozdek
Dyana Odeh
Nada Oršolić
Petar Dragičević
Marijana Sokolović
Ivona Elez Garofulić
Domagoj Đikić
Irena Landeka Jurčević
author_sort Marija Berendika
collection DOAJ
description Polyphenols of Laurel and Myrtle exhibit structural diversity, which affects bioavailability, metabolism, and bioactivity. The gut microbiota plays a key role in modulating the production, bioavailability and, thus the biological activities of phenolic metabolites, particularly after the intake of food containing high-molecular-weight polyphenols. The aim of this study was to investigate whether the polyphenolic components of Laurel and Myrtle aqueous extract have beneficial effects on rat health. The growth of lactic acid bacteria (LAB), β-glucuronidase, β-glucosidase, β-galactosidase activity, pH value, body weight change and food efficacy ratio after intragastric treatment of rats with Laurel and Myrtle extract at doses of 50 and 100 mg/kg for two weeks were investigated. The endogenous populations of colonic probiotic bacteria (Lactobacilli and Bifidobacteria) were counted on selective media. According to the obtained data, Laurel extract in the applied dose of 50 and 100 and Myrtle extract (100 mg/kg) positively affects the rats health by increasing the number of colonies of Lactobacilli and Bifidobacteria compared to the control group, causes changes in glycolytic enzymatic activity and minor change in antioxidative tissue activity. In addition, high doses of Laurel increase food efficiency ratio, while Myrtle has the same effect at a lower dose.
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spelling doaj.art-1becd661e51b47f681f18bb3fce9a63b2023-11-23T14:54:04ZengMDPI AGMolecules1420-30492022-01-0127258110.3390/molecules27020581Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat HealthMarija Berendika0Sandra Domjanić Drozdek1Dyana Odeh2Nada Oršolić3Petar Dragičević4Marijana Sokolović5Ivona Elez Garofulić6Domagoj Đikić7Irena Landeka Jurčević8Department of Food Quality Control, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, CroatiaDepartment of Food Quality Control, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, CroatiaDepartment of Animal Physiology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, CroatiaDepartment of Animal Physiology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, CroatiaSchool of Medicine, University of Zagreb, Šalata 3, 10000 Zagreb, CroatiaCroatian Veterinary Institute Zagreb, Savska Cesta 143, 10000 Zagreb, CroatiaDepartment of Food Quality Control, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, CroatiaDepartment of Animal Physiology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, CroatiaDepartment of Food Quality Control, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, 10000 Zagreb, CroatiaPolyphenols of Laurel and Myrtle exhibit structural diversity, which affects bioavailability, metabolism, and bioactivity. The gut microbiota plays a key role in modulating the production, bioavailability and, thus the biological activities of phenolic metabolites, particularly after the intake of food containing high-molecular-weight polyphenols. The aim of this study was to investigate whether the polyphenolic components of Laurel and Myrtle aqueous extract have beneficial effects on rat health. The growth of lactic acid bacteria (LAB), β-glucuronidase, β-glucosidase, β-galactosidase activity, pH value, body weight change and food efficacy ratio after intragastric treatment of rats with Laurel and Myrtle extract at doses of 50 and 100 mg/kg for two weeks were investigated. The endogenous populations of colonic probiotic bacteria (Lactobacilli and Bifidobacteria) were counted on selective media. According to the obtained data, Laurel extract in the applied dose of 50 and 100 and Myrtle extract (100 mg/kg) positively affects the rats health by increasing the number of colonies of Lactobacilli and Bifidobacteria compared to the control group, causes changes in glycolytic enzymatic activity and minor change in antioxidative tissue activity. In addition, high doses of Laurel increase food efficiency ratio, while Myrtle has the same effect at a lower dose.https://www.mdpi.com/1420-3049/27/2/581Laurel extractMyrtle extractgut microbial enzyme activityantioxidative activity in tissueprobiotic bacteria
spellingShingle Marija Berendika
Sandra Domjanić Drozdek
Dyana Odeh
Nada Oršolić
Petar Dragičević
Marijana Sokolović
Ivona Elez Garofulić
Domagoj Đikić
Irena Landeka Jurčević
Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health
Molecules
Laurel extract
Myrtle extract
gut microbial enzyme activity
antioxidative activity in tissue
probiotic bacteria
title Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health
title_full Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health
title_fullStr Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health
title_full_unstemmed Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health
title_short Beneficial Effects of Laurel (<i>Laurus nobilis</i> L.) and Myrtle (<i>Myrtus communis</i> L.) Extract on Rat Health
title_sort beneficial effects of laurel i laurus nobilis i l and myrtle i myrtus communis i l extract on rat health
topic Laurel extract
Myrtle extract
gut microbial enzyme activity
antioxidative activity in tissue
probiotic bacteria
url https://www.mdpi.com/1420-3049/27/2/581
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