Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products

The present paper reports a sustainable raw material obtained from the by-products derived from the industrial production of bergamot (<i>Citrus</i> × <i>Bergamia</i> Risso & Poiteau) essential oils. The procedure to obtain the raw material is designed to maintain as much...

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Main Authors: Larissa Della Vedova, Francesca Gado, Taynara A. Vieira, Núbia A. Grandini, Thiago L. N. Palácio, Juliana S. Siqueira, Marina Carini, Ezio Bombardelli, Camila R. Correa, Giancarlo Aldini, Giovanna Baron
Format: Article
Language:English
Published: MDPI AG 2023-03-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/7/2964
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author Larissa Della Vedova
Francesca Gado
Taynara A. Vieira
Núbia A. Grandini
Thiago L. N. Palácio
Juliana S. Siqueira
Marina Carini
Ezio Bombardelli
Camila R. Correa
Giancarlo Aldini
Giovanna Baron
author_facet Larissa Della Vedova
Francesca Gado
Taynara A. Vieira
Núbia A. Grandini
Thiago L. N. Palácio
Juliana S. Siqueira
Marina Carini
Ezio Bombardelli
Camila R. Correa
Giancarlo Aldini
Giovanna Baron
author_sort Larissa Della Vedova
collection DOAJ
description The present paper reports a sustainable raw material obtained from the by-products derived from the industrial production of bergamot (<i>Citrus</i> × <i>Bergamia</i> Risso & Poiteau) essential oils. The procedure to obtain the raw material is designed to maintain as much of the bioactive components as possible and to avoid expensive chemical purification. It consists of spray-drying the fruit juice obtained by squeezing the fruits, which is mixed with the aqueous extract of the pulp, i.e., the solid residue remained after fruit pressing. The resulting powder bergamot juice (PBJ) contains multiple bioactive components, in particular, among others, soluble fibers, polyphenols and amino-acid betaines, such as stachydrine and betonicine. LC-MS analysis identified 86 compounds, with hesperetin, naringenin, apigenin and eridictyol glucosides being the main components. In the second part of the paper, dose-dependent anti-inflammatory activity of PBJ and of stachydrine was found, but neither of the compounds were effective in activating Nrf2. PBJ was then found to be effective in an in vivo model of a metabolic syndrome induced by a high-sugar, high-fat (HSF) diet and evidenced by a significant increase of the values related to a set of parameters: blood glucose, triglycerides, insulin resistance, systolic blood pressure, visceral adipose tissue and adiposity index. PBJ, when given to control rats, did not significantly change these values; in contrast, they were found to be greatly affected in rats receiving an HSF diet. The in vivo effect of PBJ can be ascribed not only to bergamot polyphenols with well-known anti-inflammatory, antioxidant and lipid-regulating effects, but also to the dietary fibers and to the non-phenolic constituents, such as stachydrine. Moreover, since PBJ was found to affect energy homeostasis and to regulate food intake, a mechanism on the regulation of energy homeostasis through leptin networking should also be considered and deserves further investigation.
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spelling doaj.art-d2252df689d342668ad09229a375a88f2023-11-17T17:11:31ZengMDPI AGMolecules1420-30492023-03-01287296410.3390/molecules28072964Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-ProductsLarissa Della Vedova0Francesca Gado1Taynara A. Vieira2Núbia A. Grandini3Thiago L. N. Palácio4Juliana S. Siqueira5Marina Carini6Ezio Bombardelli7Camila R. Correa8Giancarlo Aldini9Giovanna Baron10Department of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, ItalyDepartment of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, ItalyMedical School, Sao Paulo State University (Unesp), Botucatu 18618-687, BrazilMedical School, Sao Paulo State University (Unesp), Botucatu 18618-687, BrazilMedical School, Sao Paulo State University (Unesp), Botucatu 18618-687, BrazilMedical School, Sao Paulo State University (Unesp), Botucatu 18618-687, BrazilDepartment of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, ItalyPlantexresearch Srl, 20122 Milan, ItalyMedical School, Sao Paulo State University (Unesp), Botucatu 18618-687, BrazilDepartment of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, ItalyDepartment of Pharmaceutical Sciences, University of Milan, Via Mangiagalli 25, 20133 Milan, ItalyThe present paper reports a sustainable raw material obtained from the by-products derived from the industrial production of bergamot (<i>Citrus</i> × <i>Bergamia</i> Risso & Poiteau) essential oils. The procedure to obtain the raw material is designed to maintain as much of the bioactive components as possible and to avoid expensive chemical purification. It consists of spray-drying the fruit juice obtained by squeezing the fruits, which is mixed with the aqueous extract of the pulp, i.e., the solid residue remained after fruit pressing. The resulting powder bergamot juice (PBJ) contains multiple bioactive components, in particular, among others, soluble fibers, polyphenols and amino-acid betaines, such as stachydrine and betonicine. LC-MS analysis identified 86 compounds, with hesperetin, naringenin, apigenin and eridictyol glucosides being the main components. In the second part of the paper, dose-dependent anti-inflammatory activity of PBJ and of stachydrine was found, but neither of the compounds were effective in activating Nrf2. PBJ was then found to be effective in an in vivo model of a metabolic syndrome induced by a high-sugar, high-fat (HSF) diet and evidenced by a significant increase of the values related to a set of parameters: blood glucose, triglycerides, insulin resistance, systolic blood pressure, visceral adipose tissue and adiposity index. PBJ, when given to control rats, did not significantly change these values; in contrast, they were found to be greatly affected in rats receiving an HSF diet. The in vivo effect of PBJ can be ascribed not only to bergamot polyphenols with well-known anti-inflammatory, antioxidant and lipid-regulating effects, but also to the dietary fibers and to the non-phenolic constituents, such as stachydrine. Moreover, since PBJ was found to affect energy homeostasis and to regulate food intake, a mechanism on the regulation of energy homeostasis through leptin networking should also be considered and deserves further investigation.https://www.mdpi.com/1420-3049/28/7/2964bergamotpolyphenolsantioxidantanti-inflammatoryNfkBmetabolic syndrome
spellingShingle Larissa Della Vedova
Francesca Gado
Taynara A. Vieira
Núbia A. Grandini
Thiago L. N. Palácio
Juliana S. Siqueira
Marina Carini
Ezio Bombardelli
Camila R. Correa
Giancarlo Aldini
Giovanna Baron
Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products
Molecules
bergamot
polyphenols
antioxidant
anti-inflammatory
NfkB
metabolic syndrome
title Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products
title_full Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products
title_fullStr Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products
title_full_unstemmed Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products
title_short Chemical, Nutritional and Biological Evaluation of a Sustainable and Scalable Complex of Phytochemicals from Bergamot By-Products
title_sort chemical nutritional and biological evaluation of a sustainable and scalable complex of phytochemicals from bergamot by products
topic bergamot
polyphenols
antioxidant
anti-inflammatory
NfkB
metabolic syndrome
url https://www.mdpi.com/1420-3049/28/7/2964
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