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Azmat F, Safdar M, Ahmad H, Khan MRJ, Abid J, Naseer MS, Aggarwal S, Imran A, Khalid U, Zahra SM, Islam F, Cheema SA, Shehzadi U, Ali R, Kinki AB, Ali YA, Suleria HAR. Phytochemical profile, nutritional composition of pomegranate peel and peel extract as a potential source of nutraceutical: A comprehensive review. Food Sci Nutr 2024; 12:661-674. [PMID: 38370077 PMCID: PMC10867480 DOI: 10.1002/fsn3.3777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 09/30/2023] [Accepted: 10/07/2023] [Indexed: 02/20/2024] Open
Abstract
The current study focuses on Punica granatum L. (pomegranate) peel and peel extract and their use as functional foods, food additives, or physiologically active constituents in nutraceutical formulations. The pomegranate peel extract is a good source of bioactive substances needed for the biological activity of the fruit, including phenolic acids, minerals, flavonoids (anthocyanins), and hydrolyzable tannins (gallic acid). The macromolecules found in pomegranate peel and peel extract have been recommended as substitutes for synthetic nutraceuticals, food additives, and chemo-preventive agents because of their well-known ethno-medical significance and chemical properties. Moreover, considering the promises for both their health-promoting activities and chemical properties, the dietary and nutraceutical significance of pomegranate peel and pomegranate peel extract appears to be underestimated. The present review article details their nutritional composition, phytochemical profile, food applications, nutraceutical action, and health benefits.
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Affiliation(s)
- Faiza Azmat
- Department of Nutritional Sciences and Environmental DesignAllama Iqbal Open UniversityIslamabadPakistan
| | - Mahpara Safdar
- Department of Nutritional Sciences and Environmental DesignAllama Iqbal Open UniversityIslamabadPakistan
| | - Hajra Ahmad
- Department of Nutritional Sciences and Environmental DesignAllama Iqbal Open UniversityIslamabadPakistan
| | | | - Junaid Abid
- Department of Food Science and TechnologyUniversity of HaripurHaripurPakistan
| | | | - Saurabh Aggarwal
- Department of Mechanical Engineering Uttaranchal Institute of TechnologyUttaranchal UniversityDehradunIndia
| | - Ali Imran
- Department of Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Urma Khalid
- Department of Nutritional Sciences and Environmental DesignAllama Iqbal Open UniversityIslamabadPakistan
| | - Syeda Mahvish Zahra
- Department of Nutritional Sciences and Environmental DesignAllama Iqbal Open UniversityIslamabadPakistan
- Institute of Food Science and NutritionUniversity of SargodhaSargodhaPakistan
| | - Fakhar Islam
- Department of Clinical NutritionNUR International UniversityLahorePakistan
- Department of Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Sadia Arif Cheema
- Department of Nutritional Sciences and Environmental DesignAllama Iqbal Open UniversityIslamabadPakistan
| | - Umber Shehzadi
- Department of Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Rehman Ali
- Department of Food SciencesGovernment College UniversityFaisalabadPakistan
| | - Abdela Befa Kinki
- Food Science and NutritionEthiopian Institute of Agricultural ResearchAddis AbabaEthiopia
| | - Yuosra Amer Ali
- Department of Food Sciences, College of Agriculture and ForestryUniversity of MosulMosulIraq
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Chatzikostopoulos T, Gialaouzidis M, Koutoupa A, Tsolaki M. The Effects of Pomegranate Seed Oil on Mild Cognitive Impairment. J Alzheimers Dis 2024; 97:1961-1970. [PMID: 38306046 PMCID: PMC10977427 DOI: 10.3233/jad-231100] [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] [Accepted: 12/20/2023] [Indexed: 02/03/2024]
Abstract
Background In recent years, there has been a growing interest, supported by many experimental and clinical studies, about the benefits of pomegranate in preventing various pathologic conditions, including brain neurodegeneration. The pomegranate seed oil (PSO) contains high levels of fatty acids that have antioxidant and anti-inflammatory properties. Objective Due to the lack of clinical trials, the aim of the present study was to investigate the effects of PSO on cognition of people with mild cognitive impairment (MCI). Methods Eighty people with the diagnosis of MCI were randomized forty to take 5 drops of PSO and follow the Mediterranean Diet (MeDi) and forty just followed MeDi. All were examined with an extensive neuropsychological assessment before and after one year of treatment. Results The results showed that the participants who took the PSO had statistically significantly better global cognition (p = 0.004), verbal episodic memory (p = 0.009), and processing and executive functions (p < 0.001) in contrast with the participants who did not take it. Conclusions In conclusion, the PSO can be beneficial for people with MCI as it is helpful for some important cognitive domains. As PSO is a natural product that does not burden the human body, it can be used by people with MCI and be a significant and promising part of holistic approaches for the prevention of dementia.
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Affiliation(s)
- Thanos Chatzikostopoulos
- Greek Association of Alzheimer’s Disease and Related Disorders, Thessaloniki, Greece
- Laboratory of Neurodegenerative Diseases, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Aristotle University, Thessaloniki, Greece
| | - Moses Gialaouzidis
- Greek Association of Alzheimer’s Disease and Related Disorders, Thessaloniki, Greece
- Laboratory of Neurodegenerative Diseases, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Aristotle University, Thessaloniki, Greece
| | - Anna Koutoupa
- Greek Association of Alzheimer’s Disease and Related Disorders, Thessaloniki, Greece
- Laboratory of Neurodegenerative Diseases, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Aristotle University, Thessaloniki, Greece
| | - Magda Tsolaki
- Greek Association of Alzheimer’s Disease and Related Disorders, Thessaloniki, Greece
- Laboratory of Neurodegenerative Diseases, Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Balkan Center, Aristotle University, Thessaloniki, Greece
- First Department of Neurology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
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Larit F, León F. Therapeutics to Treat Psychiatric and Neurological Disorders: A Promising Perspective from Algerian Traditional Medicine. PLANTS (BASEL, SWITZERLAND) 2023; 12:3860. [PMID: 38005756 PMCID: PMC10674704 DOI: 10.3390/plants12223860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/05/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023]
Abstract
Ancient people sought out drugs in nature to prevent, cure, and treat their diseases, including mental illnesses. Plants were their primary source for meeting their healthcare needs. In Algeria, folk medicine remains a fundamental part of the local intangible knowledge. This study aims to conduct a comprehensive ethnomedicinal investigation and documentation of medicinal plants and the different plant formulations traditionally used in Algeria for the treatment of pain, psychiatric, and neurological disorders. It also intends to improve the current knowledge of Algerian folk medicine. Several scientific databases were used to accomplish this work. Based on this investigation, we identified 82 plant species belonging to 69 genera and spanning 38 distinct botanical families used as remedies to treat various psychological and neurological conditions. Their traditional uses and methods of preparation, along with their phytochemical composition, main bioactive constituents, and toxicity were noted. Therefore, this review provides a new resource of information on Algerian medicinal plants used in the treatment and management of neurological and psychological diseases, which can be useful not only for the documentation and conservation of traditional knowledge, but also for conducting future phytochemical and pharmacological studies.
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Affiliation(s)
- Farida Larit
- Laboratoire d’Obtention de Substances Thérapeutiques (LOST), Université Frères Mentouri-Constantine 1, Route de Ain El Bey, Constantine 25017, Algeria
| | - Francisco León
- Department of Drug Discovery and Biomedical Sciences, College of Pharmacy, University of South Carolina, Columbia, SC 29208, USA;
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Verdú D, Valls A, Díaz A, Carretero A, Dromant M, Kuligowski J, Serna E, Viña J. Pomegranate Extract Administration Reverses Loss of Motor Coordination and Prevents Oxidative Stress in Cerebellum of Aging Mice. Antioxidants (Basel) 2023; 12:1991. [PMID: 38001844 PMCID: PMC10669012 DOI: 10.3390/antiox12111991] [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: 10/08/2023] [Revised: 10/30/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
The cerebellum is responsible for complex motor functions, like maintaining balance and stance, coordination of voluntary movements, motor learning, and cognitive tasks. During aging, most of these functions deteriorate, which results in falls and accidents. The aim of this work was to elucidate the effect of a standardized pomegranate extract during four months of supplementation in elderly mice to prevent frailty and improve the oxidative state. Male C57Bl/6J eighteen-month-old mice were evaluated for frailty using the "Valencia Score" at pre-supplementation and post-supplementation periods. We analyzed lipid peroxidation in the cerebellum and brain cortex and the glutathione redox status in peripheral blood. In addition, a set of aging-related genes in cerebellum and apoptosis biomarkers was measured via real-time polymerase chain reaction (RT-PCR). Our results showed that pomegranate extract supplementation improved the motor skills of C57Bl/6J aged mice in motor coordination, neuromuscular function, and monthly weight loss, but no changes in grip strength and endurance were found. Furthermore, pomegranate extract reversed the increase in malondialdehyde due to aging in the cerebellum and increased the reduced glutathione/oxidized glutathione (GSH/GSSG) ratio in the blood. Finally, aging and apoptosis biomarkers improved in aged mice supplemented with pomegranate extract in the cerebellum but not in the cerebral cortex.
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Affiliation(s)
- David Verdú
- Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, University of Valencia, 46010 Valencia, Spain
| | - Alicia Valls
- Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, University of Valencia, 46010 Valencia, Spain
| | - Ana Díaz
- Central Unit for Research in Medicine (UCIM), University of Valencia, 46010 Valencia, Spain
| | - Aitor Carretero
- Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, University of Valencia, 46010 Valencia, Spain
| | - Mar Dromant
- Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, University of Valencia, 46010 Valencia, Spain
| | - Julia Kuligowski
- Neonatal Research Group, Health Research Institute La Fe (IISLaFe), 46026 Valencia, Spain
| | - Eva Serna
- Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, University of Valencia, 46010 Valencia, Spain
| | - José Viña
- Department of Physiology, Faculty of Medicine, University of Valencia, CIBERFES, 46010 Valencia, Spain
- Biomedical Research Institute INCLIVA, University of Valencia, 46010 Valencia, Spain
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Jin Y, Chen L, Yu Y, Hussain M, Zhong H. Bioactive Components in Fruit Interact with Gut Microbes. BIOLOGY 2023; 12:1333. [PMID: 37887043 PMCID: PMC10604038 DOI: 10.3390/biology12101333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 09/30/2023] [Accepted: 10/12/2023] [Indexed: 10/28/2023]
Abstract
Fruits contain many bioactive compounds, including polysaccharides, oligosaccharides, polyphenols, anthocyanins, and flavonoids. All of these bioactives in fruit have potentially beneficial effects on gut microbiota and host health. On the one hand, fruit rich in active ingredients can act as substrates to interact with microorganisms and produce metabolites to regulate the gut microbiota. On the other hand, gut microbes could promote health effects in the host by balancing dysbiosis of gut microbiota. We have extensively analyzed significant information on bioactive components in fruits based on Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). Although the deep mechanism of action of bioactive components in fruits on gut microbiota needs further study, these results also provide supportive information on fruits as a source of dietary active ingredients to provide support for the adjunctive role of fruits in disease prevention and treatment.
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Affiliation(s)
- Yuanyuan Jin
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (Y.J.); (Y.Y.)
| | - Ling Chen
- Sanya Branch of Hainan Food and Drug Inspection Institute, Sanya 572011, China;
| | - Yufen Yu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (Y.J.); (Y.Y.)
| | - Muhammad Hussain
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (Y.J.); (Y.Y.)
| | - Hao Zhong
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou 310014, China; (Y.J.); (Y.Y.)
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Ciccone L, Nencetti S, Rossello A, Orlandini E. Pomegranate: A Source of Multifunctional Bioactive Compounds Potentially Beneficial in Alzheimer's Disease. Pharmaceuticals (Basel) 2023; 16:1036. [PMID: 37513947 PMCID: PMC10385237 DOI: 10.3390/ph16071036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/07/2023] [Accepted: 07/20/2023] [Indexed: 07/30/2023] Open
Abstract
Pomegranate fruit (PF) is a fruit rich in nutraceuticals. Nonedible parts of the fruit, especially peels, contain high amounts of bioactive components that have been largely used in traditional medicine, such as the Chinese, Unani, and Ayurvedic ones, for treating several diseases. Polyphenols such as anthocyanins, tannins, flavonoids, phenolic acids, and lignans are the major bioactive molecules present in PF. Therefore, PF is considered a source of natural multifunctional agents that exert simultaneously antioxidant, anti-inflammatory, antitumor, antidiabetic, cardiovascular, and neuroprotective activities. Recently, several studies have reported that the nutraceuticals contained in PF (seed, peel, and juice) have a potential beneficial role in Alzheimer's disease (AD). Research suggests that the neuroprotective effect of PF is mostly due to its potent antioxidant and anti-inflammatory activities which contribute to attenuate the neuroinflammation associated with AD. Despite the numerous works conducted on PF, to date the mechanism by which PF acts in combatting AD is not completely known. Here, we summarize all the recent findings (in vitro and in vivo studies) related to the positive effects that PF and its bioactive components can have in the neurodegeneration processes occurring during AD. Moreover, considering the high biotransformation characteristics of the nutraceuticals present in PF, we propose to consider the chemical structure of its active metabolites as a source of inspiration to design new molecules with the same beneficial effects but less prone to be affected by the metabolic degradation process.
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Affiliation(s)
- Lidia Ciccone
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Susanna Nencetti
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
| | - Armando Rossello
- Department of Pharmacy, University of Pisa, Via Bonanno 6, 56126 Pisa, Italy
- Research Center "E. Piaggio", University of Pisa, 56122 Pisa, Italy
| | - Elisabetta Orlandini
- Research Center "E. Piaggio", University of Pisa, 56122 Pisa, Italy
- Department of Earth Sciences, University of Pisa, Via Santa Maria 53, 56126 Pisa, Italy
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Leyrolle Q, Prado-Perez L, Layé S. The gut-derived metabolites as mediators of the effect of healthy nutrition on the brain. Front Nutr 2023; 10:1155533. [PMID: 37360297 PMCID: PMC10289296 DOI: 10.3389/fnut.2023.1155533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 05/10/2023] [Indexed: 06/28/2023] Open
Abstract
Nutrition is now well recognized to be an environmental factor which positively or negatively influences the risk to develop neurological and psychiatric disorders. The gut microbiota has recently been shown to be an important actor mediating the relationship between environmental factors, including nutrition, and brain function. While its composition has been widely studied and associated with the risk of brain diseases, the mechanisms underlying the relationship between the gut and brain diseases remain to be explored. The wide range of bioactive molecules produced by the gut microbiota, called gut-derived metabolites (GDM), represent new players in the gut to brain interactions and become interesting target to promote brain health. The aim of this narrative review is to highlight some GDMs of interest that are produced in response to healthy food consumption and to summarize what is known about their potential effects on brain function. Overall, GDMs represent future useful biomarkers for the development of personalized nutrition. Indeed, their quantification after nutritional interventions is a useful tool to determine individuals' ability to produce microbiota-derived bioactive compounds upon consumption of specific food or nutrients. Moreover, GDMs represent also a new therapeutic approach to counteract the lack of response to conventional nutritional interventions.
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Mohammadi M, Boghrati Z, Emami SA, Akaberi M. Pomegranate: A review of the heavenly healer's past, present, and future. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2023; 26:1245-1264. [PMID: 37886004 PMCID: PMC10598818 DOI: 10.22038/ijbms.2023.72816.15844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 07/15/2023] [Indexed: 10/28/2023]
Abstract
In the great Persian Empire, pomegranate (Punica granatum L.) had a wide reputation for use both as an herbal medicine and nutritious food. It was also a symbol of peace and love according to Achaemenid limestones in the great Persia. This paper aims to review the traditional uses of pomegranate in Persian and Islamic traditional medicine and have thorough and current information regarding the pharmacology and phytochemistry of this valuable plant for practical use and further research. Relevant information about P. granatum was collected from scientific publishers and databases including Elsevier, Wiley, PubMed, and Google Scholar between 1950 and 2022. The traditional knowledge was extracted from Persian and Islamic traditional textbooks. Based on traditional textbooks, pomegranate has beneficial effects on diseases related to gastrointestinal, upper and lower respiratory, visual, and reproductive systems. In addition, pomegranate and its preparations have been prescribed for treating metabolic disorders, skin problems, and wounds as well as dental protection. Preclinical and clinical evidence supports many therapeutic potentials of pomegranate in traditional medicine. Its therapeutic effects are mostly attributed to its polyphenols. The knowledge in Persian and Islamic traditional textbooks about pomegranate and its preparations can be used as a guide for further preclinical and mainly clinical studies to discover the therapeutic potential of this valuable plant.
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Affiliation(s)
- Mehran Mohammadi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zahra Boghrati
- Department of Traditional Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Ahmad Emami
- Department of Traditional Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Maryam Akaberi
- Department of Pharmacognosy, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Wen L, Miao X, Ding J, Tong X, Wu Y, He Y, Zheng F. Pesticides as a risk factor for cognitive impairment: Natural substances are expected to become alternative measures to prevent and improve cognitive impairment. Front Nutr 2023; 10:1113099. [PMID: 36937345 PMCID: PMC10016095 DOI: 10.3389/fnut.2023.1113099] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/01/2023] [Indexed: 03/08/2023] Open
Abstract
Pesticides are the most effective way to control diseases, insects, weeds, and fungi. The central nervous system (CNS) is damaged by pesticide residues in various ways. By consulting relevant databases, the systemic relationships between the possible mechanisms of pesticides damage to the CNS causing cognitive impairment and related learning and memory pathways networks, as well as the structure-activity relationships between some natural substances (such as polyphenols and vitamins) and the improvement were summarized in this article. The mechanisms of cognitive impairment caused by pesticides are closely related. For example, oxidative stress, mitochondrial dysfunction, and neuroinflammation can constitute three feedback loops that interact and restrict each other. The mechanisms of neurotransmitter abnormalities and intestinal dysfunction also play an important role. The connection between pathways is complex. NMDAR, PI3K/Akt, MAPK, Keap1/Nrf2/ARE, and NF-κB pathways can be connected into a pathway network by targets such as Ras, Akt, and IKK. The reasons for the improvement of natural substances are related to their specific structure, such as polyphenols with different hydroxyl groups. This review's purpose is to lay a foundation for exploring and developing more natural substances that can effectively improve the cognitive impairment caused by pesticides.
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Affiliation(s)
- Liankui Wen
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Xiwen Miao
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Jia Ding
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Xuewen Tong
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
| | - Yuzhu Wu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, China
- *Correspondence: Yuzhu Wu, ✉
| | - Yang He
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- Yang He, ✉
| | - Fei Zheng
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, China
- Fei Zheng, ✉
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Identification of Small-Molecule Bioactive Constituents from the Leaves of Vaccinium bracteatum Confirms It as a Potential Functional Food with Health Benefits. Foods 2023; 12:foods12010177. [PMID: 36613392 PMCID: PMC9818789 DOI: 10.3390/foods12010177] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/25/2022] [Accepted: 12/26/2022] [Indexed: 01/03/2023] Open
Abstract
The health benefits of Vaccinium bracteatum are well recorded in ancient Chinese medical books and were also demonstrated by modern researches. However, the relationship between its beneficial functions and specific chemical constituents has not been fully characterized. This study investigated the bioactive small-molecule constituents in the leaves of V. bracteatum, which afforded 32 compounds including ten new ones (1-9) and ten pairs of enantiomers (9-18). Their structures with absolute configurations were elucidated by spectroscopic methods, especially nuclear magnetic resonance (NMR) and electronic circular dichroism (ECD) analyses, with 1-4 bearing a novel revolving-door shaped scaffold. While half-compounds exhibited decent antioxidant activity by scavenging 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals, all except 19 and 20 exerted significant capturing activity against diammonium 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS) radicals. In addition, the new iridoids 1, 5, 6, and 7 exerted apparent neuroprotective activity toward PC12 cells, with 1 being comparable to the positive control, and selective compounds also displayed anti-diabetic and anti-inflammatory properties by inhibiting α-glucosidase and NO production, respectively. The current work revealed that the bioactive small-molecule constituents could be closely related to the functional food property of the title species.
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Behind the Scenes of Anthocyanins-From the Health Benefits to Potential Applications in Food, Pharmaceutical and Cosmetic Fields. Nutrients 2022; 14:nu14235133. [PMID: 36501163 PMCID: PMC9738495 DOI: 10.3390/nu14235133] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/25/2022] [Accepted: 11/28/2022] [Indexed: 12/09/2022] Open
Abstract
Anthocyanins are widespread and biologically active water-soluble phenolic pigments responsible for a wide range of vivid colours, from red (acidic conditions) to purplish blue (basic conditions), present in fruits, vegetables, and coloured grains. The pigments' stability and colours are influenced mainly by pH but also by structure, temperature, and light. The colour-stabilizing mechanisms of plants are determined by inter- and intramolecular co-pigmentation and metal complexation, driven by van der Waals, π-π stacking, hydrogen bonding, and metal-ligand interactions. This group of flavonoids is well-known to have potent anti-inflammatory and antioxidant effects, which explains the biological effects associated with them. Therefore, this review provides an overview of the role of anthocyanins as natural colorants, showing they are less harmful than conventional colorants, with several technological potential applications in different industrial fields, namely in the textile and food industries, as well as in the development of photosensitizers for dye-sensitized solar cells, as new photosensitizers in photodynamic therapy, pharmaceuticals, and in the cosmetic industry, mainly on the formulation of skin care formulations, sunscreen filters, nail colorants, skin & hair cleansing products, amongst others. In addition, we will unveil some of the latest studies about the health benefits of anthocyanins, mainly focusing on the protection against the most prevalent human diseases mediated by oxidative stress, namely cardiovascular and neurodegenerative diseases, cancer, and diabetes. The contribution of anthocyanins to visual health is also very relevant and will be briefly explored.
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