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Weyya G, Belay A, Tadesse E. Passion fruit ( Passiflora edulis Sims) by-products as a source of bioactive compounds for non-communicable disease prevention: extraction methods and mechanisms of action: a systematic review. Front Nutr 2024; 11:1340511. [PMID: 38903622 PMCID: PMC11187344 DOI: 10.3389/fnut.2024.1340511] [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: 11/27/2023] [Accepted: 05/21/2024] [Indexed: 06/22/2024] Open
Abstract
Introduction The review titled Passion fruit by-products as a source of bioactive compounds for non-communicable disease prevention: extraction methods and mechanisms provide valuable insights into the health benefits and industrial applications of passion fruit waste. Passion fruits are a tropical and subtropical vine species, which produces edible fruits. Many food product types can be made from passion fruits. However, during passion fruit processing, large amounts of waste are released in to the environment. This review focuses on extraction methods of bioactive compounds from passion fruit by-products such as leaves, peels, seeds, and bagasse. Methods This comprehensive review focuses on the bioactive compounds present in passion fruit by-products, emphasis on their mechanisms of action on non-communicable diseases. It also provides a detailed analysis of the extraction methods used to obtain these bioactive compounds, their potential industrial applications, and the factors that affect extraction efficiency. Results This review encourages further research and innovation in utilization of passion fruit waste as a source of bioactive compounds for non- communicable disease prevention and their mechanisms of action. This can advance the circular economy. It also highlights the importance of sustainable and green extraction methods, which have gained attention due to environmental concerns. Discussion Unlike previous reviews, this comprehensive article explores the potential health benefits of multiple passion fruit waste products. It also examines the possible applications of these extracts for industrial goods such as food additives, colorants, nutraceuticals, natural antioxidants, and antimicrobial agents. Overall, it contributes new information emphasizing the potential of passion fruit by-products as a source of bioactive, and the findings have implications for the scientific community and industry, promoting a deeper understanding of the health benefits and sustainable practices associated with passion fruit waste utilization.
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Affiliation(s)
- Getu Weyya
- Department of Food Science and Applied Nutrition, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Abera Belay
- Department of Food Science and Applied Nutrition, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
| | - Eneyew Tadesse
- Department of Food Science and Applied Nutrition, Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
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Nikolova K, Velikova M, Gentscheva G, Gerasimova A, Slavov P, Harbaliev N, Makedonski L, Buhalova D, Petkova N, Gavrilova A. Chemical Compositions, Pharmacological Properties and Medicinal Effects of Genus Passiflora L.: A Review. PLANTS (BASEL, SWITZERLAND) 2024; 13:228. [PMID: 38256781 PMCID: PMC10820460 DOI: 10.3390/plants13020228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
Practically all aboveground plants parts of Passiflora vines can be included in the compositions of dietary supplements, medicines, and cosmetics. It has a diverse chemical composition and a wide range of biologically active components that determine its diverse pharmacological properties. Studies related to the chemical composition of the plant are summarized here, and attention has been paid to various medical applications-(1) anti-inflammatory, nephroprotective; (2) anti-depressant; (3) antidiabetic; (4) hepatoprotective; (5) antibacterial and antifungal; and (6) antipyretic and other. This review includes studies on the safety, synergistic effects, and toxicity that may occur with the use of various dietary supplements based on it. Attention has been drawn to its application in cosmetics and to patented products containing passionflower.
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Affiliation(s)
- Krastena Nikolova
- Department of Physics and Biophysics, Medical University-Varna, 9000 Varna, Bulgaria
| | - Margarita Velikova
- Department of Physiology, Medical University-Varna, 9000 Varna, Bulgaria;
| | - Galia Gentscheva
- Department of Chemistry and Biochemistry, Medical University-Pleven, 5800 Pleven, Bulgaria
| | - Anelia Gerasimova
- Department of Chemistry, Medical University-Varna, 9000 Varna, Bulgaria; (A.G.); (L.M.)
| | - Pavlo Slavov
- Faculty of Medicine, Medical University-Varna, 9000 Varna, Bulgaria; (P.S.)
| | - Nikolay Harbaliev
- Faculty of Medicine, Medical University-Varna, 9000 Varna, Bulgaria; (P.S.)
| | - Lubomir Makedonski
- Department of Chemistry, Medical University-Varna, 9000 Varna, Bulgaria; (A.G.); (L.M.)
| | - Dragomira Buhalova
- Department of Nutrient and Catering, University of Food Technology, 4002 Plovdiv, Bulgaria;
| | - Nadezhda Petkova
- Department of Organic Chemistry and Inorganic Chemistry, University of Food Technology, 4002 Plovdiv, Bulgaria;
| | - Anna Gavrilova
- Department of Pharmaceutical Chemistry and Pharmacognosy, Medical University-Pleven, 5800 Pleven, Bulgaria;
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Extract of Calyces from Physalis peruviana Reduces Insulin Resistance and Oxidative Stress in Streptozotocin-Induced Diabetic Mice. Pharmaceutics 2022; 14:pharmaceutics14122758. [PMID: 36559252 PMCID: PMC9783217 DOI: 10.3390/pharmaceutics14122758] [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: 10/10/2022] [Revised: 11/24/2022] [Accepted: 12/02/2022] [Indexed: 12/13/2022] Open
Abstract
Diabetes mellitus is a metabolic disorder mainly characterized by obesity, hyperglycemia, altered lipid profile, oxidative stress, and vascular compromise. Physalis peruviana is a plant used in traditional Colombian medicine for its known activities of glucose regulation. This study aimed to evaluate the anti-diabetic activity of the butanol fraction from an extract of Physalis peruviana calyces in two doses (50 mg/kg and 100 mg/kg) in induced type 2 diabetic mice. Blood glucose levels were evaluated once a week, demonstrating that a dose of 100 mg/kg resulted in greater regulation of blood glucose levels in mice throughout the experiment. The same overall result was found for the oral glucose tolerance test (OGTT) and the homeostatic model assessment for insulin resistance (HOMA- IR). The lipid profile exhibited improvement compared to the non-treated group, a dose of 100 mg/kg having greater protection against oxidative stress (catalase, superoxide dismutase, and malondialdehyde levels). Histopathological findings in several tissues showed structure preservation in most of the animals treated. The butanol fraction from Physalis peruviana at 100 mg/kg showed beneficial results in improving hyperglycemia, lipidemia, and oxidative stress status, and can therefore be considered a beneficial coadjuvant in the therapy of diabetes mellitus.
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Chemical structure, antioxidant and anti-inflammatory activities of two novel pectin polysaccharides from purple passion fruit (Passiflora edulia Sims) peel. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133309] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Lucas-González R, Capanoglu E, Pateiro M, Mousavi Khaneghah A, Hano C, Lorenzo JM. Current trends in Passiflora genus research: Obesity and fermented foods systematic review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kawakami S, Morinaga M, Tsukamoto-Sen S, Mori S, Matsui Y, Kawama T. Constituent Characteristics and Functional Properties of Passion Fruit Seed Extract. Life (Basel) 2021; 12:38. [PMID: 35054431 PMCID: PMC8781723 DOI: 10.3390/life12010038] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/16/2021] [Accepted: 12/24/2021] [Indexed: 12/13/2022] Open
Abstract
The genus Passiflora L. is widely cultivated in tropical and subtropical regions. The major species, Passiflora edulis Sims, is known as 'passion fruit' and is widely used in processed foods as well as eaten raw. P. edulis fruits are eaten for their pulp together with the seeds; however, the seeds are often discarded when used in processed foods. P. edulis seeds contain a variety of nutrients and functional components, and their industrial use is desirable from the perspective of waste reduction. Previous studies have analyzed the constituents of P. edulis and their physiological functions. P. edulis seeds contain various types of polyphenols, especially those rich in stilbenes (e.g., piceatannol). P. edulis seed extracts and isolated compounds from seeds have been reported to exhibit various physiological functions, such as antioxidant effects, improvement of skin condition, fat-burning promotion effects, and hypoglycemic effects. This review summarizes the nutritional characteristics, polyphenol content, and physiological functions of P. edulis seeds.
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Affiliation(s)
- Shinpei Kawakami
- Health Science Research Center, R & D Institute, Morinaga & Co., Ltd., 2-1-1 Shimosueyoshi, Tsurumi-ku, Yokohama 230-8504, Japan; (M.M.); (S.T.-S.); (S.M.); (Y.M.); (T.K.)
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de Araújo Esteves Duarte I, Milenkovic D, Borges TK, de Lacerda de Oliveira L, Costa AM. Brazilian passion fruit as a new healthy food: from its composition to health properties and mechanisms of action. Food Funct 2021; 12:11106-11120. [PMID: 34651638 DOI: 10.1039/d1fo01976g] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The Brazilian biodiversity is one of the largest in the world, with about 41 000 species cataloged within two global biodiversity hotspots: Atlantic Forest and Cerrado, the Brazilian savannah. Passiflora, known also as passion flowers, is a genus of which 96% of its species are distributed in the Americas, mainly Brazil and Colombia. Passion fruit extracts have a commercial value on a global scale through the pharmaceutical, nutraceutical, self-care, and food and beverage industries. Passiflora are widely studied due to their potential antioxidant, anti-inflammatory, anxiolytic, antidepressant and vascular and neuronal protective effects, probably owing to their content of polyphenols. Passiflora setacea DC is a species of wild passion fruit from the Brazilian Cerrado, rich in flavonoid C-glycosides, homoorientin, vitexin, isovitexin and orientin. Intake of these plant food bioactives has been associated with protection against chronic non-communicable diseases (CNDCs), including cardiovascular diseases, cancers, and neurodegenerative diseases. In this review, we aimed to discuss the varieties of Passiflora, their content in plant food bioactives and their potential molecular mechanisms of action in preventing or reversing CNDCs.
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Affiliation(s)
- Isabella de Araújo Esteves Duarte
- Postgraduate Program in Human Nutrition, College of Health Sciences, Campus Universitário Darcy Ribeiro, University of Brasilia, Brasília DF 70.910-900, Brazil.
| | - Dragan Milenkovic
- Unité de Nutrition Humaine, Université Clermont Auvergne, INRAE, UNH, F-63000 Clermont-Ferrand, France.,Department of Internal Medicine, Division of Cardiovascular Medicine, School of Medicine, University of California Davis, Davis, CA 95616, USA
| | - Tatiana Karla Borges
- Laboratory of Cellular Immunology, Faculty of Medicine, University of Brasilia, Brasília DF 70.910-900, Brazil
| | - Livia de Lacerda de Oliveira
- Postgraduate Program in Human Nutrition, College of Health Sciences, Campus Universitário Darcy Ribeiro, University of Brasilia, Brasília DF 70.910-900, Brazil.
| | - Ana Maria Costa
- Laboratory of Food Science, Embrapa Cerrados, Planaltina DF 73.310-970, Brazil
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My-Thao Nguyen T, Anh-Thu Nguyen T, Tuong-Van Pham N, Ly QV, Thuy-Quynh Tran T, Thach TD, Nguyen CL, Banh KS, Le VD, Nguyen LP, Nguyen DT, Dang CH, Nguyen TD. Biosynthesis of metallic nanoparticles from waste Passiflora edulis peels for their antibacterial effect and catalytic activity. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103096] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
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Antioxidant Molecules from Plant Waste: Extraction Techniques and Biological Properties. Processes (Basel) 2020. [DOI: 10.3390/pr8121566] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The fruit, vegetable, legume, and cereal industries generate many wastes, representing an environmental pollution problem. However, these wastes are a rich source of antioxidant molecules such as terpenes, phenolic compounds, phytosterols, and bioactive peptides with potential applications mainly in the food and pharmaceutical industries, and they exhibit multiple biological properties including antidiabetic, anti-obesity, antihypertensive, anticancer, and antibacterial properties. The aforementioned has increased studies on the recovery of antioxidant compounds using green technologies to value plant waste, since they represent more efficient and sustainable processes. In this review, the main antioxidant molecules from plants are briefly described and the advantages and disadvantages of the use of conventional and green extraction technologies used for the recovery and optimization of the yield of antioxidant naturals are detailed; finally, recent studies on biological properties of antioxidant molecules extracted from plant waste are presented here.
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He X, Luan F, Yang Y, Wang Z, Zhao Z, Fang J, Wang M, Zuo M, Li Y. Passiflora edulis: An Insight Into Current Researches on Phytochemistry and Pharmacology. Front Pharmacol 2020; 11:617. [PMID: 32508631 PMCID: PMC7251050 DOI: 10.3389/fphar.2020.00617] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 04/20/2020] [Indexed: 12/16/2022] Open
Abstract
Passiflora edulis, also known as passion fruit, is widely distributed in tropical and subtropical areas of the world and becomes popular because of balanced nutrition and health benefits. Currently, more than 110 phytochemical constituents have been found and identified from the different plant parts of P. edulis in which flavonoids and triterpenoids held the biggest share. Various extracts, fruit juice and isolated compounds showed a wide range of health effects and biological activities such as antioxidant, anti-hypertensive, anti-tumor, antidiabetic, hypolipidemic activities, and so forth. Daily consumption of passion fruit at common doses is non-toxic and safe. P. edulis has great potential development and the vast future application for this economically important crop worldwide, and it is in great demand as a fresh product or a formula for food, health care products or medicines. This mini-review aims to provide systematically reorganized information on physiochemical features, nutritional benefits, biological activities, toxicity, and potential applications of leaves, stems, fruits, and peels of P. edulis.
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Affiliation(s)
- Xirui He
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Fei Luan
- Department of Pharmacology, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yan Yang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Ze Wang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Zefeng Zhao
- College of Life Sciences, Northwest University, Xi’an, China
| | - Jiacheng Fang
- College of Life Sciences, Northwest University, Xi’an, China
| | - Min Wang
- Department of Bioengineering, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Manhua Zuo
- Department of Nursing, Zhuhai Campus of Zunyi Medical University, Zhuhai, China
| | - Yongsheng Li
- Department of Pharmacy, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
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Impact of Isoorientin on Metabolic Activity and Lipid Accumulation in Differentiated Adipocytes. Molecules 2020; 25:molecules25081773. [PMID: 32294890 PMCID: PMC7221924 DOI: 10.3390/molecules25081773] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 03/30/2020] [Accepted: 04/01/2020] [Indexed: 01/09/2023] Open
Abstract
The current study explored the effect of isoorientin on the metabolic activity and lipid accumulation in fully differentiated 3T3-L1 adipocytes. To achieve this, the 3T3-L1 pre-adipocytes were differentiated for eight days and treated with various concentrations of isoorientin (0.1–100 μM) for four hours. Subsequently, the metabolic activity, lipid accumulation, and mitochondrial respiration were assessed. Furthermore, to unravel the molecular mechanisms that might elucidate the bioactivity of isoorientin, protein expression of the genes involved in insulin signaling and energy expenditure, such as AKT and AMPK, were investigated. The results showed that isoorientin, at different doses, could block lipid storage and enhance glycerol release, with a concomitant improvement of the metabolic activity and mitochondrial function. Although the observed beneficial effects of isoorientin on these cultured 3T3-L1 adipocytes were not consistent at all concentrations, it was clear that doses between 1 and 10 μM were most effective compared to the untreated control. Moreover, the activity of isoorientin was comparable to tested positive controls of CL-316,2431, isoproterenol, insulin, and metformin. Mechanistically, protein expression of AKT and AMPK, was enhanced with isoorientin exposure, suggesting their partial role in modulating lipid metabolism and mitochondrial biogenesis. Indeed, our results showed that isoorientin has the ability to enhance mitochondrial respiration, as we observed an increase in the ATP and oxygen consumption rate. Therefore, we concluded that isoorientin has a potential to impact mitochondrial activity, lipid metabolism and energy expenditure using an in vitro experimental model of obesity.
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De Faveri A, De Faveri R, Broering MF, Bousfield IT, Goss MJ, Muller SP, Pereira RO, de Oliveira E Silva AM, Machado ID, Quintão NLM, Santin JR. Effects of passion fruit peel flour (Passiflora edulis f. flavicarpa O. Deg.) in cafeteria diet-induced metabolic disorders. JOURNAL OF ETHNOPHARMACOLOGY 2020; 250:112482. [PMID: 31866512 DOI: 10.1016/j.jep.2019.112482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 12/11/2019] [Accepted: 12/12/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Passiflora edulis f. flavicarpa O. Deg. is a native Brazilian fruit known as sour or yellow passion fruit. From its peel, mainly in the northeast of Brazil, is produced a flour that is largely used as folk medicine to treat diabetes and other metabolic conditions. AIM OF THE STUDY The aim of the study was to show the effects of P. edulis peel flour (PEPF) in metabolic disorders caused by cafeteria diet in mice. MATERIAL AND METHODS The antioxidant activity in vitro of PEPF extract was determined by ferric reducing/antioxidant power, β-carotene/linoleic acid system and nitric oxide scavenging activity assay. C57BL/6 mice divided in 3 groups: Control group, fed on a standard diet (AIN); Cafeteria diet (CAF) group, fed on a cafeteria diet, and PEPF group, fed on a cafeteria diet containing 15% of PEPF, during 16 weeks. The glucose tolerance and insulin sensitivity were evaluated through the glucose tolerance test (GTT) and the insulin tolerance test (ITT). After the intervention period, blood, hepatic, pancreatic and adipose tissues were collected for biochemical and histological analysis. Cholesterol, triglyceride, interleukins and antioxidant enzymes were measured in the liver tissue. RESULTS PEPF extract presented antioxidant activity in the higher concentrations in the performed assays. The PEPF intake decreased the body weight gain, fat deposition, predominantly in the liver, improved the glucose tolerance and insulin sensitivity in metabolic changes caused by cafeteria diet. CONCLUSION Together, the data herein obtained points out that P. edulis peel flour supplementation in metabolic syndrome condition induced by CAF-diet, prevents insulin and glucose resistance, hepatic steatosis and adiposity.
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Affiliation(s)
- Aline De Faveri
- Postgraduate Program in Pharmaceutical Science, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Renata De Faveri
- Biomedicine Course, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Milena Fronza Broering
- Postgraduate Program in Pharmaceutical Science, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Izabel Terranova Bousfield
- Postgraduate Program in Pharmaceutical Science, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Marina Jagielski Goss
- Postgraduate Program in Pharmaceutical Science, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil
| | - Samuel Paulo Muller
- Postgraduate Program in Biodiversity, Universidade Regional de Blumenau, Blumenau, Santa Catarina, Brazil
| | - Raquel Oliveira Pereira
- Nutrition Department (DNUT), Universidade Federal de Sergipe (UFS), São Cristóvão, Sergipe, Brazil
| | | | - Isabel Daufenback Machado
- Postgraduate Program in Biodiversity, Universidade Regional de Blumenau, Blumenau, Santa Catarina, Brazil
| | - Nara Lins Meira Quintão
- Postgraduate Program in Pharmaceutical Science, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil
| | - José Roberto Santin
- Postgraduate Program in Pharmaceutical Science, Universidade Do Vale Do Itajaí, Itajaí, Santa Catarina, Brazil.
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Furman BL, Candasamy M, Bhattamisra SK, Veettil SK. Reduction of blood glucose by plant extracts and their use in the treatment of diabetes mellitus; discrepancies in effectiveness between animal and human studies. JOURNAL OF ETHNOPHARMACOLOGY 2020; 247:112264. [PMID: 31600561 DOI: 10.1016/j.jep.2019.112264] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2019] [Revised: 09/03/2019] [Accepted: 09/29/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The global problem of diabetes, together with the limited access of large numbers of patients to conventional antidiabetic medicines, continues to drive the search for new agents. Ancient Asian systems such as traditional Chinese medicine, Japanese Kampo medicine, and Indian Ayurvedic medicine, as well as African traditional medicine and many others have identified numerous plants reported anecdotally to treat diabetes; there are probably more than 800 such plants for which there is scientific evidence for their activity, mostly from studies using various models of diabetes in experimental animals. AIM OF THE REVIEW Rather than a comprehensive coverage of the literature, this article aims to identify discrepancies between findings in animal and human studies, and to highlight some of the problems in developing plant extract-based medicines that lower blood glucose in patients with diabetes, as well as to suggest potential ways forward. METHODS In addition to searching the 2018 PubMed literature using the terms 'extract AND blood glucose, a search of the whole literature was conducted using the terms 'plant extracts' AND 'blood glucose' AND 'diabetes' AND 'double blind' with 'clinical trials' as a filter. A third search using PubMed and Medline was undertaken for systematic reviews and meta-analyses investigating the effects of plant extracts on blood glucose/glycosylated haemoglobin in patients with relevant metabolic pathologies. FINDINGS Despite numerous animal studies demonstrating the effects of plant extracts on blood glucose, few randomised, double-blind, placebo-controlled trials have been conducted to confirm efficacy in treating humans with diabetes; there have been only a small number of systematic reviews with meta-analyses of clinical studies. Qualitative and quantitative discrepancies between animal and human clinical studies in some cases were marked; the factors contributing to this included variations in the products among different studies, the doses used, differences between animal models and the human disease, and the impact of concomitant therapy in patients, as well as differences in the duration of treatment, and the fact that treatment in animals may begin before or very soon after the induction of diabetes. CONCLUSION The potential afforded by natural products has not yet been realised in the context of treating diabetes mellitus. A systematic, coordinated, international effort is required to achieve the goal of providing anti-diabetic treatments derived from medicinal plants.
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Affiliation(s)
- Brian L Furman
- Strathclyde Institute of Pharmacy & Biomedical Sciences, 161, Cathedral Street Glasgow, G4 ORE, Scotland, UK.
| | - Mayuren Candasamy
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
| | - Subrat Kumar Bhattamisra
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
| | - Sajesh K Veettil
- School of Pharmacy, International Medical University, Jalan Jalil Perkasa 19, Bukit Jalil, 57000, Kuala Lumpur, Malaysia.
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Guo R, Tian S, Li X, Wu X, Liu X, Li D, Liu Y, Ai L, Song Z, Wu Y. Pectic polysaccharides from purple passion fruit peel: A comprehensive study in macromolecular and conformational characterizations. Carbohydr Polym 2019; 229:115406. [PMID: 31826397 DOI: 10.1016/j.carbpol.2019.115406] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 09/16/2019] [Accepted: 09/29/2019] [Indexed: 12/28/2022]
Abstract
A polysaccharide (PFPP) from purple passion fruit peel was optimally extracted, with the highest yield (10.05%, w/w) obtained under 35 °C extraction temperature, 240 W ultrasonic power, 65:1 mL/g liquid-to-solid ratio, 0.6% (w/v) ammonium oxalate, 30 min extraction time and pH 2.0. According to composition analyses, pectic PFPP and its fractions (PFPP-10, -15 and -20) were revealed as linear homogalacturonans interrupted by rhamnogalacturonan I in different lengths and extensities, where low esterification degrees (35.35-39.66%) were indicated via FT-IR. Furthermore, based on macromolecular models, comprehensive analyses on macromolecular and conformational characterizations of PFPP fractions were conducted quantitatively through, e.g., shape factor (1.42-1.79), Mark-Houwink-Sakurada exponent (0.55-0.74), conformational power-law exponent (0.52-0.58), fractal dimension (1.72-1.94) and persistence length (6.73-13.47 nm). Therefore, different semi-flexible coil conformations were proposed schematically, where lower molecular-weight PFPP fractions were less flexible. This could provide a molecular basis for precise re-utilizations of PFPP in food and pharmaceutical industries.
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Affiliation(s)
- Rui Guo
- Shanghai Engineering Research Center of Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Sen Tian
- Shanghai Engineering Research Center of Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xujiao Li
- Shanghai Engineering Research Center of Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xuejiao Wu
- Shanghai Engineering Research Center of Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Xin Liu
- Shanghai Engineering Research Center of Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Deshun Li
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, National R&D Center for Edible Fungi Processing, Shanghai 201403, China
| | - Yanfang Liu
- Institute of Edible Fungi, Shanghai Academy of Agricultural Sciences, Key Laboratory of Edible Fungi Resources and Utilization (South), Ministry of Agriculture, National Engineering Research Center of Edible Fungi, National R&D Center for Edible Fungi Processing, Shanghai 201403, China
| | - Lianzhong Ai
- School of Medical Instrument and Food Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zibo Song
- Yunnan Maoduoli Group Food Co., Ltd., Yuxi 653100, China
| | - Yan Wu
- Shanghai Engineering Research Center of Food Safety, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China.
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