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Fernandes FA, Carocho M, Prieto MA, Barros L, Ferreira ICFR, Heleno SA. Nutraceuticals and dietary supplements: balancing out the pros and cons. Food Funct 2024; 15:6289-6303. [PMID: 38805010 DOI: 10.1039/d4fo01113a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2024]
Abstract
While the market is full of different dietary supplements, in most countries, legislation is clear and strict towards these products, with severe limitations on their health claims. Overall, the claims cannot go beyond the consumption of a said supplement will contribute to a healthy diet. Thus, the supplement industry has been reacting and changing their approach to consumers. One change is the considerable growth of the nutraceutical market, which provides naturally produced products, with low processing and close to no claims on the label. The marketing of this industry shifts from claiming several benefits on the label (dietary supplements) to relying on the knowledge of consumers towards the benefits of minimally processed foods filled with natural products (nutraceuticals). This review focuses on the difference between these two products, their consumption patterns, forms of presentation, explaining what makes them different, their changes through time, and their most notable ingredients, basically balancing out their pros and cons.
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Affiliation(s)
- Filipa A Fernandes
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, E-32004 Ourense, Spain
| | - Márcio Carocho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Miguel A Prieto
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Food Science and Technology, University of Vigo-Ourense Campus, E-32004 Ourense, Spain
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Isabel C F R Ferreira
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
| | - Sandrina A Heleno
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal.
- Laboratório Associado para a Sustentabilidade e Tecnologia em Regiões de Montanha (SusTEC), Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
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Paczkowska-Walendowska M, Ignacyk M, Miklaszewski A, Plech T, Karpiński TM, Kwiatek J, Swora-Cwynar E, Walendowski M, Cielecka-Piontek J. Electrospun Nanofibers with Pomegranate Peel Extract as a New Concept for Treating Oral Infections. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2558. [PMID: 38893822 PMCID: PMC11173823 DOI: 10.3390/ma17112558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024]
Abstract
Pomegranate peel extract is known for its potent antibacterial, antiviral, antioxidant, anti-inflammatory, wound healing, and probiotic properties, leading to its use in treating oral infections. In the first stage of this work, for the first time, using the Design of Experiment (DoE) approach, pomegranate peel extract (70% methanol, temperature 70 °C, and three cycles per 90 min) was optimized and obtained, which showed optimal antioxidant and anti-inflammatory properties. The optimized extract showed antibacterial activity against oral pathogenic bacteria. The second part of this study focused on optimizing an electrospinning process for a combination of polycaprolactone (PCL) and polyvinylpyrrolidone (PVP) nanofibers loaded with the optimized pomegranate peel extract. The characterization of the nanofibers was confirmed by using SEM pictures, XRPD diffractograms, and IR-ATR spectra. The composition of the nanofibers can control the release; in the case of PVP-based nanofibers, immediate release was achieved within 30 min, while in the case of PCL/PVP, controlled release was completed within 24 h. Analysis of the effect of different scaffold compositions of the obtained electrofibers showed that those based on PCL/PVP had better wound healing potential. The proposed strategy to produce electrospun nanofibers with pomegranate peel extract is the first and innovative approach to better use the synergy of biological action of active compounds present in extracts in a patient-friendly pharmaceutical form, beneficial for treating oral infections.
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Affiliation(s)
- Magdalena Paczkowska-Walendowska
- Department of Pharmacognosy and Biomaterials, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland; (M.I.); (J.C.-P.)
| | - Miłosz Ignacyk
- Department of Pharmacognosy and Biomaterials, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland; (M.I.); (J.C.-P.)
| | - Andrzej Miklaszewski
- Faculty of Materials Engineering and Technical Physics, Institute of Materials Science and Engineering, Poznan University of Technology, 60-965 Poznan, Poland;
| | - Tomasz Plech
- Department of Pharmacology, Medical University of Lublin, Radziwillowska 11, 20-080 Lublin, Poland;
| | - Tomasz M. Karpiński
- Department of Medical Microbiology, Medical Faculty, Poznan University of Medical Sciences, Rokietnicka 10, 60-806 Poznan, Poland;
| | - Jakub Kwiatek
- Kwiatek Dental Clinic Sp. z o.o., Kordeckiego 22, 60-144 Poznan, Poland;
| | - Ewelina Swora-Cwynar
- Department of Pharmacology and Phytochemistry, Institute of Natural Fibres and Medicinal Plants—National Research Institute, Wojska Polskiego 71b, 60-630 Poznan, Poland;
| | | | - Judyta Cielecka-Piontek
- Department of Pharmacognosy and Biomaterials, Poznan University of Medical Sciences, Rokietnicka 3, 60-806 Poznan, Poland; (M.I.); (J.C.-P.)
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Zhao X, Feng Y, Ke D, Teng Y, Yuan Z. Comparative transcriptomic and metabolomic profiles reveal fruit peel color variation in two red pomegranate cultivars. PLANT MOLECULAR BIOLOGY 2024; 114:51. [PMID: 38691187 DOI: 10.1007/s11103-024-01446-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 03/23/2024] [Indexed: 05/03/2024]
Abstract
Pomegranate (Punica granatum L.) which belongs to family Lythraceae, is one of the most important fruit crops of many tropical and subtropical regions. A high variability in fruit color is observed among different pomegranate accessions, which arises from the qualitative and quantitative differences in anthocyanins. However, the mechanism of fruit color variation is still not fully elucidated. In the present study, we investigated the red color mutation between a red-skinned pomegranate 'Hongbaoshi' and a purple-red-skinned cultivar 'Moshiliu', by using transcriptomic and metabolomic approaches. A total of 51 anthocyanins were identified from fruit peels, among which 3-glucoside and 3,5-diglucoside of cyanidin (Cy), delphinidin (Dp), and pelargonidin (Pg) were dominant. High proportion of Pg in early stages of 'Hongbaoshi' but high Dp in late stages of 'Moshiliu' were characterized. The unique high levels of Cy and Dp anthocyanins accumulating from early developmental stages accounted for the purple-red phenotype of 'Moshiliu'. Transcriptomic analysis revealed an early down-regulated and late up-regulated of anthocyanin-related structure genes in 'Moshiliu' compared with 'Hongbaoshi'. Alao, ANR was specially expressed in 'Hongbaoshi', with extremely low expression levels in 'Moshiliu'. For transcription factors R2R3-MYB, the profiles demonstrated a much higher transcription levels of three subgroup (SG) 5 MYBs and a sharp decrease in expression of SG6 MYB LOC116202527 in high-anthocyanin 'Moshiliu'. SG4 MYBs exhibited two entirely different patterns, LOC116203744 and LOC116212505 were down-regulated whereas LOC116205515 and LOC116212778 were up-regulated in 'Moshiliu' pomegranate. The results indicate that specific SG members of the MYB family might promote the peel coloration in different manners and play important roles in color mutation in pomegranate.
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Affiliation(s)
- Xueqing Zhao
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China.
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, China.
| | - Yingyi Feng
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
| | - Ding Ke
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
| | - Yingfen Teng
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
| | - Zhaohe Yuan
- Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing, 210037, China
- College of Forestry, Nanjing Forestry University, Nanjing, 210037, China
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Iyengar P, Godoy-Brewer G, Maniyar I, White J, Maas L, Parian AM, Limketkai B. Herbal Medicines for the Treatment of Active Ulcerative Colitis: A Systematic Review and Meta-Analysis. Nutrients 2024; 16:934. [PMID: 38612967 PMCID: PMC11013716 DOI: 10.3390/nu16070934] [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] [Received: 02/12/2024] [Revised: 03/05/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
Herbal medicines are used by patients with IBD despite limited evidence. We present a systematic review and meta-analysis of randomized controlled trials (RCTs) investigating treatment with herbal medicines in active ulcerative colitis (UC). A search query designed by a library informationist was used to identify potential articles for inclusion. Articles were screened and data were extracted by at least two investigators. Outcomes of interest included clinical response, clinical remission, endoscopic response, endoscopic remission, and safety. We identified 28 RCTs for 18 herbs. In pooled analyses, when compared with placebo, clinical response rates were significantly higher for Indigo naturalis (IN) (RR 3.70, 95% CI 1.97-6.95), but not for Curcuma longa (CL) (RR 1.60, 95% CI 0.99-2.58) or Andrographis paniculata (AP) (RR 0.95, 95% CI 0.71-1.26). There was a significantly higher rate of clinical remission for CL (RR 2.58, 95% CI 1.18-5.63), but not for AP (RR 1.31, 95% CI 0.86-2.01). Higher rates of endoscopic response (RR 1.56, 95% CI 1.08-2.26) and remission (RR 19.37, 95% CI 2.71-138.42) were significant for CL. CL has evidence supporting its use as an adjuvant therapy in active UC. Research with larger scale and well-designed RCTs, manufacturing regulations, and education are needed.
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Affiliation(s)
- Preetha Iyengar
- Department of Medicine, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA 90095, USA;
| | | | - Isha Maniyar
- Center for Inflammatory Bowel Diseases, Vatche and Tamar Manoukian Division of Digestive Diseases, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA 90095, USA;
| | - Jacob White
- Welch Library, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA;
| | - Laura Maas
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA;
| | - Alyssa M. Parian
- Division of Gastroenterology and Hepatology, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA;
| | - Berkeley Limketkai
- Center for Inflammatory Bowel Diseases, Vatche and Tamar Manoukian Division of Digestive Diseases, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA 90095, USA;
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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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Bahari H, Pourreza S, Goudarzi K, Mirmohammadali SN, Asbaghi O, Kolbadi KSH, Naderian M, Hosseini A. The effects of pomegranate consumption on obesity indices in adults: A systematic review and meta-analysis. Food Sci Nutr 2024; 12:641-660. [PMID: 38370057 PMCID: PMC10867489 DOI: 10.1002/fsn3.3739] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/14/2023] [Accepted: 09/20/2023] [Indexed: 02/20/2024] Open
Abstract
Evidence supports the potential application of polyphenols as agents against obesity. Pomegranate is one of the fruits that possess a high content of polyphenols. This systematic review and meta-analysis of randomized controlled trials (RCTs) sought to evaluate the effects of pomegranate consumption on obesity indices, including body mass index (BMI), body weight, waist circumference (WC), fat mass (FM), body fat percentage (BFP), and fat-free mass (FFM) in adults. Relevant RCTs were obtained by searching databases, including PubMed, SCOPUS, and Web of Science, up to May 2023. Heterogeneity tests of the included trials were performed using the I 2 statistic. Random effects models were assessed based on the heterogeneity tests, and pooled data were determined as the weighted mean difference with a 95% confidence interval. Pooled analysis of 28 trials revealed that pomegranate consumption led to a significant reduction in body weight (WMD: -1.97, 95% CI: -2.91, -1.03, p < .05), and a significant decrease in BMI (WMD: -0.48, 95% CI: -0.76, -0.20, p < .05) in comparison with the control group. However, there were no significant effects on WC, FM, FFM, and BFP in comparison with the control group. Pomegranate consumption may yield a beneficial effect on body weight and BMI in adults. However, there were no significant effects on WC, FM, FFM, and BFP, by pomegranate consumption. Also, pomegranate consumption can reduce body weight, BMI, WC, and BFP in obese adults. Long-term trials with different doses of pomegranate are needed.
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Affiliation(s)
- Hossein Bahari
- Department of Nutrition, Faculty of MedicineMashhad University of Medical SciencesMashhadIran
- Student Research CommitteeMashhad University of Medical SciencesMashhadIran
| | - Sanaz Pourreza
- Department of Community Nutrition, School of Nutritional Sciences and DieteticsTehran University of Medical SciencesTehranIran
| | - Kian Goudarzi
- Faculty of MedicineShahid Beheshti University of Medical ScienceTehranIran
| | | | - Omid Asbaghi
- Cancer Research CenterShahid Beheshti University of Medical SciencesTehranIran
- Student Research CommitteeShahid Beheshti University of Medical SciencesTehranIran
| | | | - Moslem Naderian
- Department of Pharmacognosy, School of PharmacyShiraz University of Medical SciencesShirazIran
- Medicinal Plants Research CenterYasuj University of Medical SciencesYasujIran
| | - Ali Hosseini
- Department of Pharmacognosy, School of PharmacyShiraz University of Medical SciencesShirazIran
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Gull H, Ikram A, Khalil AA, Ahmed Z, Nemat A. Assessing the multitargeted antidiabetic potential of three pomegranate peel-specific metabolites: An in silico and pharmacokinetics study. Food Sci Nutr 2023; 11:7188-7205. [PMID: 37970376 PMCID: PMC10630828 DOI: 10.1002/fsn3.3644] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/09/2023] [Accepted: 08/13/2023] [Indexed: 11/17/2023] Open
Abstract
Diabetes is a chronic metabolic disorder that occurs due to impaired secretion of insulin, insulin resistance, or both. Recent studies show that the antidiabetic drugs used to control hyperglycemic levels are associated with undesirable adverse effects. Therefore, developing a safe and effective medicine with antidiabetic potential is needed. In this context, in silico studies are considered a rapid, effectual, and cost-effective method in drug discovery procedures. It is evident from the literature that plant-based natural components have shown promising outcomes in drug development to alleviate various diseases and hence have diversified the screening of potential antidiabetic agents. Purposely, in the present study, an in silico approach was performed on three Punica granatum peel metabolites (punicalin, punicalagin, and ellagic acid). All these three compounds were docked against nine protein targets involved in glucose metabolism (GFAT, PTP1β, PPAR-ᵞ, TKIR, RBP4, α-amylase, α-glucosidase, GCK, and AQP-2). These three pomegranate-specific compounds demonstrated significant interactions with GFAT, PTP1β, PPAR-ᵞ, TKIR, RBP4, α-amylase, α-glucosidase, GCK, and AQP-2 protein targets. Specifically, punicalin, punicalagin, and ellagic acid revealed significant binding scores (-9.2, -9.3, -8.1, -9.1, -8.5, -11.3, -9.2, -9.5, -10.1 kcal/mol; -10, -9.9, -8.5, -8.9, -10.4, -9.0, -10.2, -9.4, -9.0 kcal/mol; and -8.1, -8.0, -8.0, -6.8, -8.7, -7.8, -8.3, -8.1, -8.1 kcal/mol, respectively), with nine protein targets mentioned above. Hence, punicalin, punicalagin, and ellagic acid can be promising candidates in drug discovery to manage diabetes. Furthermore, in vivo and clinical trials must be conducted to validate the outcomes of the current study.
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Affiliation(s)
- Hina Gull
- Faculty of Sciences, Institute of Molecular Biology and BiotechnologyThe University of LahoreLahorePakistan
| | - Aqsa Ikram
- Faculty of Sciences, Institute of Molecular Biology and BiotechnologyThe University of LahoreLahorePakistan
| | - Anees Ahmed Khalil
- Faculty of Allied Health Sciences, University Institute of Diet and Nutritional SciencesThe University of LahoreLahorePakistan
| | - Zahoor Ahmed
- School of Food and Biological EngineeringJiangsu UniversityZhenjiangChina
| | - Arash Nemat
- Department of MicrobiologyKabul University of Medical SciencesKabulAfghanistan
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Grillo G, Capaldi G, Radošević K, Jakopović Ž, Markov K, Brncic M, Gallina L, Calcio Gaudino E, Cravotto G. Unlocking the Bioactive Potential of Pomegranate Peels: A Green Extraction Approach. Antioxidants (Basel) 2023; 12:1796. [PMID: 37891876 PMCID: PMC10604353 DOI: 10.3390/antiox12101796] [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: 07/22/2023] [Revised: 09/16/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
Pomegranate (Punica granatum L.) is well known for its high content of bioactives, including polyphenols, flavonoids, and tannins, which have been shown to exhibit a wide range of biological activities, such as antioxidant, antimicrobial, and anticancer effects. It is worth noting that the majority of these molecules are found in the peels, which are usually disposed of after processing, causing a significant amount of waste, amounting to more than 3.6 million t/y. This work investigates microwave-assisted extraction (MAE) in water for the recovery of antioxidants from pomegranate peels (PP), including the optimisation of temperature and extraction times. The total phenolic, anthocyanin, flavonoid, and tannin contents of the recovered extracts were determined, as well as their antioxidant activities, which were found to be 356.35 mgGAE/gExtr, 303.97 µgCy3G/gExtr, 37.28 mgQE/gExtr, 56.48 mgGAE/gExtr, and 5.72 mmolTE/gExtr, respectively (according to the adopted reference). All results were compared with those obtained using a conventional protocol. In addition, the potential for water recycling by means of downstream nanofiltration in optimised MAE was investigated, leading to overall water reuse of approx. 75%. Power consumption (20.92 W/mgGAE) and common green metrics, Reaction Mass Efficiency (RME), E-Factor, and the Process Mass Intensiti/efficiency (PMI, PME), were considered in evaluating the proposed PP valorisation strategy. Finally, the biological activities of the main products were assessed. The antimicrobial properties of the PP extracts against three Gram-positive and three Gram-negative bacteria and their antiproliferative activity towards human cancer cells were tested. S. aureus bacteria was the most susceptible to the PP extracts. All tested products displayed antiproliferative activity against HeLa cells when higher concentrations were tested, with D-PP/NF (obtained from dried PP and sequential nanofiltration) being the most effective. This result was also confirmed via clonogenic analysis, which generally indicated the possible anti-cancer activity of pomegranate peel extracts obtained using this green approach.
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Affiliation(s)
- Giorgio Grillo
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10235 Turin, Italy; (G.G.); (G.C.); (L.G.); (E.C.G.)
| | - Giorgio Capaldi
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10235 Turin, Italy; (G.G.); (G.C.); (L.G.); (E.C.G.)
| | - Kristina Radošević
- Laboratory for Cell Cultures, Applications and Biotransformations, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottojeva Ulica 6, 10000 Zagreb, Croatia;
| | - Željko Jakopović
- Laboratory for General Microbiology and Food Microbiology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottojeva Ulica 6, 10000 Zagreb, Croatia; (Ž.J.); (K.M.)
| | - Ksenija Markov
- Laboratory for General Microbiology and Food Microbiology, Department of Biochemical Engineering, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottojeva Ulica 6, 10000 Zagreb, Croatia; (Ž.J.); (K.M.)
| | - Mladen Brncic
- Department of Food Engineering, University of Zagreb, Pierottijeva 6, 10000 Zagreb, Croatia;
| | - Lorenzo Gallina
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10235 Turin, Italy; (G.G.); (G.C.); (L.G.); (E.C.G.)
| | - Emanuela Calcio Gaudino
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10235 Turin, Italy; (G.G.); (G.C.); (L.G.); (E.C.G.)
| | - Giancarlo Cravotto
- Department of Drug Science and Technology, University of Turin, Via P. Giuria 9, 10235 Turin, Italy; (G.G.); (G.C.); (L.G.); (E.C.G.)
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Yin Y, Martínez R, Zhang W, Estévez M. Crosstalk between dietary pomegranate and gut microbiota: evidence of health benefits. Crit Rev Food Sci Nutr 2023:1-27. [PMID: 37335106 DOI: 10.1080/10408398.2023.2219763] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Gut microbiota (GM) is an invisible organ that plays an important role in human health. Increasing evidence suggests that polyphenols in pomegranate (punicalagin, PU) could serve as prebiotics to modulate the composition and function of GM. In turn, GM transform PU into bioactive metabolites such as ellagic acid (EA) and urolithin (Uro). In this review, the interplay between pomegranate and GM is thoroughly described by unveiling a dialog in which both actors seem to affect each other's roles. In a first dialog, the influence of bioactive compounds from pomegranate on GM is described. The second act shows how the GM biotransform pomegranate phenolics into Uro. Finally, the health benefits of Uro and that related molecular mechanism are summarized and discussed. Intake of pomegranate promotes beneficial bacteria in GM (e.g. Lactobacillus spp., Bifidobacterium spp.) while reducing the growth of harmful bacteria (e.g. Bacteroides fragilis group, Clostridia). Akkermansia muciniphila, and Gordonibacter spp., among others, biotransform PU and EA into Uro. Uro contributes to strengthening intestinal barrier and reducing inflammatory processes. Yet, Uro production varies greatly among individuals and depend on GM composition. Uro-producing bacteria and precise metabolic pathways need to be further elucidated therefore contributing to personalized and precision nutrition.
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Affiliation(s)
- Yantao Yin
- Key Laboratory of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
- TECAL Research Group, IPROCAR Research Institute, Universidad de Extremadura, Caceres, Spain
| | - Remigio Martínez
- TECAL Research Group, IPROCAR Research Institute, Universidad de Extremadura, Caceres, Spain
- Infectious Diseases Unit. Animal Health Department, University of Extremadura, Caceres, Spain
- Departamento de Sanidad Animal, Grupo de Investigación en Sanidad Animal y Zoonosis (GISAZ), UIC Zoonosis y Enfermedades Emergentes ENZOEM, University of Córdoba, Córdoba, Spain
| | - Wangang Zhang
- Key Laboratory of Meat Processing and Quality Control, College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Mario Estévez
- TECAL Research Group, IPROCAR Research Institute, Universidad de Extremadura, Caceres, Spain
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Niewiadomska J, Kasztura M, Janus I, Chełmecka E, Stygar DM, Frydrychowski P, Wojdyło A, Noszczyk-Nowak A. Punica granatum L. Extract Shows Cardioprotective Effects Measured by Oxidative Stress Markers and Biomarkers of Heart Failure in an Animal Model of Metabolic Syndrome. Antioxidants (Basel) 2023; 12:1152. [PMID: 37371882 DOI: 10.3390/antiox12061152] [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: 04/25/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/29/2023] Open
Abstract
Metabolic syndrome (MetS) significantly increases the risk of cardiovascular diseases (CVD), a leading cause of death globally. The presented study investigated the cardioprotective role of dietary polyphenols found in pomegranate peels in an animal model of metabolic syndrome. Zucker diabetic fatty rats (ZDF, MetS rats, fa/fa) were supplemented with polyphenol-rich pomegranate peel extract (EPP) at two dosages: 100 mg/kg BW and 200 mg/kg BW. The extract was administered for 8 weeks. The effect of ethanolic peel extract on the concentration of oxidative stress markers (CAT, SOD, MnSOD, GR, GST, GPx, TOS, SH, and MDA), biomarkers of heart failure (cTnI, GAL-3), and alternations in tissue architecture was assessed. The results showed a significant increase in SH concentration mediated via EPP supplementation (p < 0.001). Treatment with a 100 mg/kg BW dosage reduced the TOS level more efficiently than the higher dose. Interestingly, the CAT and GST activities were relevantly higher in the MetS 100 group (p < 0.001) compared to the MetS control. The rats administered EPP at a dose of 200 mg/kg BW did not follow a similar trend. No differences in the GR (p = 0.063), SOD (p = 0.455), MnSOD (p = 0.155), and MDA (p = 0.790) concentration were observed after exposure to the pomegranate peel extract. The administration of EPP did not influence the cTnI and GAL-3 levels. Histology analysis of the heart and aorta sections revealed no toxic changes in phenolic-treated rats. The findings of this study prove that the extract from pomegranate peels possesses free radical scavenging properties in the myocardium. The effect on alleviating ventricular remodeling and cardiomyocyte necrosis was not confirmed and requires further investigation.
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Affiliation(s)
- Joanna Niewiadomska
- Department of Internal and Diseases with Clinic for Horses, Dogs, and Cats, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Monika Kasztura
- Department of Food Hygiene and Consumer Health Protection, Wroclaw University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Izabela Janus
- Department of Pathology, Division of Pathomorphology and Veterinary Forensics, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, C. K. Norwida 31, 50-375 Wrocław, Poland
| | - Elżbieta Chełmecka
- Department of Statistics, Department of Instrumental Analysis, Faculty of Pharmaceutical Sciences in Sosnowiec Medical University of Silesia, 40-751 Katowice, Poland
| | - Dominika Marta Stygar
- Department of Physiology, Faculty of Medical Sciences in Zabrze, Medical University of Silesia, 40-751 Katowice, Poland
| | - Piotr Frydrychowski
- Department of Internal and Diseases with Clinic for Horses, Dogs, and Cats, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wrocław, Poland
| | - Aneta Wojdyło
- Department of Fruit, Vegetable and Nutraceutical Plant Technology, Wrocław University of Environmental and Life Sciences, 51-630 Wrocław, Poland
| | - Agnieszka Noszczyk-Nowak
- Department of Internal and Diseases with Clinic for Horses, Dogs, and Cats, Faculty of Veterinary Medicine, Wroclaw University of Environmental and Life Sciences, 50-375 Wrocław, Poland
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Elbakry MMM, ElBakary NM, Hagag SA, Hemida EHA. Pomegranate Peel Extract Sensitizes Hepatocellular Carcinoma Cells to Ionizing Radiation, Induces Apoptosis and Inhibits MAPK, JAK/STAT3, β-Catenin/NOTCH, and SOCS3 Signaling. Integr Cancer Ther 2023; 22:15347354221151021. [PMID: 36710483 PMCID: PMC9893067 DOI: 10.1177/15347354221151021] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Tumor resistance is typically blamed for the failure of radiotherapy and chemotherapy to treat cancer in clinic patients. To improve the cytotoxicity of tumor cells using radiation in conjunction with specific tumor-selective cytotoxic drugs is crucial. Pomegranate has received overwhelmingly positive feedback as a highly nutritious food for enhancing health and treating a variety of ailments. In the present study, we aimed to examine the effects as well as mechanism of action of pomegranate peel extract (PPE) and/or γ-radiation (6-Gy) on hepatocellular carcinoma (HCC) cell lines HepG2. The findings of this study showed that PPE treatment of HepG2 cells considerably slowed the proliferation of cancer cells, and its combination with γ-irradiation potentiated this action. As a key player in tumor proliferation, and inflammatory cascade induction, the down-regulation of STAT3 following treatment of irradiated and non-irradiated HepG2 cells with PPE as recorded in the present work resulted in reduction of tumor growth, via modulating inflammatory response manifested by (down-regulation of TLR4 expression and NFKB level), suppressing survival markers expressed by reduction of JAK, NOTCH1, β-catenin, SOCS3, and enhancing apoptosis (induction of tumor PPAR-γ and caspase-3) followed by changes in redox tone (expressed by increase in Nrf-2, SOD and catalase activities, and decrease in MDA concentration). In conclusion, PPE might possess a considerable therapeutic potential against HCC in addition to its capability to enhance response of HepG2 cells to gamma radiation.
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Affiliation(s)
| | - Nermeen M. ElBakary
- Egyptian Atomic Energy Authority, Cairo, Egypt,Nermeen M. ElBakary, Radiation Biology Department, National Centre for Radiation Research and Technology, Egyptian Atomic-Energy Authority, 3 Ahmed Elzomoor St., Elzohoor Dist., Nasr City, P.O. Box 8029, Cairo 11765, Egypt.
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12
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Gas-Mediated Intestinal Microbiome Regulation Prompts the Methanol Extract of Schizonepetae Spica to Relieve Colitis. Nutrients 2023; 15:nu15030519. [PMID: 36771228 PMCID: PMC9921049 DOI: 10.3390/nu15030519] [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: 11/21/2022] [Revised: 01/13/2023] [Accepted: 01/17/2023] [Indexed: 01/21/2023] Open
Abstract
Intestinal dysbiosis plays an important role in the pathogenesis of colitis (UC). Schizonepetae Herba can achieve anti-inflammatory effects as a medicine and food homologous vegetable. Luteolin, eriodictyol, fisetin, and kaempferol are the main anti-inflammatory active compounds obtained through mass spectrometry from the methanol extract of Schizonepetae Spica (JJSM). JJSM intervention resulted in attenuated weight loss, high disease-activity-index score, colon length shortening and colonic pathological damage in DSS-induced colitis mice. Interestingly, hydrogen sulfide (H2S) was inhibited remarkably, which is helpful to elucidate the relationship between active substance and intestinal flora. Furthermore, JJSM administration improved intestinal flora with down-regulating the abundance of harmful bacteria such as Clostridiales and Desulfovibrio and up-regulating the abundance of beneficial bacteria such as Muribaculaceae and Ligolactobacillus and enhanced the production of SCFAs. It is worth noticing that Desulfovibrio is related to the production of intestinal gas H2S. The elevated levels of Desulfovibrio and H2S will hasten the onset of colitis, which is a crucial risk factor for colitis. The results displayed that JJSM could considerably ameliorate colitis by rebuilding H2S-related intestinal flora, which provides a new therapeutic strategy for Schizonepetae Spica to be utilized as a functional food and considered as an emerging candidate for intestinal inflammation.
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Angeloni C, Malaguti M, Prata C, Freschi M, Barbalace MC, Hrelia S. Mechanisms Underlying Neurodegenerative Disorders and Potential Neuroprotective Activity of Agrifood By-Products. Antioxidants (Basel) 2022; 12:antiox12010094. [PMID: 36670956 PMCID: PMC9854890 DOI: 10.3390/antiox12010094] [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: 11/30/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 01/03/2023] Open
Abstract
Neurodegenerative diseases, characterized by progressive loss in selected areas of the nervous system, are becoming increasingly prevalent worldwide due to an aging population. Despite their diverse clinical manifestations, neurodegenerative diseases are multifactorial disorders with standard features and mechanisms such as abnormal protein aggregation, mitochondrial dysfunction, oxidative stress and inflammation. As there are no effective treatments to counteract neurodegenerative diseases, increasing interest has been directed to the potential neuroprotective activities of plant-derived compounds found abundantly in food and in agrifood by-products. Food waste has an extremely negative impact on the environment, and recycling is needed to promote their disposal and overcome this problem. Many studies have been carried out to develop green and effective strategies to extract bioactive compounds from food by-products, such as peel, leaves, seeds, bran, kernel, pomace, and oil cake, and to investigate their biological activity. In this review, we focused on the potential neuroprotective activity of agrifood wastes obtained by common products widely produced and consumed in Italy, such as grapes, coffee, tomatoes, olives, chestnuts, onions, apples, and pomegranates.
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Affiliation(s)
- Cristina Angeloni
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| | - Marco Malaguti
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
- Correspondence: (M.M.); (C.P.)
| | - Cecilia Prata
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum–University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
- Correspondence: (M.M.); (C.P.)
| | - Michela Freschi
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| | - Maria Cristina Barbalace
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
| | - Silvana Hrelia
- Department for Life Quality Studies, Alma Mater Studiorum–University of Bologna, Corso D’Augusto 237, 47921 Rimini, Italy
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14
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Parisi V, Santoro V, Donadio G, Bellone ML, Diretto G, Sandri C, Mensitieri F, De Tommasi N, Dal Piaz F, Braca A. Comparative Chemical Analysis of Eight Punica granatum L. Peel Cultivars and Their Antioxidant and Anti-Inflammatory Activities. Antioxidants (Basel) 2022; 11:2262. [PMID: 36421448 PMCID: PMC9687128 DOI: 10.3390/antiox11112262] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/07/2022] [Accepted: 11/11/2022] [Indexed: 10/09/2023] Open
Abstract
A comparative quali-quantitative study of the peel extracts of eight Punica granatum cultivars obtained from underexploited areas of South Italy was carried out in order to valorize them as health-promoting by-products. The results showed that all of the samples possessed 45 ellagitannins, consisting mainly of polyhydroxyphenoyls; 10 flavonoids, belonging to flavonol, flavone, and catechin classes; and 2 anthocyanins. The most representative compounds underwent quantification through a LC-MS/MS multiple reaction monitoring (MRM)-based method; their qualitative profile was almost superimposable, while variability in the quantitative phenolic content was observed. The antioxidant activity was investigated using cell-free and cell-based assays. The in vitro anti-inflammatory potential was also studied by monitoring three typical markers of inflammation (IL-1β, IL-6, and TNF-α). Moderate differences in both activities were observed between the cultivars. Results showed that all of the investigated peels have a potential use as healthy bioactive phytocomplexes due to the interesting antioxidant and anti-inflammatory activities; in particular from the bioinformatic approaches a series of compounds, including galloyl-, pedunculagin- and ellagic acid-based, were found to be highly correlated with bioactivity of the extracts. Finally, the bioactivities showed by a Campanian local cultivar, 'Granato di Aiello del Sabato', could promote its cultivation by local farmers and germplasm conservation.
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Affiliation(s)
- Valentina Parisi
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy
- PhD Program in Drug Discovery and Development, Department of Pharmacy, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Valentina Santoro
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy
| | - Giuliana Donadio
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy
| | - Maria Laura Bellone
- Department of Pharmacy, University of Salerno, 84084 Fisciano, SA, Italy
- PhD Program in Drug Discovery and Development, Department of Pharmacy, Università degli Studi di Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | - Gianfranco Diretto
- Casaccia Research Centre, Biotechnology Laboratory, Italian National Agency for New Technologies, Energy and Sustainable Development (ENEA), 00123 Rome, Italy
| | - Carla Sandri
- Casaccia Research Centre, Biotechnology Laboratory, Italian National Agency for New Technologies, Energy and Sustainable Development (ENEA), 00123 Rome, Italy
| | - Francesca Mensitieri
- Dipartimento di Medicina, Chirurgia e Odontoiatria “Scuola Medica Salernitana”, Università degli Studi di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
| | | | - Fabrizio Dal Piaz
- Dipartimento di Medicina, Chirurgia e Odontoiatria “Scuola Medica Salernitana”, Università degli Studi di Salerno, via Giovanni Paolo II 132, 84084 Fisciano, SA, Italy
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15
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Punicalagin Protects against the Development of Methotrexate-Induced Hepatotoxicity in Mice via Activating Nrf2 Signaling and Decreasing Oxidative Stress, Inflammation, and Cell Death. Int J Mol Sci 2022; 23:ijms232012334. [PMID: 36293191 PMCID: PMC9604463 DOI: 10.3390/ijms232012334] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 11/06/2022] Open
Abstract
Despite its effectiveness in treating inflammatory diseases and various malignancies, methotrexate (MTX) is well known to cause hepatotoxicity, which involves increased oxidative stress and inflammation, limiting its clinical use. Herein, we looked into the effect of punicalagin (PU), a polyphenolic molecule having a variety of health-promoting attributes, on MTX-induced hepatotoxicity in mice. PU (25 and 50 mg/kg/day) was given orally to the mice for 10 days, while a single dose of MTX (20 mg/kg) was injected intraperitoneally (i.p.) at day 7. The MTX-induced liver damage was demonstrated by remarkably higher transaminases (ALT and AST), ALP, and LDH, as well as significant histological alterations in hepatic tissues. MTX-injected mice also demonstrated increases in hepatic oxidative stress markers, including malondialdehyde (MDA) and nitric oxide (NO), with a concordant drop in glutathione (GSH) content and superoxide dismutase (SOD) and catalase (CAT) activities. PU significantly attenuated the MTX-induced serum transaminases, ALP and LDH elevations, and hepatic oxidative stress measures and boosted antioxidant defenses in the liver. Moreover, the liver of MTX-treated mice showed increases in NF-κB p65 expression, pro-inflammatory cytokine (IL-6 and TNF-α) levels, and pro-apoptotic protein (caspase-3 and Bax) expression, whereas Bcl-2 and Nrf2 expressions were reduced, which were all attenuated by PU treatment. Collectively, PU inhibits oxidative damage, inflammation, and apoptosis and upregulates Nrf2 in the liver of MTX-induced mice. Thus, these findings suggest that PU may have great therapeutic potential for the prevention of MTX-induced hepatotoxicity, pending further exploration in upcoming studies.
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Hussain H, Mamadalieva NZ, Hussain A, Hassan U, Rabnawaz A, Ahmed I, Green IR. Fruit Peels: Food Waste as a Valuable Source of Bioactive Natural Products for Drug Discovery. Curr Issues Mol Biol 2022; 44:1960-1994. [PMID: 35678663 PMCID: PMC9164088 DOI: 10.3390/cimb44050134] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/27/2022] [Accepted: 04/27/2022] [Indexed: 12/31/2022] Open
Abstract
Fruits along with vegetables are crucial for a balanced diet. These not only have delicious flavors but are also reported to decrease the risk of contracting various chronic diseases. Fruit by-products are produced in huge quantity during industrial processing and constitute a serious issue because they may pose a harmful risk to the environment. The proposal of employing fruit by-products, particularly fruit peels, has gradually attained popularity because scientists found that in many instances peels displayed better biological and pharmacological applications than other sections of the fruit. The aim of this review is to highlight the importance of fruit peel extracts and natural products obtained in food industries along with their other potential biological applications.
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Affiliation(s)
- Hidayat Hussain
- Department of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry, Weinberg 3, D-06120 Halle (Saale), Germany
- Correspondence: or (H.H.); (A.H.)
| | - Nilufar Z. Mamadalieva
- Institute of the Chemistry of Plant Substances of the Academy Sciences of Uzbekistan, Tashkent 100170, Uzbekistan;
| | - Amjad Hussain
- Department of Chemistry, University of Okara, Okara 56130, Pakistan;
- Correspondence: or (H.H.); (A.H.)
| | - Uzma Hassan
- Institute of Chemical Sciences, University of Peshawar, Peshawar 25120, Pakistan;
| | - Aisha Rabnawaz
- Department of Chemistry, University of Okara, Okara 56130, Pakistan;
| | - Ishtiaq Ahmed
- Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge CB3 0AS, UK;
| | - Ivan R. Green
- Department of Chemistry and Polymer Science, University of Stellenbosch, Private Bag X1, Matieland, Stellenbosch 7600, South Africa;
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