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Loureiro L, Morais J, Silva R, Martins JT, Geada P, Vasconcelos V, Vicente AA. Isolation and Identification of Lichen Photobionts Collected from Different Environments in North of Portugal and Evaluation of Bioactivities of Their Extracts. Foods 2024; 13:1759. [PMID: 38890987 PMCID: PMC11172358 DOI: 10.3390/foods13111759] [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: 05/09/2024] [Revised: 05/24/2024] [Accepted: 05/30/2024] [Indexed: 06/20/2024] Open
Abstract
Lichens are organisms constituted by a symbiotic relationship between a fungus (mycobiont) and a photoautotrophic partner (photobiont). Lichens produce several bioactive compounds; however, the biotechnological exploitation of this organism is hampered by its slow growth. To start studying the possibility of exploiting lichens as alternative sources of bioactive compounds, eighteen lichens were collected in the north of Portugal in order to isolate and study the bioactivity of their photobionts. It was possible to isolate and cultivate only eight photobionts. Three of them, LFR1, LFA2 and LCF3, belong to the Coelastrella genus, the other two (LFA1 and LCF1) belong to the Chlorella genus and for the remaining three photobionts, LFS1, LCA1 and LCR1, it was impossible to isolate their microalgae. These only grow in consortium with bacteria and/or cyanobacteria. All extracts showed antioxidant activity, mainly at a concentration of 10 mg.mL-1. LFS1, a consortium extract, showed the highest antioxidant power, as well as the highest concentration of phenolic compounds (5.16 ± 0.53 mg of gallic acid equivalents (GAE).g-1). The extracts under study did not show significant antibacterial activity against Escherichia coli, Listeria or Salmonella. The Coelastrella sp. and LFA1 extracts showed the highest hyaluronidase inhibition. The LFR1 extract at a concentration of 5 mg.mL-1 showed the highest anti-inflammatory activity (79.77 ± 7.66%). The extracts of Coelastrella sp. and LFA1 also showed greater antidiabetic activity, demonstrating the high inhibitory power of α-amylase and α-glucosidase. LFR1 at a concentration of 5 mg.mL-1, due to its selective cytotoxicity inhibiting the growth of cancer cells (Caco-2 cells), is a promising anticancer agent.
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Affiliation(s)
- Luís Loureiro
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
| | - João Morais
- CIIMAR/CIMAR—Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (J.M.); (R.S.); (V.V.)
| | - Raquel Silva
- CIIMAR/CIMAR—Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (J.M.); (R.S.); (V.V.)
| | - Joana T. Martins
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
| | - Pedro Geada
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
| | - Vítor Vasconcelos
- CIIMAR/CIMAR—Interdisciplinary Centre of Marine and Environmental Research and Department of Biology, Faculty of Sciences, University of Porto, 4169-007 Porto, Portugal; (J.M.); (R.S.); (V.V.)
| | - António A. Vicente
- CEB—Centre of Biological Engineering, University of Minho, 4750 Braga, Portugal; (J.T.M.); (P.G.); (A.A.V.)
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Harahap U, Syahputra RA, Ahmed A, Nasution A, Wisely W, Sirait ML, Dalimunthe A, Zainalabidin S, Taslim NA, Nurkolis F, Kim B. Current insights and future perspectives of flavonoids: A promising antihypertensive approach. Phytother Res 2024; 38:3146-3168. [PMID: 38616386 DOI: 10.1002/ptr.8199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 02/27/2024] [Accepted: 03/18/2024] [Indexed: 04/16/2024]
Abstract
Hypertension, or high blood pressure (BP), is a complex disease influenced by various risk factors. It is characterized by persistent elevation of BP levels, typically exceeding 140/90 mmHg. Endothelial dysfunction and reduced nitric oxide (NO) bioavailability play crucial roles in hypertension development. L-NG-nitro arginine methyl ester (L-NAME), an analog of L-arginine, inhibits endothelial NO synthase (eNOS) enzymes, leading to decreased NO production and increased BP. Animal models exposed to L-NAME manifest hypertension, making it a useful design for studying the hypertension condition. Natural products have gained interest as alternative approaches for managing hypertension. Flavonoids, abundant in fruits, vegetables, and other plant sources, have potential cardiovascular benefits, including antihypertensive effects. Flavonoids have been extensively studied in cell cultures, animal models, and, to lesser extent, in human trials to evaluate their effectiveness against L-NAME-induced hypertension. This comprehensive review summarizes the antihypertensive activity of specific flavonoids, including quercetin, luteolin, rutin, troxerutin, apigenin, and chrysin, in L-NAME-induced hypertension models. Flavonoids possess antioxidant properties that mitigate oxidative stress, a major contributor to endothelial dysfunction and hypertension. They enhance endothelial function by promoting NO bioavailability, vasodilation, and the preservation of vascular homeostasis. Flavonoids also modulate vasoactive factors involved in BP regulation, such as angiotensin-converting enzyme (ACE) and endothelin-1. Moreover, they exhibit anti-inflammatory effects, attenuating inflammation-mediated hypertension. This review provides compelling evidence for the antihypertensive potential of flavonoids against L-NAME-induced hypertension. Their multifaceted mechanisms of action suggest their ability to target multiple pathways involved in hypertension development. Nonetheless, the reviewed studies contribute to the evidence supporting the useful of flavonoids for hypertension prevention and treatment. In conclusion, flavonoids represent a promising class of natural compounds for combating hypertension. This comprehensive review serves as a valuable resource summarizing the current knowledge on the antihypertensive effects of specific flavonoids, facilitating further investigation and guiding the development of novel therapeutic strategies for hypertension management.
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Affiliation(s)
- Urip Harahap
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Rony Abdi Syahputra
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Amer Ahmed
- Department of Bioscience, Biotechnology and Environment, University of Bari, Bari, Italy
| | - Azhari Nasution
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Wenny Wisely
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Maureen Lazurit Sirait
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Aminah Dalimunthe
- Department of Pharmacology, Faculty of Pharmacy, Universitas Sumatera Utara, Medan, Indonesia
| | - Satirah Zainalabidin
- Biomedical Science, Centre of Toxicology and Health Risk Study, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia
| | - Nurpudji Astuti Taslim
- Division of Clinical Nutrition, Department of Nutrition, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Fahrul Nurkolis
- Department of Biological Sciences, State Islamic University of Sunan Kalijaga (UIN Sunan Kalijaga), Yogyakarta, Indonesia
| | - Bonglee Kim
- Department of Pathology, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
- Korean Medicine-Based Drug Repositioning Cancer Research Center, College of Korean Medicine, Kyung Hee University, Seoul, Republic of Korea
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Makhlof MEM, El-Sheekh MM, El-Sayed AIM. In vitro antibiofilm, antibacterial, antioxidant, and antitumor activities of the brown alga Padina pavonica biomass extract. INTERNATIONAL JOURNAL OF ENVIRONMENTAL HEALTH RESEARCH 2024; 34:1861-1878. [PMID: 36617396 DOI: 10.1080/09603123.2023.2165045] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
The antibiofilm, antibacterial, antioxidant, and anticancer activities of the methanolic extract of Padina pavonica L. were determined. Results deduced that the algal extract had a high biofilm formation inhibitory action done via crystal violet (CV) assay, to 88-99%. The results showed a strong antibacterial against the identified bacteria species. Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa, Klebsiella pneumonia, Bacillus subtilis, and the extract had moderate antibacterial activity against Escherichia coli, Pseudomonas fluorescens and Streptococcus agalactiae. The algal extract has a concentration-dependent DPPH radical scavenging activity (84.59%, with IC50 = 170.31 µg/ml). The inhibitory percent of P. pavonica methanolic extract in vitro antiproliferative activity was 1.79-98.25% with IC50 = 15.14 µg/ml against lung carcinoma. Phenols, terpenes, amino acids, alkaloids, flavones, alcohols, and fatty acids were among the metabolites whose biological actions were evaluated. In conclusion, for the first time, P. pavonica methanolic extract exhibited effective antibiofilm, antibacterial, antioxidant, and anticancer activities. .
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Affiliation(s)
- Mofida E M Makhlof
- Botany and Microbiology Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | | | - Abeer I M El-Sayed
- Botany and Microbiology Department, Faculty of Science, Damanhour University, Damanhour, Egypt
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Baghel RS, Choudhary B, Pandey S, Pathak PK, Patel MK, Mishra A. Rehashing Our Insight of Seaweeds as a Potential Source of Foods, Nutraceuticals, and Pharmaceuticals. Foods 2023; 12:3642. [PMID: 37835294 PMCID: PMC10573080 DOI: 10.3390/foods12193642] [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: 09/01/2023] [Revised: 09/24/2023] [Accepted: 09/26/2023] [Indexed: 10/15/2023] Open
Abstract
In a few Southeast Asian nations, seaweeds have been a staple of the cuisine since prehistoric times. Seaweeds are currently becoming more and more popular around the world due to their superior nutritional value and medicinal properties. This is because of rising seaweed production on a global scale and substantial research on their composition and bioactivities over the past 20 years. By reviewing several articles in the literature, this review aimed to provide comprehensive information about the primary and secondary metabolites and various classes of bioactive compounds, such as polysaccharides, polyphenols, proteins, and essential fatty acids, along with their bioactivities, in a single article. This review also highlights the potential of seaweeds in the development of nutraceuticals, with a particular focus on their ability to enhance human health and overall well-being. In addition, we discuss the challenges and potential opportunities associated with the advancement of pharmaceuticals and nutraceuticals derived from seaweeds, as well as their incorporation into different industrial sectors. Furthermore, we find that many bioactive constituents found in seaweeds have demonstrated potential in terms of different therapeutic attributes, including antioxidative, anti-inflammatory, anticancer, and other properties. In conclusion, seaweed-based bioactive compounds have a huge potential to play an important role in the food, nutraceutical, and pharmaceutical sectors. However, future research should pay more attention to developing efficient techniques for the extraction and purification of compounds as well as their toxicity analysis, clinical efficacy, mode of action, and interactions with regular diets.
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Affiliation(s)
- Ravi S. Baghel
- Biological Oceanography Division, CSIR-National Institute of Oceanography, Panaji 403004, Goa, India;
| | - Babita Choudhary
- Division of Applied Phycology and Biotechnology, CSIR, Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
| | - Sonika Pandey
- Department of Fruit Tree Sciences, Institute of Plant Sciences, Agricultural Research Organization, Volcani Center, Rishon LeZion 7528809, Israel;
| | - Pradeep Kumar Pathak
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization (ARO), Volcani Center, Rishon LeZion 7505101, Israel;
| | - Manish Kumar Patel
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization (ARO), Volcani Center, Rishon LeZion 7505101, Israel;
| | - Avinash Mishra
- Division of Applied Phycology and Biotechnology, CSIR, Central Salt and Marine Chemicals Research Institute, G. B. Marg, Bhavnagar 364002, Gujarat, India;
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, Uttar Pradesh, India
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Hamad GM, Samy H, Mehany T, Korma SA, Eskander M, Tawfik RG, EL-Rokh GEA, Mansour AM, Saleh SM, EL Sharkawy A, Abdelfttah HEA, Khalifa E. Utilization of Algae Extracts as Natural Antibacterial and Antioxidants for Controlling Foodborne Bacteria in Meat Products. Foods 2023; 12:3281. [PMID: 37685214 PMCID: PMC10486444 DOI: 10.3390/foods12173281] [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: 07/24/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/10/2023] Open
Abstract
Padina pavonica, Hormophysa cuneiformis, and Corallina officinalis are three types of algae that are assumed to be used as antibacterial agents. Our study's goal was to look into algal extracts' potential to be used as food preservative agents and to evaluate their ability to inhibit pathogenic bacteria in several meat products (pastirma, beef burger, luncheon, minced meat, and kofta) from the local markets in Alexandria, Egypt. By testing their antibacterial activity, results demonstrated that Padina pavonica showed the highest antibacterial activity towards Bacillus cereus, Staphylococcus aureus, Escherichia coli, Streptococcus pyogenes, Salmonella spp., and Klebsiella pneumoniae. Padina pavonica extract also possesses most phenolic and flavonoid content overall. It has 24 mg gallic acid equivalent/g and 7.04 mg catechol equivalent/g, respectively. Moreover, the algae extracts were tested for their antioxidant activity, and the findings were measured using ascorbic acid as a benchmark. The IC50 of ascorbic acid was found to be 25.09 μg/mL, while Padina pavonica exhibited an IC50 value of 267.49 μg/mL, Corallina officinalis 305.01 μg/mL, and Hormophysa cuneiformis 325.23 μg/mL. In this study, Padina pavonica extract was utilized in three different concentrations (Treatment 1 g/100 g, Treatment 2 g/100 g, and Treatment 3 g/100 g) on beef burger as a model. The results showed that as the concentration of the extract increased, the bacterial inhibition increased over time. Bacillus cereus was found to be the most susceptible to the extract, while Streptococcus pyogenes was the least. In addition, Padina pavonica was confirmed to be a safe compound through cytotoxicity testing. After conducting a sensory evaluation test, it was confirmed that Padina pavonica in meat products proved to be a satisfactory product.
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Affiliation(s)
- Gamal M. Hamad
- Food Technology Department, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt;
| | - Haneen Samy
- Biotechnology and Chemistry Department, Faculty of Science, Alexandria University, Alexandria 22758, Egypt;
| | - Taha Mehany
- Food Technology Department, Arid Lands Cultivation Research Institute (ALCRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab 21934, Egypt;
| | - Sameh A. Korma
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig 44519, Egypt;
| | - Michael Eskander
- Department of Food Hygiene and Control, Faculty of Veterinary Medicine, Alexandria University, Alexandria 22758, Egypt;
| | - Rasha G. Tawfik
- Department of Microbiology, Faculty of Veterinary Medicine, Alexandria University, Alexandria 22758, Egypt;
| | - Gamal E. A. EL-Rokh
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Assiut 71524, Egypt; (G.E.A.E.-R.); (H.E.A.A.)
| | - Alaa M. Mansour
- Department of Animal Hygiene and Zoonoses, Faculty of Veterinary Medicine, Alexandria University, Alexandria 22758, Egypt;
| | - Samaa M. Saleh
- Department of Food Science, Faculty of Agriculture (Saba Basha), Alexandria University, Alexandria 21531, Egypt;
| | - Amany EL Sharkawy
- National Institute of Oceanography and Fisheries (NIOF), Cairo 11516, Egypt;
| | - Hesham E. A. Abdelfttah
- Department of Food Science and Technology, Faculty of Agriculture, Al-Azhar University, Assiut 71524, Egypt; (G.E.A.E.-R.); (H.E.A.A.)
| | - Eman Khalifa
- Department of Microbiology, Faculty of Veterinary Medicine, Matrouh University, Matrouh 51511, Egypt
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El-Sayed AIM, El-Sheekh MM, Makhlof MEM. Synergistic antibacterial effects of Ulva lactuca methanolic extract alone and in combination with different antibiotics on multidrug-resistant Klebsiella pneumoniae isolate. BMC Microbiol 2023; 23:106. [PMID: 37072731 PMCID: PMC10111689 DOI: 10.1186/s12866-023-02854-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 04/06/2023] [Indexed: 04/20/2023] Open
Abstract
Various antibiotics are available, including gentamicin, chloramphenicol, ampicillin, amoxicillin, and streptomycin, but they have some restrictions. Many microorganisms are resistant to these medications. A new antimicrobial source must be found or developed to solve this issue. Inhere, extract from seaweeds Ulva lactuca was investigated for its antibacterial activity using a well diffusion assay against Klebsiella pneumoniae, and a promising inhibition zone diameter was recorded to be 14.04 mm. The biochemical structure of the antibacterial compound was determined via GC-MS and FTIR analysis. Also, a micro-dilution assay was used to calculate the minimum concentration that makes inhibition (MIC) to be 1.25 mg/ml from U. extract reliable to prevent the visibility of any bacterial growth, this was followed by examining the antibacterial effect of U. Lactuca methanolic extract alone and the synergetic effect of U. Lactuca methanolic extract in combination with two different antibiotics (gentamicin and chloramphenicol). This was assayed by the agar well diffusion method to achieve promising and strong inhibiting power against K. pneumoniae. It was deduced that the maximum synergism could be achieved by adding 2.5 mg/ml of Ulva methanolic extract to gentamicin (4 µg/ml), and the results were illustrated obviously via transmission electron microscope in which severe morphological deteriorations were experienced by the treated cells. From this study, we can conclude that U. lactucae extract has the power to aid antibiotics in reducing the growth of pathogenic K. pneumoniae.
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Affiliation(s)
- Abeer I M El-Sayed
- Botany and Microbiology Department, Faculty of Science, Damanhour University, Damanhour, Egypt
| | - Mostafa M El-Sheekh
- Botany Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt.
| | - Mofida E M Makhlof
- Botany and Microbiology Department, Faculty of Science, Damanhour University, Damanhour, Egypt
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Peña-Medina RL, Fimbres-Olivarría D, Enríquez-Ocaña LF, Martínez-Córdova LR, Del-Toro-Sánchez CL, López-Elías JA, González-Vega RI. Erythroprotective Potential of Phycobiliproteins Extracted from Porphyridium cruentum. Metabolites 2023; 13:metabo13030366. [PMID: 36984806 PMCID: PMC10057957 DOI: 10.3390/metabo13030366] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/22/2023] [Accepted: 02/25/2023] [Indexed: 03/06/2023] Open
Abstract
There are multiple associations between the different blood groups (ABO and RhD) and the incidence of oxidative stress-related diseases, such as certain carcinomas and COVID-19. Bioactive compounds represent an alternative to its prevention and treatment. Phycobiliproteins (PBP) are bioactive compounds present in the microalga Porphyridium cruentum and, despite its antioxidant activity, their inhibitory effect on hemolysis has not been reported. The aim of this work was to evaluate the erythroprotective potential of phycobiliproteins from P. cruentum in different blood groups. The microalga was cultured in F/2 medium under controlled laboratory conditions. Day 10 of culture was determined as the harvest point. The microalgal biomass was lyophilized and a methanolic (MetOH), Tris HCl (T-HCl), and a physiological solution (PS) ultrasound-assisted extraction were performed. Extract pigments were quantified by spectrophotometry. The antioxidant activity of the extracts was evaluated with the ABTS+•, DPPH•, and FRAP methods, finding that the main antioxidant mechanism on the aqueous extracts was HAT (hydrogen atom transfer), while for MetOH it was SET (single electron transfer). The results of the AAPH, hypotonicity, and heat-induced hemolysis revealed a probable relationship between the different antigens (ABO and RhD) with the antihemolytic effect, highlighting the importance of bio-directed drugs.
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Affiliation(s)
- Rubria Lucía Peña-Medina
- Department of Scientific and Technological Research, University of Sonora, Blvd Luis Encinas y Reforma S/N, Col. Centro, Hermosillo 83000, Mexico
| | - Diana Fimbres-Olivarría
- Department of Scientific and Technological Research, University of Sonora, Blvd Luis Encinas y Reforma S/N, Col. Centro, Hermosillo 83000, Mexico
- Correspondence: (D.F.-O.); (R.I.G.-V.)
| | - Luis Fernando Enríquez-Ocaña
- Department of Scientific and Technological Research, University of Sonora, Blvd Luis Encinas y Reforma S/N, Col. Centro, Hermosillo 83000, Mexico
| | - Luis Rafael Martínez-Córdova
- Department of Scientific and Technological Research, University of Sonora, Blvd Luis Encinas y Reforma S/N, Col. Centro, Hermosillo 83000, Mexico
| | - Carmen Lizette Del-Toro-Sánchez
- Department of Research and Postgraduate in Food, University of Sonora, Blvd Luis Encinas y Rosales S/N, Col. Centro, Hermosillo 83000, Mexico
| | - José Antonio López-Elías
- Department of Scientific and Technological Research, University of Sonora, Blvd Luis Encinas y Reforma S/N, Col. Centro, Hermosillo 83000, Mexico
| | - Ricardo Iván González-Vega
- Department of Medical and Life Sciences, Cienega University Center (CUCIÉNEGA), University of Guadalajara, Av. Universidad 1115, Lindavista, Ocotlán 47820, Mexico
- Correspondence: (D.F.-O.); (R.I.G.-V.)
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Unnikrishnan PS, Animish A, Madhumitha G, Suthindhiran K, Jayasri MA. Bioactivity Guided Study for the Isolation and Identification of Antidiabetic Compounds from Edible Seaweed- Ulva reticulata. Molecules 2022; 27:molecules27248827. [PMID: 36557959 PMCID: PMC9783910 DOI: 10.3390/molecules27248827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/01/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022] Open
Abstract
Managing diabetes is challenging due to the complex physiology of the disease and the numerous complications associated with it. As part of the ongoing search for antidiabetic chemicals, marine algae have been demonstrated to be an excellent source due to their medicinal properties. In this study, Ulva reticulata extracts were investigated for their anti-diabetic effect by examining its inhibitory effects on α-amylase, α-glucosidase, and DPP-IV and antioxidant (DPPH) potential in vitro and its purified fraction using animal models. Among the various solvents used, the Methanolic extract of Ulva reticulata (MEUR) displayed the highest antidiabetic activity in both in vitro and in vivo; it showed no cytotoxicity and hence was subjected to bioassay-guided chromatographic separation. Among the seven isolated fractions (F1 to F7), the F4 (chloroform) fraction exhibited substantial total phenolic content (65.19 μg mL-1) and total flavonoid content (20.33 μg mL-1), which showed the promising inhibition against α-amylase (71.67%) and α-glucosidase (38.01%). Active fraction (F4) was further purified using column chromatography, subjected to thin-layer chromatography (TLC), and characterized by spectroscopy techniques. Upon structural elucidation, five distinct compounds, namely, Nonane, Hexadecanoic acid, 1-dodecanol, Cyclodecane methyl, and phenol, phenol, 3,5-bis(1,1-dimethylethyl) were identified. The antidiabetic mechanism of active fraction (F4) was further investigated using various in vitro and in vivo models. The results displayed that in in vitro both 1 and 24 h in vitro cultures, the active fraction (F4) at a concentration of 100 μg mL-1 demonstrated maximum glucose-induced insulin secretion at 4 mM (0.357 and 0.582 μg mL-1) and 20 mM (0.848 and 1.032 μg mL-1). The active fraction (F4) reduces blood glucose levels in normoglycaemic animals and produces effects similar to that of standard acarbose. Active fraction (F4) also demonstrated outstanding hypoglycaemic activity in hyperglycemic animals at a dose of 10 mg/kg B.wt. In the STZ-induced diabetic rat model, the active fraction (F4) showed a (61%) reduction in blood glucose level when compared to the standard drug glibenclamide (68%). The results indicate that the marine algae Ulva reticulata is a promising candidate for managing diabetes by inhibiting carbohydrate metabolizing enzymes and promoting insulin secretion.
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Affiliation(s)
| | - Andhere Animish
- Marine Biotechnology and Bioproducts Laboratory, Vellore Institute of Technology, School of Biosciences and Technology, Vellore 632014, India
| | - Gunabalan Madhumitha
- Chemistry of Heterocycles and Natural Products Research Laboratory, Vellore Institute of Technology, School of Advanced Sciences, Vellore 632014, India
| | - Krishnamurthy Suthindhiran
- Marine Biotechnology and Bioproducts Laboratory, Vellore Institute of Technology, School of Biosciences and Technology, Vellore 632014, India
| | - Mangalam Achuthananthan Jayasri
- Marine Biotechnology and Bioproducts Laboratory, Vellore Institute of Technology, School of Biosciences and Technology, Vellore 632014, India
- Correspondence:
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Alghazeer R, El Fatah H, Azwai S, Elghmasi S, Sidati M, El Fituri A, Althaluti E, Gammoudi F, Yudiati E, Talouz N, Shamlan G, Al-Farga A, Alansari WS, Eskandrani AA. Nutritional and Nonnutritional Content of Underexploited Edible Seaweeds. AQUACULTURE NUTRITION 2022; 2022:8422414. [PMID: 36860457 PMCID: PMC9973140 DOI: 10.1155/2022/8422414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 09/03/2022] [Accepted: 09/20/2022] [Indexed: 06/18/2023]
Abstract
Macroalgae are a valuable source of highly bioactive primary and secondary metabolites that may have useful bioapplications. To investigate the nutritional and nonnutritional contents of underexploited edible seaweeds, proximate composition, including protein, fat, ash, vitamins A, C, and E, and niacin, as well as important phytochemicals, including polyphenols, tannins, flavonoids, alkaloids, sterols, saponins, and coumarins, were screened from algal species using spectrophotometric methods. Ash content ranged from 3.15-25.23% for green seaweeds, 5-29.78% for brown algae, and 7-31.15% for red algae. Crude protein content ranged between 5 and 9.8% in Chlorophyta, 5 and 7.4% in Rhodophyta, and between 4.6 and 6.2% in Phaeophyceae. Crude carbohydrate contents ranged from 20 to 42% for the collected seaweeds, where green algae had the highest content (22.5-42%), followed by brown algae (21-29.5%) and red algae (20-29%). Lipid content was found to be low in all the studied taxa at approximately 1-6%, except for Caulerpa prolifera (Chlorophyta), which had a noticeable higher lipid content at 12.41%. These results indicated that Phaeophyceae were enriched with a high phytochemical content, followed by that of Chlorophyta and Rhodophyta. The studied algal species contained a high amount of carbohydrate and protein, indicating that they could be considered as a healthy food source.
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Affiliation(s)
- Rabia Alghazeer
- Chemistry Department, Faculty of Sciences, University of Tripoli, Tripoli, Libya
| | - Hesham El Fatah
- Botany Department Faculty of Science, Ain Shams University, Cairo, Egypt
| | - Salah Azwai
- Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Tripoli, Tripoli, Libya
| | - Sana Elghmasi
- Department of Biochemistry, Faculty of Medicine, University of Tripoli, Tripoli, Libya
| | - Maammar Sidati
- Marine Biotechnology Department, Marine Biology Research Center, Tajura-East of Tripoli, Tripoli, Libya
| | - Ali El Fituri
- Marine Biotechnology Department, Marine Biology Research Center, Tajura-East of Tripoli, Tripoli, Libya
| | - Ezdehar Althaluti
- Department of Marine Chemistry and Physics, Marin Biology Research Center, Tajura-East of Tripoli, Tripoli, Libya
| | - Ftaim Gammoudi
- Department of Microbiology and Parasitology, Faculty of Veterinary Medicine, University of Tripoli, Tripoli, Libya
| | - Ervia Yudiati
- Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Diponegoro, Jl., Indonesia
| | - Nadia Talouz
- Department of Botany, Faculty of Science, University of Tripoli, Tripoli, Libya
| | - Ghalia Shamlan
- Department of Food Science and Nutrition, College of Food and Agriculture Sciences, King Saud University, Riyadh 11362, Saudi Arabia
| | - Ammar Al-Farga
- Biochemistry Department, Faculty of Science, University of Jeddah, Jeddah 21577, Saudi Arabia
| | - Wafa S Alansari
- Biochemistry Department, Faculty of Science, University of Jeddah, Jeddah 21577, Saudi Arabia
| | - Areej A Eskandrani
- Chemistry Department, Faculty of Science, Taibah University, Medina 30002, Saudi Arabia
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Obluchinskaya ED, Pozharitskaya ON, Shikov AN. In Vitro Anti-Inflammatory Activities of Fucoidans from Five Species of Brown Seaweeds. Mar Drugs 2022; 20:606. [PMID: 36286430 PMCID: PMC9605532 DOI: 10.3390/md20100606] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 09/18/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to compare the anti-inflammatory effects of fucoidans from brown seaweeds (Saccharina japonica (SJ), Fucus vesiculosus (FV), Fucus distichus (FD), Fucus serratus (FS), and Ascophyllum nodosum (AN)), and determine the relationship between composition and biological activity. The anti-inflammatory activity was tested in vitro. It is believed that inflammation could be triggered by free radicals. Fucoidans from F. vesiculosus (FV1 and FV3) showed the strongest 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity with an IC50 = 0.05 mg/mL. In the total antioxidant capacity (TAC) test, the activity was concentration-dependent. Notable, the TAC of fucoidans except samples of FV2 and SJ (which have a lower phenolic content) was higher than that of phloroglucinol. The TAC of fucoidans strongly and positively correlated with polyphenol content. A weak correlation was associated with xylose content. The synergistic effect for fucoidans was calculated for the first time using carbohydrates and polyphenols as model mixtures. The synergy in the DPPH test was found only for FV1 and FV3 (mixture effect ME = 2.68 and 2.04, respectively). The ME strongly positively correlated with polyphenols. The relationship of ME with fucose content was positive but moderate. It was first established that the anti-inflammatory effects of fucoidan could be mediated via the inhibition of protein denaturation. The inhibition was concentration-dependent and strongly correlated with the fucose content and moderate with sulfate content. The purified fucoidan FV2 showed the most promising activity (IC50 = 0.20 mg/mL vs. IC50 = 0.37 mg/mL for diclofenac sodium). Similar relations were also observed in the membrane protection model. Fucoidans were able to stabilize the cell membrane integrity of human red blood corpuscles (HRBC). The results of our study support the rationality of fucoidan use as a promising agent for the treatment of inflammatory-related diseases via mechanisms of radical scavenging, antioxidant activity, inhibition of protein denaturation, and HRBC membrane stabilization.
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Affiliation(s)
- Ekaterina D. Obluchinskaya
- Murmansk Marine Biological Institute of the Russian Academy of Sciences (MMBI RAS), 17 Vladimirskaya str., Murmansk 183010, Russia
| | - Olga N. Pozharitskaya
- Murmansk Marine Biological Institute of the Russian Academy of Sciences (MMBI RAS), 17 Vladimirskaya str., Murmansk 183010, Russia
| | - Alexander N. Shikov
- Murmansk Marine Biological Institute of the Russian Academy of Sciences (MMBI RAS), 17 Vladimirskaya str., Murmansk 183010, Russia
- Department of Technology of Pharmaceutical Formulations, St. Petersburg State Chemical Pharmaceutical University, 14a Prof. Popov str., Saint Petersburg 197376, Russia
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El Fayoumy RA, El-Sheekh MM, Abu Ahmed SE. Potential of Ulvan Polysaccharide from Ulva lactuca as Antifungal Against Some Foodborne Fungi Isolated from Spoiled Tomato Sauce Cans. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2022. [DOI: 10.1080/10498850.2022.2093149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Reham A. El Fayoumy
- Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, Egypt
| | - Mostafa M. El-Sheekh
- Department of Botany and Microbiology, Faculty of Science, Tanta University, Tanta, Egypt
| | - Seham E. Abu Ahmed
- Department of Botany and Microbiology, Faculty of Science, Damietta University, New Damietta, Egypt
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SON NH, TUAN NT, TRAN TM. Investigation of chemical composition and evaluation of antioxidant, antibacterial and antifungal activities of ethanol extract from Bidens pilosa L. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.22722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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MOUFAKKIR C, KHARBACH Y, TANGHORT M, DASSOULI A, REMMAL A. Antioxidant effect of natural rosemary on the oxidation of mid-oleic sunflower frying oil on chicken wings. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.70122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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WU Y, HAN YS, KIM MH. Antioxidant, α-amylase and α-glucosidase inhibitory activities of Cedrela sinensis (A. Juss) leaf with ethanol extract concentration. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.89122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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