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Curtasu MV, Nørskov NP. Quantitative distribution of flavan-3-ols, procyanidins, flavonols, flavanone and salicylic acid in five varieties of organic winter dormant Salix spp. by LC-MS/MS. Heliyon 2024; 10:e25129. [PMID: 38333780 PMCID: PMC10850552 DOI: 10.1016/j.heliyon.2024.e25129] [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: 08/07/2023] [Revised: 11/30/2023] [Accepted: 01/21/2024] [Indexed: 02/10/2024] Open
Abstract
Willow trees (Salix spp.) exhibit remarkable genetic and phenotypic diversity, yielding a broad spectrum of bioactive compounds, notably valuable phenolic compounds such as condensed tannins (phenolic polymers), flavonoids, salicylic glucosides, and phenolic compounds. These enhance the economic value of willow crops and make them suitable for circular bioeconomy. Phenolic compounds known for their diverse applications as antioxidants, antimicrobial agents, pharmaceuticals, nutraceuticals and antiseptics and more, find a natural source in willow. This study aimed to elucidate the composition of 12 flavonoids and salicylic acid in different segments of five organic winter dormant willow species (S. daphnoides, S. fragilis, S. dasyclados, S. viminalis, and S. dasyclados x viminalis) using quantitative analysis and providing valuable insights into their high-value phenolic compounds. Separation into buds, wood and bark segments allowed for a precise characterization of the location of certain phenolic compounds and quantification using LC-MS/MS techniques. LC-MS/MS is an analytical technique known for its increased sensitivity and chromatographic precision. Among the findings, catechin emerged as the predominant flavan-3-ol in all Salix species, with the highest concentration in the buds of Salix viminalis (7.26 mg/g DM). Naringenin exhibited species-specific variations, with S. dasyclados and S. viminalis recording the highest levels. Salicylic acid concentrations peaked in S. dasyclados (5.38 mg/g DM) and S. daphnoides (4.43 mg/g DM), particularly within the bark. When evaluating other individual flavonoids and total polyphenol content (TPC), disparities between buds, bark, and wood became evident, with wood consistently displaying the lowest content. Notably, the higher concentration of polyphenolic compounds in willow bark can be attributed to its susceptibility to external threats and its role as a robust defense mechanism against pathogens and herbivores. This study underscores the significance of diverse willow species as a source of high-value phenolic compounds, distributed differentially across plant parts and species. This knowledge holds promise for their potential applications in the circular bioeconomy.
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Affiliation(s)
- Mihai Victor Curtasu
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Alle 20, 8830 Tjele, Denmark
| | - Natalja P. Nørskov
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Alle 20, 8830 Tjele, Denmark
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2
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Čėsna V, Čėsnienė I, Sirgedaitė-Šėžienė V, Marčiulynienė D. Changes in Biologically Active Compounds in Pinus sylvestris Needles after Lymantria monacha Outbreaks and Treatment with Foray 76B. PLANTS (BASEL, SWITZERLAND) 2024; 13:328. [PMID: 38276785 PMCID: PMC10821276 DOI: 10.3390/plants13020328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/16/2024] [Accepted: 01/20/2024] [Indexed: 01/27/2024]
Abstract
Due to climate warming, the occurrence of Lymantria monacha outbreaks is predicted to become more frequent, causing repeated and severe damage to conifer trees. Currently, the most effective way to control the outbreaks is aerial spraying with the bioinsecticide Foray 76B. The present study aimed to determine the impact of both: (i) L. monacha outbreaks and (ii) treatment with Foray 76B on tree resistance through the synthesis of polyphenols (TPC), flavonoids (TFC), photosynthetic pigments (chlorophyll a and b, carotenoids), lipid peroxidation (MDA), and soluble sugars (TSS) in Pinus sylvestris needles. Samples were collected from visually healthy (control), damaged/untreated, and damaged/Foray 76B-treated plots in 2020 and 2021 (following year after the outbreaks). The results revealed that L. monacha outbreaks contributed to the increase in TPC by 34.1% in 2020 and 26.7% in 2021. TFC negatively correlated with TPC, resulting in 17.6% and 11.1% lower concentrations in L. monacha-damaged plots in 2020 and 2021, respectively. A decrease in MDA was found in the damaged plots in both 2020 and 2021 (10.2% and 23.3%, respectively), which was associated with the increased synthesis of photosynthetic pigments in 2021. The research results also showed that in the following year after the outbreaks, the increase in the synthesis of photosynthetic pigments was also affected by the treatment with Foray 76B. Moreover, the increase in the synthesis of TPC and photosynthetic pigments in the damaged plots in 2021 illustrates the ability of pines to keep an activated defense system to fight biotic stress. Meanwhile, a higher synthesis of photosynthetic pigments in Foray 76B-treated plots indicates a possible effect of the treatment on faster tree growth and forest recovery after L. monacha outbreaks.
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Affiliation(s)
- Vytautas Čėsna
- Institute of Forestry, Lithuanian Research Centre for Agriculture and Forestry, Liepų 1, Girionys, LT-53101 Kaunas, Lithuania; (I.Č.); (V.S.-Š.); (D.M.)
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3
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Popescu (Stegarus) DI, Frum A, Dobrea CM, Cristea R, Gligor FG, Vicas LG, Ionete RE, Sutan NA, Georgescu C. Comparative Antioxidant and Antimicrobial Activities of Several Conifer Needles and Bark Extracts. Pharmaceutics 2023; 16:52. [PMID: 38258063 PMCID: PMC10821083 DOI: 10.3390/pharmaceutics16010052] [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: 12/06/2023] [Revised: 12/22/2023] [Accepted: 12/26/2023] [Indexed: 01/24/2024] Open
Abstract
Nowadays, an increased concern regarding using natural products for their health benefits can be observed. The aim of this study was to assess and compare several phenolic compounds found in 15- to 60-year-old Douglas fir, silver fir, larch, pine, and spruce needle and bark extracts and to evaluate their antioxidant and antimicrobial activities. Spectrophotometric assays were used to determine the total polyphenol content and the antioxidant activity that was assessed by using the DPPH• radical scavenging assay (RSA), the ferric reducing antioxidant power assay (FRAP), and the ABTS•+ radical cation scavenging assay (ABTS). The phytochemical content was determined by using high-performance liquid chromatography, and the antimicrobial activity was determined by assessing the minimal inhibition concentration (MIC). The results of the study show a total polyphenol content of 62.45-109.80 mg GAE/g d.w. and an antioxidant activity of 91.18-99.32% for RSA, 29.16-35.74 µmol TE/g d.w. for FRAP, and 38.23-53.57 µmol TE/g d.w. for ABTS. The greatest quantity of phenolic compound for most of the extracts was for (+)-catechin, and it had values between 165.79 and 5343.27 µg/g d.w. for these samples. The antimicrobial inhibition for all the extracts was the strongest for Staphylococcus aureus (MIC 62.5-125 µg/mL). The extracts analyzed could be used for their bioactive potential after further investigations.
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Affiliation(s)
- Diana Ionela Popescu (Stegarus)
- National Research and Development Institute for Cryogenic and Isotopic Technologies—ICSI Ramnicu Valcea, 240050 Ramnicu Valcea, Romania; (D.I.P.); (R.E.I.)
| | - Adina Frum
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania;
| | - Carmen Maximiliana Dobrea
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania;
| | - Ramona Cristea
- Department of Agricultural Sciences and Food Engineering, “Lucian Blaga” University of Sibiu, 550012 Sibiu, Romania; (R.C.); (C.G.)
| | - Felicia Gabriela Gligor
- Preclinical Department, Faculty of Medicine, “Lucian Blaga” University of Sibiu, 550169 Sibiu, Romania;
| | - Laura Gratiela Vicas
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania;
| | - Roxana Elena Ionete
- National Research and Development Institute for Cryogenic and Isotopic Technologies—ICSI Ramnicu Valcea, 240050 Ramnicu Valcea, Romania; (D.I.P.); (R.E.I.)
| | - Nicoleta Anca Sutan
- Department of Natural Sciences, Piteşti University Center, National University of Science and Technology Politechnica Bucharest, 110040 Pitesti, Romania;
| | - Cecilia Georgescu
- Department of Agricultural Sciences and Food Engineering, “Lucian Blaga” University of Sibiu, 550012 Sibiu, Romania; (R.C.); (C.G.)
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Klavins L, Almonaitytė K, Šalaševičienė A, Zommere A, Spalvis K, Vincevica-Gaile Z, Korpinen R, Klavins M. Strategy of Coniferous Needle Biorefinery into Value-Added Products to Implement Circular Bioeconomy Concepts in Forestry Side Stream Utilization. Molecules 2023; 28:7085. [PMID: 37894564 PMCID: PMC10609605 DOI: 10.3390/molecules28207085] [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: 07/07/2023] [Revised: 09/24/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Sustainable development goals require a reduction in the existing heavy reliance on fossil resources. Forestry can be considered a key resource for the bioeconomy, providing timber, energy, chemicals (including fine chemicals), and various other products. Besides the main product, timber, forestry generates significant amounts of different biomass side streams. Considering the unique and highly complex chemical composition of coniferous needle/greenery biomass, biorefinery strategies can be considered as prospective possibilities to address top segments of the bio-based value pyramid, addressing coniferous biomass side streams as a source of diverse chemical substances with applications as the replacement of fossil material-based chemicals, building blocks, food, and feed and applications as fine chemicals. This study reviews biorefinery methods for coniferous tree forestry biomass side streams, exploring the production of value-added products. Additionally, it discusses the potential for developing further biorefinery strategies to obtain products with enhanced value.
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Affiliation(s)
- Linards Klavins
- Department of Environmental Science, University of Latvia, Raina Blvd. 19, LV-1586 Riga, Latvia; (A.Z.); (Z.V.-G.); (M.K.)
| | - Karolina Almonaitytė
- Food Institute, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania; (K.A.); (A.Š.)
| | - Alvija Šalaševičienė
- Food Institute, Kaunas University of Technology, Radvilenu Rd. 19, LT-50254 Kaunas, Lithuania; (K.A.); (A.Š.)
| | - Alise Zommere
- Department of Environmental Science, University of Latvia, Raina Blvd. 19, LV-1586 Riga, Latvia; (A.Z.); (Z.V.-G.); (M.K.)
| | | | - Zane Vincevica-Gaile
- Department of Environmental Science, University of Latvia, Raina Blvd. 19, LV-1586 Riga, Latvia; (A.Z.); (Z.V.-G.); (M.K.)
| | - Risto Korpinen
- Biomass Fractionation Technologies, Production Systems, Natural Resources Institute Finland, Viikinkaari 9, FI-00790 Helsinki, Finland;
| | - Maris Klavins
- Department of Environmental Science, University of Latvia, Raina Blvd. 19, LV-1586 Riga, Latvia; (A.Z.); (Z.V.-G.); (M.K.)
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5
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Nørskov NP, Battelli M, Curtasu MV, Olijhoek DW, Chassé É, Nielsen MO. Methane reduction by quercetin, tannic and salicylic acids: influence of molecular structures on methane formation and fermentation in vitro. Sci Rep 2023; 13:16023. [PMID: 37749362 PMCID: PMC10519955 DOI: 10.1038/s41598-023-43041-w] [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: 07/03/2023] [Accepted: 09/18/2023] [Indexed: 09/27/2023] Open
Abstract
Plant secondary metabolites (PSMs) can potentially reduce ruminal methane formation. However, related to differences in their molecular structures, it is not yet clear what causes an anti-methanogenic effect. In an in vitro system simulating rumen fermentation, we investigated the impact of eight compounds with distinct chemical characteristics (gallic and salicylic acids, tannic acid, catechin, epicatechin, quercetin, rutin, and salicin) when added to a basal feed (maize silage) at a concentration of 12% of the feed dry matter. After 48 h of incubation in buffered rumen fluid, methane production was significantly lowered by quercetin (43%), tannic acid (39%) and salicylic acid (34%) compared to the control (maize silage alone) and without changes in total volatile fatty acid production during fermentation. No other PSM reduced methane formation as compared to control but induced significant differences on total volatile fatty acid production. The observed differences were related to lipophilicity, the presence of double bond and carbonyl group, sugar moieties, and polymerization of the compounds. Our results indicate the importance of distinct molecular structures of PSMs and chemical characteristics for methane lowering properties and volatile fatty acid formation. Further systematic screening studies to establish the structure-function relationship between PSMs and methane reduction are warranted.
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Affiliation(s)
- Natalja P Nørskov
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark.
| | - Marco Battelli
- Department of Agricultural and Environmental Sciences-Production, Landscape, Agroenergy, Università degli Studi di Milano, Via Celoria 2, 20133, Milan, Italy
| | - Mihai V Curtasu
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
| | - Dana W Olijhoek
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
| | - Élisabeth Chassé
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
| | - Mette Olaf Nielsen
- Department of Animal and Veterinary Sciences, Aarhus University, Blichers Allé 20, 8830, Tjele, Denmark
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Withouck H, Paelinck A, Foubert I, Fraeye I. Ultrasound-Assisted Extraction of Applewood Polyphenols at Lab and Pilot Scales. Foods 2023; 12:3142. [PMID: 37685082 PMCID: PMC10486881 DOI: 10.3390/foods12173142] [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: 06/29/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 09/10/2023] Open
Abstract
This study focused on the extraction of polyphenols from applewood using ultrasonic-assisted extraction (UAE). First, the influence of solvent composition and mass-volume (m:v) ratio on the extraction yield was studied at a lab scale (200 mL). Overall, a ratio of 1:33 (m:v) resulted in a higher yield of polyphenols. Furthermore, both a higher yield of polyphenols and higher antioxidant capacity were detected in the extracts produced in the presence of a 30 v/v % ethanol mixture compared to pure water; a further increase in ethanol did not improve the extraction yield. Second, under the optimal conditions (30 v/v % ethanol-water; 1:33 and 1:20 (m:v)), the UAE technique was applied at a pilot scale (100 L). At 1:33 (m:v), the polyphenol yield was lower at the pilot scale compared to the lab scale; by contrast, at 1:20 (m:v), production at the pilot scale resulted in a higher yield compared to the lab scale. To identify and quantify individual polyphenols, HPLC-PDA analyses were performed. Phloridzin appears to be the major identified compound. Finally, the UAE process was compared to a conventional solid-liquid extraction technique, showing that a significantly higher yield could be obtained with UAE.
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Affiliation(s)
- Hannes Withouck
- Biochemical Innovation Team Odisee (BIT-O), Department Chemistry, University College Odisee, Gebroeders De Smetstraat 1, 9000 Ghent, Belgium;
- Meat Technology & Science of Protein-rich Foods (MTSP), Department M2S, Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven—Ghent, Gebroeders De Smetstraat 1, 9000 Ghent, Belgium;
| | - Axel Paelinck
- Biochemical Innovation Team Odisee (BIT-O), Department Chemistry, University College Odisee, Gebroeders De Smetstraat 1, 9000 Ghent, Belgium;
| | - Imogen Foubert
- Research Unit Food & Lipids, KU Leuven Kulak, E. Sabbelaan 53, 8500 Kortrijk, Belgium;
- Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
| | - Ilse Fraeye
- Meat Technology & Science of Protein-rich Foods (MTSP), Department M2S, Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven—Ghent, Gebroeders De Smetstraat 1, 9000 Ghent, Belgium;
- Leuven Food Science and Nutrition Research Centre (LFoRCe), KU Leuven, Kasteelpark Arenberg 20, 3001 Leuven, Belgium
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7
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Geana EI, Ciucure CT, Tamaian R, Marinas IC, Gaboreanu DM, Stan M, Chitescu CL. Antioxidant and Wound Healing Bioactive Potential of Extracts Obtained from Bark and Needles of Softwood Species. Antioxidants (Basel) 2023; 12:1383. [PMID: 37507922 PMCID: PMC10376860 DOI: 10.3390/antiox12071383] [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: 06/12/2023] [Revised: 06/28/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023] Open
Abstract
Interest in the extraction of phytochemical bioactive compounds, especially polyphenols from biomass, has recently increased due to their valuable biological potential as natural sources of antioxidants, which could be used in a wide range of applications, from foods and pharmaceuticals to green polymers and bio-based materials. The present research study aimed to provide a comprehensive chemical characterization of the phytochemical composition of forest biomass (bark and needles) of softwood species (Picea abies L., H. Karst., and Abies alba Mill.) and to investigate their in vitro antioxidant and antimicrobial activities to assess their potential in treating and healing infected chronic wounds. The DPPH radical-scavenging method and P-LD were used for a mechanistic explanation of the biomolecular effects of the investigated bioactive compounds. (+)-Catechin, epicatechin, rutin, myricetin, 4 hydroxybenzoic and p-cumaric acids, kaempherol, and apigenin were the main quantified polyphenols in coniferous biomass (in quantities around 100 µg/g). Also, numerous phenolic acids, flavonoids, stilbenes, terpenes, lignans, secoiridoids, and indanes with antioxidant, antimicrobial, anti-inflammatory, antihemolytic, and anti-carcinogenic potential were identified. The Abies alba needle extract was more toxic to microbial strains than the eukaryotic cells that provide its active wound healing principles. In this context, developing industrial upscaling strategies is imperative for the long-term success of biorefineries and incorporating them as part of a circular bio-economy.
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Affiliation(s)
- Elisabeta-Irina Geana
- National Research and Development Institute for Cryogenics and Isotopic Technologies, 240050 Ramnicu Valcea, Romania;
| | - Corina Teodora Ciucure
- National Research and Development Institute for Cryogenics and Isotopic Technologies, 240050 Ramnicu Valcea, Romania;
| | - Radu Tamaian
- National Research and Development Institute for Cryogenics and Isotopic Technologies, 240050 Ramnicu Valcea, Romania;
| | - Ioana Cristina Marinas
- Department of Microbiology and Biochemistry, Research Institute of the University of Bucharest-ICUB, 050567 Bucharest, Romania; (D.M.G.); (M.S.)
| | - Diana Mădălina Gaboreanu
- Department of Microbiology and Biochemistry, Research Institute of the University of Bucharest-ICUB, 050567 Bucharest, Romania; (D.M.G.); (M.S.)
- National Institute of Research and Development for Biological Sciences, 060031 Bucharest, Romania
| | - Miruna Stan
- Department of Microbiology and Biochemistry, Research Institute of the University of Bucharest-ICUB, 050567 Bucharest, Romania; (D.M.G.); (M.S.)
| | - Carmen Lidia Chitescu
- Faculty of Medicine and Pharmacy, “Dunarea de Jos” University of Galati, 800008 Galati, Romania;
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8
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Komorowicz M, Janiszewska-Latterini D, Przybylska-Balcerek A, Stuper-Szablewska K. Fungal Biotransformation of Hazardous Organic Compounds in Wood Waste. Molecules 2023; 28:4823. [PMID: 37375379 DOI: 10.3390/molecules28124823] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/11/2023] [Accepted: 06/13/2023] [Indexed: 06/29/2023] Open
Abstract
A diverse spectrum of organisms, such as fungi, bacteria, and actinomycetes, can degrade and transform organic matter, including wood, into valuable nutrients. A sustainable economy has the goal of efficiently using waste as raw materials, and in this optic, it uses biological preparations more and more often, supporting the decomposition of lignocellulosic waste. With reference to wood wastes, which are produced in a substantial amount by the forest and wood industry, one of the possibilities to biodegrade such lignocellulosic material is the composting process. In particular, microbiological inoculum containing dedicated fungi can contribute to the biodegradation of wood waste, as well as the biotransformation of substances from the protection of wood, such as pentachlorophenol (PCP), lindane (hexachlorobenzene) and polycyclic aromatic hydrocarbons (PAHs). The purpose of this research was to produce a literature review in terms of the selection of decay fungi that could potentially be used in toxic biotransformation unions. The findings of the literature review highlighted how fungi such as Bjerkandera adusta, Phanerochaete chrysosporium, and Trametes versicolor might be ingredients of biological consortia that can be effectively applied in composting wood waste containing substances such as pentachlorophenol, lindane, and polycyclic aromatic hydrocarbons (PAHs).
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Affiliation(s)
- Magdalena Komorowicz
- Łukasiewicz Research Network-Poznan Institute of Technology, 60-654 Poznan, Poland
- Faculty of Forestry and Wood Technology, Department of Chemistry, Poznan University of Life Sciences, 60-628 Poznan, Poland
| | | | - Anna Przybylska-Balcerek
- Faculty of Forestry and Wood Technology, Department of Chemistry, Poznan University of Life Sciences, 60-628 Poznan, Poland
| | - Kinga Stuper-Szablewska
- Faculty of Forestry and Wood Technology, Department of Chemistry, Poznan University of Life Sciences, 60-628 Poznan, Poland
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Sharifi-Rad J, Seidel V, Izabela M, Monserrat-Mequida M, Sureda A, Ormazabal V, Zuniga FA, Mangalpady SS, Pezzani R, Ydyrys A, Tussupbekova G, Martorell M, Calina D, Cho WC. Phenolic compounds as Nrf2 inhibitors: potential applications in cancer therapy. Cell Commun Signal 2023; 21:89. [PMID: 37127651 PMCID: PMC10152593 DOI: 10.1186/s12964-023-01109-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/22/2023] [Indexed: 05/03/2023] Open
Abstract
Cancer is a leading cause of death worldwide and involves an oxidative stress mechanism. The transcription factor Nrf2 has a crucial role in cytoprotective response against oxidative stress, including cancer growth and progression and therapy resistance. For this reason, inhibitors of Nrf2 are new targets to be studied. Traditional plant-based remedies rich in phytochemicals have been used against human cancers and phenolic compounds are known for their chemopreventive properties. This comprehensive review offers an updated review of the role of phenolic compounds as anticancer agents due to their action on Nrf2 inhibition. In addition, the role of naturally-occurring bioactive anticancer agents are covered in the clinical applications of polyphenols as Nrf2 inhibitors. Video Abstract.
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Affiliation(s)
| | - Veronique Seidel
- Natural Products Research Laboratory, Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
| | - Michalak Izabela
- Department of Advanced Material Technologies, Faculty of Chemistry, Wroclaw University of Science and Technology, Smoluchowskiego 25, 50-372, Wroclaw, Poland
| | - Margalida Monserrat-Mequida
- Research Group in Community Nutrition and Oxidative Stress, University of the Balearic Islands-IUNICS, 07122, Palma, Spain
- Health Research Institute of Balearic Islands (IdISBa), 07120, Palma, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Antoni Sureda
- Research Group in Community Nutrition and Oxidative Stress, University of the Balearic Islands-IUNICS, 07122, Palma, Spain
- Health Research Institute of Balearic Islands (IdISBa), 07120, Palma, Spain
- CIBER Fisiopatología de La Obesidad Y Nutrición (CIBEROBN), Instituto de Salud Carlos III (ISCIII), 28029, Madrid, Spain
| | - Valeska Ormazabal
- Department of Pharmacology, Faculty of Biological Sciences, University of Concepción, Concepción, Chile
| | - Felipe A Zuniga
- Department of Clinical Biochemistry and Immunology, Faculty of Pharmacy, University of Concepción, Concepción, Chile
| | | | - Raffaele Pezzani
- Phytotherapy Lab, Endocrinology Unit, Department of Medicine (DIMED), University of Padova, Via Ospedale 105, 35128, Padova, Italy
- AIROB, Associazione Italiana Per La Ricerca Oncologica Di Base, Padova, Italy
| | - Alibek Ydyrys
- Biomedical Research Centre, Al-Farabi Kazakh National University, Al-Farabi Ave. 71, 050040, Almaty, Kazakhstan
- The Elliott School of International Affairs, 1957 E St NW, George Washington UniversityWashington DC, 20052, USA
| | - Gulmira Tussupbekova
- Department of Biophysics, Biomedicine and Neuroscience, Al-Farabi Kazakh National University, Al-Farabi Ave. 71, 050040, Almaty, Kazakhstan
| | - Miquel Martorell
- Department of Nutrition and Dietetics, Faculty of Pharmacy, and Centre for Healthy Living, University of Concepción, Concepción, Chile.
- Universidad de Concepción, Unidad de Desarrollo Tecnológico, UDT, 4070386, Concepción, Chile.
| | - Daniela Calina
- Department of Clinical Pharmacy, University of Medicine and Pharmacy of Craiova, 200349, Craiova, Romania.
| | - William C Cho
- Department of Clinical Oncology, Queen Elizabeth Hospital, Kowloon, Hong Kong.
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10
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Flotemersch JE. Conservation of blackwater rivers and streams of the coastal plains of United States: Knowledge and research needs. AMBIO 2023; 52:665-677. [PMID: 36595215 PMCID: PMC9849538 DOI: 10.1007/s13280-022-01818-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/02/2022] [Accepted: 11/23/2022] [Indexed: 06/17/2023]
Abstract
Blackwater rivers and streams are a distinct resource type in multiple ecoregions of the United States, including the Coastal Plains. Given the unique nature of blackwaters, they may not be fully protected if using typical water quality standards. Information provided by State agencies was used to identify specific research needs that would directly enhance current assessment approaches. Protection of blackwater rivers and streams would be aided by (1) development of an operational definition; (2) development of a classification framework that distinguishes among blackwater system types; (3) identification of undisturbed or minimally disturbed blackwater systems; (4) identification of stressors that challenge blackwater condition and resilience; and (5) development of criteria that are more suited to the unique conditions of blackwater rivers and streams. Benefits stemming from addressing these research needs may include identification of sites that are unrecognized as impaired and the re-evaluation of sites that may be erroneously listed as impaired when they are not. This would improve reporting by states for Clean Water Act (CWA) Section 305(b) and, for some states, could represent a significant resource savings by reducing the number of sites on CWA Section 303d lists.
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Affiliation(s)
- Joseph E Flotemersch
- U.S. Environmental Protection Agency, Office of Research & Development, Cincinnati, OH, USA.
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11
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Parsaeian MR, Haji Shabani AM, Dadfarnia S, Zare-Zardini H, Soltaninejad H, Forouzani-Moghaddam MJ. Evaluating the biological activities of functionalized magnetic iron oxide nanoparticles with different concentrations of aqueous pine leaves extract. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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12
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Use of Secondary Metabolites of Wood-Decaying Fungi to Reduce Damping off Disease. FORESTS 2022. [DOI: 10.3390/f13081208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Phytopathogenic fungi can cause plant diseases that are difficult to control, including mass mortality of some tree species. The Fusarium oxysporum complex (sensu lato) is one of the most dangerous groups of phytopathogenic fungi, causing the death of conifer species, including Pinus sylvestris seedlings in forest and ornamental nurseries. Recently, non-chemical methods of plant protection have become the basis of integrated pest management (IPM) in the European Union (EC Directive). The possibility of protection of pine seedlings against the pathogen F. oxysporum using active substances from wood-destroying fungi commonly found in forests was examined. Methanolic extracts of Fomitopsis pinicola, Ganoderma applanatum, and Trametes versicolor were found to contain substances effective in both prevention and treatment of infected seedlings. G. applanatum and T. versicolor showed particular biological activity in increasing plant resistance. Efficacy, especially of the extract of F. pinicola, increased with concentration. Further field trials are needed to confirm the results obtained in laboratory tests on plant protection.
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13
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Michalak I, Püsküllüoğlub M. Look into my onco-forest - review of plant natural products with anticancer activity. Curr Top Med Chem 2022; 22:922-938. [PMID: 35240958 DOI: 10.2174/1568026622666220303112218] [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: 10/31/2021] [Revised: 12/31/2021] [Accepted: 01/23/2022] [Indexed: 12/24/2022]
Abstract
Cancer is a multistage process that can be treated by numerous modalities including systemic treatment. About half of the molecules that have been approved in the last few decades count for plant derivatives. This review presents the application of tree/shrub-derived biologically active compounds as anticancer agents. Different parts of trees/shrubs - wood, bark, branches, roots, leaves, needles, fruits, flowers etc. - contain a wide variety of primary and secondary metabolites, which demonstrate anticancer properties. Special attention was paid to phenolics (phenolic acids and polyphenols, including flavonoids and non-flavonoids (tannins, lignans, stilbenes)), essential oils and their main constituents such as terpenes/terpenoids, phytosterols, alkaloids and many others. Anticancer properties of these compounds are mainly attributed to their strong antioxidant properties. In vitro experiments on various cancer cell lines revealed a cytotoxic effect of tree-derived extracts. Mechanisms of anticancer action of the extracts are also listed. Examples of drugs that successfully underwent clinical trials with well-established position in the guidelines created by oncological societies are provided. The review also focuses on directions for the future in the development of anticancer agents derived from trees/shrubs. Applying biologically active compounds derived from trees and shrubs as anticancer agents continuously seems a promising strategy in cancer systemic treatment.
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Affiliation(s)
- Izabela Michalak
- Department of Advanced Material Technologies, Faculty of Chemistry, Wrocław University of Science and Technology, Wrocław, Poland
| | - Mirosława Püsküllüoğlub
- Labcorp (Polska) Sp. z o.o., Warsaw, Poland; c Department of Clinical Oncology, Maria Sklodowska Curie National Research Institute of Oncology, Cracow Branch, Kraków, Poland
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14
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The Study of Chemical Profile and Antioxidant Properties of Poplar-Type Polish Propolis Considering Local Flora Diversity in Relation to Antibacterial and Anticancer Activities in Human Breast Cancer Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030725. [PMID: 35163989 PMCID: PMC8840218 DOI: 10.3390/molecules27030725] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 01/11/2022] [Accepted: 01/20/2022] [Indexed: 12/17/2022]
Abstract
Nine samples of ethanolic extracts of poplar-type propolis (EEP) originated from South-Eastern Poland were analyzed in terms of the diversity of the flora around the apiary. The mineral composition, antioxidant properties, polyphenolic profile (HPTLC), and main polyphenolic constituents (HPLC-DAD) were determined. Only minor differences in chemical composition and antioxidant capacity between tested EEPs were found regardless of their botanical origin. However, the biological activity of the EEPs was more diversified. The tested EEPs showed stronger antibacterial activity against Gram-negative bacteria (Escherichia coli) compared to Gram-positive bacteria (Staphylococcus aureus and Staphylococcus epidermidis). Staphylococci biofilm inhibition occurred as a result of exposure to the action of four out of nine EEPs (P1–P4). Due to the various compositions of individual EEPs, a different MCF-7 cellular response was observed according to inhibition of cells migration and proliferation. Almost every sample inhibited the migration of breast cancer cells at a low concentration (0.04 µg/mL) of propolis. Even at the lowest concentration (0.02 µg/mL), each EEP inhibited the proliferation of MCF-7 cells, however, the level of inhibition varied between samples.
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15
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Bock P, Felhofer M, Mayer K, Gierlinger N. A Guide to Elucidate the Hidden Multicomponent Layered Structure of Plant Cuticles by Raman Imaging. FRONTIERS IN PLANT SCIENCE 2021; 12:793330. [PMID: 34975980 PMCID: PMC8718554 DOI: 10.3389/fpls.2021.793330] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 11/09/2021] [Indexed: 05/29/2023]
Abstract
The cuticle covers almost all plant organs as the outermost layer and serves as a transpiration barrier, sunscreen, and first line of defense against pathogens. Waxes, fatty acids, and aromatic components build chemically and structurally diverse layers with different functionality. So far, electron microscopy has elucidated structure, while isolation, extraction, and analysis procedures have revealed chemistry. With this method paper, we close the missing link by demonstrating how Raman microscopy gives detailed information about chemistry and structure of the native cuticle on the microscale. We introduce an optimized experimental workflow, covering the whole process of sample preparation, Raman imaging experiment, data analysis, and interpretation and show the versatility of the approach on cuticles of a spruce needle, a tomato peel, and an Arabidopsis stem. We include laser polarization experiments to deduce the orientation of molecules and multivariate data analysis to separate cuticle layers and verify their molecular composition. Based on the three investigated cuticles, we discuss the chemical and structural diversity and validate our findings by comparing models based on our spectroscopic data with the current view of the cuticle. We amend the model by adding the distribution of cinnamic acids and flavonoids within the cuticle layers and their transition to the epidermal layer. Raman imaging proves as a non-destructive and fast approach to assess the chemical and structural variability in space and time. It might become a valuable tool to tackle knowledge gaps in plant cuticle research.
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Affiliation(s)
| | | | | | - Notburga Gierlinger
- Department of Nanobiotechnology, Institute of Biophysics, University of Natural Resources and Life Sciences, Vienna, Austria
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16
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The Dynamics of Mycobiota Development in Various Types of Wood Dust Depending on the Dust Storage Conditions. FORESTS 2021. [DOI: 10.3390/f12121786] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Solid or processed wood, and wood waste in particular (dust, shavings, etc.) are the source of a number of health hazards for workers in the wood industry. One of the many negative health effects of exposure to fungi is allergic diseases caused by hypersensitivity reactions. The aim of this study was to investigate the effect of wood species and the degree of dust fragmentation, resulting from processing conditions and storage conditions on the level of wood dust contamination with microscopic fungi during 1 year of storage. An additional aspect of the research was the assessment of the influence of the antioxidant wood bioactive compounds on the development of A. alternata microscopic fungi. It was found that the conditions in which wood dust is stored significantly affect the development of microscopic fungi, especially fungi of the genus Alternaria. The results indicate that temperature is the determining factor, not the relative humidity of the air. The degree of dust fragmentation resulting from the sanding paper grit also has a significant impact on the development of microscopic fungi. Finer dust is more susceptible to the development of microscopic fungi. The antioxidant activity of the wood from which the dust was formed was found to have a significant impact on the development of microscopic fungi. An inverse relationship was observed, indicating the strong activity of antimicrobial substances. Gaining comprehensive knowledge of how all factors affect each other is a key step in understanding the risk and implementing measures to prevent and protect the work environment.
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Extractives of Stemwood and Sawmill Residues of Scots Pine (Pinus sylvestris L.) for Biorefining in Four Climatic Regions in Finland—Phenolic and Resin Acid Compounds. FORESTS 2021. [DOI: 10.3390/f12020192] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This study aimed to identify and quantify phenolic and resin acid extractive compounds in Scots pine stemwood and sawmill residues in four climatic regions of Finland to evaluate their most optimal sources for bio-based chemical biorefining and bioenergy products. The sample consisted of 140 trees from 28 stands, and sawdust lots from 11 log stands. NMR for the overall extractive analysis and HPLC for the quantitative estimation of phenolic and resin acid compounds were employed. Correlation analysis, multivariate factor analysis, principle component analysis and multiple linear regression modelling were applied for statistical analysis. HPLC identified 12 extractive compounds and NMR five more resin acids. Pinosylvin (PS), pinosylvin monomethyl ether (PSMME), and partly neolignans/lignans occurred in the largest concentrations. Wood type caused the most variation, heartwood having larger concentrations than sapwood (sawdust between them). Regional differences in the concentrations were smaller, but factor analysis distinguished the northern and the southern regions into their own groups. The results indicated higher concentrations of PS, PSMME, and vanillic acid in southern regions and those of, e.g., PSMME glycoside, lignan 2, and neolignan 1 in northern regions. The rather low concentrations of extractives in stemwood and sawdust imply value-added products, efficient sorting and/or large raw material volumes.
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