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Papaefthimiou M, Kontou PI, Bagos PG, Braliou GG. Integration of Antioxidant Activity Assays Data of Stevia Leaf Extracts: A Systematic Review and Meta-Analysis. Antioxidants (Basel) 2024; 13:692. [PMID: 38929131 PMCID: PMC11201069 DOI: 10.3390/antiox13060692] [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: 03/28/2024] [Revised: 05/22/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Stevia rebaudiana Bertoni, a no-calorie natural sweetener, contains a plethora of polyphenols that exert antioxidant properties with potential medicinal significance. Due to the variety of functional groups, polyphenols exhibit varying solubility depending on the nature of the extraction solvents (water, organic, or their mixtures, defined further on as hydroalcoholic extracts). In the present study, we performed a systematic review, following PRISMA guidelines, and meta-analysis, synthesizing all available data from 45 articles encompassing 250 different studies. Our results showed that the total phenolic content (TPC) of hydroalcoholic and aqueous extracts presents higher values (64.77 and 63.73 mg GAE/g) compared to organic extracts (33.39). Total flavonoid content (TFC) was also higher in aqueous and hydroalcoholic extracts; meta-regression analysis revealed that outcomes in different measuring units (mg QE/g, mg CE/g, and mg RUE/g) do not present statistically significant differences and can be synthesized in meta-analysis. Using meta-regression analysis, we showed that outcomes from the chemical-based ABTS, FRAP, and ORAC antioxidant assays for the same extract type can be combined in meta-analysis because they do not differ statistically significantly. Meta-analysis of ABTS, FRAP, and ORAC assays outcomes revealed that the antioxidant activity profile of various extract types follows that of their phenolic and flavonoid content. Using regression meta-analysis, we also presented that outcomes from SOD, CAT, and POX enzymatic antioxidant assays are independent of the assay type (p-value = 0.905) and can be combined. Our study constitutes the first effort to quantitatively and statistically synthesize the research results of individual studies using all methods measuring the antioxidant activity of stevia leaf extracts. Our results, in light of evidence-based practice, uncover the need for a broadly accepted, unified, methodological strategy to perform antioxidant tests, and offer documentation that the use of ethanol:water 1:1 mixtures or pure water can more efficiently extract stevia antioxidant compounds.
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Affiliation(s)
- Maria Papaefthimiou
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece; (M.P.); (P.G.B.)
| | | | - Pantelis G. Bagos
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece; (M.P.); (P.G.B.)
| | - Georgia G. Braliou
- Department of Computer Science and Biomedical Informatics, University of Thessaly, 35131 Lamia, Greece; (M.P.); (P.G.B.)
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Konchekov EM, Gusein-zade N, Burmistrov DE, Kolik LV, Dorokhov AS, Izmailov AY, Shokri B, Gudkov SV. Advancements in Plasma Agriculture: A Review of Recent Studies. Int J Mol Sci 2023; 24:15093. [PMID: 37894773 PMCID: PMC10606361 DOI: 10.3390/ijms242015093] [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: 08/31/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/29/2023] Open
Abstract
This review is devoted to a topic of high interest in recent times-the use of plasma technologies in agriculture. The increased attention to these studies is primarily due to the demand for the intensification of food production and, at the same time, the request to reduce the use of pesticides. We analyzed publications, focusing on research conducted in the last 3 years, to identify the main achievements of plasma agrotechnologies and key obstacles to their widespread implementation in practice. We considered the main types of plasma sources used in this area, their advantages and limitations, which determine the areas of application. We also considered the use of plasma-activated liquids and the efficiency of their production by various types of plasma sources.
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Affiliation(s)
- Evgeny M. Konchekov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (N.G.-z.); (D.E.B.); (L.V.K.); (S.V.G.)
| | - Namik Gusein-zade
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (N.G.-z.); (D.E.B.); (L.V.K.); (S.V.G.)
| | - Dmitriy E. Burmistrov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (N.G.-z.); (D.E.B.); (L.V.K.); (S.V.G.)
| | - Leonid V. Kolik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (N.G.-z.); (D.E.B.); (L.V.K.); (S.V.G.)
| | - Alexey S. Dorokhov
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.S.D.)
| | - Andrey Yu. Izmailov
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.S.D.)
| | - Babak Shokri
- Physics Department, Shahid Beheshti University, Tehran 1983969411, Iran
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (N.G.-z.); (D.E.B.); (L.V.K.); (S.V.G.)
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Judickaitė A, Venckus J, Koga K, Shiratani M, Mildažienė V, Žūkienė R. Cold Plasma-Induced Changes in Stevia rebaudiana Morphometric and Biochemical Parameter Correlations. PLANTS (BASEL, SWITZERLAND) 2023; 12:1585. [PMID: 37111809 PMCID: PMC10145628 DOI: 10.3390/plants12081585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 03/27/2023] [Accepted: 04/04/2023] [Indexed: 06/19/2023]
Abstract
Stevia rebaudiana Bertoni is an economically important source of natural low-calorie sweeteners, steviol glycosides (SGs), with stevioside (Stev) and rebaudioside A (RebA) being the most abundant. Pre-sowing seed treatment with cold plasma (CP) was shown to stimulate SGs biosynthesis/accumulation up to several fold. This study aimed to evaluate the possibility to predict CP-induced biochemical changes in plants from morphometric parameters. Principle component analysis (PCA) was applied to two different sets of data: morphometric parameters versus SGs concentrations and ratio, and morphometric parameters versus other secondary metabolites (total phenolic content (TPC), total flavonoid content (TFC)) and antioxidant activity (AA). Seeds were treated for 2, 5 and 7 min with CP (CP2, CP5 and CP7 groups) before sowing. CP treatment stimulated SGs production. CP5 induced the highest increase of RebA, Stev and RebA+Stev concentrations (2.5-, 1.6-, and 1.8-fold, respectively). CP did not affect TPC, TFC or AA and had a duration-dependent tendency to decrease leaf dry mass and plant height. The correlation analysis of individual plant traits revealed that at least one morphometric parameter negatively correlates with Stev orRebA+Stev concentration after CP treatment.
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Affiliation(s)
- Augustė Judickaitė
- Faculty of Natural Sciences, Vytautas Magnus University, Kaunas 44248, Lithuania
| | - Justinas Venckus
- Faculty of Natural Sciences, Vytautas Magnus University, Kaunas 44248, Lithuania
| | - Kazunori Koga
- Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
- Center for Novel Science Initiatives, National Institutes of Natural Sciences, Tokyo 105-0001, Japan
| | - Masaharu Shiratani
- Faculty of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, Japan
| | - Vida Mildažienė
- Faculty of Natural Sciences, Vytautas Magnus University, Kaunas 44248, Lithuania
| | - Rasa Žūkienė
- Faculty of Natural Sciences, Vytautas Magnus University, Kaunas 44248, Lithuania
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Darigh F, Iranbakhsh A, Oraghi Ardebili Z, Ebadi M. Non-thermal plasma improved callogenesis performance and elicited the production of cannabinoids by modifying DNA methylome, expression of WRKY1 and ERF1B transcription factors, and expression of genes that contributed to the biosynthesis of cannabinoids. PROTOPLASMA 2023; 260:159-170. [PMID: 35503387 DOI: 10.1007/s00709-022-01769-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/25/2022] [Indexed: 05/09/2023]
Abstract
The current decade has witnessed notable advancement towards the utilization of non-thermal (cold) plasma in multidisciplinary fields such as plant sciences. This study intends to validate whether cold plasma contributes to improving callogenesis performance and eliciting the production of cannabinoids in cannabis. The cannabis-derived calli were treated with plasma at different exposure times, including 0, 60, 120, and 180 s. The plasma priming improved the callogenesis performance and callus biomass by an average of 46.6%. The molecular assessment (MSAP method) validated how the plasma priming is epigenetically associated with variation in DNA methylome in the cannabis calli. The cold plasma treatments transcriptionally upregulated the expression of WRKY1 and ERF1B transcription factors by averages of 3.5- and 3.8-fold. The plasma treatment also stimulated the transcription of OLS, OAC, CBGAS, CBDAS, and THCAS genes involved in the biosynthesis of cannabinoids. The HPLC assessment proved the high potency of cold plasma to enhance the synthesis of cannabinoids, including Cannabigerol (CBG), Cannabidiol (CBD), and cannabinol (CBN). The plasma-primed calli contained higher concentrations of proteins (56%), proline (38%), and soluble phenols (40%). The activities of peroxidase and catalase enzymes showed a similar upward trend in response to the plasma. The profound increase in the concentrations of soluble sugars resulted from the plasma treatments. The plasma priming of calli contributed to the significant upregulation in the activity of the phenylalanine ammonia-lyase enzyme. This biological assessment study validates the high potency of plasma priming to elicit the biosynthesis of cannabinoids in cannabis calli.
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Affiliation(s)
- Farzaneh Darigh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Alireza Iranbakhsh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | | | - Mostafa Ebadi
- Department of Biology, Damghan Branch, Islamic Azad University, Damghan, Iran
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Development of an Environmentally Friendly Technology for the Treatment of Aqueous Solutions with High-Purity Plasma for the Cultivation of Cotton, Wheat and Strawberries. CHEMENGINEERING 2022. [DOI: 10.3390/chemengineering6060091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The microwave setup for obtaining plasma-activated water (PAW) has been created. PAW contains significant concentrations of H2O2 and NO3−, has a reduced content of O2, high conductivity, a high redox potential and low pH. Likewise, the specific electrical conductivity and concentration of H2O2 and NO3− linearly depend on the treatment time. These parameters are simple and convenient markers for controlling the preparation of PAW. It has been established that PAW solutions with a concentration of 0.5–1.0% increase the germination energy, protect against fusarium and hyperthermia in cotton, wheat and strawberry seeds. In addition, PAWs have a positive effect on the growth rate of plants in the early stages of development. The use of PAW provides significant benefits over the chemical preparations Dalbron and Bakhor, so-called seed germination stimulators (SDS).
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Konchekov EM, Kolik LV, Danilejko YK, Belov SV, Artem’ev KV, Astashev ME, Pavlik TI, Lukanin VI, Kutyrev AI, Smirnov IG, Gudkov SV. Enhancement of the Plant Grafting Technique with Dielectric Barrier Discharge Cold Atmospheric Plasma and Plasma-Treated Solution. PLANTS 2022; 11:plants11101373. [PMID: 35631800 PMCID: PMC9146419 DOI: 10.3390/plants11101373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 05/20/2022] [Accepted: 05/20/2022] [Indexed: 11/16/2022]
Abstract
A garden plant grafting technique enhanced by cold plasma (CAP) and plasma-treated solutions (PTS) is described for the first time. It has been shown that CAP created by a dielectric barrier discharge (DBD) and PTS makes it possible to increase the growth of Pyrus communis L. by 35–44%, and the diameter of the root collar by 10–28%. In this case, the electrical resistivity of the graft decreased by 20–48%, which indicated the formation of a more developed vascular system at the rootstock–scion interface. The characteristics of DBD CAP and PTS are described in detail.
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Affiliation(s)
- Evgeny M. Konchekov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
- Correspondence:
| | - Leonid V. Kolik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Yury K. Danilejko
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Sergey V. Belov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Konstantin V. Artem’ev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Maxim E. Astashev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Tatiana I. Pavlik
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Vladimir I. Lukanin
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
| | - Alexey I. Kutyrev
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.I.K.); (I.G.S.)
| | - Igor G. Smirnov
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.I.K.); (I.G.S.)
| | - Sergey V. Gudkov
- Prokhorov General Physics Institute of the Russian Academy of Sciences, 119991 Moscow, Russia; (L.V.K.); (Y.K.D.); (S.V.B.); (K.V.A.); (M.E.A.); (T.I.P.); (V.I.L.); (S.V.G.)
- Federal Scientific Agroengineering Center VIM, 109428 Moscow, Russia; (A.I.K.); (I.G.S.)
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Effects of Non-Thermal Plasma Treatment on Plant Physiological and Biochemical Processes. PLANTS 2022; 11:plants11081018. [PMID: 35448746 PMCID: PMC9027939 DOI: 10.3390/plants11081018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 04/06/2022] [Indexed: 11/17/2022]
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