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Pavlović NV, Mladenović J, Stevović V, Bošković-Rakočević L, Moravčević Đ, Poštić D, Zdravković J. VITAMIN C, TOTAL PHENOLS AND ANTIOXIDATIVE ACTIVITY OF ORGANICALLY GROWN RED BEETROOT (BETA VULGARIS SSP. RUBRA) AND EFFECT OF PROCESSING. ffr 2021. [DOI: 10.5937/ffr0-31354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The demand for organic food is rising since consumers want food from reliable, highest quality sources originating from the environment, undisturbed by cultivation and processing. It is necessary to determine to what extent there is a scientific basis for the claims that organic food is of high quality. In this study, beetroot from an organic production system originating from 6 certified organic food producers from different geographic locations was examined. The organic beetroot samples were processed by pasteurization at 700 C and 900 C into beet juice or by drying at 550 C. The following samples were tested and compared: fresh beetroot, pasteurized beet juice and dried beetroot slices. The concentration of vitamin C, level of total phenol compounds (TPC) and antioxidative activity (TAA) in beetroot were influenced by the geographic origin and the applied processing method. The highest degradation for all analysed parameters was found in the samples treated by drying or pasteurisation at 90ºC. The lowest losses of studied phytochemical components were observed during juice pasteurisation at 700C. The correlation coefficient between TPC and TAA was high and significant (r2 = 0.966).
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Poštić D, Štrbanović R, Tabaković M, Popović T, Ćirić A, Banjac N, Trkulja N, Stanisavljević R. Germination and the Initial Seedling Growth of Lettuce, Celeriac and Wheat Cultivars after Micronutrient and a Biological Application Pre-Sowing Seed Treatment. Plants (Basel) 2021; 10:plants10091913. [PMID: 34579445 PMCID: PMC8466355 DOI: 10.3390/plants10091913] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/02/2021] [Accepted: 09/09/2021] [Indexed: 11/16/2022]
Abstract
Seed treatments with zinc, boron, biostimulant Coveron and MIX (zinc + boron + Coveron) were applied to three lettuce and three celeriac cultivars. Seeds of three wheat cultivars were treated under laboratory conditions with Trichoderma harzianum and eight Bacillus spp. Seed germination, seedling growth, and the presence of the following pathogens were determined: Fusarium sp., Alternaria sp., Penicillium sp., and Mucor sp. The Coveron treatment was the most effective on lettuce seeds tested in the germination cabinet. Seed germination was higher by 4% than in the control. Alternatively, germination of seeds treated with boron in the greenhouse was higher by 12% than in the control. The Coveron treatment had the highest effect on the shoot length, which was greater by 0.7 and 2.1 cm in the germination cabinet and the greenhouse, respectively. This treatment was also the most effective on the root length. Zn, B, and MIX treatments increased celeriac seed germination by 14% in the germination cabinet. The Zn treatment was the most efficient on seeds tested in the greenhouse. The germination was higher by 15%. A significant cultivar × treatment interaction was determined in both observed species under both conditions. The maximum effect on wheat seed germination (8%) was achieved with the T. harzianum treatment in the Salazar cultivar. A significant interdependence (p ≤ 0.01 to p ≤ 0.001) was established between seed germination and the seedling growth. The interrelationship between seed germination and pathogens of all cultivars was negative.
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Affiliation(s)
- Dobrivoj Poštić
- Institute for Plant Protection and Environment, 11040 Belgrade, Serbia; (D.P.); (R.Š.); (T.P.); (N.T.)
| | - Ratibor Štrbanović
- Institute for Plant Protection and Environment, 11040 Belgrade, Serbia; (D.P.); (R.Š.); (T.P.); (N.T.)
| | | | - Tatjana Popović
- Institute for Plant Protection and Environment, 11040 Belgrade, Serbia; (D.P.); (R.Š.); (T.P.); (N.T.)
| | - Ana Ćirić
- Institute for Biological Research Siniša Stanković—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.Ć.); (N.B.)
| | - Nevena Banjac
- Institute for Biological Research Siniša Stanković—National Institute of the Republic of Serbia, University of Belgrade, 11000 Belgrade, Serbia; (A.Ć.); (N.B.)
| | - Nenad Trkulja
- Institute for Plant Protection and Environment, 11040 Belgrade, Serbia; (D.P.); (R.Š.); (T.P.); (N.T.)
| | - Rade Stanisavljević
- Institute for Plant Protection and Environment, 11040 Belgrade, Serbia; (D.P.); (R.Š.); (T.P.); (N.T.)
- Correspondence:
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Marković S, Stanković S, Jelušić A, Iličić R, Kosovac A, Poštić D, Popović T. Occurrence and Identification of Pectobacterium carotovorum subsp. brasiliensis and Dickeya dianthicola Causing Blackleg in Some Potato Fields in Serbia. Plant Dis 2021; 105:1080-1090. [PMID: 32840436 DOI: 10.1094/pdis-05-20-1076-re] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Blackleg outbreaks were noticed on three fields (about 100 ha total) in 2 consecutive years (2018, 2019) in one of the main potato growing areas in Serbia (Bačka region, Vojvodina). The percentage of infected plants reached 40 to 70%, with 10.5 to 44.7% yield reductions. From the three fields, out of 90 samples Pectobacterium carotovorum subsp. brasiliensis was most frequently identified and diagnosed as causal agent of potato blackleg in Serbia for the first time (29 isolates). Dickeya dianthicola was a less frequently causative bacterium, which was also noticed for the first time (nine isolates). A total of 38 isolates were characterized based on their phenotypic and genetic features, including a pathogenicity test on potato. The repetitive element PCR (rep-PCR) using BOX, REP, and ERIC primer pairs differentiated five genetic profiles among 38 tested isolates. Multilocus sequence analysis (MLSA) of four housekeeping genes, acnA, gapA, icdA, and mdh, revealed the presence of three so far unknown P. c. subsp. brasiliensis multilocus genotypes and confirmed clustering into two main genetic clades as determined in other studies. MLSA also revealed the presence of a new genotype of D. dianthicola in Serbia.
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Affiliation(s)
- Sanja Marković
- University of Belgrade, Institute for Multidisciplinary Research, Belgrade 11030, Serbia
| | | | - Aleksandra Jelušić
- University of Belgrade, Institute for Multidisciplinary Research, Belgrade 11030, Serbia
| | - Renata Iličić
- University of Novi Sad, Faculty of Agriculture, Novi Sad 21000, Serbia
| | - Andrea Kosovac
- Institute for Plant Protection and Environment, Belgrade 11040, Serbia
| | - Dobrivoj Poštić
- Institute for Plant Protection and Environment, Belgrade 11040, Serbia
| | - Tatjana Popović
- Institute for Plant Protection and Environment, Belgrade 11040, Serbia
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Pavlović N, Mladenović J, Stevović V, Bošković-Rakočević L, Moravčević Đ, Poštić D, Zdravković J. Effect of processing on vitamin C content, total phenols and antioxidative activity of organically grown red beetroot ('Beta vulgaris' ssp. 'Rubra'). Food & Feed Res 2021. [DOI: 10.5937/ffr48-31354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
The demand for organic food is rising since consumers want food from reliable, highest quality sources originating from the environment, undisturbed by cultivation and processing. It is necessary to determine to what extent there is a scientific basis for the claims that organic food is of high quality. In this study, beetroot from an organic production system originating from 6 certified organic food producers from different geographic locations was examined. The organic beetroot samples were processed by pasteurization at 70 ºC and 90 ºC into beet juice or by drying at 55 ºC. The following samples were tested and compared: fresh beetroot, pasteurized beet juice and dried beetroot slices. The concentration of vitamin C, level of total phenol compounds (TPC) and antioxidative activity (TAA) in beetroot were influenced by the geographic origin and the applied processing method. The highest degradation for all analysed parameters was found in the samples treated by drying or pasteurisation at 90 ºC. The lowest losses of studied phytochemical components were observed during juice pasteurisation at 70 ºC. The correlation coefficient between TPC and TAA was high and significant (r2 = 0.966).
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Popović T, Jelušić A, Dimkić I, Stanković S, Poštić D, Aleksić G, Veljović Jovanović S. Molecular Characterization of Pseudomonas syringae pv. coriandricola and Biochemical Changes Attributable to the Pathological Response on Its Hosts Carrot, Parsley, and Parsnip. Plant Dis 2019; 103:3072-3082. [PMID: 31596690 DOI: 10.1094/pdis-03-19-0674-re] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Bacterial leaf spot caused by the plant pathogenic bacterium Pseudomonas syringae pv. coriandricola (Psc) was observed on carrot, parsnip, and parsley grown on a vegetable farm in the Vojvodina Province of Serbia. Nonfluorescent bacterial colonies were isolated from diseased leaves and characterized using different molecular techniques. Repetitive element PCR fingerprinting with five oligonucleotide primers (BOX, ERIC, GTG5, REP, and SERE) and the randomly amplified polymorphic DNA-PCR with the M13 primer revealed identical fingerprint patterns for all tested strains. Multilocus sequence analysis of four housekeeping genes (gapA, gltA, gyrB, and rpoD) showed a high degree (99.8 to 100%) of homology with sequences of Psc strains deposited in the Plant-Associated Microbes Database and NCBI database. The tested strains caused bacterial leaf spot symptoms on all three host plants. Host-strain specificity was not found in cross-pathogenicity tests, but the plant response (peroxidase induction and chlorophyll bleaching) was more pronounced in carrot and parsley than in parsnip.
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Affiliation(s)
- Tatjana Popović
- Institute for Plant Protection and Environment, Belgrade, Serbia
| | - Aleksandra Jelušić
- Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Ivica Dimkić
- Faculty of Biology, University of Belgrade, Belgrade, Serbia
| | | | - Dobrivoj Poštić
- Institute for Plant Protection and Environment, Belgrade, Serbia
| | - Goran Aleksić
- Institute for Plant Protection and Environment, Belgrade, Serbia
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Stanojković-Sebić A, Maksimović J, Dinić Z, Poštić D, Ilićić R, Stanojković A. Microelements and Heavy Metals Content in Frequently Utilized Medicinal Plants Collected from the Power Plant Area. Nat Prod Commun 2017; 12:185-188. [PMID: 30428207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
The effectiveness of medicinal plants is mainly associated with their active constituents, but one of the major quality problems frequently encountered is their high trace metals content that can be associated to extensive pollution of the environment where medicinal plants grow. Therefore the aim of this research was to evaluate the content of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn and As in selected and frequently used medicinal plants, including chicory, broadleaf, common comfrey and dandelion. The plant material was collected from their wild habitats in the area of highly developed power plant activity during the summer of 2015. Plant analyses were done according to ICP methodology, using ICAP 6300 ICP optical emission spectrometer. The obtained results showed that the content of As, Cd, Co, Mn, Ni and Zn in the investigated medicinal plant species was below the maximum permissible concentration, while in all parts of all studied plants the concentration of Cr was toxic. The toxic concentrations of Cu were determined in root and aerial parts of chicory and common comfrey, and the toxic concentrations of Fe in root and aerial parts of dandelion and broadleaf plantain, and in aerial parts of common comfrey. However, high but not toxic content of Pb was found in aerial parts of chicory. It can be concluded that medicinal plants from the studied growing site are not appropriate for use in alternative medicine and that a determination of trace metals content in these plants must become a standard criterion for evaluation of their quality.
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Stanojković-Sebić A, Maksimović J, Dinić Z, Poštić D, Iličić R, Stanojković A, Pivić R. Microelements and Heavy Metals Content in Frequently Utilized Medicinal Plants Collected from the Power Plant Area. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The effectiveness of medicinal plants is mainly associated with their active constituents, but one of the major quality problems frequently encountered is their high trace metals content that can be associated to extensive pollution of the environment where medicinal plants grow. Therefore the aim of this research was to evaluate the content of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn and As in selected and frequently used medicinal plants, including chicory, broadleaf, common comfrey and dandelion. The plant material was collected from their wild habitats in the area of highly developed power plant activity during the summer of 2015. Plant analyses were done according to ICP methodology, using ICAP 6300 ICP optical emission spectrometer. The obtained results showed that the content of As, Cd, Co, Mn, Ni and Zn in the investigated medicinal plant species was below the maximum permissible concentration, while in all parts of all studied plants the concentration of Cr was toxic. The toxic concentrations of Cu were determined in root and aerial parts of chicory and common comfrey, and the toxic concentrations of Fe in root and aerial parts of dandelion and broadleaf plantain, and in aerial parts of common comfrey. However, high but not toxic content of Pb was found in aerial parts of chicory. It can be concluded that medicinal plants from the studied growing site are not appropriate for use in alternative medicine and that a determination of trace metals content in these plants must become a standard criterion for evaluation of their quality.
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Affiliation(s)
| | - Jelena Maksimović
- Department for Soil Reclamation, Institute of Soil Science, 11000 Belgrade, Serbia
| | - Zoran Dinić
- Department for Soil Reclamation, Institute of Soil Science, 11000 Belgrade, Serbia
| | - Dobrivoj Poštić
- Institute for Plant Protection and Environment, 11000 Belgrade, Serbia
| | - Renata Iličić
- Faculty of Agriculture, University of Novi Sad, 21000 Novi Sad, Serbia
| | | | - Radmila Pivić
- Department for Soil Reclamation, Institute of Soil Science, 11000 Belgrade, Serbia
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