Phytotoxic potential of Vitex pseudo-negundo leaf and flower extracts and analysis of phenolic compounds

Haghighi, Tahereh Movahhed; Saharkhiz, Mohammad Jamal

doi:10.1016/j.bcab.2021.102018

Cited by 12 publications

(6 citation statements)

References 89 publications

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“…The analogous effect was informed previously, which fermented sago waste was able to inhibit the growth of dwarf pepper weed species [1]. Bioherbicide active substances were extracted for producing allelopathic substances from various species of vegetation [2,3]. Furthermore, they were tested on Gysophyla sp.…”

Section: Introductionmentioning

confidence: 65%

Thermal hydrolysate of coconut trunk, coir, and shell as bioherbicide

Agusta

Guntoro

Yunindanova

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Biomass of coconut trunk, coir, and shell as lignocellulosic waste was partially hydrolyzed in sub-critical temperature for a relatively short time. The process was implemented in an anaerobic condition which produced predominantly phenolics compounds and other complexes’ organic constituents. Base on previous findings, in which allelopathic effects of growing vegetation were sourced by phenolics compounds, the filtrates of the hydrolysates were tested as bioherbicide on Borreria alata as a broadleaf weed. The testing of the weed growth covered the weed response at pre-emergence, early post-emergence, and post-emergence stages. The hydrolysate solution contained phenolic, carboxylic, and ketone groups with a yield of less than 12 mg/kg feedstock after undergoing the thermal hydrolyzation process at subcritical temperature. At the post-emergence stage, coconut shell hydrolysates were capable to suppress the growth of Borreria alata by 13-40% and cause leaf damage at the level of 43-63%. However, its effectivity was higher at the pre-emergence and the early post-emergence stages, where the suppression capacity of shell hydrolysate on the weed growth reached 84-100%.

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Section: Introductionmentioning

confidence: 65%

Thermal hydrolysate of coconut trunk, coir, and shell as bioherbicide

Agusta

Guntoro

Yunindanova

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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“…For the calibration curve, different concentrations of gallic acid were prepared as ethanolic solutions. The absorbance of the samples and the standard were measured at 750 nm via the spectrophotometer 18 . Regarding total flavonoid content, methanolic extracts were measured for absorbance at 510 nm.…”

Section: Methodsmentioning

confidence: 99%

Evaluation of metabolites in Iranian Licorice accessions under salinity stress and Azotobacter sp. inoculation

Mousavi

Karami

Saharkhiz

et al. 2022

Sci Rep

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Licorice (Glycyrrhiza glabra L.) is an industrial medicinal plant that is potentially threatened by extinction. In this study, the effects of salinity (0 and 200 mM sodium chloride (NaCl)) and Azotobacter inoculation were evaluated on 16 licorice accessions. The results showed that salinity significantly reduced the fresh and dry biomass (FW and DW, respectively) of roots, compared to plants of the control group (a decrease of 15.92% and 17.26%, respectively). As a result of bacterial inoculation, the total sugar content of roots increased by 21.56% when salinity was applied, but increased by 14.01% without salinity. Salinity stress increased the content of glycyrrhizic acid (GA), phenols, and flavonoids in licorice roots by 104.6%, 117.2%, and 56.3%, respectively. Integrated bacterial inoculation and salt stress significantly increased the GA content in the accessions. Bajgah and Sepidan accessions had the highest GA contents (96.26 and 83.17 mg/g DW, respectively), while Eghlid accession had the lowest (41.98 mg/g DW). With the bacterial application, the maximum amounts of glabridin were obtained in Kashmar and Kermanshah accessions (2.04 and 1.98 mg/g DW, respectively). Bajgah and Kashmar accessions had higher amounts of rutin in their aerial parts (6.11 and 9.48 mg/g DW, respectively) when their roots were uninoculated. In conclusion, these results can assist in selecting promising licorice accessions for cultivation in harsh environments.

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“…The phenolic and flavonoid contents also depend on the plant organs [37]. For example, a study reported that the total phenolic content was greater in flowers than in the leaf [38]. In addition, the phenolic content of Tinospora cordifolia in methanolic leaf extract (8.51 mg GAE/g) was lower as compared to the methanolic stem extract (17.48 mg GAE/g) [39].…”

Section: Total Phenolic and Flavonoid Contentsmentioning

confidence: 99%

The Potential of Tinospora cordifolia Extracts as Antibacterial Material against Pseudomonas aeruginosa

Royani

Hanafi²,

Julistiono³

et al. 2022

Trends Sci

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Mitigation and control of bacterial corrosion must have been prioritized for failure anticipation by corrosion associated with microorganisms. Using synthetic inhibitor for material protection from corrosion have problems because it is not eco-friendly. This work conducted preliminary studies on T. cordifolia stem extracts at various methanol ratios against P. aeruginosa biofilm as a new eco-friendly inhibitor. The T. cordifolia stem was extracted by the maceration method with a different ratio of methanol solvent (100, 75 and 50 %). The bacterial activity was assessed using the dilution method (MTT assay) to determine the minimum inhibitory concentration (MIC). The total phenolic and flavonoid contents were determined using Follin-Ciocalteu and aluminum chloride (AlCl3) colorimetric, respectively. Meanwhile, the structure of the active compounds in the extract was identified by using the liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS). The yields of T. cordifolia extracts are 9.45, 7.56 and 8.40 % at 100, 75 and 50 % of methanol ratios, respectively. The total phenolic content (TPC) in crude methanol extract of T. cordifolia is 11.20, 9.46 and 6.56 % for 100, 75 and 50 % of methanol ratios. Meanwhile, the flavonoid content (TFC) was obtained is about 5.25, 0.64 and 0.33 % for 100, 75 and 50 % of methanol concentrations, respectively. The T. cordifolia extract has antibacterial activity against P. aeruginosa in all ratios of methanol concentrations. The minimum inhibitory concentration (MIC) of T. cordifolia methanol extract was found at 4096 µg/mL. Methanol solvent concentration with the most active antibacterial activity of the extract was 50 %, followed by 75 and 100 %. The structures of the active compound in the methanolic extract of T. cordifolia are a phenolic group, and it is in the alkaloid derivatives (Calopiptin, d-Lirioferine (Lirioferine), Moupinamide, Piperanine, and Yuanhunine). HIGHLIGHTS The crude methanol extract of Tinospora cordifolia stem has potential against aeruginosa in the marine environment The minimum inhibitory concentration (MIC) was found at 4096 µg/mL of extract in a ratio of 50:50 (v/v) of methanol to water The compound structures in cordifolia methanol extracts are Calopiptin, d-Lirioferine (Lirioferine), Moupinamide, Piperanine, and Yuanhunine GRAPHICAL ABSTRACT

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Phytotoxic potential of Vitex pseudo-negundo leaf and flower extracts and analysis of phenolic compounds

Cited by 12 publications

References 89 publications

Thermal hydrolysate of coconut trunk, coir, and shell as bioherbicide

Thermal hydrolysate of coconut trunk, coir, and shell as bioherbicide

Evaluation of metabolites in Iranian Licorice accessions under salinity stress and Azotobacter sp. inoculation

The Potential of Tinospora cordifolia Extracts as Antibacterial Material against Pseudomonas aeruginosa

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