EXTRACTION OF QUERCETIN FROM &lt;i&gt;POLYGONUM HYDROPIPER&lt;/i&gt; L. BY SUBCRITICAL WATER

Lekar, A. V.; Borisenko, S. N.; Vetrova, E. V.; Sushkova, Svetlana; Borisenko, N. I.

doi:10.3844/ajabssp.2014.1.5

Cited by 19 publications

(6 citation statements)

References 15 publications

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“…Soil samples were taken annually and prepared for chemical analysis in accordance with the requirements (GOST, 1986;ISO, 2005). To extract BaP from soil and plant samples, we used the method of extraction with subcritical water (Lekar et al, 2014;. Whole barley plants grown in the control background soil were used as a plant sample.…”

Section: Methodsmentioning

confidence: 99%

“…Polyaromatic hydrocarbons (PAHs) are usually present in water, air, soil, food and living organisms and persist in the environment for a long time (El-Shahawi et al, 2010). PAHs are relatively inert compounds that are resistant to various degradation processes, and therefore it is usually assumed that they are stable in the environment (Liu et al, 2005). Plants are an integral component of terrestrial ecosystems and are exposed to the entire group of pollutants, and almost 45% of all PAHs released into the environment end up in plants (Eisler, 1987;Huang et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Benzo(a)pyrene Uptake by Spring Barley Plants in Model Vegetation Experiment

2020

Biogeosystem Technique

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Polycyclic aromatic hydrocarbons (PAHs) are common environmental pollutants. They are formed by incomplete combustion of organic materials (coal, wood, oil and petroleum products). The most dangerous compound among PAHs is benzo(a)pyrene (BaP), as it is a carcinogen and a class 1 mutagen and must be controlled in all natural environments. The aim of this study was to evaluate the accumulation of BaP in soil and plants under the conditions of a model vegetation experiment. The object of the study was spring barley, which was grown under the conditions of a model vegetation experiment, the soil of which was contaminated with various doses of BaP. The soil of the model experiment was incubated under conditions close to natural on the experimental site of the Southern Federal University (Russia, SFU) for 36 months. PAHs were extracted from soil samples using the ecologically clean express method of subcritical water extraction. The concentration of priority PAHs in soil samples was determined, and the concentration of BaP in the vegetative and root parts of barley plants was also determined. During 3 years of the experiment, there was a decrease in the concentration of PAHs in soil samples. The content of BaP in the soil and its accumulation in barley plants decreased during 3 years from the initial contamination.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Benzo(a)pyrene Uptake by Spring Barley Plants in Model Vegetation Experiment

2020

Biogeosystem Technique

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“…Chemicals: Ketamine (Rotexmedica, Germany), xylazine (Westberg, Netherland), gabapentin (Dr. Abidi Pharmaceutical Co., Iran), and Naloxone (Kaspian Tamin Co., Iran) were purchased. The hydroalcoholic extract of C. cretica was prepared by dissolving it in distilled water at 100 or 300 mg/mL [16].…”

Section: Extract Standardizationmentioning

confidence: 99%

Analgesic Effects of the Cressa Cretica Extract on Induced Neuropathic Pain in Rats, and the Potential Role of Opioid Receptors

Zabihi

Ranjbar

Mosaddegh

et al. 2021

IJT

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Background: Damages to the peripheral fibers of sensory nerve cells and central neurons cause neuropathic pain. Manifestations of neuropathic pain occur in various conditions, including diabetes mellitus, chemotherapy, and as the side effects of some medications. Cressa cretica has long been used in traditional medicine for pain control. This study was conducted to determine the role of opioid receptors in the analgesic effect of the hydroalcoholic extract of C. cretica in an experimental model of neuropathic pain. Methods: The hydroalcoholic extract of C. cretica was prepared, and its total phenolic and flavonoid contents were standardized. Painful peripheral neuropathy was induced in rats by Chronic Constriction Injury (CCI) of the sciatic nerve. To evaluate the effects of the extract, the animals were orally given C. cretica extract (300 mg/kg), gabapentin (70 mg/kg) or normal saline (4 mL/kg) on days 3, 7, 14, and 21 after surgery, and behavioral tests were performed 45 minutes after taking the medications. To evaluate the role of the opioid receptors, Naloxone (1 mg/kg, IP) was given to rats treated with the extract 30 minutes after the extract and then the behavioral tests were performed after 15 minutes. Results: The hydroalcoholic extract of C. cretica attenuates neuropathic pain induced by CCI in rats. The extract works acutely and chronically, depending on the dosage and duration of use. Conclusion: The hydroalcoholic extract of C. cretica reduces CCI-induced neuropathic pain in rats, and Naloxone, as an opioid receptor antagonist, inhibits this effect.

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“…In this context, water and carbon dioxide in the subcritical fluid conditions act as traditional organic solvents, such as methanol, chloroform, and so on 12,13 . The organic and organo‐mineral complex could be extracted from sediments, soil, and plants as a result of using water extraction methods in the sub‑ and supercritical conditions 12,14–16 …”

Section: Introductionmentioning

confidence: 99%

“…12,13 The organic and organo-mineral complex could be extracted from sediments, soil, and plants as a result of using water extraction methods in the sub-and supercritical conditions. 12,[14][15][16] Considering the aforementioned examples and wide range of organic substances and mineral elements available in raw chicken manure, 17 the aim of the research was an assessment of the subcritical water in the processing of fresh chicken manure. Notably, we evaluated subcritical conditions in order to derivatize organic acids, such as humic acid (HA) and fulvic acids (FAs), from raw chicken manure.…”

Section: Introductionmentioning

confidence: 99%

Subcritical water extraction of organic acids from chicken manure

et al. 2020

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BACKGROUND Chicken manure waste has a wide range of organic substances and mineral elements. This enriched source has stimulated great scientific interest in finding cleaner and more environmentally benign nutrient recovery options. This study aimed to determine an effective and eco‐friendly method (i.e. subcritical water extraction) for processing fresh poultry manure. RESULTS The high content of total organic carbon, including humic acids carbon and fulvic acids carbon, in extract was found to release under subcritical conditions. The organic compounds obtained by extraction with subcritical water correspond to humic acid in composition because of the presence in the sample of all the functional groups: polymer bonded by molecular hydrogen bond (3400 cm−1), the presence of CH2 and CH3 groups (2870 cm−1), the presence of carboxyl groups (1720 cm−1) and quinones (1640–1680 cm−1). The solid phase left over was characterized by a high content of organic carbon, phosphorus, potassium, and microelements. The maximum extraction of humic acid and fulvic acid carbon was found between 210 and 250 °C at a pressure of 50–60 atm, and the content was a maximum of 3647.2 × 10−6 g kg−1 at an extraction temperature of 250 °C. CONCLUSION Given the high content of humic acid found in the extracted medium, the proposed subcritical extraction opens up new opportunities for nutrients recovery in the poultry industry. © 2020 Society of Chemical Industry

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EXTRACTION OF QUERCETIN FROM <i>POLYGONUM HYDROPIPER</i> L. BY SUBCRITICAL WATER

Cited by 19 publications

References 15 publications

Benzo(a)pyrene Uptake by Spring Barley Plants in Model Vegetation Experiment

Benzo(a)pyrene Uptake by Spring Barley Plants in Model Vegetation Experiment

Analgesic Effects of the Cressa Cretica Extract on Induced Neuropathic Pain in Rats, and the Potential Role of Opioid Receptors

Subcritical water extraction of organic acids from chicken manure

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