A comparison between pressurized hot water and pressurized liquid extraction for optimizing phenolic and antioxidants capacity of the wooden layer between of walnut seed

Kamali, Hossein; Sani, T. Ahmadzadeh; Mohammadi, Ameneh; Alesheikh, Peiman; Khodaverdi, Elham; Hadizadeh, Farzin

doi:10.1016/j.supflu.2017.10.017

Cited by 20 publications

(12 citation statements)

References 27 publications

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“…The presence of phenolics compounds in coriander plant are associated with a significant antioxidant activity . In addition to food preservation, the importance of the antioxidant content and its beneficial effect on many chronic diseases have been investigated in many scientific studies according to the essential oil content . These compounds vary strongly depending on the cultivar, climatic conditions and geographic position.…”

Section: Introductionmentioning

confidence: 99%

Increase in phenolic compounds of Coriandrum sativum L. after the application of a Bacillus halotolerans biofertilizer

et al. 2020

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BACKGROUND There is an urgent need for a new sustainable way of satisfying the increasing demand for food worldwide. One of the main challenges is replacing chemical fertilizers with biofertilizers, which include plant root‐associated beneficial microorganisms. The present study reports, for the first time, the effects of SCCPVE07 bacterial strain with respect to improving not only plant development, but also the nutritional content and bioactive compounds content of Coriandrum sativum L., one of the most economically important crops, even for plant growth under salinity stress. RESULTS Innoculated coriander plants (C. sativum L.) showed an increase in potassium, carbon, calcium and iron content. A significant improvement in phenolic compounds contents was also observed. The contents of 5‐O‐caffeoylquinic acid, cinnamic acid, 4‐methoxy‐cinnamic acid hexoside, K‐3‐O rutinoside, Q‐3‐O‐rutinoside, Q‐3‐O‐glucoside and Q‐3‐O‐glucuronide were significantly enhanced. Moreover, an efficient bacterial root colonization and a noted growth promotion were demonstrated. Bacterial genome was sequenced and analysed. Gene coding related to Plant growth promotion (PGP) mechanisms and proteins involved in plant defence from salinity or in the metabolism of phenolic compounds, such as quercetin 2,3‐dioxygenase and phenolic acid decarboxylase, were identified. CONCLUSION The results obtained in the present study show, for the first time, the beneficial effects of the inoculation of a bacterial Bacillus halotolerans biofertilizer on coriander crops with respect to increasing the content in bioactive compounds and plant development. © 2020 Society of Chemical Industry

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Section: Introductionmentioning

confidence: 99%

Increase in phenolic compounds of Coriandrum sativum L. after the application of a Bacillus halotolerans biofertilizer

et al. 2020

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“…Where A blank was the absorbance of the blank group, and A sample was the absorbance of each extract. 21…”

Section: Free Radical Scavenging Activity Assaymentioning

confidence: 99%

Antibacterial, antifungal and antioxidant activity of Cleome coluteoides: An In Vitro Comparative Study between Leaves, Stems, and Flowers

Moghaddam¹,

Mohammadi²,

Alesheikh³

et al. 2019

tjps

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Objective: Cleome coluteoides belongs to Capparidaceae family and has been used in folk medicine for a long time. The aim of our research was measuring the antioxidant, antibacterial and antifungal activities of C. coluteoides. Materials and Methods: different parts of plant were extracted by various solvents (ethyl acetate, methanol and dichloromethane). Antibacterial and antifungal activities were assayed by disk and well diffusion methods. The antioxidant activity was screened by DPPH and FRAP methods. Results: The results showed that Gram negative bacteria and fungus were resistant to various plant extracts. Flower extract of C. coluteoides had the highest inhibition effects against all of tested gram positive bacteria. Also, Bacillus cereus was the most sensitive bacteria with inhibition zone of 18 mm. In antioxidant activity assay, different extracts of C. coluteoides exhibited various antioxidant activities due to the physical and chemical properties of solvent. In a way that, methanol extract of leaves showed the highest DPPH radical scavenging activity at various concentrations ranged from 5-160 mg.ml-1. Among all tested extracts, the highest level of phenolics was observed in the methanol extract of flower. Discussion and Conclusion: this study demonstrates that different extracts from various parts of C. coluteoides are different in their properties, so a proper solvent would be used to extract maximum amounts of antioxidant and antibacterial components from a typical plant material.

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“…16,17 In the PAE process, the higher temperature and pressure increases the solubility and diffusion rate of target compounds, and reduces the viscosity and surface tension of the solvent, allowing increased penetration into the samples and thus achieving efficient extraction and remarkable activities over a wide range of polarities of compounds. [18][19][20][21] PWE has been efficiently applied for extracting bioactive substances such as phenolic compounds and polysaccharide from different plants. [22][23][24] Usually, extraction of bioactive substances from plant tissues by PAE is inuenced by multiple independent variables such as extraction temperature, extraction time, extraction pressure, particle size, and liquid-to-sample ratio and their mutual interactions.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the extraction, preliminary characterization, and anti-inflammatory activity of crude polysaccharides from the stems of Trapa quadrispinosa

Feng

Liu²,

et al. 2019

RSC Adv.

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A comparison between pressurized hot water and pressurized liquid extraction for optimizing phenolic and antioxidants capacity of the wooden layer between of walnut seed

Cited by 20 publications

References 27 publications

Increase in phenolic compounds of Coriandrum sativum L. after the application of a Bacillus halotolerans biofertilizer

Increase in phenolic compounds of Coriandrum sativum L. after the application of a Bacillus halotolerans biofertilizer

Antibacterial, antifungal and antioxidant activity of Cleome coluteoides: An In Vitro Comparative Study between Leaves, Stems, and Flowers

Optimization of the extraction, preliminary characterization, and anti-inflammatory activity of crude polysaccharides from the stems of Trapa quadrispinosa

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