scholarly journals Subcritical water extraction as an efficient technique to isolate biologically-active fucoidans from Nizamuddinia zanardinii

2019 ◽  
Vol 128 ◽  
pp. 244-253 ◽  
Author(s):  
Mehdi Alboofetileh ◽  
Masoud Rezaei ◽  
Mehdi Tabarsa ◽  
SangGuan You ◽  
Francesco Mariatti ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Biologically Active ◽  
Water Extraction ◽  
Efficient Technique ◽  
Subcritical Water Extraction ◽  
Nizamuddinia Zanardinii

Subcritical water extraction of biologically active substances from milk thistle seed (Silybum murianum L.)

2010 ◽  
Vol 4 (8) ◽  
pp. 1211-1216 ◽  
Author(s):  
I. A. Platonov ◽  
N. V. Nikitchenko ◽  
L. A. Onuchak ◽  
Yu. I. Arutyunov ◽  
V. A. Kurkin ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Water Extraction ◽  
Milk Thistle ◽  
Subcritical Water Extraction ◽  
Active Substances

scholarly journals The Influence of the Parameters of the Subcritical Water Extraction Process on the Efficiency of Isoflavones Elicitation from Soy Meal

2021 ◽  
Vol 4 (2) ◽  
pp. 299-315
Author(s):  
Valeriy Sukmanov ◽  
Olena Kovalchuk
Keyword(s):  
Subcritical Water ◽  
Biologically Active Substances ◽  
Biologically Active ◽  
Water Extraction ◽  
Raw Material ◽  
Subcritical Water Extraction ◽  
Dry Extract ◽  
Soy Meal ◽  
Extraction Parameters ◽  
Active Substances

Topicality. Incidental products of soy processing (okara, meal, millcake) contain a large amount of protein, and, additionally, other valuable biologically active substances. Among them, isoflavones are of particular researchers’ interest. Subcritical water extraction is a promising method for elicitation biologically active substances from plant raw material. However, such a method of extracting isoflavones, and its rational parameters for soy meal, remain insufficiently investigated. Aim and methods. The aim of this work is to study the influence of parameters (temperature: 120...160°С, duration of extraction: 5...15 min, hydromodule: 1:15...25) of the extracting process of soy meal with subcritical water on the isoflavones content in the dry material of the extract. The empirical research method is applied, using the second-order orthogonal compositional outline for a fractional factor experiment. The samples of soy meal extract are obtained using the experimental setup, based on the high-pressure reactor “RHP-2-500”. The total isoflavones content in the dry extract material is defined in terms of gallic acid with absorption spectrophotometry method. Results. Based on the obtained results, the quadratic interpolation model is constructed. This model links the total isoflavones content in the dry extract material with the extraction parameters. The analysis of the constructed model makes it possible to establish rational measures of extraction parameters. Conclusions and discussion. In this study, the intensive growth of soflavones content in the dry extract with highing the temperature process, and a relatively small influence of the process duration on this indicator, were defined. The influence of the hydromodule is ambiguous. The lowest yield of isoflavones is noted at hydromodule ≈1:21,41. Its increase or decrease lead to the growth of isoflavones content in the extract. In this paper, for the first time, the existence of rational measures of parameters in the process of extracting isoflavones with subcritical water from soy meal is studied and established. The obtained results can be used in the elaboration of the technology for producing isoflavones enriched soy protein concentrate.

SUBCRITICAL WATER EXTRACTION OF ESSENTIAL OILS FROMZATARIA MULTIFLORABOISS

2009 ◽  
Vol 32 (6) ◽  
pp. 804-816 ◽  
Author(s):  
M. KHAJENOORI ◽  
A. HAGHIGHI ASL ◽  
F. HORMOZI ◽  
M.H. EIKANI ◽  
H. NOORI BIDGOLI
Keyword(s):  
Essential Oils ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction

Optimization of subcritical water extraction of phenolic antioxidants from pomegranate (Punica granatum L.) peel by response surface methodology

2017 ◽  
Vol 9 (32) ◽  
pp. 4647-4656 ◽  
Author(s):  
Linlin Yan ◽  
Yungang Cao ◽  
Guangyao Zheng
Keyword(s):  
Response Surface Methodology ◽  
Subcritical Water ◽  
Punica Granatum ◽  
Water Extraction ◽  
Phenolic Antioxidants ◽  
Subcritical Water Extraction ◽  
Extraction Technology ◽  
Pomegranate Peel ◽  
Efficient Extraction ◽  
Punica Granatum L

Subcritical water extraction (SWE), a ‘green’ and efficient extraction technology, was applied to extract phenolic antioxidants from pomegranate peel in this study.

scholarly journals Structural Changes in Milled Wood Lignin (MWL) of Chinese Quince (Chaenomeles sinensis) Fruit Subjected to Subcritical Water Treatment

Molecules ◽  
2021 ◽  
Vol 26 (2) ◽  
pp. 398
Author(s):  
Wen-Yue Wang ◽  
Zhao Qin ◽  
Hua-Min Liu ◽  
Xue-De Wang ◽  
Jing-Hao Gao ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Water Treatment ◽  
Quantum Coherence ◽  
Structural Changes ◽  
31P Nmr ◽  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Milled Wood Lignin ◽  
Chinese Quince

Subcritical water treatment has received considerable attention due to its cost effectiveness and environmentally friendly properties. In this investigation, Chinese quince fruits were submitted to subcritical water treatment (130, 150, and 170 °C), and the influence of treatments on the structure of milled wood lignin (MWL) was evaluated. Structural properties of these lignin samples (UL, L130, L150, and L170) were investigated by high-performance anion exchange chromatography (HPAEC), FT-IR, gel permeation chromatography (GPC), TGA, pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS), 2D-Heteronculear Single Quantum Coherence (HSQC) -NMR, and 31P-NMR. The carbohydrate analysis showed that xylose in the samples increased significantly with higher temperature, and according to molecular weight and thermal analysis, the MWLs of the pretreated residues have higher thermal stability with increased molecular weight. The spectra of 2D-NMR and 31P-NMR demonstrated that the chemical linkages in the MWLs were mainly β-O-4′ ether bonds, β-5′ and β-β′, and the units were principally G- S- H- type with small amounts of ferulic acids; these results are consistent with the results of Py-GC/MS analysis. It is believed that understanding the structural changes in MWL caused by subcritical water treatment will contribute to understanding the mechanism of subcritical water extraction, which in turn will provide a theoretical basis for developing the technology of subcritical water extraction.

Subcritical water extraction of fucoidan from Saccharina japonica: optimization, characterization and biological studies

2017 ◽  
Vol 30 (1) ◽  
pp. 579-590 ◽  
Author(s):  
Periaswamy Sivagnanam Saravana ◽  
Adane Tilahun ◽  
Collin Gerenew ◽  
Vo Dinh Tri ◽  
Nan Hee Kim ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Saccharina Japonica ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Biological Studies

High performance curcumin subcritical water extraction from turmeric (Curcuma longa L.)

2016 ◽  
Vol 1022 ◽  
pp. 191-198 ◽  
Author(s):  
Mohammad Valizadeh Kiamahalleh ◽  
Ghasem Najafpour-Darzi ◽  
Mostafa Rahimnejad ◽  
Ali Akbar Moghadamnia ◽  
Meisam Valizadeh Kiamahalleh
Keyword(s):  
High Performance ◽  
Subcritical Water ◽  
Curcuma Longa ◽  
Water Extraction ◽  
Subcritical Water Extraction

Influence of temperature on the subcritical water extraction of Actinidia arguta leaves: A screening of pro-healthy compounds

2022 ◽  
Vol 25 ◽  
pp. 100593
Author(s):  
Ana Margarida Silva ◽  
Ana Sofia Luís ◽  
Manuela M. Moreira ◽  
Ricardo Ferraz ◽  
Tanja Brezo-Borjan ◽  
...  
Keyword(s):  
Subcritical Water ◽  
Water Extraction ◽  
Subcritical Water Extraction ◽  
Influence Of Temperature ◽  
Actinidia Arguta ◽  
Influence Of Temperature On
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