1
|
Lu Y, Liu Y, Che F, Gao M, Li A, Wei Y. Optimisation of isolation of polyphenols from Malus pumila Mill. Leaves by high-speed countercurrent chromatography using response surface methodology. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1243:124230. [PMID: 38981203 DOI: 10.1016/j.jchromb.2024.124230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 06/15/2024] [Accepted: 07/01/2024] [Indexed: 07/11/2024]
Abstract
Considering comprehensive utilization of natural products, isolation and activity determination processes of bioactive compounds are essential. In this study, a combined high-speed countercurrent chromatography (HSCCC) with preparative HPLC method was developed to isolate the five antioxidant polyphenols from 75% ethanol extract of Malus pumila Mill. leaves. The HSCCC conditions were optimized by response surface methodology (RSM) considering two response indexes including retention of stationary phase and analysis time. The optimal HSCCC conditions were flow rate of 2.11 mL/min, revolution speed of 717 rpm, and temperature of 25℃, with a solvent system of ethyl acetate/methanol/water (10:1:10, v/v/v). The unseparated fractions obtained from HSCCC were subjected to preparative HPLC for further isolation. As a result, phloridzin (15.3 mg), isoquercitrin (2.1 mg), quercetin 3-O-xyloside (1.9 mg), quercetin-3-O-arabinoside (4.0 mg), and quercitrin (2.0 mg) were isolated from 200.0 mg extracts. The purities of these compounds were all above 92%. Their chemical structures were identified by mass spectrometer and nuclear magnetic resonance. The five isolated compounds were further investigated for their rat hippocampal neuroprotective effects against hydrogen peroxide-induced oxidative stress. No cytotoxicity was observed in all tested concentrations. While all five compounds except phloridzin showed significantly neurogenic activities and neuroprotective effects, especially at the concentration of 0.5 mg/L. These results demonstrate that RSM is a suitable technique for optimisation of HSCCC and the isolated polyphenols can be used as antioxidants in pharmaceutical and food products.
Collapse
Affiliation(s)
- Yanzhen Lu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China; Department of Chemistry and Pharmaceutical Engineering, Hefei Normal University, Hefei, Anhui 230601, China
| | - Yuanyuan Liu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Fenfang Che
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Mengyao Gao
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Aoxin Li
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yun Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
| |
Collapse
|
2
|
Li L, Zhao J, Yang T, Sun B. High-speed countercurrent chromatography as an efficient technique for large separation of plant polyphenols: a review. Food Res Int 2022; 153:110956. [DOI: 10.1016/j.foodres.2022.110956] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 01/13/2022] [Accepted: 01/21/2022] [Indexed: 12/19/2022]
|
3
|
Wang N, Pei D, Liu Y, Wei J, Huang X, Di D. Preparation of highly purified oleuropein by combinative technology off line of HSCCC-PHPLC based on dual wavelength. J Food Sci 2021; 86:4457-4465. [PMID: 34519046 DOI: 10.1111/1750-3841.15903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 07/18/2021] [Accepted: 08/12/2021] [Indexed: 11/30/2022]
Abstract
Oleuropein is the main active substance in foods or functional foods produced from olive (Olea europaea L.) leaves. In the present study, the combinative technology off line of HSCCC-PHPLC based on dual wavelength was used to separate highly purified oleuropein from oleuropein extract. Response surface methodology was used to optimize the conditions of HSCCC. Furthermore, a large amount of higher purified oleuropein was obtained through HSCCC at the wavelength of 254 nm, and oleuropein with the purity greater than 98.5% was obtained by PHPLC at the wavelength of 300 nm. Finally, the purity and structure identification of highly purified oleuropein were determined by various methods and its stability was investigated. As a result, oleuropein was stable in solution, and had good stability under the condition of dark storage at 4°C within a week or under the condition of dark storage at -20°C within one year. PRACTICAL APPLICATION: In this study, an efficient method for purification and refining of oleuropein by combinative technology off line of HSCCC-PHPLC based on dual wavelength was established. Oleuropein with the purity greater than 98.5% was macro-obtained via the technology. The highly purified oleuropein could be used to control the quality of olive products.
Collapse
Affiliation(s)
- Ningli Wang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Dong Pei
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Yewei Liu
- Institute of Nutrition and Food Hygiene, School of Public Health, Lanzhou University, Lanzhou, Gansu, P. R. China
| | - Jianteng Wei
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Xinyi Huang
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| | - Duolong Di
- CAS Key Laboratory of Chemistry of Northwestern Plant Resources and Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, Gansu, P. R. China.,Qingdao Center of Resource Chemistry & New Materials, Qingdao, Shandong, P. R. China
| |
Collapse
|
4
|
Yang J, Dong X, Zhen XT, Chen Y, Zheng H, Ye LH, Liu FM, Cao J. Rapid analysis and identification of flavonoid and organic acid metabolites in Hawthorn using an on-line flow injection assisted electrochemical microreactor combined with quadrupole time-of-flight tandem mass spectrometry. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
5
|
Jimenez-Lopez C, Fraga-Corral M, Carpena M, García-Oliveira P, Echave J, Pereira AG, Lourenço-Lopes C, Prieto MA, Simal-Gandara J. Agriculture waste valorisation as a source of antioxidant phenolic compounds within a circular and sustainable bioeconomy. Food Funct 2020; 11:4853-4877. [DOI: 10.1039/d0fo00937g] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Agro-food industrial waste is currently being accumulated, pushing scientists to find recovery strategies to obtain bioactive compounds within a circular bioeconomy. Target phenolic compounds have shown market potential by means of optimization extraction techniques.
Collapse
Affiliation(s)
- C. Jimenez-Lopez
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - M. Fraga-Corral
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - M. Carpena
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - P. García-Oliveira
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - J. Echave
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - A. G. Pereira
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - C. Lourenço-Lopes
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - M. A. Prieto
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| | - J. Simal-Gandara
- Nutrition and Bromatology Group
- Analytical and Food Chemistry Department
- Faculty of Food Science and Technology
- University of Vigo
- E-32004 Ourense
| |
Collapse
|
6
|
Soares SS, Bekbolatova E, Cotrim MD, Sakipova Z, Ibragimova L, Kukula-Koch W, Giorno TBS, Fernandes PD, Fonseca DA, Boylan F. Chemistry and Pharmacology of the Kazakh Crataegus Almaatensis Pojark: An Asian Herbal Medicine. Antioxidants (Basel) 2019; 8:antiox8080300. [PMID: 31405193 PMCID: PMC6720545 DOI: 10.3390/antiox8080300] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/01/2019] [Accepted: 08/06/2019] [Indexed: 02/06/2023] Open
Abstract
Crataegus almaatensis, an endemic ornamental plant in Kazakhstan is used in popular medicine due to its cardiotonic properties. The most studied species of the same genus are commonly found in Europe, which shows the importance of having the Kazakh species validated via its chemical and pharmacological studies. High-speed countercurrent chromatography (HSCCC) operated under optimized conditions enabled an isolation of the three main compounds from the aqueous phase of the leaves ethanol extract, further identified by nuclear magnetic resonance (NMR), as quercetin 3-O-rhamnoside (quercitrin) (4.02% of the crude extract-CECa); quercetin 3-O-β-galactoside (hyperoside) (1.82% of CECa); kaempferol 3-O-α-L-rhamnoside (afzelin) (0.94% of CECa). The CECa, the aqueous phase of the crude extract (APCa) together with the isolates were evaluated for their vascular (vascular reactivity in human internal mammary artery-HIMA), anti-nociceptive (formalin-induced liking response and hot plate) and anti-inflammatory (subcutaneous air-pouch model-SAP) activities. CECa at the concentrations of 0.014 and 0.14 mg/mL significantly increased the maximum contractility response of HIMA to noradrenaline. The APCa CR curve (0.007–0.7 mg/mL) showed an intrinsic relaxation effect of the HIMA. APCa at the dose of 100 mg/kg i.p. significantly decreased the total leukocyte count and the IL-1β release in the SAP wash.
Collapse
Affiliation(s)
- Sabrina S Soares
- Laboratory of Pharmacy and Pharmaceutical care, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- School of Pharmacy and Pharmaceutical Sciences & Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland
| | - Elmira Bekbolatova
- School of Pharmacy, JSC National Medical University, 050000 Almaty, Kazakhstan
| | - Maria Dulce Cotrim
- Laboratory of Pharmacy and Pharmaceutical care, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- CIBB Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Zuriyadda Sakipova
- School of Pharmacy, JSC National Medical University, 050000 Almaty, Kazakhstan
| | - Liliya Ibragimova
- School of Pharmacy, JSC National Medical University, 050000 Almaty, Kazakhstan
| | - Wirginia Kukula-Koch
- Department of Pharmacognosy with Medicinal Plants Unit, Medical University of Lublin, 1 Chodzki str., 20-093 Lublin, Poland.
| | - Thais B Sardella Giorno
- Laboratório da Dor e Inflamação, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil
| | - Patrícia D Fernandes
- Laboratório da Dor e Inflamação, Universidade Federal do Rio de Janeiro, 21941-902 Rio de Janeiro, Brazil
| | - Diogo André Fonseca
- Laboratory of Pharmacy and Pharmaceutical care, Faculty of Pharmacy, University of Coimbra, 3000-548 Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR), Faculty of Medicine, University of Coimbra, 3000-548 Coimbra, Portugal
- CIBB Center for Innovative Biomedicine and Biotechnology, University of Coimbra, 3000-548 Coimbra, Portugal
| | - Fabio Boylan
- School of Pharmacy and Pharmaceutical Sciences & Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin 2 D02 PN40, Ireland.
| |
Collapse
|
7
|
Gao Z, Yu Z, Yue T, Quek SY. Optimization of polyphenol removal from kiwifruit juice using a macroporous resin. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:2498-2507. [PMID: 27701746 DOI: 10.1002/jsfa.8066] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 09/18/2016] [Accepted: 09/26/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND The separation of polyphenols from kiwifruit juice is essential for enhancing sensory properties and prevent the browning reaction in juice during processing and storage. RESULTS The present study investigated the dynamic adsorption and desorption of polyphenols in kiwifruit juice using AB-8 resin. The model obtained could be successfully applied to predict the experimental results of dynamic adsorption capacity (DAC) and dynamic desorption quantity (DDQ). The results showed that dynamic adsorption of polyphenols could be optimised in a juice concentration of 19 °Brix, with a feed flow-rate of 1.3 mL min-1 and a feed volume of 7 bed volume (BV). The optimum conditions for dynamic desorption of polyphenols from the AB-8 resin were an ethanol concentration of 43% (v/v), an elute flow-rate of 2.2 mL min-1 and an elute volume of 3 BV. The optimized DAC value was 3.16 g of polyphenols kg-1 resin, whereas that for DDQ was 917.5 g kg-1 , with both values being consistent with the predicted values generated by the regression models. The major polyphenols in the dynamic desorption solution consisted of seven compositions. CONCLUSION The present study could be scaled-up using a continuous column system for industrial application, thus contributing to the improved flavor and color of kiwifruit juice. © 2016 Society of Chemical Industry.
Collapse
Affiliation(s)
- Zhenpeng Gao
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, P.R. China
| | - Zhifang Yu
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, 210095, P.R. China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, P.R. China
| | - Siew Young Quek
- Food Science, School of Chemical Sciences, The University of Auckland, Auckland, 1142, New Zealand
| |
Collapse
|
8
|
A novel combined process for extracting, separating and recovering flavonoids from flos sophorae immaturus. Sep Purif Technol 2017. [DOI: 10.1016/j.seppur.2016.08.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
|
9
|
Friesen JB, McAlpine JB, Chen SN, Pauli GF. Countercurrent Separation of Natural Products: An Update. JOURNAL OF NATURAL PRODUCTS 2015; 78:1765-96. [PMID: 26177360 PMCID: PMC4517501 DOI: 10.1021/np501065h] [Citation(s) in RCA: 196] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Indexed: 05/02/2023]
Abstract
This work assesses the current instrumentation, method development, and applications in countercurrent chromatography (CCC) and centrifugal partition chromatography (CPC), collectively referred to as countercurrent separation (CCS). The article provides a critical review of the CCS literature from 2007 since our last review (J. Nat. Prod. 2008, 71, 1489-1508), with a special emphasis on the applications of CCS in natural products research. The current state of CCS is reviewed in regard to three continuing topics (instrumentation, solvent system development, theory) and three new topics (optimization of parameters, workflow, bioactivity applications). The goals of this review are to deliver the necessary background with references for an up-to-date perspective of CCS, to point out its potential for the natural product scientist, and thereby to induce new applications in natural product chemistry, metabolome, and drug discovery research involving organisms from terrestrial and marine sources.
Collapse
Affiliation(s)
- J. Brent Friesen
- Department
of Medicinal Chemistry and Pharmacognosy and Institute for Tuberculosis Research,
College of Pharmacy, University of Illinois
at Chicago, Chicago, Illinois 60612, United
States
- Physical
Sciences Department, Rosary College of Arts and Sciences, Dominican University, River Forest, Illinois 60305, United States
| | - James B. McAlpine
- Department
of Medicinal Chemistry and Pharmacognosy and Institute for Tuberculosis Research,
College of Pharmacy, University of Illinois
at Chicago, Chicago, Illinois 60612, United
States
| | - Shao-Nong Chen
- Department
of Medicinal Chemistry and Pharmacognosy and Institute for Tuberculosis Research,
College of Pharmacy, University of Illinois
at Chicago, Chicago, Illinois 60612, United
States
| | - Guido F. Pauli
- Department
of Medicinal Chemistry and Pharmacognosy and Institute for Tuberculosis Research,
College of Pharmacy, University of Illinois
at Chicago, Chicago, Illinois 60612, United
States
| |
Collapse
|
10
|
Liu Q, Yu J, Liao X, Zhang P, Chen X. One-Step Separation of Antioxidant Compounds from Erythrina variegata by High Speed Counter-Current Chromatography. J Chromatogr Sci 2014; 53:730-5. [DOI: 10.1093/chromsci/bmu115] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2013] [Indexed: 01/06/2023]
|
11
|
Sieniawska E, Skalicka-Woźniak K. Isolation of chlorogenic acid fromMutellina purpureaL. herb using high-performance counter-current chromatography. Nat Prod Res 2014; 28:1936-9. [DOI: 10.1080/14786419.2014.955494] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
12
|
Zhao S, Zhang D. Supercritical CO2 extraction of Eucalyptus leaves oil and comparison with Soxhlet extraction and hydro-distillation methods. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.07.018] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
13
|
Ma X, Zhou XY, Qiang QQ, Zhang ZQ. Ultrasound-assisted extraction and preliminary purification of proanthocyanidins and chlorogenic acid from almond (Prunus dulcis) skin. J Sep Sci 2014; 37:1834-41. [PMID: 24777956 DOI: 10.1002/jssc.201400070] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Revised: 04/14/2014] [Accepted: 04/14/2014] [Indexed: 11/11/2022]
Abstract
An aqueous solution of polyethylene glycol (PEG) as a green solvent was employed for the first time to develop the ultrasound-assisted extraction of proanthocyanidins (PA) and chlorogenic acid (CA) from almond skin. The optimized extraction parameters were determined based on response surface methodology, and corresponded to an ultrasound power of 120 W, a liquid-to-solid ratio of 20:1 (mL/g), and a PEG concentration of 50% (v/v). Under these optimized conditions, the extraction yields of PAs and CA from almond skin were 32.68 ± 0.22 and 16.01 ± 0.19 mg/g, respectively. Compared with organic solvent extraction, PEG solution extraction produced higher yields. Different macroporous resins were compared for their performance in purifying PAs and CA from almond skin extract. Static adsorption/desorption experimental results demonstrated that AB-8 resin exhibits excellent purification performance at pH 4. Under the optimized dynamic adsorption/desorption conditions on the AB-8 column, the total recovery of purification for PAs and CA was 80.67%. The total content of PAs and CA in the preliminarily purified extract was 89.17% (with respective contents of 60.90 and 28.27%).
Collapse
Affiliation(s)
- Xue Ma
- Key Laboratory of the Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an, China
| | | | | | | |
Collapse
|
14
|
Shuting Z, Yan C, Baoshan S. Preparative isolation of monomer catechins and oligomer procyanidin fractions from grape seed extracts by high-speed counter-current chromatography. BIO WEB OF CONFERENCES 2014. [DOI: 10.1051/bioconf/20140302013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
15
|
Surfactant flushing remediation of toluene contaminated soil: Optimization with response surface methodology and surfactant recovery by selective oxidation with sulfate radicals. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.08.001] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
16
|
Isolation and purification of diarylheptanoids from Alpinia officinarum Hance by high-speed counter-current chromatography. Se Pu 2013; 30:327-31. [DOI: 10.3724/sp.j.1123.2011.11021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
17
|
Zhao S, Zhang D. A parametric study of supercritical carbon dioxide extraction of oil from Moringa oleifera seeds using a response surface methodology. Sep Purif Technol 2013. [DOI: 10.1016/j.seppur.2013.03.041] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
18
|
Extraction optimization approach to improve accessibility of functional fraction based on combination of total polyphenol, chromatographic profiling and antioxidant activity evaluation: Pyracantha fortuneana fruit as an example. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.01.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
|
19
|
Liu L, Liu RL, Zhang J, Zhang ZQ. Study on the PEG-based microwave-assisted extraction of flavonoid compounds from persimmon leaves. J Sep Sci 2012; 35:3412-20. [DOI: 10.1002/jssc.201200495] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2012] [Revised: 08/19/2012] [Accepted: 08/19/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Lei Liu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an P. R. China
| | - Rui-Lin Liu
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an P. R. China
| | - Jing Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an P. R. China
| | - Zhi-Qi Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province; School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an P. R. China
| |
Collapse
|