Simultaneous Purification and Separation of Syringoside and Oleuropein from <i>Syringa oblata</i> Lindl. Extract Using Macroporous Resin

Li, Guoliang; Yan, Hongxiu; Liu, Xiangping

doi:10.1155/2019/2924548

Cited by 2 publications

(1 citation statement)

References 31 publications

(30 reference statements)

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“…In practical applications, the resin is required to adsorb large amounts of the target components, and the desorption rate is required to be high to ensure the maximum recovery of the effective components. Therefore, Li et al (2019) study simultaneous purification and separation of oleuropein, were 11 macroporous resins were preliminarily screened by static adsorption and desorption experiments. By comparing the ability of 11 macroporous resins to adsorb and desorb oleuropein, HPD-100B was selected as the ideal resin for the separation and enrichment of the component.…”

Section: Microfluidic System (Microchannels)mentioning

confidence: 99%

Oleuropein: Methods for extraction, purifying and applying

et al. 2020

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Oleuropein is one of the most abundant phenolic compounds present in olive leaves, and many studies have shown that this compound has important biological properties (anti-inflammatory, anti-atherogenic, anticancer, antimicrobial and antiviral) and that is why it has been gaining prominence in research. Oleuropein can be extracted from different sources using standard and unconventional methods, and can be recovered and purified (mainly by chromatographic techniques), for later use in several areas. The literature presents information about oleuropein alone in scientific research with different objectives, however, it was observed by the authors that studies that compile the existing information on these secoiridoides are very scarce and, therefore, this review was developed with the aim of providing current information to the scientific community, about the different techniques of extraction and purification of oleuropein, as well as the opportunities for applications and uses of this compound.

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Section: Microfluidic System (Microchannels)mentioning

confidence: 99%

Oleuropein: Methods for extraction, purifying and applying

et al. 2020

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Extraction, Identification, and Antioxidant Activity of Flavonoids from Hylotelephium spectabile (Boreau) H. Ohba

Li,

Wu,

Yin

et al. 2024

Foods

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The extraction of total flavonoids from Hylotelephium spectabile (Boreau) H. Ohba (H. spectabile) leaves was studied through the use of a double enzyme-assisted ultrasonic method, and the extraction process was optimized using the Box–Behnken design. Eight different macroporous resins were screened for purification in single-factorial experiments, and the flavonoid compounds in the extract of H. spectabile leaves were identified using HPLC-MS. Through the evaluation of the total reducing capacity and capacity for reducing 1,1-diphenyl-2-trinitrophenylhydrazine (DPPH), hydroxyl radicals (·OH), and 2,2’-biazobis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS), the in vitro antioxidant activities of the crude extracts of the total flavonoids and purified total flavonoids of H. spectabile leaves were investigated. The results showed that the most efficient conditions for flavonoid extraction were an ultrasonic extraction time of 60 min, an ethanol concentration of 35%, a liquid-to-material ratio of 20:1 mL/g, and an amount of enzyme (cellulose/pectinase = 1:1) of 1.5%, forming H. spectabile powder. Under these conditions, the total flavonoid extraction rate in the H. spectabile leaf extract was 4.22%. AB-8 resin showed superior performance in terms of purification, and the optimal adsorption and desorption times were 1.5 h and 3 h, respectively. The recommended parameters for purification included a liquid volume of 5.5 BV, a flow rate of 1.2 BV/min, a pH of 5, and a concentration of 0.8 mg/mL. The observed order for reducing capacity was ascorbic acid (VC) > rutin > purified total flavonoids > crude extract of total flavonoids. The purified total flavonoid extract from H. spectabile showed a good scavenging ability against DPPH, ·OH, and ABTS·+, suggesting strong antioxidant activity. Therefore, this study can serve as technical support and reference data for the further development and utilization of H. spectabile resources.

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Simultaneous Purification and Separation of Syringoside and Oleuropein from Syringa oblata Lindl. Extract Using Macroporous Resin

Cited by 2 publications

References 31 publications

Oleuropein: Methods for extraction, purifying and applying

Oleuropein: Methods for extraction, purifying and applying

Extraction, Identification, and Antioxidant Activity of Flavonoids from Hylotelephium spectabile (Boreau) H. Ohba

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