Subcritical water extraction and antioxidant activity evaluation with on-line HPLC-ABTS·+ assay of phenolic compounds from marigold (Tagetes erecta L.) flower residues

Xu, Huaide; Wang, Weiyou; Jiang, Junping; Yuan, Fang; Gao, Yanxiang

doi:10.1007/s13197-014-1449-9

Cited by 20 publications

(15 citation statements)

References 44 publications

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“…The content of quercetagetin in the crude marigold residues extract was 62.8 %, and more than 8 antioxidant compounds were detected in our preciously studies (Gong et al 2012b;Xu et al 2014). In present study, we focused on recovering the major bioactive compound, quercetagetin in the ethanolic extract.…”

Section: Identification Of the Compoundsmentioning

confidence: 97%

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In vitro antioxidant, anti-diabetic and antilipemic potentials of quercetagetin extracted from marigold (Tagetes erecta L.) inflorescence residues

Wang

Chen

et al. 2016

J Food Sci Technol

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Quercetagetin, the major flavonoid in marigold (Tagetes erecta L.) inflorescence residues was extracted and purified. The content of quercetagetin after the purification was 89.91 ± 0.26 %. The in vitro antioxidant activity of quercetagetin and its potential in controlling diabetes mellitus and obesity were investigated and compared to quercetin and rutin. The 50 % inhibitory concentration (IC 50 ) values of quercetagetin on scavenging 1, 1-diphenyl-2-picrylhydrazyl (DPPH), 2,2-azinobis-(3-ethylbenzothiazolin-6-sulfonic acid) (ABTS) and hydroxyl radicals were 27.12 ± 1.31 μmol/L, 12.16 ± 0.56 μmol/L and 1833.97 ± 6.66 μmol/L, respectively. The IC 50 values of quercetagetin on α-glucosidase, α-amylase and pancreatic lipase were 180.11 ± 3.68 μmol/L, 137.71 ± 3.55 μmol/L and 2327.58 ± 12.37 μmol/L, respectively. These results indicated that quercetagetin exhibited strong in vitro antioxidant, anti-diabetic and antilipemic activities. Lineweaver-Burk plots analysis elucidated that quercetagetin inhibited α-glucosidase and α-amylase non-competitively, while its inhibition against pancreatic lipase was involved in a mixed-type pattern. Moreover, strong correlations were found between ABTS ·+ /DPPH · scavenging activities and lipase inhibitory activity (R 2 > 0.90), as well as ·OH scavenging activity and α-amylase inhibitory activity (R 2 = 0.8967).

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Section: Identification Of the Compoundsmentioning

confidence: 97%

“…1). There are many reports focused on its antioxidant activity (Gong et al 2012a, b;Xu et al 2014), antiinflammatory activity (Kang et al 2013) and copigment effect (Xu et al 2015). Some scientific researches reported that quercetin has strong inhibition of α-glucosidase, α-amylase and lipase (Dong et al 2012;You et al 2012).…”

Section: Introductionmentioning

confidence: 99%

In vitro antioxidant, anti-diabetic and antilipemic potentials of quercetagetin extracted from marigold (Tagetes erecta L.) inflorescence residues

Wang

Chen

et al. 2016

J Food Sci Technol

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“…Usually, extraction temperatures of 80-150°C and extraction times of 1-60 min have been used to extract phenolic compounds by PHWE (see Table 3). In many works, a higher antioxidant capacity has been observed in the extracts obtained at temperatures of over 175°C and at longer extraction times, compared to the extracts obtained at lower temperature and shorter extraction times [36,37,[57][58][59][60][61]. In many of these studies, only the total phenolic compounds and the total antioxidant capacity were measured, with drawbacks as discussed above.…”

Section: Phwe Of Phenolic Compoundsmentioning

confidence: 99%

Pressurized hot water extraction of bioactives

Plaza

Turner

2015

TrAC Trends in Analytical Chemistry

438

224

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HIGHLIGHTS  Review of pressurized hot water extraction of bioactive compounds, 2009-14  Chemical and physical properties of pressurized hot liquid water  Equipment, method optimization, applications, coupling and future prospects  Challenges with degradation and other chemical reactions during extraction ABSTRACT The purpose of this review is to give the reader a thorough background to the fundamentals and applications of pressurized hot water extraction (PHWE) for the analysis of bioactive compounds. We summarize the field in the period 2009-14, and include fundamentals of water as a solvent: equipment; method optimization; applications; coupling; and, future prospects. We highlight that solvent properties of water are tunable by changing the temperature, particularly self-ionization, dielectric constant, viscosity, diffusivity, density and surface tension. Furthermore, important aspects to consider are the risk of degradation of the analytes and other potential reactions, such as hydrolysis, caramelization and Maillard reactions that may lead to erroneous results. For the extraction of bioactive compounds, we report PHWE methods based on using water of 80-175°C and short extraction times. In conclusion, PHWE provides advantages over conventional extraction methods, such as being "greener", faster and more efficient. Why another review article on pressurized hot water extraction?Pressurized hot water extraction (PHWE) is an extraction technique that uses liquid water as extractant (extraction solvent) at temperatures above the atmospheric boiling point of water (100°C/273 K, 0.1 MPa), but below the critical point of water (374°C/647 K, 22.1 MPa) (Fig. 1). The use of PHWE in analytical chemistry started with the work in environmental analysis by Hawthorne and colleagues in the mid-1990s [1,2], and can also be referred to as subcritical water extraction (SWE), superheated water extraction and pressurized liquid extraction or accelerated solvent extraction with water as a solvent. There are a few relatively recent review articles on analytical PHWE, which the reader is recommended to read [3][4][5][6][7].The aim of this review article is to give a thorough background on the fundamental properties of water -an aspect that has been virtually overlooked in most review articles written so far about analytical PHWE. Hence, the first part of this review article concerns the fundamentals of chemical/physical properties of water and how these change with the increase in temperature, as well as how these affect the extraction performance both positively and negatively in different analytical applications.The second part deals with technical solutions of PHWE and how to conduct the experiment in practice. This technical part includes discussions on using commercially available and home-built equipment. The third part includes aspects on method optimization in PHWE. The fourth part summarizes some of the key applications and related publications mainly in the field of extraction of bioactive compounds from plants, food, ...

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“…These include extraction from mango leaves [21], pomegranate [22], rice bran [23], potato peel [24], cinnamon [26], citrus pomaces [27], golden oyster mushroom [28], oregano [30], and marigold flowers [31]. These studies have indicated that SWE is a promising technique for the successful preparation and isolation of phenolic compounds from the matrices of various plants.…”

Section: Extraction Of Bioactive Compounds From Plantsmentioning

confidence: 99%

Subcritical Water Extraction of Bioactive Compounds from Plants and Algae: Applications in Pharmaceutical and Food Ingredients

2015

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Plants and algae are the main sources of natural bioactive compounds used in the food and pharmaceutical industries. It is very important to achieve an efficient and safe technique to recover bioactive compounds while maintaining their quality and properties. Subcritical water extraction is the most promising engineering approach that offers an environmentally friendly technique for extracting various compounds from plants and algae. Application of pressurized water and high temperature in subcritical phase is able to modify the dielectric constant and polarity of the solvent which then contributes to a better extraction process. The technique improves the mass transfer rate and preserves the biological potency of the extracts. This article reviews current studies on the extraction of bioactive compounds from various species of plants and algae using the subcritical water technique and discusses its effects and benefits for the food and pharmaceutical industries.

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Subcritical water extraction and antioxidant activity evaluation with on-line HPLC-ABTS·+ assay of phenolic compounds from marigold (Tagetes erecta L.) flower residues

Cited by 20 publications

References 44 publications

In vitro antioxidant, anti-diabetic and antilipemic potentials of quercetagetin extracted from marigold (Tagetes erecta L.) inflorescence residues

In vitro antioxidant, anti-diabetic and antilipemic potentials of quercetagetin extracted from marigold (Tagetes erecta L.) inflorescence residues

Pressurized hot water extraction of bioactives

Subcritical Water Extraction of Bioactive Compounds from Plants and Algae: Applications in Pharmaceutical and Food Ingredients

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