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Xia EQ, Chen Y, Lu Q, Li Y, Hang Y, Su J, Liu Y, Li HB. Optimization and Application of Ultrasound Assisted QuEChERS and Ionic Liquid Dispersive Liquid–liquid Microextraction Followed by HPLC for Determination of BBP and DBP in Packaging Food. FSTR 2018. [DOI: 10.3136/fstr.24.231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University
| | | | - Qin Lu
- Guangdong International Travel Healthcare Center
| | - Ya Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University
| | - Ying Hang
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University
| | - Jiewen Su
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University
| | - Yuting Liu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University
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Xia EQ, Zhu SS, He MJ, Luo F, Fu CZ, Zou TB. Marine Peptides as Potential Agents for the Management of Type 2 Diabetes Mellitus-A Prospect. Mar Drugs 2017; 15:md15040088. [PMID: 28333091 PMCID: PMC5408234 DOI: 10.3390/md15040088] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/17/2017] [Accepted: 03/20/2017] [Indexed: 01/09/2023] Open
Abstract
An increasing prevalence of diabetes is known as a main risk for human health in the last future worldwide. There is limited evidence on the potential management of type 2 diabetes mellitus using bioactive peptides from marine organisms, besides from milk and beans. We summarized here recent advances in our understanding of the regulation of glucose metabolism using bioactive peptides from natural proteins, including regulation of insulin-regulated glucose metabolism, such as protection and reparation of pancreatic β-cells, enhancing glucose-stimulated insulin secretion and influencing the sensitivity of insulin and the signaling pathways, and inhibition of bioactive peptides to dipeptidyl peptidase IV, α-amylase and α-glucosidase activities. The present paper tried to understand the underlying mechanism involved and the structure characteristics of bioactive peptides responsible for its antidiabetic activities to prospect the utilization of rich marine organism proteins.
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Affiliation(s)
- En-Qin Xia
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Shan-Shan Zhu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Min-Jing He
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Fei Luo
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Cheng-Zhan Fu
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
| | - Tang-Bin Zou
- Dongguan Key Laboratory of Environmental Medicine, School of Public Health, Guangdong Medical University, Dongguan 523808, China.
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Li HW, Zou TB, Jia Q, Xia EQ, Cao WJ, Liu W, He TP, Wang Q. Anticancer effects of morin-7-sulphate sodium, a flavonoid derivative, in mouse melanoma cells. Biomed Pharmacother 2016; 84:909-916. [DOI: 10.1016/j.biopha.2016.10.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 10/01/2016] [Indexed: 12/21/2022] Open
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Guo YJ, Deng GF, Xu XR, Wu S, Li S, Xia EQ, Li F, Chen F, Ling WH, Li HB. Antioxidant capacities, phenolic compounds and polysaccharide contents of 49 edible macro-fungi. Food Funct 2013; 3:1195-205. [PMID: 22868715 DOI: 10.1039/c2fo30110e] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Edible macro-fungi are widely consumed as food sources for their flavors and culinary features. In order to explore the potential of macro-fungi as a natural resource of bioactive compounds, the antioxidant properties and polysaccharide contents of 49 edible macro-fungi from China were evaluated systematically. A positive correlation between antioxidant capacity and total phenolic content indicated that phenolic compounds could be main contributors of antioxidant capacities of these macro-fungi. Furthermore, many bioactive compounds such as gallic, homogentisic, protocatechuic, and p-hydroxybenzoic acid were identified and quantified. The macro-fungi species Thelephora ganbajun Zang, Boletus edulis Bull., Volvariella volvacea Sing, Boletus regius Krombh, and Suillus bovinus Kuntze displayed the highest antioxidant capacities and total phenolic contents, indicating their potential as important dietary sources of natural antioxidants.
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Affiliation(s)
- Ya-Jun Guo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
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Chen YH, Xia EQ, Xu XR, Ling WH, Li S, Wu S, Deng GF, Zou ZF, Zhou J, Li HB. Evaluation of acrylamide in food from China by a LC/MS/MS method. Int J Environ Res Public Health 2012; 9:4150-8. [PMID: 23202837 PMCID: PMC3524618 DOI: 10.3390/ijerph9114150] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 10/15/2012] [Accepted: 10/23/2012] [Indexed: 11/16/2022]
Abstract
Acrylamide is potential carcinogenic compound that possesses neurotoxicity activity. In this study, the levels of acrylamide in 123 selected food samples from China was evaluated using a LC/MS/MS method. One hundred and fifteen (115) out of 123 samples showed positive levels of acrylamide in the range of 0.41 to 4,126.26 µg/kg. Generally, the highest acrylamide levels were found in fried products, such as potato, prawn strips and rice crust, with average values of 604.27, 341.40, and 201.51 µg/kg, respectively. Heated protein-rich food also showed some acrylamide content (ranging from 2.31 to 78.57 µg/kg). The results revealed that a potential acrylamide public health risk occurred in processed snacks, as well as the food consumed daily. This study supplied new information on acrylamide content of a variety of heat-treated foods from China.
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Affiliation(s)
- Yong-Hong Chen
- Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China; (Y.-H.C.); (Z.-F.Z.)
| | - En-Qin Xia
- School of Public Health, Guangdong Medical College, Dongguan 510234, China;
| | - Xiang-Rong Xu
- Key Laboratory of Marine Bio-Resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Wen-Hua Ling
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (W.-H.L.); (S.L.); (S.W.); (G.-F.D.); (J.Z.)
| | - Sha Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (W.-H.L.); (S.L.); (S.W.); (G.-F.D.); (J.Z.)
| | - Shan Wu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (W.-H.L.); (S.L.); (S.W.); (G.-F.D.); (J.Z.)
| | - Gui-Fang Deng
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (W.-H.L.); (S.L.); (S.W.); (G.-F.D.); (J.Z.)
| | - Zhi-Fei Zou
- Guangdong Inspection and Quarantine Technology Center, Guangzhou 510623, China; (Y.-H.C.); (Z.-F.Z.)
| | - Jing Zhou
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (W.-H.L.); (S.L.); (S.W.); (G.-F.D.); (J.Z.)
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, Department of Nutrition, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (W.-H.L.); (S.L.); (S.W.); (G.-F.D.); (J.Z.)
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Deng GF, Xu XR, Guo YJ, Xia EQ, Li S, Wu S, Chen F, Ling WH, Li HB. Determination of antioxidant property and their lipophilic and hydrophilic phenolic contents in cereal grains. J Funct Foods 2012. [DOI: 10.1016/j.jff.2012.06.008] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Xia EQ, Yu YY, Xu XR, Deng GF, Guo YJ, Li HB. Ultrasound-assisted extraction of oleanolic acid and ursolic acid from Ligustrum lucidum Ait. Ultrason Sonochem 2012; 19:772-6. [PMID: 22197019 DOI: 10.1016/j.ultsonch.2011.11.014] [Citation(s) in RCA: 61] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2011] [Revised: 09/27/2011] [Accepted: 11/13/2011] [Indexed: 05/31/2023]
Abstract
Oleanolic acid and ursolic acid are the main bioactive compounds in fruit of Ligustrum lucidum Ait, which possess anti-inflammatory, antioxidative, antiprotozoal, antimutagenic and anticancer properties. In this study, the ultrasound-assisted extraction of oleanolic acid and ursolic acid from L. lucidum Ait was investigated with HPLC-photodiode array detection. Effects of several experimental parameters, such as type and concentration of extraction solvent, ratio of liquid to material, extraction temperature and extraction time, on extraction efficiencies of oleanolic acid and ursolic acid from L. lucidum were evaluated. The influence of experimental parameters on extraction efficiency of ursolic acid was more significant than that of oleanolic acid. The optimal extraction conditions were 95% ethanol, the ratio of material to liquid at 1:20, and extraction for 10 min at 40°C under ultrasonic irradiation. Under the optimal conditions, the yields of oleanolic acid and ursolic acid were 6.3 ± 0.25 and 9.8 ± 0.30 mg/g, respectively. The results indicated that the ultrasound-assisted extraction is a very useful method for the extraction of oleanolic acid and ursolic acid from L. lucidum.
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Affiliation(s)
- En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
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Xia EQ, Cui B, Xu XR, Song Y, Ai XX, Li HB. Microwave-assisted extraction of oxymatrine from Sophora flavescens. Molecules 2011; 16:7391-400. [PMID: 21878859 PMCID: PMC6264219 DOI: 10.3390/molecules16097391] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 08/15/2011] [Accepted: 08/16/2011] [Indexed: 11/16/2022] Open
Abstract
In this paper, microwave-assisted extraction (MAE) of oxymatrine from Sophora flavescens were studied by HPLC-photodiode array detection. Effects of several experimental parameters, such as concentration of extraction solvent, ratio of liquid to material, microwave power, extraction temperature, and extraction time on the extraction efficiencies of oxymatrine were evaluated. The optimal extraction conditions were 60% ethanol, a 20:1 (v/v) ratio of liquid to material and extraction for 10 min at 50 °C under 500 W microwave irradiation. Under the optimum conditions, the yield of oxymatrine was 14.37 mg/g. The crude extract obtained could be used as either a component of some complex traditional medicines or for further isolation and purification of bioactive compounds. The results, which indicated that MAE is a very useful tool for the extraction of important phytochemicals from plant materials, should prove helpful for the full utilization of Sophora flavescens.
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Affiliation(s)
- En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (E.-Q.X.); (B.C.); (Y.S.); (X.-X.A.)
| | - Bo Cui
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (E.-Q.X.); (B.C.); (Y.S.); (X.-X.A.)
| | - Xiang-Rong Xu
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; (X.-R.X.)
| | - Yang Song
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (E.-Q.X.); (B.C.); (Y.S.); (X.-X.A.)
| | - Xu-Xia Ai
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (E.-Q.X.); (B.C.); (Y.S.); (X.-X.A.)
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; (E.-Q.X.); (B.C.); (Y.S.); (X.-X.A.)
- Author to whom correspondence should be addressed; ; Tel.: +86-20-8733-2391; Fax: +86-20-8733-0446
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Xia EQ, Wang BW, Xu XR, Zhu L, Song Y, Li HB. Microwave-assisted extraction of oleanolic acid and ursolic acid from Ligustrum lucidum Ait. Int J Mol Sci 2011; 12:5319-29. [PMID: 21954361 PMCID: PMC3179168 DOI: 10.3390/ijms12085319] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 08/09/2011] [Accepted: 08/12/2011] [Indexed: 11/17/2022] Open
Abstract
Oleanolic acid and ursolic acid are the main active components in fruit of Ligustrum lucidum Ait, and possess anticancer, antimutagenic, anti-inflammatory, antioxidative and antiprotozoal activities. In this study, microwave-assisted extraction of oleanolic acid and ursolic acid from Ligustrum lucidum was investigated with HPLC-photodiode array detection. Effects of several experimental parameters, such as type and concentration of extraction solvent, ratio of liquid to material, microwave power, extraction temperature and microwave time, on the extraction efficiencies of oleanolic acid and ursolic acid from Ligustrum lucidum were evaluated. The influence of experimental parameters on the extraction efficiency of ursolic acid was more significant than that of oleanolic acid (p < 0.05). The optimal extraction conditions were 80% ethanol aqueous solution, the ratio of material to liquid was 1:15, and extraction for 30 min at 70 °C under microwave irradiation of 500 W. Under optimal conditions, the yields of oleanolic acid and ursolic acid were 4.4 ± 0.20 mg/g and 5.8 ± 0.15 mg/g, respectively. The results obtained are helpful for the full utilization of Ligustrum lucidum, which also indicated that microwave-assisted extraction is a very useful method for extraction of oleanolic acid and ursolic acid from plant materials.
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Affiliation(s)
- En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.-Q.X.); (B.-W.W.); (L.Z.); (Y.S.)
| | - Bo-Wei Wang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.-Q.X.); (B.-W.W.); (L.Z.); (Y.S.)
| | - Xiang-Rong Xu
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; E-Mail:
| | - Li Zhu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.-Q.X.); (B.-W.W.); (L.Z.); (Y.S.)
| | - Yang Song
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.-Q.X.); (B.-W.W.); (L.Z.); (Y.S.)
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.-Q.X.); (B.-W.W.); (L.Z.); (Y.S.)
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Fu L, Xu BT, Xu XR, Gan RY, Zhang Y, Xia EQ, Li HB. Antioxidant capacities and total phenolic contents of 62 fruits. Food Chem 2011; 129:345-350. [PMID: 30634236 DOI: 10.1016/j.foodchem.2011.04.079] [Citation(s) in RCA: 345] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Revised: 04/01/2011] [Accepted: 04/25/2011] [Indexed: 12/23/2022]
Abstract
In order to supply new information on the antioxidant function of selected fruits for nutritionists and the general public, antioxidant activities and total phenolic contents of 62 fruits were evaluated using ferric reducing antioxidant power (FRAP) and Trolox equivalent antioxidant capacity (TEAC) assays as well as the Folin-Ciocalteu method, respectively. The correlations between the FRAP value and the TEAC value as well as total phenolic content were also assessed. The results showed that different fruits had diverse antioxidant capacities and the variation was very large, and seven fruits, Chinese date, pomegranate, guava, sweetsop, persimmon, Chinese wampee and plum, possessed the highest antioxidant capacities and total phenolic contents among tested fruits, and could be important dietary sources of natural antioxidants for prevention of diseases caused by oxidative stress.
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Affiliation(s)
- Li Fu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; Liwan District Center for Disease Control and Prevention, Guangzhou 510176, China
| | - Bo-Tao Xu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiang-Rong Xu
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Ren-You Gan
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - Yuan Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China.
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Fu L, Xu BT, Gan RY, Zhang Y, Xu XR, Xia EQ, Li HB. Total phenolic contents and antioxidant capacities of herbal and tea infusions. Int J Mol Sci 2011; 12:2112-24. [PMID: 21731430 PMCID: PMC3127106 DOI: 10.3390/ijms12042112] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2011] [Accepted: 03/23/2011] [Indexed: 11/22/2022] Open
Abstract
In order to supply new information on the antioxidant function of selected beverages for nutritionists and the general public, total phenolic contents of 51 kinds of herbal and tea infusions made in China were measured by the Folin-Ciocalteu method, and their antioxidant capacities were evaluated using ferric reducing antioxidant power (FRAP) and Trolox equivalent antioxidant capacity (TEAC) assays. A significant correlation between FRAP and TEAC values suggested that antioxidant components in these beverages were capable of reducing oxidants and scavenging free radicals. The high correlation between antioxidant capacities and total phenolic contents indicated that phenolic compounds could be one of the main components responsible for antioxidant activities of these beverages. Generally, these beverages had high antioxidant capacities and total phenolic contents, and could be important dietary sources of antioxidant phenolics for prevention of diseases caused by oxidative stress.
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Affiliation(s)
- Li Fu
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (L.F.); (R.-Y.G.); (Y.Z.); (E.-Q.X.)
- Liwan District Center for Disease Control and Prevention, Guangzhou 510176, China
| | - Bo-Tao Xu
- Department of Neurosurgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China; E-Mail:
| | - Ren-You Gan
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (L.F.); (R.-Y.G.); (Y.Z.); (E.-Q.X.)
| | - Yuan Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (L.F.); (R.-Y.G.); (Y.Z.); (E.-Q.X.)
| | - Xiang-Rong Xu
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; E-Mail:
| | - En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (L.F.); (R.-Y.G.); (Y.Z.); (E.-Q.X.)
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (L.F.); (R.-Y.G.); (Y.Z.); (E.-Q.X.)
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Xia EQ, Ai XX, Zang SY, Guan TT, Xu XR, Li HB. Ultrasound-assisted extraction of phillyrin from Forsythia suspensa. Ultrason Sonochem 2011; 18:549-552. [PMID: 20980187 DOI: 10.1016/j.ultsonch.2010.09.015] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2010] [Revised: 09/18/2010] [Accepted: 09/29/2010] [Indexed: 05/30/2023]
Abstract
Forsythia suspensa (Thunb.) Vahl is one of the most widely used traditional Chinese medicines, and possesses important biological activities, such as antibacterial, antiviral, anti-inflammatory and antioxidant activities. Phillyrin is the main bioactive component of Forsythia suspensa. In this paper, ultrasound-assisted extraction of phillyrin from Forsythia suspensa was studied with HPLC-photodiode array detection. Effects of several experimental parameters, such as type and concentration of extracting solvent, ratio of liquid to material, extraction temperature, and time of sonication on extraction efficiencies of phillyrin from Forsythia suspensa were evaluated. The optimal extraction conditions were 1g plant sample with 10 ml of 20% methanol and the extraction for 60 min at 60°C under ultrasonic irradiation. Under the optimum conditions, the yield of phillyrin was 0.713±0.009 mg/g. The results indicated that the ultrasound-assisted extraction is a very useful method for the extraction of important phytochemicals from plant materials.
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Affiliation(s)
- En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou, China
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Gan RY, Kuang L, Xu XR, Zhang Y, Xia EQ, Song FL, Li HB. Screening of natural antioxidants from traditional Chinese medicinal plants associated with treatment of rheumatic disease. Molecules 2010; 15:5988-97. [PMID: 20877204 PMCID: PMC6257769 DOI: 10.3390/molecules15095988] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2010] [Revised: 08/10/2010] [Accepted: 08/13/2010] [Indexed: 11/24/2022] Open
Abstract
In order to find new sources of natural antioxidants, the antioxidant capacities of 50 medicinal plants associated with treatment of rheumatic diseases were systemically evaluated using the ferric-reducing antioxidant power (FRAP) and Trolox equivalent antioxidant capacity (TEAC) assays, and their total phenolic contents were measured by the Folin–Ciocalteu method. Their antioxidant activities of some of these plants were analyzed for the first time. The FRAP and TEAC assay results suggested that the antioxidant compounds in these plants possessed free radicals scavenging activity and oxidant reducing power. A positive linear correlation between antioxidant capacities and total phenolic contents implied that phenolic compounds in these plants could be the main components contributing to the observed activities. The results showed that Geranium wilfordii, Loranthus parasiticus, Polygonum aviculare, Pyrrosia sheaeri, Sinomenium acutum and Tripterygium wilfordii possessed the highest antioxidant capacities and total phenolic content among 50 plants tested, and could be rich potential sources of natural antioxidants.
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Affiliation(s)
- Ren-You Gan
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (R.G.); (L.K.); (Y.Z.); (E.X.); (F.S.)
| | - Lei Kuang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (R.G.); (L.K.); (Y.Z.); (E.X.); (F.S.)
| | - Xiang-Rong Xu
- Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; E-Mail: (X.X.)
| | - Yuan Zhang
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (R.G.); (L.K.); (Y.Z.); (E.X.); (F.S.)
| | - En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (R.G.); (L.K.); (Y.Z.); (E.X.); (F.S.)
| | - Feng-Lin Song
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (R.G.); (L.K.); (Y.Z.); (E.X.); (F.S.)
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (R.G.); (L.K.); (Y.Z.); (E.X.); (F.S.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-20-8733-2391; Fax: +86-20-8733-0446
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Xia EQ, Song Y, Ai XX, Guo YJ, Xu XR, Li HB. A new high-performance liquid chromatographic method for the determination and distribution of linalool in Michelia alba. Molecules 2010; 15:4890-7. [PMID: 20657397 PMCID: PMC6257559 DOI: 10.3390/molecules15074890] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2010] [Revised: 07/07/2010] [Accepted: 07/08/2010] [Indexed: 11/16/2022] Open
Abstract
A new high-performance liquid chromatographic method with photodiode array detection was established for the determination of linalool in the plant Michelia alba. Linalool was extracted from the plant sample with the aid of ultrasound, and was analyzed on a Waters RP C(18) column (4.6 x 150 mm, 5 microm) using an acetonitrile and water (55:45, v/v) mobile phase at a flow rate of 1.0 mL/min. The column temperature was set at 25 degrees C, and the detection wavelength was 210 nm. The linear range of the method was 5-200 microg/mL with a correlation coefficient of 0.9975. The recovery was 92-112%, and the relative standard deviation was 1.85% (n = 9). The present method has been used to study the distribution of linalool in the plant Michelia alba. The plant samples include flowers, leaves and tender twigs. Furthermore, leaves included samples in their tender, grown-up and fallen phases, and flowers included samples in their juvenile, middle and whitening phases. The concentrations of linalool in different parts of the plant were 0.21-0.65%, 1.63-4.89% and 0.43% for leaves, flowers and tender twigs, respectively. The results showed that all the plant materials contained relative high concentration of linalool, and juvenile phase flowers contained the highest concentration of linalool. Notably, the fallen leaves also contained high concentrations of linalool, which could be a potential resource of this compound. The results obtained are very helpful for the potential full utilization of this plant.
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Affiliation(s)
- En-Qin Xia
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.X.); (Y.S.); (X.A.); (Y.G.)
| | - Yang Song
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.X.); (Y.S.); (X.A.); (Y.G.)
| | - Xu-Xia Ai
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.X.); (Y.S.); (X.A.); (Y.G.)
| | - Ya-Jun Guo
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.X.); (Y.S.); (X.A.); (Y.G.)
| | - Xiang-Rong Xu
- LMB, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; E-Mail: (X.X.)
| | - Hua-Bin Li
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-Sen University, Guangzhou 510080, China; E-Mails: (E.X.); (Y.S.); (X.A.); (Y.G.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +86-20-8733-2391; Fax: +86-20-8733-0446
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Xia EQ, Deng GF, Guo YJ, Li HB. Biological activities of polyphenols from grapes. Int J Mol Sci 2010; 11:622-46. [PMID: 20386657 PMCID: PMC2852857 DOI: 10.3390/ijms11020622] [Citation(s) in RCA: 542] [Impact Index Per Article: 38.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2009] [Revised: 01/26/2010] [Accepted: 01/29/2010] [Indexed: 04/07/2023] Open
Abstract
The dietary consumption of grape and its products is associated with a lower incidence of degenerative diseases such as cardiovascular disease and certain types of cancers. Most recent interest has focused on the bioactive phenolic compounds in grape. Anthocyanins, flavanols, flavonols and resveratrol are the most important grape polyphenols because they possess many biological activities, such as antioxidant, cardioprotective, anticancer, anti-inflammation, antiaging and antimicrobial properties. This review summarizes current knowledge on the bioactivities of grape phenolics. The extraction, isolation and identification methods of polyphenols from grape as well as their bioavailability and potential toxicity also are included.
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Affiliation(s)
- En-Qin Xia
- Department of Nutrition, Sun Yat-Sen University, Guangzhou, China.
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