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Jin Y, Yang Wang C, Hu W, Huang Y, Li Xu M, Wang H, Kong X, Chen Y, Dong TT, Qin Q, Keung Tsim KW. An optimization of ultra-sonication-assisted extraction from flowers of Apocynum venetum in targeting to amount of free amino acids determined by UPLC-MS/MS. FOOD QUALITY AND SAFETY 2019; 3:52-60. [DOI: 10.1093/fqsafe/fyz001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Yan Jin
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Caroline Yang Wang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Weihui Hu
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yun Huang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Miranda Li Xu
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Huaiyou Wang
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Xiangpeng Kong
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Yicun Chen
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
- Pharmacology Department, Shantou University Medical College, Shantou, China
| | - Tina Tingxia Dong
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
| | - Qiwei Qin
- Joint Laboratory of Guangdong Province and Hong Kong Region on Marine Bioresource Conservation and Exploitation, College of Marine Sciences, South China Agricultural University, Guangzhou, PR China
| | - Karl Wah Keung Tsim
- Shenzhen Key Laboratory of Edible and Medicinal Bioresources, HKUST Shenzhen Research Institute, Hi-Tech Park, Nanshan, Shenzhen, China
- Division of Life Science and Center for Chinese Medicine, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
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Quality Evaluation of Apocyni Veneti Folium from Different Habitats and Commercial Herbs Based on Simultaneous Determination of Multiple Bioactive Constituents Combined with Multivariate Statistical Analysis. Molecules 2018; 23:molecules23030573. [PMID: 29510487 PMCID: PMC6017895 DOI: 10.3390/molecules23030573] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 02/20/2018] [Accepted: 03/01/2018] [Indexed: 12/31/2022] Open
Abstract
Apocyni Veneti Folium (AVF) is a kind of staple traditional Chinese medicine with vast clinical consumption because of its positive effects. However, due to the habitats and adulterants, its quality is uneven. To control the quality of this medicinal herb, in this study, the quality of AVF was evaluated based on simultaneous determination of multiple bioactive constituents combined with multivariate statistical analysis. A reliable method based on ultra-fast liquid chromatography tandem triple quadrupole mass spectrometry (UFLC-QTRAP-MS/MS) was developed for the simultaneous determination of a total of 43 constituents, including 15 flavonoids, 6 organic acids, 13 amino acids, and 9 nucleosides in 41 Luobumaye samples from different habitats and commercial herbs. Furthermore, according to the contents of these 43 constituents, principal component analysis (PCA) was employed to classify and distinguish between AVF and its adulterants, leaves of Poacynum hendersonii (PHF), and gray relational analysis (GRA) was performed to evaluate the quality of the samples. The proposed method was successfully applied to the comprehensive quality evaluation of AVF, and all results demonstrated that the quality of AVF was higher than the PHF. This study will provide comprehensive information necessary for the quality control of AVF.
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Zhu F, Wang J, Zhu L, Tan L, Feng G, Liu S, Dai Y, Wang H. Preparation of molecularly imprinted polymers using theanine as dummy template and its application as SPE sorbent for the determination of eighteen amino acids in tobacco. Talanta 2016; 150:388-98. [PMID: 26838422 DOI: 10.1016/j.talanta.2015.12.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/11/2015] [Accepted: 12/14/2015] [Indexed: 10/22/2022]
Abstract
In this paper, a novel dummy template molecularly imprinted polymer (DMIP) based on a vinyl-SiO2 microspheres surface for the simultaneous selective recognition and enrichment of 18 amino acids was prepared via a surface molecular imprinting technique using theanine as a dummy template. Compared to the imprinted polymers prepared using traditional polymerization techniques, the obtained DMIPs exhibited a regular spherical shape and were relatively monodisperse. The maximal sorption capacity (Qmax) of the resulting DMIPs for the 18 amino acids was up to 1444.3 mg g(-1). A kinetic binding study showed that the sorption capacity reached 85.40% of Qmax in 25 min and sorption equilibrium at 30 min. The imprint factors of the sorbents ranged from 2.86 to 6.9 for the 18 amino acids, which indicated that the DMIP sorbents have high selectivity. An HPLC-UV method for the simultaneous determination of 18 amino acids in tobacco and tobacco smoke was developed using the DMIPs as sorbents for solid phase extraction (SPE) in the sample pretreatment procedure. Under the optimum experimental conditions, the materials had enrichment factors of up to 200 for the amino acids, and the recoveries of the 18 amino acids in tobacco smoke were in the range from 79% to 104% with relative standard deviations of less than 7.4%. It indicated that the obtained DMIP sorbents could specifically recognize the amino acids from complicated samples.
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Affiliation(s)
- Fengling Zhu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Jing Wang
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Lijun Zhu
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Lanlan Tan
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Guanglin Feng
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China
| | - Shaomin Liu
- Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, China.
| | - Ya Dai
- Research and Development Center, China Tobacco Chuanyu Industrial Corporation, Chengdu, Sichuan 610066, China.
| | - Hua Wang
- Research and Development Center, China Tobacco Anhui Industrial Corporation, Hefei, Anhui 230088, China
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Sun Y, Xu X, Mou Z, Wang J, Tan Z, Wu S. Analysis of free amino acids in Amur sturgeon by ultra-performance liquid chromatography using pre-column derivatization with 6-aminoquinolyl-carbamyl. J Sep Sci 2012; 35:3421-6. [DOI: 10.1002/jssc.201200733] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 08/24/2012] [Accepted: 08/27/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Yanchun Sun
- College of Science; Harbin Institute of Technology; Harbin China
- Heilongjiang River Research Institute; Chinese Academy of Fishery Sciences; Harbin China
| | - Xianzhu Xu
- College of Science; Harbin Institute of Technology; Harbin China
| | - Zhenbo Mou
- Heilongjiang River Research Institute; Chinese Academy of Fishery Sciences; Harbin China
| | - Jing Wang
- Hospital of Harbin University of Science and Technology; Harbin China
| | - Zhijun Tan
- Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
| | - Song Wu
- Heilongjiang River Research Institute; Chinese Academy of Fishery Sciences; Harbin China
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