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Qiao Y, Chen Q, Gou M, Liu Z, Purcaro G, Jin X, Wu X, Lyu J, Bi J. Elucidation of baking induced changes in key odorants of Red Jujube (Ziziphus jujuba Mill. cv.‘Junzao’). J Food Compost Anal 2023. [DOI: 10.1016/j.jfca.2023.105320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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Xing Y, Yu Z, Hu X, Yin J, Fan T, Fu Z, Pan G, Liu E, Zhou J, Han L. Characterization of volatile organic compounds in Polygonum multiflorum and two of its processed products based on multivariate statistical analysis for processing technology monitoring. J Chromatogr A 2022; 1680:463431. [PMID: 36027836 DOI: 10.1016/j.chroma.2022.463431] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/15/2022] [Accepted: 08/17/2022] [Indexed: 01/21/2023]
Abstract
Herein we describe a comprehensive analysis of the volatile organic compounds (VOCs) of raw Polygonum multiflorum Thunb. (PM) and two of its processed products, as well as an effective and simple method based on volatile markers to determine to which extent the PM had been processed. Sixty-five VOCs were identified by headspace-solid-phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS), along with headspace-gas chromatography-ion mobility spectrometry (HS-GC-IMS). Principal component analysis (PCA) of the HS-SPME-GC-MS spectra and fingerprint analysis of the HS-GC-IMS spectra allowed the identification of raw PM from its processed products based the VOCs identified. Furthermore, the content and distribution of VOCs in the samples were easily analyzed visually based on clustering-kernel density estimation (Cluster-KDE). Finally, exploratory factor analysis (EFA) allowed the screening of significant markers to identify the processing method and consequently distinguish the three studied groups of PM.
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Affiliation(s)
- Yanchao Xing
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Zhenyan Yu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Xiaohan Hu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Jiaxin Yin
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Tianci Fan
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Zhifei Fu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Guixiang Pan
- Second Affiliated hospital of Tianjin University of Traditional Chinese Medicine, 69 Zengchan Road, Hebei District, Tianjin, 300250, P.R. China
| | - Erwei Liu
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China
| | - Jianpeng Zhou
- Tianjin Institude for Drug Control, 98 Guizhou Road, Heping District, Tianjin, 300070, P.R. China.
| | - Lifeng Han
- State Key Laboratory of Component-based Chinese Medicine, Tianjin University of Traditional Chinese Medicine, 10 Poyanghu Road, Jinghai District, Tianjin, 301617, P.R. China.
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Chen Z, Liu Q, Zhao Z, Bai B, Sun Z, Cai L, Fu Y, Ma Y, Wang Q, Xi G. Effect of hydroxyl on antioxidant properties of 2,3-dihydro-3,5-dihydroxy-6-methyl-4 H-pyran-4-one to scavenge free radicals. RSC Adv 2021; 11:34456-34461. [PMID: 35494787 PMCID: PMC9042674 DOI: 10.1039/d1ra06317k] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/12/2021] [Indexed: 11/21/2022] Open
Abstract
It is well known that 2,3-dihydro-3,5-dihydroxy-6-methyl-4H-pyran-4-one (DDMP) is usually formed in the Maillard reaction and it contributes to the antioxidant properties of Maillard reaction intermediates. A series of hydroxyl group protected DDMP derivatives were synthesized to further understand the source of antioxidant activity. Antioxidant abilities of the DDMP derivatives were evaluated by scavenging the 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonate) cationic radical (ABTS˙+), 2,2'-diphenyl-1-picrylhydrazyl radical (DPPH), and galvinoxyl radical, respectively. It was found that the introduction of protecting groups to the free hydroxyl groups of DDMP decreases their reducing abilities. In particular, the hydroxyl group at the olefin position exhibited a remarkable impact on the antioxidant activity of DDMP, indicating that the unstable enol structure in the DDMP moiety is the key factor for its antioxidant activity.
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Affiliation(s)
- Zhifei Chen
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Qiang Liu
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Zhiwei Zhao
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Bing Bai
- School of Food & Biological Engineering, Zhengzhou University of Light Industry Zhengzhou Henan 450002 China
| | - Zhitao Sun
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Lili Cai
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Yufeng Fu
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Yuping Ma
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Qingfu Wang
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
| | - Gaolei Xi
- Technology Center, China Tobacco Henan Industrial Co., Ltd. Zhengzhou Henan 450016 China
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