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Wang Z, Zhao L, Jiang P, Shi G, Zhang L, Zhu W, Xu Z. Sensory properties of rehydrated Toona sinensis shoots after dehydrated by different drying methods and association with gamma-glutamyl transferase reaction. Food Chem 2024; 448:139075. [PMID: 38531300 DOI: 10.1016/j.foodchem.2024.139075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 01/10/2024] [Revised: 03/14/2024] [Accepted: 03/17/2024] [Indexed: 03/28/2024]
Abstract
Sulfur-containing compounds are responsible for the aroma of Toona sinensis shoot (TS). In this study, vacuum-freeze-drying (VFD), microwave-drying (MD), and hot-air-drying at 100 and 40 °C (HAD100 and HAD40, respectively), were applied to dehydrate perishable TS for preservation. VFD-TS retained most aroma of fresh/raw TS after rehydration. The content of sulfur-containing compounds reached to 118.00 µg/g with leading by methyl thiirane, (E,E)/(E,Z)/(Z,Z)-bis-(1-propenyl) disulfides, and (Z)/(E)-2-mercapto-3,4-dimethyl-2,3-dihydrothiophenes accounting for 86.33 %. They were undetected in the rehydrated MD-TS and HAD100-TS, as the indigenous enzymes in TS were deactivated under their dehydration conditions. Interestingly, the sulfur-containing compounds was restored by 77.47 % after the TS was treated by gamma-glutamyl transferase (GGT). Thus, the release of sulfur-containing compounds from TS could depend on GGT reaction. It was different from alliaceous vegetables relying on alliinase reaction. The results revealed the aroma formation in TS and provided an approach to enhance the aroma of TS dried by different methods.
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Affiliation(s)
- Zhaogai Wang
- Agricultural Products Processing Center, Henan Academy of Agricultural Sciences, Zhengzhou, China; School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, USA
| | - Lili Zhao
- Agricultural Products Processing Center, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Pengfei Jiang
- Agricultural Products Processing Center, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Guanying Shi
- Agricultural Products Processing Center, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Le Zhang
- Agricultural Products Processing Center, Henan Academy of Agricultural Sciences, Zhengzhou, China
| | - Wenkui Zhu
- Zhengzhou Tobacco Research Institute, Zhengzhou, China; School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, USA.
| | - Zhimin Xu
- School of Nutrition and Food Sciences, Louisiana State University, Baton Rouge, USA.
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Cong M, Ren X, Song Y, Pang X, Tian X, Liu Y, Guo P, Wang J. Ochrathinols A and B, two pairs of sulfur-containing racemates from an Antarctic fungus Aspergillus ochraceopetaliformis SCSIO 05702 inhibit LPS-induced pro-inflammatory cytokines and NO production. Phytochemistry 2023; 208:113593. [PMID: 36709018 DOI: 10.1016/j.phytochem.2023.113593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 01/22/2023] [Accepted: 01/22/2023] [Indexed: 06/18/2023]
Abstract
Ochrathinols A and B ((±)-1 and (±)-2), two undescribed sulfur-containing racemates, and ochracids A and B (3 and 4), two unprecedented pyrrolizidine alkaloids, were isolated from an Antarctic soil-derived fungus Aspergillus ochraceopetaliformis SCSIO 05702. Their structures including absolute configurations were determined through extensive spectroscopic analysis, chiral-phase HPLC analysis, quantum ECD calculations, and X-ray single-crystal diffraction. Ochrathinols A and B are unprecedented sulfur natural products featuring a novel 3-methylhexahydro-2H-cyclopenta [b]thiophene core. Interestingly, ochrathinol A ((±)-1) outstandingly suppressed the release of LPS-induced IL-1β, IL-6, and TNF-α inflammatory cytokines with concentration of 10 μM and alleviated the unbalanced NAD+/NADH ratio caused by LPS in RAW264.7 macrophages.
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Affiliation(s)
- Mengjing Cong
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medical/Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Xue Ren
- Capital Institute of Pediatrics, Beijing, 100020, China
| | - Yue Song
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medical/Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China
| | - Xiaoyan Pang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medical/Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Xinpeng Tian
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medical/Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China
| | - Yonghong Liu
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medical/Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China.
| | - Peng Guo
- Capital Institute of Pediatrics, Beijing, 100020, China.
| | - Junfeng Wang
- CAS Key Laboratory of Tropical Marine Bio-resources and Ecology/Guangdong Key Laboratory of Marine Materia Medical/Innovation Academy of South China Sea Ecology and Environmental Engineering, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, 510301, China; University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing, 100049, China.
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Zeng X, Zhang G, Li X, Zhu J, Wu Z. Selective removal of aqueous Hg 2+ by magnetic composites sulfur-containing on the hyper-branched surface: Characterization, performance and mechanism. J Environ Manage 2023; 325:116621. [PMID: 36323124 DOI: 10.1016/j.jenvman.2022.116621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/13/2022] [Accepted: 10/22/2022] [Indexed: 06/16/2023]
Abstract
The adsorbents with recyclable, large adsorption capacity and selective adsorption can effectively remove the pollution and harm of heavy metal ions in water. Therefore, two magnetic composites containing sulfur (MCP-S4 and MCP-S8) on the hyper-branched surface were prepared, furthermore, their structures were characterized and adsorption performance was analyzed by FTIR, XRD, TGA, BET, SEM, TEM, VSM and ICP. The results showed that both MCP-S4 and MCP-S8 had superparamagnetism with saturation susceptibility of 22.10 and 22.26 emu/g, and owned a specific surface area of 11.394 and 11.235 m2/g, respectively. MCP-S4 and MCP-S8 could selectively adsorb Hg2+ with the exist of Fe3+, Cu2+, Co2+, Ni2+, Mn2+, and Al3+ in solution. The adsorption kinetics accorded with pseudo-second-order model and Boyd film diffusion model, and the adsorption isotherm was fitted better with Langmuir isotherm model and D-R model, furthermore, the adsorption was an entropic-increasing and endothermic process. The removal rate of Hg2+ from simulated sewage by the two materials was more than 91%, and the adsorption retention rate was more than 85% after five adsorption-desorption cycles. The adsorption mechanism was analyzed by comparing the changes of FTIR, EDS and XPS spectra before and after adsorption. It was found that functional groups (C-N, CONH, CS, SH) could form stable chelates with Hg2+, which was the main reason why MCP-S4 and MCP-S8 could adsorb Hg2+ selectively, furthermore, S atoms of CS and -SH played a leading role in the process of adsorption. In addition, DFT calculation was also used as an auxiliary means to verify the adsorption mechanism.
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Affiliation(s)
- Xiangchu Zeng
- , Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, PR China; , School of Chemistry and Bioengineering, Hechi University, Yizhou, Guangxi, 546300, PR China
| | - Guanghua Zhang
- , Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, PR China.
| | - Xiuling Li
- , School of Chemistry and Bioengineering, Hechi University, Yizhou, Guangxi, 546300, PR China.
| | - Junfeng Zhu
- , Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, PR China
| | - Zhe Wu
- , School of Chemistry and Bioengineering, Hechi University, Yizhou, Guangxi, 546300, PR China
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Huang G, Zhao HR, Meng QQ, Zhang QJ, Dong JY, Zhu BQ, Li SS. Synthesis and biological evaluation of sulfur-containing shikonin oxime derivatives as potential antineoplastic agents. Eur J Med Chem 2017; 143:166-181. [PMID: 29174813 DOI: 10.1016/j.ejmech.2017.11.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [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: 09/11/2017] [Revised: 10/30/2017] [Accepted: 11/11/2017] [Indexed: 02/07/2023]
Abstract
As a continuation of our research on developing potent and potentially safe antineoplastic agents, a set of forty five sulfur-containing shikonin oxime derivatives were synthesized and evaluated for their in vitro cytotoxic activity against human colon cancer (HCT-15), gastric carcinoma (MGC-803), liver (Bel7402), breast (MCF-7) cancer cells and human skin fibroblast (HSF) cells. All the synthesized compounds exhibited potent cytotoxic activity selectively towards HCT-15 cells and did not display apparent toxicity to the normal HSF cells, some of which were more or comparatively effective to the parent compound against HCT-15, MGC-803 and Bel7402 cells. The most active agent 9m displayed high potency against human cancer cells with IC50 ranging from 0.27 ± 0.02 to 9.23 ± 0.12 μM. The structure-activity relationships (SARs) studies suggested that the nature of substituent group in the side chain is important for antitumor potency in vitro. Additionally, nitric oxide release studies revealed that the amount of nitric oxide generated from these oxime derivatives was relatively low. Furthermore, cellular mechanism investigations indicated that compound 9m could arrest cell cycle at G1 phase and induce a strong apoptotic response in HCT-15 cells. Moreover, western blot studies revealed that compound 9m induced apoptosis through the down-regulation of Bcl-2 and up-regulation of Bax, caspase 3 and 9. For all these reasons, compound 9m hold promising potential as antineoplastic agent.
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Affiliation(s)
- Guang Huang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Hui-Ran Zhao
- School of Pharmaceutical Sciences and Chemistry, Dali University, Dali 671000, China
| | - Qing-Qing Meng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Qi-Jing Zhang
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Jin-Yun Dong
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Bao-Quan Zhu
- Shanghai Institute of Pharmaceutical Industry, Shanghai 201203, China
| | - Shao-Shun Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
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Dong LB, Rudolf JD, Shen B. Antibacterial sulfur-containing platensimycin and platencin congeners from Streptomyces platensis SB12029. Bioorg Med Chem 2016; 24:6348-6353. [PMID: 27134119 PMCID: PMC5063666 DOI: 10.1016/j.bmc.2016.04.026] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/07/2016] [Accepted: 04/12/2016] [Indexed: 10/21/2022]
Abstract
The platensimycin (PTM) and platencin (PTN) class of natural products are promising drug leads that target bacterial and mammalian fatty acid synthases. Natural congeners and synthetic analogues of PTM and PTN have been instrumental in determining their structure-activity relationships, with only a few analogues retaining the potencies of PTM and PTN. Here we describe the identification and isolation of two new sulfur-containing PTM congeners (3 and 5) from the engineered dual PTM-PTN overproducing Streptomyces platensis SB12029. Structure elucidation of platensimycin D1 (5), a sulfur-containing PTM pseudo-dimer, revealed the existence of its presumptive thioacid precursor (3). The unstable thioacid 3 was isolated and confirmed by structural characterization of its permethylated product (6). LC-MS analysis of crude extracts of SB12029 confirmed the presence of the thioacid analogue of PTN (4). The minimum inhibitory concentration (MIC) was determined for 5 revealing retention of the strong antibacterial activity of PTM.
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Affiliation(s)
- Liao-Bin Dong
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL 33458, United States
| | - Jeffrey D Rudolf
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL 33458, United States
| | - Ben Shen
- Department of Chemistry, The Scripps Research Institute, Jupiter, FL 33458, United States; Department of Molecular Therapeutics, The Scripps Research Institute, Jupiter, FL 33458, United States; Natural Products Library Initiative at The Scripps Research Institute, The Scripps Research Institute, Jupiter, FL 33458, United States.
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