Arabian Journal of Chemistry
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2021
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IF 5.165
Weizhuo Tang,Shuang Li,Miaomiao Wang,Bin Wang
In this study, simultaneous optimization of ultrasound-assistant extraction (UAE) of four representative groups of Osmanthus fragrans (OF) fruit was firstly performed using the response surface methodology (RSM). Subsequently, qualitative and quantitative analysis of irioid glycosides from the optimized OF fruit extract was performed using UPLC-ESI-Orbitrap-MS/MS. A total of 13 irioid glycosides were tentatively identified, of which six compounds were identified for the first time. Finally, the anti-inflammatory activity of the optimized OF var. aurantiacus Makino (OFA) fruit extract was evaluated based on a CuSO 4 -induced zebra fish model. The biological results demonstrated that OFA fruit extract at a concentration of 5 μg/mL could significantly reduce the number of macrophages, but no significant activities were observed at high concentrations (10 and 50 μg/mL). These results suggest that OF fruit has the promise as a functional additive in food for health promotion.
研究领域:
药理学
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分析化学
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食品科学
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产品关联
DOI
高影响因子
FOOD CHEMISTRY
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2020
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IF 6.306
Wei Jia,Yunlong Li,An Du,Zibian Fan,Rong Zhang,Lin Shi,Cangxue Luo,Keyi Feng,James Chang,Xiaogang Chu
Classification of Feng-flavor Baijiu considering aging category was furnished with a comprehensive fingerprinting strategy which used UPLC-Orbitrap and foodomics, and the most discriminant 29 compounds related to aging, 15 organic acids, 8 esters as well as some carbonyl compounds were discovered. Increase of aromatic organic acids, decline of carcinogenic dibutyl phthalate and generation of numerous aromatic substances in Baijiu were caused by irradiation until the system reached a relatively stable state which needed 28 days. It is similarity of physical and chemical reaction process of natural aging and irradiation maturation that both can facilitate flavor of base Baijiu, while the aging time can be plainly shorten utilizing irradiation for Baijiu, whose outcome has been demonstrated by LC-MS and sensory evaluation. The combination of UPLC-Orbitrap and foodomics was applied as a valid tactic to analyze a complex system and gamma irradiation can be a powerful tool to promote Baijiu aging.
研究领域:
食品科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMOSPHERE
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2023
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IF 8.8
Zhujun Luo,Wantang Huang,Wenyan Yu,Shaoyu Tang,Kun Wei,Yuanyuan Yu,Lei Xu,Hua Yin,Junfeng Niu
Tris (2-butoxyethyl) phosphate (TBOEP) has gained significant attention due to its widespread presence and potential toxicity in the environment. In this study, the degradation of TBOEP in aquatic media was investigated using electrochemical oxidation technology . The anode Ti/SnO 2 –Sb/La–PbO 2 demonstrated effective degradation performance, with a reaction constant ( k ) of 0.6927 min −1 and energy consumption of 1.24 kW h/m 3 at 10 mA/cm 2 . CV tests, EPR tests, and quenching experiments confirmed that indirect degradation is the main degradation mechanism and ·OH radicals were the predominant reactive species, accounting for up to 93.8%. The presence of various factors, including Cl − , NO 3 − , HCO 3 − and humic acid (HA), inhibited the degradation of TBOEP, with the inhibitory effect dependent on the concentrations. A total of 13 intermediates were identified using UPLC-Orbitrap-MS/MS, and subsequent reactions led to their further degradation. Two main degradation pathways involving bond breaking, hydroxylation, and oxidation were proposed. Both Flow cytometry and the ECOSAR predictive model indicated that the intermediates exhibited lower toxic than the parent compound, resulting in a high detoxification rate of 95.9% for TBOEP. Although the impact of TBOEP on the phylum-level microbial community composition was found to be insignificant, substantial alterations in bacterial abundance were noted when examining the genus level. The dominant genus Methylotenera , representing 17.4% in the control group, decreased to 6.9% in the presence of TBOEP and slightly increased to 8.7% in the 4-min exposure group of degradation products . Electrochemical oxidation demonstrated its effectiveness for the degradation and detoxification of TBOEP in aqueous solutions, while it is essential to consider the potential impact of degradation products on sediment microbial communities.
研究领域:
环境科学
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化学工程
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分析化学
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毒理学
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微生物学
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产品关联
DOI
PubMed
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Lei Xu,Junfeng Niu,Hongbin Xie,Xiao Ma,Yunqing Zhu,John Crittenden
The effective electrochemical oxidation of aqueous carbamazepine (CBZ) using a novel blue-colored TiO 2 nanotube arrays (BC-TiO 2 NTA) membrane filter anode was studied. The BC-TiO 2 NTA was characterized using SEM, TEM, BET, mercury intrusion porosimetry, XPS, XRD, CV, and LSV. The BC-TiO 2 NTA had reserved pore structure, formed mesopores, specific and electroactive surface areas of 2.01 m 2 g −1 and 9.32 cm 2 cm −2 , respectively. The oxygen evolution potential was 2.61 V vs. SCE. CBZ could be degraded by OH, SO 4 − and O 2 − on BC-TiO 2 NTA in accordance to pseudo-first-order kinetic, which was greatly enhanced in flow-through mode. The optimal kinetic rate constant of CBZ degradation of 0.403 min −1 was achieved at 3 mA cm −2 , while energy consumption per order was 0.086 kW h m −3 . The mineralization efficiency and mineralization current efficiency were 50.8 % and 9.5 % at 180 min, respectively. The presence of Cl − (0.3−3 mM) accelerated electrochemical degradation of CBZ, while NO 3 − (0.1−2 mM) inhibited the reaction. Based on density functional theory calculation and UPLC-Orbitrap-MS/MS measurement, we found that electrochemical degradation of CBZ was initialized by cleavage of −CONH 2 group and attack of OH on the olefinic double bond of the central heterocyclic ring.
研究领域:
环境科学
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电化学
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材料科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）