FOOD CHEMISTRY
·
2023
·
IF 8.8
Yanmei Zhu,Fushuang Xiang,Yuanyuan Su,Xue Jiang,Yipeng Cang,Wanjun Long,Wei Lan,Gaoqiong Deng,Hengye Chen,Yuanbin She,Haiyan Fu
High - temperature Daqu Baijiu faces a challenge from illegal adulteration of high-grade Baijiu bottles with low-grade Baijiu, affecting its quality and value. This study developed a rapid identification method for high temperature Daqu Baijiu with the same aroma type using a four-channel visual array sensor and detection of color changes caused by competition coordination with Zn 2+ and color-changing organic dyes. The array sensor demonstrated high stability and repeatability in targeting flavor components and achieved 97.78 % or more accuracy combined with dd -SIMCA model in detecting adulteration across the Baijiu with same aroma type. The results of GC–MS and Quantum Chemical Calculation showed that esters, acids, and pyrazines played a crucial role. The smart phone App could quickly identify the authenticity of Baijiu with accuracy achieved 93 %. This research provides a foundation for rapid and reliable assessment of Baijiu quality and authenticity, enabling the industry to combat fraudulent practices effectively.
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高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Zegang Fu,Ye Shui Zhang,Guozhao Ji,Aimin Li
Supercritical water (SCW) treatment of plastics is a clean technology in the ‘waste-to-energy’ path. In this work, PP and PET plastics were processed by sub-/supercritical water. The results showed that temperature was the most important factor of the PP and PET degradation. The influence of factors on the degradation of plastics follows the following order: temperature > residence time > plastic/water ratio. These factors influenced the yield of gas products by promoting or inhibiting various reactions (such as reverse water gas shift reaction, methylation reaction, and Fischer-Tropsch synthesis reaction). Besides, the composition of liquid oil was also analyzed. The main composition of the liquid oil produced by PET was benzoic acid and acetaldehyde, which were generated from the decarboxylation of terephthalic acid (TPA) and dehydration reaction of ethylene glycol (EG). The liquid oil from PP was mainly long-chain olefins , long-chain alkanes, cycloalkanes , etc., which were formed by the interaction of various methyl, alkyl, hydroxyl, and other free radicals . This study could build fundamental theories of plastic mixture treatment.
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Food Bioscience
·
2023
·
IF 5.2
Yanping Fan,Meilan Xue,Tianhu Shan,Yixian Bai,Huaqi Zhang,Man Liu,Peng Wang,Xi Liang,Hui Liang
Alcoholic liver fibrosis (ALF) is a reversible pathological change in the liver caused by chronic alcohol consumption and is associated with the activation of hepatic stellate cells . Recent findings suggest that niacin can lower triglyceride levels and exert potent antioxidant effects in liver damage. However, the therapeutic effects and molecular mechanisms of niacin in liver fibrosis remain unclear. Therefore, this study aimed to investigate the effects and mechanisms of niacin in ALF using in vivo and in vitro experiments. To establish a murine model of ALF, male C57BL/6N mice were fed a Lieber–DeCarli liquid diet containing 4 % (vol/vol) ethanol and injected with carbon tetrachloride twice weekly (2 mL/kg) for 8 weeks. L-02 and LX2 cells were treated with 400 μM acetaldehyde for 24 h to establish an in vitro ALF model. Serum parameters were examined to investigate the protective effects of niacin against ALF, and network pharmacology was used to identify potential targets and pathways of niacin. Niacin protects against ALF by suppressing the serum levels of aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase , and alkaline phosphatase . Additionally, niacin treatment ameliorated liver fibrosis by improving the antioxidant system, inhibiting heat shock protein 90 (HSP90) activation, promoting signal transducer and activator of transcription 3 (STAT3) ubiquitination , and suppressing the JAK1/STAT3 signaling pathway . Collectively, this study provides experimental evidence that niacin protects against ALF by downregulating the HSP90/JAK1/STAT3 signaling pathway.
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Nano Research
·
2023
·
IF 9.9
Su Zhen,Li Depeng,Zhang Lixin,Tian Si,Su Yuhong,Hu Xiaoyun,Xiong Duan,Guan Qingqing
Smart materials that integrate multi-stimuli response, full reversibility, and dual-visual read-out channel are highly desired for anti-counterfeiting and information encryption applications. Herein, we developed a multiresponsive perchlorate terpyridyl Pt(II) nano complex which could undergo fully reversible conversion between three forms stimulated by water or formaldehyde molecule due to the extent of Pt–Pt interaction. Meanwhile, a dual-visual channel, i.e., the colorimetric channel changed from yellow to orange or red and the corresponding luminescent channel from orange to orange-red or red, has also been found. The weak and equivalent strength of ion-dipole interaction and hydrogen bond that generated between formaldehyde/water and Pt(II) salt result in the easy-control reversibility between the three forms. Furthermore, by introducing different polymer matrices, 1 Cl·ClO 4 @PMMA ( 1 Cl·ClO 4 : [Pt(tpy)Cl]·ClO 4 , tpy: 2,2′:6′,2″-terpyridine), PMMA: poly(methyl methacrylate)) and 1 Cl·ClO 4 @PVA (PVA: polyvinyl alcohol) are successfully constructed, which exhibit different reversible behaviors since the PMMA and PVA matrix exert different influences on the strength of hydrogen-bond. Those smart Pt(II) salt nanostructures present great potential for high-security-level anticounterfeiting application.
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JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2023
·
IF 4.3
Xiaojie Geng,Qing Li,Xinlei Wang,Lin Zhu,Bowen Wang,Fuping Zheng,Guangnan Wang,Erbao Chen,Yuhang Zhang
Environmental factors are the key factors affecting the fermentation of traditional fermented foods . However, the effects of environmental factors on flavor metabolism of Laobaigan-flavor Baijiu have not been described. In this study, we applied HS-SPME–GC–MS and physicochemical parameters analysis to reveal the dynamic of volatile flavor compounds and environmental factors, and indicated the effects of environmental factors on the succession of volatile flavor compounds. The fermentation process was divided into three stages: alcohols (628 mg/kg) and acids reached higher in the early stage (0–8 days), while aldehydes existed more in the middle stage (10–17 days) and esters accumulated until the middle (2501 mg/kg) or later (1168 mg/kg) stages (20–29 days). Meanwhile, environmental factors changed rapidly ( p < 0.05), and significantly correlated with the formation of flavor compounds at different stages. Among them, pH and protein content were significantly related to esters (|r| > 0.6) esterified by monocarboxylic acid in the middle stage, while esters (|r| > 0.7) synthesized with hydroxyl acid had significant relations with temperature and moisture in the later stage. Our study indicated the correlations between the dynamic of environmental factors and the succession of volatile flavor compounds, and it provided a potential approach to manage environmental factors to improve the fermentation of Baijiu.
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高影响因子
NATURE
·
2023
·Vol. 621
·期 7979
·511-515
·
IF 64.8
Yang Guangxu,Gong Zhenggang,Luo Xiaolin,Chen Lihui,Shuai Li
Plywood is widely used in construction, such as for flooring and interior walls, as well as in the manufacture of household items such as furniture and cabinets. Such items are made of wood veneers that are bonded together with adhesives such as urea–formaldehyde and phenol–formaldehyde resins 1 , 2 . Researchers in academia and industry have long aimed to synthesize lignin–phenol–formaldehyde resin adhesives using biomass-derived lignin, a phenolic polymer that can be used to substitute the petroleum-derived phenol 3 , 4 , 5 , 6 . However, lignin–phenol–formaldehyde resin adhesives are less attractive to plywood manufacturers than urea–formaldehyde and phenol–formaldehyde resins owing to their appearance and cost. Here we report a simple and practical strategy for preparing lignin-based wood adhesives from lignocellulosic biomass. Our strategy involves separation of uncondensed or slightly condensed lignins from biomass followed by direct application of a suspension of the lignin and water as an adhesive on wood veneers. Plywood products with superior performances could be prepared with such lignin adhesives at a wide range of hot-pressing temperatures, enabling the use of these adhesives as promising alternatives to traditional wood adhesives in different market segments. Mechanistic studies indicate that the adhesion mechanism of such lignin adhesives may involve softening of lignin by water, filling of vessels with softened lignin and crosslinking of lignins in adhesives with those in the cell wall.
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JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2023
·
IF 6.1
Linghui Kong,Xinyi Fan,Limin Guo,Qingqing Jiang,Jianbo Xiao,Daming Fan,Mingfu Wang,Yueliang Zhao
In this study, we investigated the inhibitory effects of three soybean isoflavones and two soybean phytosterols on the formation of 3-chloropropane-1,2-diol fatty acid esters (3-MCPDE) and aldehydes in heated soybean oil model. 0.4 mM of genistin, genistein, daidzein, stigmasterol, and β-sitosterol significantly reduced 3-MCPDE formation by 25.7, 51.4, 21.4, 61.6, and 55.7%, and total aldehydes formation by 42.03, 43.94, 28.36, 54.74, and 39.23%, respectively. Further study showed that stigmasterol reduced the content of glycidyl esters (GEs) and glycidol, two key intermediates of 3-MCPDE, and prevented fatty acids degradation in the oils. Moreover, the effects of continuous frying time on the content of stigmasterol and the migration of stigmasterol were evaluated in the fried dough sticks model system. The content of stigmasterol in soybean oil was found to be significantly decreased with prolonged heating time. The concentrations of stigmasterol in fried dough sticks and the migration rates of stigmasterol from soybean oil to fried dough sticks decreased with repeated frying sessions. In addition, stigmasterol undergoes oxidative changes during heat treatment, and the oxidation products including 5,6α-epoxystigmasterol, 5,6β-epoxystigmasterol, 7α-hydroxystigmasterol, 7β-hydroxystigmasterol, stigmasterlol-3β,5α,6β-triol, and 7-ketostigmasterol were identified in the frying oils but not in the fried dough sticks. Overall, stigmasterol could be added to soybean oil to reduce 3-MCPDE and aldehydes formation, and reacting with GEs/glycidol and protection of lipid acids from oxidation may be the mechanism of action of stigmasterol.
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高影响因子
RSC Advances
·
2023
·Vol. 13
·期 36
·24878-24886
·
IF 3.9
Depeng Li,Qingqing Guan,Xiaoyun Hu,Yuhong Su,Zhen Su
A new simple Pt(II) terpyridyl salt that shows reversible response towards acetonitrile and irreversible response towards methanol has been reported, accompanied with the colorimetric/luminescent changing from red to yellow. Experimentally and theoretically, the spectroscopic change derives from the hydrogen bonds between crystal water in the Pt(II) terpyridyl salt and external organic molecules, and the different strength of hydrogen bond leads either reversible or irreversible stimuli-response. Furthermore, this Pt(II) terpyridyl salt has been on one hand applied as a probe for sensing acetonitrile in water solution, with high selectivity, good reversibility, proper sensitivity and fast response rate, and on the other hand as advanced anticounterfeiting materials. The current study provides a new approach to acquire and design either reversible or irreversible stimuli-responsive luminescent materials.
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高影响因子
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
·
2023
·Vol. 30
·期 32
·79423-79436
·
IF 5.8
Zhang Jingni,Wang Hongjuan,Chen Huan,Liu Yong,Wang An,Hou Hongwei,Hu Qingyuan
Long-term use of alcohol and cigarettes is associated with millions of deaths each year, directly or indirectly. The carcinogen acetaldehyde is both a metabolite of alcohol and the most abundant carbonyl compound in cigarette smoke, and co-exposure of them is usual and primarily leads to liver and lung injury, respectively. However, few studies have explored the synchronic risk of acetaldehyde on the liver and lung. Here, we investigated the toxic effects and related mechanisms of acetaldehyde based on normal hepatocytes and lung cells. The results showed that acetaldehyde caused significant dose-dependent increases of cytotoxicity, ROS level, DNA adduct level, DNA single/double-strand breakage, and chromosomal damage in BEAS-2B cells and HHSteCs, with similar effects at the same doses. The gene and protein expression and phosphorylation of p38MAPK, ERK, PI3K, and AKT, key proteins of MAPK/ERK and PI3K/AKT pathways regulating cell survival and tumorigenesis, were significantly upregulated on BEAS-2B cells, while only protein expression and phosphorylation of ERK were upregulated significantly, the other three decreased in HHSteCs. When either the inhibitor of the four key proteins was co-treated with acetaldehyde, cell viabilities were almost unchanged in BEAS-2B cells and HHSteCs. Thus, acetaldehyde could synchronically induce similar toxic effects in BEAS-2B cells and HHSteCs, and MAPK/ERK and PI3K/AKT pathways seem to be involved in different regulatory mechanisms.
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Small
·
2023
·Vol. 19
·期 24
·2207557
·
IF 13.3
Xin Zhang,Tao Wang,Cui Wang,René Hübner,Alexander Eychmüller,Jinhua Zhan,Bin Cai
Electrochemical upgrading of ethanol to acetic acid provides a promising strategy to couple with the current hydrogen production from water electrolysis. This work reports the design of a series of bimetallic Pt Hg aerogels, where the PtHg aerogel exhibits a 10.5-times higher mass activity than that of commercial Pt/C toward ethanol oxidation. More impressively, the PtHg aerogel demonstrates nearly 100% selectivity toward the production of acetic acid. The operando infrared spectroscopic studies and nuclear magnetic resonance analysis verify the preferable C2 pathway mechanism during the reaction. This work opens an avenue for the electrochemical synthesis of acetic acid via ethanol electrolysis.
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JOURNAL OF FOOD COMPOSITION AND ANALYSIS
·
2023
·
IF 4.3
Wu Huizhen,Liu Zhi,Zhang Hu,Xie Shuangnan,Tang Chao,Liu Wei,Li Bin,Chen Piao,Zhang Zihong,Qian Mingrong
Endogenous SEM (SEM end ) naturally occurs in crustacea aquatic products, it confuses the legal verdict of exogenous SEM (SEM ex ) degraded by antibiotic nitrofurazone abuse. In the present study, compound-specific gas phase chromatography-combustion-isotope ratio mass spectrometry (GC-C-IRMS) analysis coupled with a two-step pre-column derivatization was developed for determining the nitrogen stable ratio (δ 15 N) of SEM in shrimp and crab. The optimal derivatization and solid phase extraction (SPE) condition of SEM were screened by Plackett-Burman design and central composite design (CCD) experiment. The nitrogen isotope ratio analysis (NSIRA) of SEM in two types of crustaceans proved that its δ 15 N values significantly decreased from 7.0‰ to 2.0‰ once nitrofurazone being used. Analytical results found that the δ 15 N value of SEM ex in vivo was consistent its nitrofurazone precursor but the value of SEM end was dependent on N-containing components (e.g., tissue protein), ANOVA showed significant difference between two types of SEM (p < 0.05). Based on the δ 15 N variations between SEM itself and its nitrofurazone precursor, tissue protein of crustaceans, the percentages of SEM ex and SEM end can be calculated for its source apportionment in vivo. The limit of detection of SEM is down to 0.21 μg kg −1 and 0.54 μg kg −1 , and the identification lower limit of SEM ex are accurate at 6.27% and 0% for two types of crustaceans. The strategy first realized the independent determination of SEM ex and SEM end in crustacea aquatic products, which explained that high-level SEM in crustaceans can’t as the legal verdict of nitrofurazone abuse in aquaculture.
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高影响因子
Foods
·
2023
·Vol. 12
·期 7
·1455
·
IF 5.2
Junting Yu,Zhilei Zhou,Xibiao Xu,Huan Ren,Min Gong,Zhongwei Ji,Shuangping Liu,Zhiming Hu,Jian Mao
Huangjiuis one of the oldest alcoholic beverages in the world. It is usually made by fermenting grains, and Qu is used as a saccharifying and fermenting agent. In this study, we identified differential carbonyl compounds inHuangjiuwith varying sugar contents from different regions. First, we developed and validated a detection method for volatile carbonyl compounds inHuangjiu, and for optimal extraction, 5 mL ofHuangjiuand 1.3 g/L of O-(2,3,4,5,6-pentafluorobenzyl)hydroxylamine hydrochloride (PFBHA) were incubated at 45 °C for 5 min before extracting the volatile carbonyl compounds at 45 °C for 35 min. Second, the targeted quantitative analysis of 50 carbonyl compounds inHuangjiushowed high levels of Strecker aldehydes and furans. Finally, orthogonal projections to latent structures discriminant analysis (OPLS-DA) was used to differentiate betweenHuangjiuwith different sugar contents, raw materials, and region of origin. A total of 19 differential carbonyl compounds (VIP > 1,p< 0.05) were found inHuangjiuwith different sugar contents (semidry and semisweetHuangjiu), and 20 differential carbonyl compounds (VIP > 1,p< 0.05) were found in different raw materials forHuangjiuproduction (rice and nonriceHuangjiu). A total of twenty-two and eight differential carbonyl compounds, with VIP > 1 andp< 0.05, were identified in semidry and semisweetHuangjiufrom different regions (Zhejiang, Jiangsu, Shanghai, and Fujian), respectively.Keywords:Huangjiu;carbonyl compounds;PFBHA;targeted metabolomics;OPLS-DA
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高影响因子
危险品化学品经营许可证（带存储）