FOOD CHEMISTRY
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2024
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IF 8.5
Jingjing Liu,Yin Wan,Yanru Chen,Haowei Fan,Mengxiang Li,Qihai Jiang,Guiming Fu
Simultaneous inoculation of non- Saccharomyces cerevisiae during the alcoholic fermentation process has been found to be an effective strategy for enhancing wine flavor. This study aimed to investigate the effect of Torulaspora delbrueckii NCUF305.2 on the flavor of navel orange original brandy (NOOB) using E–nose combined with HS–SPME–GC–MS. The results showed a significant increase ( p < 0.05) in the sensitivity of NOOB to W5C, W3C, W1S, and W3S sensors by mixed fermentation (MF). Esters in NOOB increased by 4.13%, while higher alcohols increased by 21.93% ( p < 0.001), terpenes and others increased by 52.07% and 40.99% ( p < 0.01), respectively. Notably, several important volatile compounds with relative odor activity values above 10 showed an increase. Sensory analysis revealed that a more pronounced citrus-like flavor and higher overall appearance scores were found in MF than in pure fermentation (PF). These findings offer valuable theoretical guidance for enhancing the quality of fruit brandies.
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BIORESOURCE TECHNOLOGY
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2024
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IF 9.7
Yizhen Zhang,Yu-Cai He,Cuiluan Ma
Lignin is a plentiful and readily accessible renewable resource. Vanillylamine is a crucial raw material used to synthesize pharmaceuticals and high-value furan compounds that can be acquired by aminating lignin-derived vanillin (Van). However, effectually achieving the biocatalytic synthesis of vanillylamine has remained challenging. In this study, a dimethyl sulfoxide (DMSO)-H 2 O (1:9, vol/vol) bioreaction medium was constructed, and a recombinant E. coli ATA1012 carrying ω-transaminase from Caulobacter sp. D5 was used as the ω-transaminase biocatalyst to acquire the effectual biocatalytic synthesis of vanillylamine. Under optimized bioreaction conditions (37 ℃ and pH 7.5) by supplementary of isopropylamine (IPA) (Van/IPA = 1:5, mol/mol), 80–100 mM Van could be effectually converted by ATA1012 whole cells in DMSO-H 2 O (1:9, vol/vol) within 12 h, yielding 91.2 %–95.4 % vanillylamine, with >99 % selectivity. An efficient amination process was developed using ATA1012 with superior transaminase catalytic activity and substrate tolerance to effectively convert Van to vanillylamine in a DMSO-H 2 O medium.
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JOURNAL OF DAIRY SCIENCE
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2025
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IF 4.4
Bolong Fang,Yuzhi Li,Xiaole Zhao,Yan Liu,Lin Xu,Qiao Wang,Xin Liu,Zhiyong Gong,Weihua Lai
It is an urgent need of rapid and sensitive method for detection of Escherichia coli O157:H7 ( E. coli O157:H7), a class of hazardous foodborne pathogens in food safety. The traditional enzyme-linked immunosorbent assay (ELISA), a dominant rapid detection technic, takes disadvantages of low test sensitivity due to the insufficient enzyme loading capacity. In this study, we successfully synthesized the self-assembled Au/polydopamine (PDA)/HRP nanocomposites with the high enzyme loading on the outer surface and in the inner space. The high catalytic activity of Au/PDA/HRP was maintained by virtue of its hyperbranched flexible structure. For E. coli O157:H7 detection in milk samples, the proposed immunoassay achieved a visual cut-off value of 10 3 cfu mL −1 and a low limit of detection (LOD) of 2.8 × 10 2 cfu mL −1 , 33 and 46 times more sensitive than the traditional ELISA, respectively. The tremendous advantages of high sensitivity, excellent specificity and adequate recovery make it promising for sensitively monitoring various kinds of pathogenic bacteria in food safety.
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JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
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2025
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IF 3.1
Yijing Pan,Yi Xiao,Meiliang Zhu,Dongmei Guo,Kehong Ming,Shunshun Wang,Xianqiong Liu,Chunli Wang,Kang Xu
Ginger-processed Eucommiae Cortex (G-EC) is a traditional herbal preparation with a long history of clinical application. However, the lack of quantitative standards, undefined chemical transformation pathways, and unidentified quality markers (Q-markers) have hindered its modernization. In this study, we developed an integrated analytical strategy combining comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-TOF-MS), multivariate statistical analysis, and electronic nose (E-nose) technology to systematically investigate the volatile compound profile and sensory characteristics of Eucommiae Cortex (EC) before and after ginger processing. A total of 2806 volatile compounds were identified in G-EC, including 173 newly generated and 64 eliminated compared to EC. Sixty-five key flavor compounds were characterized, with enhanced woody, herbal, fresh, and minty notes in G-EC. E-nose analysis revealed distinct volatile signatures between EC and G-EC, with alkanes, alcohols, and sulfur-containing compounds as major differentiators. Furthermore, machine learning models combined with SHapley Additive exPlanations (SHAP) enabled accurate classification and interpretation of key chemical features. In conclusion, this study provides novel insights into the chemical transformation induced by ginger processing and offers a theoretical basis for the standardization and modernization of traditional Chinese medicine processing techniques.
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INTERNATIONAL JOURNAL OF PHARMACEUTICS
·
2019
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IF 4.213
Parikshit Banerjee,Tianjiao Geng,Arpan Mahanty,Tiantian Li,Li Zong,Bo Wang
The ‘repurposed drug,’ disulfiram (DSF), is an inexpensive FDA-approved anti-alcoholism drug with multi-target anti-cancer effect. However, the use of DSF in clinical settings remains limited due to its high instability in blood. In the present study, we created nanostructured lipid carriers (NLC) encapsulated DSF modified with d -α-tocopheryl polyethylene glycol 1000 succinate (vitamin E-TPGS). A spherical shape, superior drug encapsulation (80.7%), and decreased crystallinity of DSF were confirmed with results obtained from TEM, XRD, and DSC analysis. Addition of TPGS considerably improved the physicochemical stability profile of NLC-encapsulated DSF under the different conditions tested here. Furthermore, TPGS-DSF-NLCs outperformed unmodified DSF-NLCs and the free DSF solution by having significantly higher cytotoxicity, lower IC50 value (4T1: 263.2 nM and MCF-7: 279.9 nM), and an enhanced cellular uptake in MCF7 and 4T1 cell lines. In vivo anti-tumor analysis in 4T1 murine xenograft model mice revealed a significant (p-value < 0.05) decrease in tumor volume and higher tumor growth inhibition rate (48.24%) with TPGS-DSF-NLC treatment as compared to both the free DSF solution (8.49%) and DSF-NLC formulations (29.2%). Histopathology analysis of tumor tissues further confirmed a noticeably higher anti-tumor activity of TPGS-DSF-NLC through augmented cell necrosis in solid tumors. Hence, the present study established that addition of TPGS can synergize the anti-cancer activity of NLC-encapsulated DSF formulations, and thus, offer a promising anti-cancer delivery system for DSF.
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MICROCHIMICA ACTA
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2017
·Vol. 185
·期 1
·1-9
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IF 4.58
Zhu Tingfeng,Hu Yongjun,Yang Kang,Dong Ning,Yu Meng,Jiang Ningjing
The authors report on a surface-enhanced Raman scattering (SERS) nanoprobe for the specific detection of Escherichia coli O157:H7 ( E. coli O157:H7). Gold nanoparticles (AuNPs) were coated with a thick silica shell, and the Raman reporter (4,4′-dipyridyl) was embedded between gold nanoparticle and silica shell. This technique prevents any external effects on the AuNPs from the environment and avoids any interaction between the Raman reporter and possible impurities. Compared to the SERS nanoprobe of the conventional AuNP/AgNP type, the present nanoprobe can be applied in complex biochemical circumstances without aggregation because of its excellent stability. The SERS nanoprobeis stable for up to 50 h. The probe was applied to the SERS detection of E. coli O157:H7 by exploiting the Raman band peaking at 1612 cm −1 of 4,4′-dipyridyl (DP). The limit of detection is as low as 10 CFU·mL −1 . The technique was successfully employed to the detection of E. coli O157:H7 in real samples, achieving recoveries between 95.5 and 114.8%.
A novel surface-enhanced Raman scattering (SERS) nanoprobe based on the silica encapsulated gold nanoparticles (SEGNs) combining with the functionalized magnetic nanoparticles (MNPs), detecting E. coli O157:H7 with high sensitivity and specificity.
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APPLIED SURFACE SCIENCE
·
2021
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IF 6.707
Quanfeng Xing,Min Zhang,Xiuquan Xu,Bo Zhang,Yun Duan,Yi Wei,Jiahui Wang,Mingyang Li
Previous studies have proved that the promoted interactions with bacteria was closely responsible for the improved inactivation efficiency of photocatalysts. Herein, for the first time, the cationic polymer polyethyleneimine (PEI) grafted O-doped g-C 3 N 4 (denoted as PEI/OCN) was successfully fabricated by combination one-pot thermal-polymerization and subsequent covalent cross-linking reaction. Benefiting from the synergistic effect of O-doping and PEI-grafting, the obtained PEI/OCN possessed an extended and intensive visible light response, accelerated photogenerated charge transport, good hydrophilicity as well as enough electrostatic adhesion to bacteria. As a result, PEI/OCN exhibited a dramatically boosted reactive oxygen species (ROS) generation and outstanding rapid photocatalytic bactericidal capability, achieving 7.0 log CFU mL −1 inactivation efficiency of Escherichia coli ( E. coli ) within 30 min visible light exposure. Radical trapping and electron spin resonance (ESR) experiments revealed that superoxide radicals ( • O 2 − ) were crucially dominated the superior photocatalytic disinfection activity. Overall, the presented work provided a rationally designing of novel metal-free g-C 3 N 4 -based photocatalysts for efficient elimination of bacterial contaminations.
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CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
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2025
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IF 1.3
Kewei Wang,Xilong Qian,Ying Zhang,Zheng Liu,Weihua Zhang,Liu Zhou,Yanqiong Pan,Liwen Zheng,Fang Fang,Yang Zhang,Yehuang Wang,Bin Jiang,Shengjin Liu
Yuhuang Shengji ointment (YSO) is a traditional Chinese medicine clinical prescription from Professor Wang Yehuang, a famous Chinese medicine professor in Jiangsu Province China.It is used for the treatment of postoperative healing of anal fistula in clinic practice. It is composed of Corydalis Rhizoma, Radix Sanguisorbae Carbonisata, Natrii Sulfas, Alumen Ustum, Plant Soot and Borneolum. It has the effects of eliminating dampness, astringing sores, hemostasis, pain relief, detumescence and muscle regeneration. According to the characteristics that YSO mainly contains inorganic, organic and volatile components, the comprehensive quality control of the ointment was achieved by different analytical methods. The organic components in the ointment were qualitatively analyzed by UPLC-Q-TOF-MS to determine the main chemical components. HPLC fingerprint of the organic components of the ointment was further established. ICP-MS technology is used to analyze the inorganic elements in ointment, which provides data support for the quality control of inorganic components. The Flash GC e-nose is used for rapid detection of volatile substances in ointment, and the fingerprint of volatile components is established. The comprehensive use of these analytical techniques not only reflects the overall chemical characteristics of the ointment, but also helps to evaluate the consistency between different batches of products. This study successfully established a comprehensive quality analysis method, which provided a basis for the quality control of YSO. At the same time, it provides a more comprehensive quality control strategy for ointment which mainly contains organic, inorganic and volatile components.
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International Journal of Nanomedicine
·
2023
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IF 8
Yue Yang,Yunjian Li,Kai Chen,Ling Zhang,Sen Qiao,Guoxin Tan,Fen Chen,Weisan Pan
Purpose Poor site-specific delivery and insufficient intracellular drug release in tumors are inherent disadvantages to successful chemotherapy. In this study, an extraordinary polymeric micelle nanoplatform was designed for the efficient delivery of paclitaxel (PTX) by combining dual receptor-mediated active targeting and stimuli response to intracellular reduction potential.Methods The dual-targeted redox-sensitive polymer, folic acid-hyaluronic acid-SS-vitamin E succinate (FHSV), was synthesized via an amidation reaction and characterized by 1H-NMR. Then, PTX-loaded FHSV micelles (PTX/FHSV) were prepared by a dialysis method. The physiochemical properties of the micelles were explored. Moreover, in vitro cytological experiments and in vivo animal studies were carried out to evaluate the antitumor efficacy of polymeric micelles.Results The PTX/FHSV micelles exhibited a uniform, near-spherical morphology (148.8 ± 1.4 nm) and a high drug loading capacity (11.28% ± 0.25). Triggered by the high concentration of glutathione, PTX/FHSV micelles could quickly release their loaded drug into the release medium. The in vitro cytological evaluations showed that, compared with Taxol or single receptor-targeted micelles, FHSV micelles yielded higher cellular uptake by the dual receptor-mediated endocytosis pathway, thus leading to significantly superior cytotoxicity and apoptosis in tumor cells but less cytotoxicity in normal cells. More importantly, in the in vivo antitumor experiments, PTX/FHSV micelles exhibited enhanced tumor accumulation and produced remarkable tumor growth inhibition with minimal systemic toxicity.Conclusion Our results suggest that this well-designed FHSV polymer has promising potential for use as a vehicle of chemotherapeutic drugs for precise cancer therapy.
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CARBOHYDRATE POLYMERS
·
2026
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IF 12.5
Xiangyun Tan,Wenhao Yang,Chunjie Liu,Lijia Li,Fei Teng
We herein developed sodium alginate (SA)-chitosan (CS) dual-network liposome gel beads (S-C-L) using electrostatic complexation to co-deliver of folic acid (FA) and vitamin E (VE). The effects of varying SA-to-CS mass ratios (9:1, 8:2, 7:3, 6:4, 1:1, 4:6, and 3:7) on beads' microstructure, physicochemical traits, and encapsulation performance were systematically assessed. The findings indicated that even minimal CS incorporation markedly improved the mechanical strength, stability and overall functionality of the liposome gel beads compared with those made solely from SA (S-L). At a 9:1 SA-to-CS ratio, the beads displayed uniform, spherical shapes with compact crosslinked networks and achieved the highest encapsulation efficiencies (FA: 87.92%; VE: 92.94%). In addition, the SA-CS dual-network system allowed controlled lipid digestion and reversible structural transitions, supporting efficient intestinal release of both nutrients (FA: 86.57%; VE: 84.07%). Overall, this work offers a promising framework for designing carbohydrate-based dual-network liposome gels for the simultaneous delivery of hydrophilic and lipophilic bioactive components.
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Food Chemistry-X
·
2026
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IF 8.2
Lingshuai Meng,Yu Nie,Siyao Wu,Wei Li,Bangxi Zhang,Guangcan Tao,Tingting Zheng,Haijiang Chen,Dong Lin,Xu Song,Sen Cao,Su Xu
This study investigated the volatile organic compounds (VOCs) of Dictyophora rubrovalvata (DR) varying varieties and cultivation conditions by E -nose, GC-MS, GC-IMS, Multivariate Data Analysis (MDA). E-nose and PCA indicated overall volatile intensity as QY1-D (Qianyou-No.1-greenhouse) > QF1-L (Qianfeng-No.1-forest conditions) > QY1-L (Qianyou-No.1-forest conditions) > QF1-D (Qianfeng-No.1-forest greenhouse), GC-MS, GC-IMS analysis highlighted 12 and 35 key VOCs that OAV > 1. GC-MS was particularly sensitive to Hexanal and 2-Octenal, could effectively distinguish the environmental influences on VOCs. However, GC-IMS was sensitive to Ethyl acetate, Acetic acid, 3-Hydroxy-2-butanone and 3-Furanmethanol, and enabling it to not only differentiate the environmental impact on the VOCs but also varieties. Furthermore, MDA demonstrated the combination of GC-MS and GC-IMS were more comprehensively and accurately in characterizing the VOCs. Overall, QY1 exhibited a higher VOCs content than QF1. Besides, the greenhouse environment was more conducive to aroma enrichment in QY1, whereas the undergrowth environment was more beneficial for aroma enrichment in QF1.
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FOOD RESEARCH INTERNATIONAL
·
2023
·
IF 8.1
Yuanyuan Shao,Xiaoqiong Liu,Zhuoya Zhang,Pengxiang Wang,Kaikai Li,Chunmei Li
The unique flavor and aroma characteristics of huajiao were not only influenced by cultivated varieties, maturity, but also geographic origin. This study compared the terpenoids of 48 species of huajiao using headspace solid-phase microextraction–gas chromatography-mass spectrometry (HS-SPME-GC–MS) and electronic nose (E-nose). The E-nose results showed differences in huajiao from different origins and varieties, and from the PCA loading plots it was possible to conclude that some samples contained higher levels of hydrocarbons and alcohols, providing a preliminary discrimination between different species of huajiao. Further, GC-MS results showed that six key biomarkers could be used to distinguish red and green huajiao. Red huajiao in Central China contained more terpenoids than in other regions. Nine key biomarkers could be used to distinguish red huajiao from different regions. Oil huajiao exhibited a more distinct aroma in red huajiao. Green huajiao from Yunnan Province had more terpenoids than that from other provinces. The terpenoids content of Yunnan zhuyeqing was higher than other green huajiao. Heatmap analysis helped to find the most contributors of huajiao, which could be used as key terpenoids to differentiate huajiao of different regions or cultivars. Finally, through the correlation analysis of E-nose and GC-MS, it was found that the E-nose sensors could distinguish different huajiao by specific responses to some terpenoids in the samples.
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