FOOD HYDROCOLLOIDS
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2022
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IF 11.504
Zhenyu Yang,Jiakai Yan,Yanhua Duan,Lei Dai,Yanfei Wang,Qingjie Sun,David Julian McClements,Xingfeng Xu
Oil-in-water Pickering emulsions prepared by food-grade particles have gained increasing interest on account of their potential application in the delivery system for lipophilic active compounds. In this project, hydrolyzed rice glutelin (HRG) nanoparticles were successfully fabricated inducing by different concentrations of ethanol. The structure, interfacial properties of HRG nanoparticles, Pickering emulsion stability and in vitro gastrointestinal digestion characteristics were investigated. With ethanol concentration increasing from 25% to 100%, the Z-average diameter and surface activity of HRG nanoparticles increased firstly and then decreased, whereas the magnitudes of the ζ-potential and surface hydrophobicity increased. Quartz crystal microbalance with dissipation (QCM-D) indicated that HRG nanoparticles induced by ethanol with the concentration of 50% (HRG50) and 75% (HRG75) showed a more viscous interfacial film. HRG50- and HRG70-stabilized emulsions had better storage stability compared with other samples. Furthermore, the curcumin was loaded into Pickering emulsions using the pH-shift method. The light stability and gastrointestinal fate were assessed. Compared with curcumin-loaded HRG75-Pickering emulsion, HRG50-Pickering emulsion exhibited higher photochemical stability, whereas the lower FFAs release, bioaccessibility and transformation. This behavior was attributed to the thicker interfacial layer for HRG50 Pickering emulsion. This knowledge indicated that emulsion stabilized by HRG nanoparticles could be used as a delivery system to protect hydrophobic bioactive compounds . This research provided theoretical support to develop the utilization of HRG nanoparticles.
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Current Research in Food Science
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2022
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IF 6.269
Yong Chen,Jiajun Wang,Ziheng Jing,Jose M. Ordovas,Jing Wang,Lirong Shen
Demands for dietary supplements with anti-fatigue effects are growing fast due to increasing societal demands. Moreover, in highly physically active individuals, there are also significant needs for supplements to improve exercise performance. The present study evaluated the potential anti-fatigue and anti-oxidant effects of curcumin in mice using exhaustive swimming test. Male C57BL/6J mice were randomized into six groups: blank control (Rest), swimming control (Con), Vitamin C (Vc), low-dose curcumin (C 50 ), middle-dose curcumin (C 100 ), and high-dose curcumin (C 200 ). After a 4-week intervention, the mice in all groups except the Rest group were subject to an exhaustive swimming test. Then, mice were sacrificed to examine serum biochemical markers and fatigue-related enzymes. Moreover, the gene and protein expressions of signal transduction factors involved in the Nrf2/Keap1 signaling pathway were measured. The results indicated that curcumin significantly enhanced the exercise tolerance of mice in the exhaustive swimming test. Particularly, the swimming time of mice in the C 100 group was increased by 273.5% when compared to that of mice in the Con group. The levels of blood urea nitrogen, blood ammonia, lactic acid, creatine kinase and lactate dehydrogenase in the C 100 group were decreased by 13.3%, 21.0%, 18.6%, 16.7% and 21.9%, respectively, when compared to those of mice in the Con group. Curcumin alleviated exercise-induced oxidative stress and significantly enhanced the activities of superoxide dismutase, catalase and glutathione peroxidase by activating the Nrf2 signaling. These findings indicated that curcumin supplementation exerted remarkable anti-oxidant and anti-fatigue effects in mice, providing additional evidence supporting the use of curcumin as functional food, especially by those engaged in sports-related activities.
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Photodiagnosis and Photodynamic Therapy
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2022
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IF 3.577
Ying Zhang,Peiyuan Li,Rixiang Su,Fangzhou Wen,Zhiruo Jia,Yingbin Lv,Jinyun Cai,Wei Su
Overuse of antibiotics has led to the emergence of multidrug resistant (MDR) bacteria.. Photothermal (PTT) and photodynamic therapy (PDT) have may be effective alternatives for antibiotics in the treatment of bacterial infections. In this study, based on chitosan (CS)-coated gold nanoparticles, a pH stimulus-responsive drug delivery system was developed, which can anchor to the cell membrane for photodynamic therapy and photothermal therapy, and enhance the therapeutic potential of curcumin (Cur). Release experiments showed that AuNPs/CS-Cur nanocomposites released curcumin in a pH-dependent manner, which may facilitate the drug to be delivered to the acidic bacterial infection environment. CS as the outer layer covered on gold nanoparticles could improve the dispersibility of Cur in aqueous solution, gold nanoparticles prevent rapid photobleaching of curcumin, thus ensuring the yield of singlet oxygen under irradiation, and enhance the electrostatic binding with bacteria cell membrane. Under light conditions, AuNPs/CS-Cur can produce a large amount of reactive oxygen species and heat to kill S. aureus and E. coli . Compared with free Cur-mediated PDT, the complex significantly improved the synergistic PTT/PDT photoinactivation ability against S. aureus and E. coli . In addition, AuNPs/CS-Cur had good biocompatibility. Therefore, AuNPs/CS-Cur possessed the characteristics of electrostatic targeting, photodynamic and photothermal antibacterial therapy, which would become an efficient and safe antibacterial nano-platform and provide new ideas for the treatment of bacterial infection.
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EUROPEAN POLYMER JOURNAL
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2022
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IF 5.546
Hong Wang,Yanwei Zhang,Yaru Liu,Yi Ren,Jianhong Wang,Baolong Niu,Wenfeng Li
Cancer, a cause of high mortality in the world today, is a serious threat to the public health security of various countries. Targeted drug delivery systems with good biocompatibility have become a hot research topic in the field of cancer therapy. In this paper, HA-SS-PLGA copolymer was prepared using cystine (SS) containing disulfide bond as the linker, hyaluronic acid (HA) as the hydrophilic end and poly (lactic- co -glycolic acid) (PLGA) as the hydrophobic end. It will self-assemble in aqueous solution to form amphiphilic micelles with the hydrophilic end outside and the hydrophobic end inside. Among them, SS can react with glutathione in cancer cells by reduction, making the polymer reduction-sensitive. Then, reduction-sensitive Cur-HA-SS-PLGA nanoparticles loaded with Cur were prepared and characterized using curcumin as a model drug. The results showed that HA-SS-PLGA with pH sensitivity and good hemocompatibility could actively target to tumor cell surface overexpression receptors (CD44 receptors) and enter MCF-7 cells through endocytosis, and inhibit the proliferation of cancer cells after drug release. Therefore, the prepared HA-SS-PLGA is expected to be a good drug carrier in the field of cancer therapy.
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INTERNATIONAL JOURNAL OF PHARMACEUTICS
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2022
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IF 6.51
Chenlan Xu,Shuting Chen,Cuiping Chen,Yangcan Ming,Jiahao Du,Jinyi Mu,Fang Luo,Da Huang,Na Wang,Zhenyu Lin,Zuquan Weng
Co-delivery of anti-inflammatory drugs and reactive oxygen species (ROS) scavengers by stimuli-responsive oral nanoparticles is deemed to be a favorable strategy for inflammatory bowel disease (IBD) therapy. In this study, using micelles formed by CUR conjugated hydroxyethyl starch (HES) as vehicles, dexamethasone (DEX)-loaded HES-CUR nanoparticles (DHC NPs) with desirable size, negative surface charge, good stability in the harsh gastric environment, and excellent ROS scavenging activity are developed as a colon-targeted oral formulation for treating IBD. Due to the degradation of HES in response to α-amylase overexpressed in the inflamed colon, the DHC NPs release drugs in an α-amylase-responsive manner. Meanwhile, the DHC NPs can be effectively internalized by macrophages and show excellent cytocompatibility with macrophages since they are composed of food-derived compounds. Importantly, in vivo studies reveal that the DHC NPs are capable of targeting the inflamed colon induced by dextran sulfate sodium (DSS), and the targeted and combination therapy enhances the efficacy of free DEX and significantly relieves the impairment caused by DSS-induced ulcerative colitis. Incorporating the merits of targeted drug delivery and combined therapy with an anti-inflammatory drug and ROS scavenger, the DHC NPs are promising for developing novel oral formulations for IBD therapy.
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JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
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2022
·Vol. 102
·期 13
·5925-5934
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IF 4.125
Hedi Wen,Deju Zhang,Jingbo Liu,Xiaomin Shang,Xuanting Liu,Zhiyang Du,Ting Zhang
BACKGROUND In this study, a safe and relatively stable γ -cyclodextrin-lysozyme ( γ -CD-Lys) was synthesized using epichlorohydrin as the cross-linking agent, and curcumin was successfully encapsulated in γ -CD-Lys. RESULTS The successful Lys grafting onto γ -CD can be demonstrated by a high grafting ratio (79.02%) and was further confirmed by Fourier transform infrared (FTIR) band shifts and the new signal obtained at δ 2.75 in proton nuclear magnetic resonance. The encapsulation efficiency value of γ -CD-Lys was 76.74%, and the successful encapsulation of curcumin into γ -CD-Lys was confirmed by crystal structure change, increased melting point, and FTIR band shifts. The intermolecular bonds results suggested that associative forces between curcumin and γ -CD-Lys were electrostatic interaction, hydrogen bonds interaction, and hydrophobic interaction. The designed nanoparticles had excellent stability at low pH and low salt concentration. The release rate of these nanoparticles was inhibited in simulated gastric conditions, whereas it increased significantly in intestinal media. Simulated gastrointestinal digestion experiments further confirmed that nanoparticles showed higher bioaccessibility (86.05%) compared with curcumin (58.82%). CONCLUSION Overall, our study showed that the nanoparticles were highly promising for delivering curcumin because of their enhanced functional attributes and stabilization in acid or low salt environments. Also, it was an excellent wall material for targeting hydrophobic bioactive compounds in the intestinal tract via oral administration. © 2022 Society of Chemical Industry.
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JOURNAL OF CEREAL SCIENCE
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2022
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IF 4.075
Liping Ye,Wenquan Huang,Yuehua Deng,Zhiqiang Li,Yanbin Jiang,Qiuling Xie
Curcumin (Cur) has been widely studied for its chemo-preventive and chemotherapeutic effects against various types of human cancers, but the clinical application of curcumin is limited due to multiple delivery challenges, including poor water solubility, poor membrane permeability and easy degradation under alkaline conditions. Zein is an excellent carrier for pharmaceutical preparations because of its non-toxicity and biodegradability, but the plant protein source and hydrophobicity limit the application of zein in biomedical applications. The aim of this study is to overcome the limitations of Cur and zein in clinical therapy. To improve the hydrophilicity of zein and obtain a highly stable drug delivery system (DDS), zein was modified with carboxylated pluronic to prepare pluronic-zein (ZSP). The results indicated that the ZSP prepared not only has good hydrophilic and dispersibility properties, where the surface contact angle of the ZSP prepared is reduced by 33.1%–62.8%, but also its stability is not affected by pH and salinity compared with zein particles. After loading Cur into ZSP particles, Cur-ZSP DDS with good dispersibility and drug loading was prepared. Cur-ZSP DDS exhibited sustained release in the simulated in vitro environment. Cell experiments showed that ZSP presented as non-toxic. After loading with Cur, the cytotoxicity of Cur-ZSP DDS was significantly higher than that of raw Cur. The results provide new insight into the construction of zein-based oral drug delivery systems.
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ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
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2022
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IF 7.129
Sihong Li,Ruimeng Liu,Shun Xia,Gaoqiang Wei,Muhammad Ishfaq,Yixin Zhang,Xiuying Zhang
This study set out to assess the mitigative effects of curcumin on AFB1-induced necroptosis and inflammation in chicken liver. Ninety-six one-day-old AA broiler chickens were separated into four groups, including control group, AFB1 (1 mg/kg) group, curcumin (300 mg/kg) + AFB1 (1 mg/kg) group and curcumin (300 mg/kg) group. After 28 days treatment, livers were collected for different experimental analyses. The morphological observation results showed obvious necrotic characteristics, including cell swelling, rupture of cell and mitochondrial membranes and inflammation in chicken livers. AFB1 exposure increased oxidative stress index (ROS and MDA) and decreased the antioxidant activity markers (SOD, CAT and GSH) and ATPase activities in chickens’ liver. ELISA results showed that AFB1 exposure significantly induced the cytokines (TNF-α, iNOS, IL-6 and IL-1β) release from the liver tissues. While, western blot and qRT-PCR results showed that the protein and mRNA expressions of inflammatory (TLR4/myd88/NF-κB) and necroptosis (RIPK1/RIPK3/MLKL) genes were up-regulated by AFB1 exposure. We suspect that signal crosstalk between TLR4 and TNF-α triggers inflammation and RIPK1/RIPK3 mediating necroptosis in AFB1-induced chicken liver injury. Curcumin can regulate the TLR4/RIPK signaling pathway, reduced oxidative stress biomarkers and inflammatory cytokines levels and attenuated the expression of necroptosis and inflammation genes altered by AFB1 to reduce necroptosis of chicken liver tissue. In conclusion, curcumin can protect against AFB1-induced necroptosis and inflammation by TLR4/RIPK pathway in chicken liver.
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LWT-FOOD SCIENCE AND TECHNOLOGY
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2023
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IF 6
Yang Wang,Yuling Zhao,Rongrong Wu,Jingwen Gao,Menghan Chen,Yue Cui,Jianxiong Hao,Junhua Han,Karl Matthews
This study investigated the antifungal effect of curcumin-mediated photodynamic inactivation (PDI) with ascorbic acid (Vc) as a synergist on Penicillium italicum and its biofilms, and evaluated the efficacy in inactivating P. italicum on fresh-cut orange. Results showed that the number of P. italicum spores decreased by 4.61 Log CFU/mL when the concentration of curcumin, Vc and illumination time was 75 μmol/L, 250 mg/L and 20 min, respectively. After PDI treatment, the cell structure of P. italicum was destroyed and leakage of cell contents was observed. Mature P. italicum biofilms were formed after 72 h of incubation, and PDI could reduce the spores in biofilms by 3.23 Log CFU/mL. In addition, under the optimal photodynamic conditions, the number of P. italicum spores in fresh-cut orange decreased by 2.48 Log CFU/g, and the sensory quality was well maintained. In conclusion, curcumin-mediated photodynamic technology could better maintain the freshness of fresh-cut orange. Therefore, this study deepened the understanding of the antimicrobial efficacy of curcumin-mediated PDI on food borne pathogens and its impact on food quality.
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FOOD HYDROCOLLOIDS
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2023
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IF 10.7
Fan Feng,Jing Gao,Li Chen,Shengwei Xiao,Guobo Huang
The co-delivery of curcumin (CUR) with other polyphenol bioactives often has synergistic benefits. However, conventional co-encapsulation carriers formed by precipitation frequently exhibit limited loading properties, particularly for bioactives with different solubilities. In this study, we designed a highly efficient vehicle for the co-delivery of hydrophobic CUR and hydrophilic procyanidins (PCs), adopting a multiple interactions–based strategy via a two-step flash nanoprecipitation (FNP) process. The optimal nanoparticles (NP), composed of a Fe II crosslinked PCs/CUR nanocore (NC) and a soy protein isolates (SPI) shell, showed high individual encapsulation efficiency (∼95%) and a total loading content of ∼38%. Compared with the conventional production process, FNP endowed our NP with a small size (133 nm) and good uniformity (polydispersity index = 0.267). Ultraviolet–visible and Fourier transform infrared spectra revealed multiple interactions (coordination and hydrogen bonding) among the carrier materials and bioactives, which played a central role in achieving excellent loading properties for both PCs and CUR. The core–shell structure of the NP greatly enhanced the thermal–light stability of the encapsulated PCs and CUR. Synergistic antioxidation effect was found between PCs and CUR, and the nano-formulation further increased the antioxidation efficiency. In vitro release experiments showed the favorable pH responsiveness of our NP in the vast gastrointestinal pH gradient effectively preventing the leakage of wrapped bioactives in the stomach pH environment, which benefits the intestinal delivery of the bioactives. Our nanoparticulate co-delivery system fabricated using the FNP process provides new insights into the formulation strategy of multiple bioactives and shows great potential for application in the fields of functional foods and dietary supplements.
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Food Bioscience
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2023
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IF 5.2
Xiquan Li,Xiuling Zhang,Jiaxu Li,Wentao Zhang,Dezhuang Gong,Fengfeng Li
In the present study, nanocomplexes composed of perilla seed protein isolate (PSPI) and pectin (PEC) were assembled for the delivery of curcumin (Cur) based on the pH-driven self-assembly method. The encapsulation efficiency of Cur was 87.77%, and the PSPI-Cur-PEC exhibited controlled release of Cur during the in vitro digestion. Moreover, the PSPI-Cur-PEC possessed efficient antioxidant activity and provided greater defense for Cur against thermal treatment and ultraviolet irradiation. Fourier transform infrared spectroscopy , fluorescence spectroscopy and X-ray diffraction results indicated that entrapped Cur was existed in the form of amorphous state in PSPI-PEC, and the process was driven by hydrophobic effects, hydrogen bonding and electrostatic interactions. Scanning electron microscopy images revealed substantial morphological changes of the nanocomplexes throughout the process, while transmission electron microscopy images observed the core-shell structure of PSPI-Cur-PEC nanocomplexes. Furthermore, PSPI-PEC exhibited excellent biocompatibility by the in vitro cytotoxicity assay on Caco-2 cells, and the intermolecular interactions and possible formation mechanism of PSPI-Cur-PEC were further determined by molecular docking . This work elucidated that PSPI-PEC nanocomplexes assembled by a green and energy-efficient pH-driven method was feasible to protect sensitive hydrophobic bioactive components and provided a possible utilization of perilla seed protein in delivery system for nutraceuticals.
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Frontiers in Pharmacology
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2021
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IF 5.811
Lv Jinpeng,Yang Ying,Jia Bingyi,Li Siqi,Zhang Ximei,Gao Rongyin
The therapeutic use of curcumin and chemically modified curcumin (CMC) for suppressing melanogenesis and tyrosinase activity have been recognized. J147 is a modified version of curcumin with superior bioavailability and stability. However, there is no report about the effects of J147 on pigmentation in vitro and in vivo. In our studies, we investigated the hypopigmentary effects of J147 treatment on melanocytes and explored the underlying mechanism. The present studies suggested that J147 suppressed both basal and α-MSH-induced melanogenesis, as well as decreased melanocyte dendricity extension and melanosome transport. J147 played these roles mainly by activating the extracellular signal-regulated protein kinase (ERK) pathway. Once activated, it resulted in MITF degradation and further down-regulated the expression of tyrosinase, TRP-1, TRP-2, Myosin Va, Rab27a and Cdc42, ultimately inhibited melanin synthesis and melanosome transport. Furthermore, the hypopigmentary effects of J147 were demonstrated in vivo in a zebrafish model and UVB-induced hyperpigmentation model in brown guinea pigs. Our findings also suggested that J147 exhibited no cytotoxicity in vitro and in vivo. Taken together, these data confirmed that J147 may prove quite useful as a safer natural skin-whitening agent.
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