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Abscisic acid-mediated cytosolic Ca^(2+) modulates triterpenoid accumulation of Ganoderma lucidum

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2023年第12期24卷 1174-1179页

作者： Meilin CUI yitao zhao Xiuhong ZHANG Wei zhao College of Food Science Shanxi Normal UniversityTaiyuan 030031China

Ganoderma lucidum is a mushroom widely used for its edible and medicinal *** bioactive constituents of *** are ganoderic triterpenoids(GTs),which exhibit important pharmacological *** acid(ABA),a plant hormone,is associated with plant growth,development,and stress *** can also affect the growth,metabolism,and physiological activities of different fungi and participates in the regulation of the tetracyclic triterpenes of some *** findings indicated that ABA treatment promoted GT accumulation by regulating the gene expression levels(squalene synthase(sqs),3-hydroxy-3-methylglutaryl-CoA reductase(hmgr),and lanosterol synthase(ls)),and also activated cytosolic Ca2 ***,under ABA mediation.

关键词： properties promoted finding

茶梗儿茶素的制备及其对蚕丝织物的染色和功能改性

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现代纺织技术 2024年第6期32卷 1-8页

作者：方娇娇赵培宏赵宜涛邓书义陈新曹红梅常州大学药学院江苏常州213164 常州纺织服装职业技术学院江苏省特种功能纺织材料工程研究中心江苏常州213164 苏州大学纺织行业天然染料重点实验室江苏苏州215123

为提高茶梗废弃物的利用率,从中提取天然色素用于蚕丝织物的染色和功能改性。采用LC-MS、FTIR以及UV对茶梗提取物进行结构鉴定及表征;探究染色时间、染色温度、染色pH值等工艺参数对染色蚕丝颜色性能的影响,比较铁观音茶梗、铁观音茶叶... 详细信息

为提高茶梗废弃物的利用率,从中提取天然色素用于蚕丝织物的染色和功能改性。采用LC-MS、FTIR以及UV对茶梗提取物进行结构鉴定及表征;探究染色时间、染色温度、染色pH值等工艺参数对染色蚕丝颜色性能的影响,比较铁观音茶梗、铁观音茶叶、高山绿茶的提取物对蚕丝织物的染色性能以及抗紫外、抗氧化性能差异。结果表明:该茶梗提取物主要成份为儿茶素,对蚕丝染色的最佳工艺条件为染色时间70 min、染色温度80℃、染色pH值为7.5;3种不同来源儿茶素染色性能相比,铁观音茶梗儿茶素染色蚕丝的表面得色量稍高,色牢度三者相当;3种儿茶素染色蚕丝的抗氧化和抗紫外性能较未处理蚕丝有大幅度提高,直接染色蚕丝的紫外防护系数UPF值均大于150,抗氧化活性均大于60%;采用铝离子前媒染后染色蚕丝的UPF值均大于230,抗氧化活性均大于70%,铁观音茶梗儿茶素染色蚕丝的抗紫外性能优于另外两种茶叶,抗氧化性能比绿茶低、与铁观音绿茶相当。

关键词：天然染料儿茶素蚕丝织物抗氧化性抗紫外性

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姜黄素与木犀草素对蚕丝的拼色及功能改性

印染 2024年第3期50卷 24-28,54页

作者：赵培宏方娇娇赵宜涛王亚楠陈新曹红梅常州大学药学院江苏常州213164 常州纺织服装职业技术学院江苏省特种功能纺织材料工程研究中心江苏常州213164 纺织行业天然染料重点实验室苏州大学江苏苏州215123

从姜黄中提取天然多酚类姜黄素化合物作为色素,对提取物进行结构鉴定和表征,并将其与木犀草素拼染,探讨了拼染的协同效应与机理。结果表明:姜黄提取物的主要成分为姜黄素类化合物;将其与木犀草素拼混对蚕丝织物进行染色,可呈现出与直接... 详细信息

从姜黄中提取天然多酚类姜黄素化合物作为色素,对提取物进行结构鉴定和表征,并将其与木犀草素拼染,探讨了拼染的协同效应与机理。结果表明:姜黄提取物的主要成分为姜黄素类化合物;将其与木犀草素拼混对蚕丝织物进行染色,可呈现出与直接染色不同的黄色色泽;拼染蚕丝织物的各项色牢度可达3级以上;抗氧化、抗紫外和抑菌性能均有明显提升。1%(omf)姜黄素类化合物和2%(omf)木犀草素拼色染色的蚕丝织物抗氧化性达90%以上,UPF值为191.44,抑菌带宽度为0.45 cm以上。

关键词：姜黄素木犀草素天然染料染色功能改性蚕丝

Zn_(x)Zr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide

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Frontiers of Chemical Science and Engineering 2023年第4期17卷 404-414页

作者： Junjun Cheng yitao zhao Guohao Xu Peng Zhang Xuedong Zhu Fan Yang Engineering Research Center of Large-Scale Reactor Engineering and Technology Ministry of EducationEast China University of Science&TechnologyShanghai 200237China

Alkylation of benzene with carbon dioxide and hydrogen to produce toluene and xylene could increase the added-value of surplus benzene as well as relieve environmental problems like green-house *** this work,the alkylation benzene with carbon dioxide and hydrogen reaction was proceeded by using the mixture of zinc-zirconium oxide and HZSM-5 as bifunctional *** equivalent of Zn/Zr=1 displays the best catalytic performance at 425℃ and 3.0 MPa,and benzene conversion reaches 42.9%with a selectivity of 90%towards toluene and ***,the carbon dioxide conversion achieves 23.3%and the carbon monoxide selectivity is lower than 35%,indicating that more than 50%carbon dioxide has been effectively incorporated into the target product,which is the best result as far as we *** with characterizations,it indicated that the Zn and Zr formed a solid solution under specific conditions(Zn/Zr=1).The as-formed solid solution not only possesses a high surface area but also provides a large amount of oxygen ***,the bifunctional catalyst has excellent stabilities that could keep operating without deactivation for at least 80 *** work provides promising industrial applications for the upgrading of aromatics.

关键词： carbon dioxide alkylation of benzene solid solution catalyst bifunctional catalyst

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基于Socket接口的局域网聊天系统设计

长江信息通信 2024年第4期37卷 109-111页

作者：李向江赵怡涛马雪凝宁波财经学院数字技术与工程学院浙江宁波315175

文章在对TCP/IP通信协议研究的基础上,设计一种基于Java平台的局域网即时聊天系统,系统利用Wi-Fi局域网络,采用C/S框架,各Java客户端基于Socket传输文本消息,能够实现注册、登录、在线聊天以及离线消息获取等功能。本系统还采用了多线... 详细信息

文章在对TCP/IP通信协议研究的基础上,设计一种基于Java平台的局域网即时聊天系统,系统利用Wi-Fi局域网络,采用C/S框架,各Java客户端基于Socket传输文本消息,能够实现注册、登录、在线聊天以及离线消息获取等功能。本系统还采用了多线程技术实现多客户端与服务器的并发式通信,能有效地提高网络资源利用率,以此来缓解服务器的通信压力。

关键词： Socket 局域网聊天系统 Java语言

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红曲糟制曲条件优化及米曲霉产酶条件研究

中国酿造 2024年第9期43卷 124-129页

作者：赵燚涛梁璋成何志刚任香芸林晓姿李维新福建省农业科学院农产品加工研究所福建福州350003 福建省农产品(食品)加工重点实验室福建福州350003

该研究以红曲糟为原料,以米曲霉(Aspergillus oryzae)MJY2-5为发酵菌种,通过固态发酵制备成品曲,以中性蛋白酶及谷氨酰胺酶酶活力为评价指标,采用单因素和正交试验优化红曲糟制曲条件;以酶解率为指标,研究米曲霉MJY2-5最佳产酶条件。结... 详细信息

该研究以红曲糟为原料,以米曲霉(Aspergillus oryzae)MJY2-5为发酵菌种,通过固态发酵制备成品曲,以中性蛋白酶及谷氨酰胺酶酶活力为评价指标,采用单因素和正交试验优化红曲糟制曲条件;以酶解率为指标,研究米曲霉MJY2-5最佳产酶条件。结果表明,米曲霉MJY2-5固态发酵制曲的最优条件为红曲糟与麸皮质量比4∶6、发酵温度32℃,发酵时间72 h,初始pH值6.7。在此优化条件下,米曲霉MJY2-5产中性蛋白酶、谷氨酰胺酶的酶活力分别为(1 891.79±6.34)U/g、(19.96±0.44)U/g。米曲霉MJY2-5产酶最佳条件为初始pH值5.5,酶解温度47℃,酶解时间6 h。在此优化条件下,酶解率为(63.42±0.98)%。

关键词：红曲糟固态制曲制曲条件优化米曲霉MJY2-5 产酶条件优化

Study on the onset temperature of a standing-wave thermoacoustic engine based on circuit network theory

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Science China(Technological Sciences) 2012年第10期55卷 2864-2868页

作者： QIU LiMin LAI BiHui zhao yitao SUN DaMing ZHANG XueJun LI YanFeng Institute of Refrigeration and Cryogenics Zhejiang UniversityHangzhou 310027China

Onset mechanism is one of the most fundamental issues in thermoacoustic ***,the onset conditions and the phenomena happening in the onset process have not been well explained *** this paper,a novel model based on the circuit network analogy is proposed to predict the onset temperature of a standing-wave thermoacoustic *** activity and instability criteria are proposed to be the onset criteria in the *** influences of the porosity of the heat exchanger and the stack,and the length of the resonant tube on the onset temperature are *** calculated results are in agreement with the experimental results,which indicates that the activity and instability criteria can be used to predict the onset conditions of a thermoacoustic engine.

关键词： standing-wave thermoacoustic engine activity criterion instability criterion onset temperature

Anti-oxidant anti-inflammatory and antibacterial tannin-crosslinked citrate-based mussel-inspired bioadhesives facilitate scarless wound healing

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Bioactive Materials 2023年第2期20卷 93-110页

作者： Keke Wu Meimei Fu yitao zhao Ethan Gerhard Yue Li Jian Yang Jinshan Guo Department of Histology and Embryology NMPA Key Laboratory for Safety Evaluation of CosmeticsSchool of Basic Medical SciencesGuangdong Provincial Key Laboratory of Bone and Joint Degeneration DiseasesThe Third Affiliated Hospital of Southern Medical UniversitySouthern Medical UniversityGuangzhouChina Department of Biomedical Engineering Pennsylvania State UniversityUniversity ParkPA16802USA

The revolutionary role of tissue adhesives in wound closure,tissue sealing,and bleeding control necessitates the development of multifunctional materials capable of effective and scarless *** contrast to the use of traditionally utilized toxic oxidative crosslinking initiators(exemplified by sodium periodate and silver nitrate),herein,the natural polyphenolic compound tannic acid(TA)was used to achieve near instantaneous(90%bacterial death upon near-infrared(NIR)irradiation).In vivo evaluation in both an infected full-thickness skin wound model and a rat skin incision model demonstrated that 3A-TCMBAs+NIR treatment could promote wound closure and collagen deposition and improve the collagen Ⅰ/Ⅲ ratio on wound sites while simultaneously inhibiting the expression of pro-inflammatory ***,phased angiogenesis was observed via promotion in the early wound closure phases followed by inhibition and triggering of degradation&remodeling of the extracellular matrix(ECM)in the late stage(supported by phased CD31(platelet endothelial cell adhesion molecule-1)PDGF(platelet-derived growth factor)and VEGF(vascular endothelial growth factor)expression as well as elevated matrix metalloprotein-9(MMP-9)expression on day 21),resulting in scarless wound *** significant convergence of material and bioactive properties elucidated above warrant further exploration of 3A-TCMBAs as a signific

关键词： Anti-oxidant Hydrogen bond crosslinking Phased angiogenesis Scarless wound healing Tannic acid

晶种辅助预晶化法合成纳米ZSM-5分子筛及其在丙烷芳构化反应中的应用

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低碳化学与化工 2024年第2期49卷 67-73,104页

作者：王晗斌张鹏杨帆刘新辉庄建国赵溢涛朱学栋华东理工大学化工学院大型工业反应器工程教育部工程技术研究中心上海200237

在丙烷芳构化反应中,常规分子筛催化剂易积炭失活,导致催化性能及使用寿命均不理想。采用全硅分子筛Silicalite-1(S-1)作为晶种,结合晶种法和预晶化法合成了纳米ZSM-5分子筛(ZSM-5-Nano)。采用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(... 详细信息

在丙烷芳构化反应中,常规分子筛催化剂易积炭失活,导致催化性能及使用寿命均不理想。采用全硅分子筛Silicalite-1(S-1)作为晶种,结合晶种法和预晶化法合成了纳米ZSM-5分子筛(ZSM-5-Nano)。采用扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)和N2物理吸/脱附表征了ZSM-5-Nano的结构。结果表明,ZSM-5-Nano是由粒径为50 nm左右的小颗粒堆积而成的,其比表面积高达395 m^(2)/g,同时富含晶间介孔。将ZSM-5-Nano负载Zn后得到催化剂Zn-ZSM-5-Nano,然后在固定床反应器中评价了该催化剂在丙烷芳构化反应(n(N_(2)):n(C_(3)H_(8))=7:3、空速为3000 h^(-1)、反应温度为550℃)中的催化性能。结果表明,Zn/ZSM-5-Nano拥有相对温和的酸性质,在丙烷芳构化反应中表现出了良好的催化性能,5 h内的丙烷转化率和轻芳烃(苯、甲苯和二甲苯)选择性分别高达88.4%和86.7%,且在5 h内基本不失活,催化性能优于微米ZSM-5分子筛(水热法)负载Zn催化剂和纳米ZSM-5分子筛(预晶化法)负载Zn催化剂。构效分析结果表明,Zn/ZSM-5-Nano的形貌和酸性共同作用提升了其催化性能,更短的扩散距离和更温和的酸性有效延缓了积炭的生成。

关键词：丙烷芳构化晶种辅助预晶化法纳米纳米ZSM-5分子筛