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Proteomic studies of the effects of processing techniques on properties of abalone muscles: A comprehensive review

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Food Science and Human Wellness 2024年

作者： Yan Tian Shuyi You Yi zhang Baodong Zheng Hongliang Zeng College of Food Science， Fujian Agriculture and Forestry university Engineering Research center of Fujian-Taiwan Special Marine Food Processing and Nutrition， Ministry of Education Key Laboratory of Marine Biotechnology of Fujian Province， Institute of Oceanology， Fujian Agriculture and Forestry university Fuzhou Ocean Research Institute

Background: With the increasing per capita demand for animal protein， there is a growing interest in the abundant abalone protein resources. Abalone proteins are known for their nutritional and functional properties that contribute to flavor and texture. Scope and approach: We systematically constructed the relationship between abalone protein， processing， and proteomics. This paper reviews the nutritional properties of abalone proteins and evaluates the effects of different thermal processing techniques， non-thermal processing， and freezing on abalone proteins. In addition， we synthesize published abalone proteomics studies and the use of proteomics technology to better elucidate the quality changes of abalone and its products， and as a technical basis for the study of blue food marker proteins. It is important direction to clearly explain the protein composition and meat quality mechanism of abalone in the processing and storage by *** findings and conclusions: During various types of thermal processing， non-thermal processing， and freezing of abalone， the various chemical forces between protein molecules are disrupted， which in turn leads to different degrees of denaturation， aggregation， and gelation， which may have an impact on the organoleptic properties， bioavailability， and digestibility of abalone muscle. Proteomics is used in abalone biology studies to understand developmental biology， physiology， disease/stress， and species identification and can also be a powerful tool to characterize processing methods on abalone quality properties.

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Decomposition of Cellulose to Produce 5-Hydroxymethyl-Furaldehyde in Subcritical Water

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Transactions of Tianjin university 2008年第3期14卷 198-201页

作者：吕惠生李向科张敏华 Key Laboratory for Green Synthesis and Conversion of Ministry of Education of chinaR&D center for Petrochemical Technology Tianjin University

A method for decomposition of cellulose to produce 5-hydroxymethyl-furaldehyde （5- HMF） in subcritical water-carbon dioxide binary system was proposed. A series of experiments were performed in a batch reaction vessel. Main products of the decomposition of cellulose are 5-HMF, furfural, levulinic acid and 1, 2, *** optimum condition for the preparation of 5-HMF was found as 523.15 K, 5.0% carbon dioxide mole fraction, and 30 min reaction time. The addition of carbon dioxide to water conduced to the decomposition of cellulose to 5-HMF. As can be seen from the distribution of the prod-ucts, the decomposition mechanism of cellulose is similar to the hydrothermal reaction of D-glucose and D-fructose.

关键词： cellulose 5-hydroxymethyl-furaldehyde water-carbon dioxide binary system subcritical water

Investigation of the Interaction Between the Free Surface and A Semi/Shallowly Submerged Underwater Vehicle

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china Ocean Engineering 2024年第05期38卷 771-784页

作者： ZHU Xin-yao HAN Yue YANG Pu zhang Dai-yu School of Naval Architecture and Ocean Engineering Jiangsu University of Science and Technology Kunming Shipborne Equipment Research & Test center

The present study aims to investigate the interaction between the free surface and a semi/shallowly submerged underwater vehicle, especially when the submergence depth h is smaller than 0.75D(D: submarine maximum diameter). In this respect, the straight-ahead simulations of the generic SUBOFF underwater vehicle geometry are conducted with constant forward velocities using the Unsteady Reynolds-Averaged Navier-Stokes(URANS) equations with a ShearStress Transport(SST) k-ω turbulence model in commercial code Fluent, at submergence depths and Froude numbers ranging from h = 0 to h = 3.3D and from Fn = 0.205 to Fn = 0.512, respectively. The numerical models are verified against the existing experimental data. The analysis of the obtained results indicates that in the case of the semi and shallowly submerged underwater vehicle(UV), both the submergence depth and forward velocity have a great effect on the behaviors of hydrodynamic forces acting on the UV. The magnitude of maximum total resistance may reach almost five times the value of resistance exerted on the totally submerged hull. Both the forces acting on the UV and the generated waves when the submergence depth h is smaller than 0.75D are significantly different from those whenr h is larger than 0.75D. The conclusions can be used as reference for future research on near free surface motions of underwater vehicles and the design of small water-plane area twin hull.

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蜂窝纸板静态压缩试验研究及其模拟分析

包装工程 2010年第1期31卷 34-37,41页

作者：李鹏芳张珏卢朝晖曾志新华南理工大学广州510640 广东工业大学广州510640

对4种不同厚度的蜂窝纸板进行了静态压缩的完全加载和二次加载实验，结果表明：完全加载过程有4个明显的阶段；最大压力都为屈服力的2～3倍；30mm厚度的蜂窝纸板其屈服阶段占厚度的百分比最大；二次加栽的实验曲线分为3个阶段，可以有... 详细信息

对4种不同厚度的蜂窝纸板进行了静态压缩的完全加载和二次加载实验，结果表明：完全加载过程有4个明显的阶段；最大压力都为屈服力的2～3倍；30mm厚度的蜂窝纸板其屈服阶段占厚度的百分比最大；二次加栽的实验曲线分为3个阶段，可以有效消除蜂窝纸板的屈服强度峰值，改善蜂窝纸板的缓冲特性。ANSYS软件模拟分析表明：距离面纸1／5-2／5处的蜂窝纸芯最容易屈服变形；粘结处变形比各面上变形量大；中间部位易产生向内变形，而两端易产生向外变形。

关键词：蜂窝纸板二次加载力学性能 ANSYS

Efficient genome editing in rice with miniature Cas12f variants

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aBIOTECH 2024年第2期5卷 184-188页

作者： Zhengyan Ye Yuanyan zhang Shiqi He Shaokang Li Longjiong Luo Yanbiao Zhou Junjie Tan Jianmin Wan Sanya Institute of Nanjing Agricultural university State Key Laboratory of Crop Genetics&Germplasm Enhancement and UtilizationProvince and Ministry Co-sponsored Collaborative Innovation Center for Modern Crop ProductionNanjing Agricultural UniversityNanjing 210095China Zhongshan Biological Breeding Laboratory No.50 Zhongling StreetNanjing 210014China Key Laboratory of Southern Rice Innovation&Improvement Ministry of Agriculture and Rural Affairs/Hunan Engineering Laboratory of Disease and Pest Resistant Rice BreedingYuan Longping High-Tech Agriculture Co.LtdChangsha 410001China

Genome editing,particularly using the CRISPR/Cas system,has revolutionized biological research and crop *** the widespread use of CRISPR/Cas9,it faces limitations such as PAM sequence requirements and challenges in delivering its large protein into plant *** hypercompact Cas12f,derived from Acidibacillus sulfuroxidans(AsCas12f),stands out due to its small size of only 422 amino acids and its preference for a T-rich motif,presenting advantageous features over ***,its editing efficiency is extremely low in *** studies have generated two AsCas12f variants,AsCas12f-YHAM and AsCas12f-HKRA,demonstrating higher editing efficiencies in mammalian cells,yet their performance in plants remains *** this study,through a systematic investigation of genome cleavage activity in rice,we unveiled a substantial enhancement in editing efficiency for both AsCas12f variants,particularly for AsCas12f-HKRA,which achieved an editing efficiency of up to 53%.Furthermore,our analysis revealed that AsCas12f predominantly induces deletion in the target DNA,displaying a unique deletion pattern primarily concentrated at positions 12,13,23,and 24,resulting in deletion size mainly of 10 and 11 bp,suggesting significant potential for targeted DNA deletion using *** findings expand the toolbox for efficient genome editing in plants,offering promising prospects for precise genetic modifications in agriculture.

关键词： CRISPR/Cas Cas12 AsCas12f Rice Genome editing

FISTA框架下基于构造导向空变中值滤波的含异常噪声地震数据重建

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地球物理学报 2024年第7期67卷 2785-2801页

作者：张元鹏周辉张强方金伟中国地质科学院地球物理地球化学勘查研究所河北廊坊065000 国家现代地质勘查工程技术研究中心河北廊坊065000 中国石油大学(北京) 北京102249 深部岩土力学与地下工程国家重点实验室中国矿业大学江苏徐州221116

受实际环境、采集成本等因素的制约,野外观测的地震数据经常出现不规则缺失的现象.为了给后续地震资料处理和成像提供完整的数据,势必要对缺失地震道进行插值重建.基于稀疏变换的插值方法被广泛用于地震数据重建,但传统的基于稀疏变换... 详细信息

受实际环境、采集成本等因素的制约,野外观测的地震数据经常出现不规则缺失的现象.为了给后续地震资料处理和成像提供完整的数据,势必要对缺失地震道进行插值重建.基于稀疏变换的插值方法被广泛用于地震数据重建,但传统的基于稀疏变换的插值方法对异常噪声非常敏感,当采集数据中存在异常噪声时会严重影响该方法的重建精度.为了克服这一问题,本文在快速迭代阈值收缩算法(FISTA)框架中引入构造导向中值滤波技术,提出了一种能同时压制异常噪声并对缺失地震道进行高精度重建的插值方法.该方法在FISTA的每次迭代中都对地震信号沿其局部倾角方向进行中值滤波以衰减异常噪声并最大限度地保护有效信号不被损害.得益于此,新方法可对含异常噪声的欠采样地震数据进行高精度重建.模型和实际数据测试均表明,当采集数据存在异常噪声时,新方法在插值精度和稳定性方面均优于传统稀疏促进插值方法.

关键词：地震数据重建稀疏促进快速迭代阈值收缩构造导向中值滤波异常噪声

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海洋3-D地震分布/并行实时系统的设计

计算机工程 2002年第3期28卷 221-222页

作者：李之彦郑大军广东工业大学计算机学院广州510090 广州海洋地质调查局广州510760

文章提出一种用海洋处理机与网构成现场实时信息分布并行处理网,并通过无线与基地的信息处理中心Spectra3-DNT-P4 /Modem/构成远程实时在线技术支持平台的海洋地震调查质量控制系统的实现方法,并且并行分布网的资源结点()可动态配置和升... 详细信息

文章提出一种用海洋处理机与网构成现场实时信息分布并行处理网,并通过无线与基地的信息处理中心Spectra3-DNT-P4 /Modem/构成远程实时在线技术支持平台的海洋地震调查质量控制系统的实现方法,并且并行分布网的资源结点()可动态配置和升Internet/3-D/P4级。本方法也可用于其它地质野外作业项目。

关键词：海洋地质调查质量控制分布/并行实时系统计算机网络石油勘探

水解纤维素体系中离子液体和葡萄糖产物混合物的分离研究

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食品科技 2011年第1期36卷 206-210页

作者：章伟伟林鹿华南理工大学制浆造纸工程国家重点实验室广州510640

离子液体应用于纤维素水解的一个较大障碍是水解产物与离子液体的分离,包括离子液体的回收利用等,采取过滤、萃取的常规方法不能将可溶性低聚糖和离子液体分离。采用阳离子交换树脂则有望分离其混合体系。采用葡萄糖和离子液体的混合物... 详细信息

离子液体应用于纤维素水解的一个较大障碍是水解产物与离子液体的分离,包括离子液体的回收利用等,采取过滤、萃取的常规方法不能将可溶性低聚糖和离子液体分离。采用阳离子交换树脂则有望分离其混合体系。采用葡萄糖和离子液体的混合物水溶液作为模型,探索分离的最佳条件:1-丁基-3-甲基氯代咪唑(BMIMCl)浓度0.3mol/L,流速13.3mL/min,洗脱液盐酸浓度4moL/L,流速6.67mL/min,用量为2BV。将该方法应用于微晶纤维素水解产物的分离,得到还原糖的分离效率在70%以上。

关键词：离子液体葡萄糖分离

新型离子型尾式乙基咪唑基卟啉化合物的合成与表征

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分析测试学报 2010年第2期29卷 211-214页

作者：容利霞方岩雄张焜任清刚广东工业大学轻工化工学院广东广州510006

通过不对称的单羟基卟啉化合物、二溴烷烃、咪唑和溴乙烷反应,合成了一种新型的离子型尾式卟啉化合物——溴化5-对{4-[1-(3-乙基)-咪唑基]丁氧基}苯基-10,15,20-三苯基卟啉(Et-ImBPTPP)Br,并采用质谱、紫外光谱、红外光谱、热重分析、... 详细信息

通过不对称的单羟基卟啉化合物、二溴烷烃、咪唑和溴乙烷反应,合成了一种新型的离子型尾式卟啉化合物——溴化5-对{4-[1-(3-乙基)-咪唑基]丁氧基}苯基-10,15,20-三苯基卟啉(Et-ImBPTPP)Br,并采用质谱、紫外光谱、红外光谱、热重分析、元素分析、能谱和核磁共振氢谱对该化合物进行了结构表征。

关键词：离子型尾式卟啉乙基咪唑合成表征