茁霉多糖生物合成的研究进展

本文综述了茁霉多糖的生物合成,简单探讨了其生物合成的机理,并从发酵工艺入手,对通过各种发酵条件的对比,分析并讨论了生物合成的一系列优化结果。同时,简要介绍了茁霉多糖的一些理化性质以及它在工业上的生产应用,并讨论了其应用前景。     

黄原胶(Xanthan Gum)的特性、生产及应用

黄原胶是野油菜黄单孢菌分泌于胞外的中性水溶性多糖。由于其独特的流变性质而有着极其广泛的工业应用。介绍了黄原胶的生产、特性、降解以及应用,并对其应用潜力作了预测。     

黄原胶(Xanthan Gum)的特性、生产及应用*

黄原胶是野油菜黄单孢菌分泌于胞外的中性水溶性多糖。由于其独特的流变性质而有着极其广泛的工业应用。介绍了黄原胶的生产、特性、降解以及应用,并对其应用潜力作了预测。     

溶菌酶的研究进展

溶菌酶普遍存在于动物、植物和微生物中。溶菌酶是一种小分子碱性蛋白,长期以来一直被作为一种“模型”体系．用于研究蛋白质的空间构象、酶动力学及其与分子进化、分子免疫间的关系。介绍了溶菌酶的来源、结构、性质、作用机制。并对近年来其在食品工业、医学和酶工程中的应用进行了综述;分析了溶菌酶应用中存在的主要问题,并对其应用前景进行了展望。     

应用昆虫病原线虫防控白蚁的研究现状

昆虫病原线虫是防治白蚁极具潜力的生物杀虫剂,但其在白蚁防控中的应用效果有待进一步研究。本文综述了昆虫病原线虫及其共生细菌在白蚁防治中的应用研究进展,探讨了昆虫病原线虫防治白蚁应用存在的关键问题,并对其未来的研究方向进行展望。     

塔拉没食子酸的研究进展

塔拉为珍贵经济林木,豆荚富含单宁,其水解没食子酸可制取焦性没食子酸、没食子酸甲脂等系列产品。本文简单分析了塔拉市场现状,简述了没食子酸的四种制备方法,主要包括酸法、碱法、发酵法及酶法,并简单分析了四种制备工艺存在的主要问题,介绍了其在食品、化工、医药等领域的应用,并对没食子酸的制备与应用研究进行了展望。     

新型资源植物迷迭香的化学成分及其应用

迷迭香(Rosmarinus officinalis L.)系唇形科迭香属植物,本品原系香料植物,近年来大量用于药品、食品、化妆品及日用品等方面。本文对其化学成分及其应用进行了综述,并对其应用前景进行了展望。     

逆转录病毒载体的应用现状及前景展望

着重介绍逆转录病毒载体在基因治疗、外源基因表达、RNA干扰三方面的最新应用现状并对其应用前景进行展望,同时介绍了逆转录病毒载体存在的应用缺陷。     

能源作物续随子的综合利用和栽培

介绍续随子的药用价值,在工农业方面应用的价值,特别阐述续随子作为能源植物的应用前景,并对其繁殖栽培方法作了详细介绍。     

角蛋白酶的研究与应用前景

角蛋白酶(keratinase) 是一种可以特异性降解角蛋白的酶类,其来源广泛,多种微生物在羽毛降解过程中均可产生角蛋白酶。不同菌种来源的角蛋白酶,其结构、理化性质、活性和底物也不同。其在饲料行业、制革工业和环境废弃物处理等多个方面具有广泛的应用前景,能够产生巨大的社会效益和经济效益。本文系统总结了角蛋白酶的来源、分类、理化性质、作用机理及其在基因工程研究等方面的一些最新进展,简要介绍了其应用研究现状,并展望了角蛋白酶的应用前景。     

Unique analytical capabilities of laser scanning cytometry (LSC) that complement flow cytometry

Flow cytometry has become an indispensable instrumentation in many disciplines of biology and medicine. There are some limitations of flow cytometry, inherent to the fact that the cells are measured in flow, which limit its usefulness in some applications. The microscope-based laser scanning cytometer (LSC) has many features similar to flow cytometry but few restrictions of the latter and therefore it is useful in many new applications. This review briefly outlines the applications that are unique to LSC, particularly related to its morphometric capabilities and the possibility of cell relocation. Potential future applications of LSC are also discussed.     

植酸酶基因工程菌构建及其生产应用中问题分析

简要分析了植酸酶的生物学特性以及构建植酸酶基因工程菌和酶生产应用中存在的问题,提出了对植酸酶基因的重组改造、载体表达宿主筛选的方法和途径,以求构建高效表达、高活性和高稳定性的酶基因工程菌,促进酶的生产和应用。     

Chitosan derivatives obtained by chemical modifications for biomedical and environmental applications

Chitosan is a natural based polymer, obtained by alkaline deacetylation of chitin, which presents excellent biological properties such as biodegradability and immunological, antibacterial and wound-healing activity. Recently, there has been a growing interest in the chemical modification of chitosan in order to improve its solubility and widen its applications. The main chemical modifications of chitosan that have been proposed in the literature are reviewed in this paper. Moreover, these chemical modifications lead to a wide range of derivatives with a broad range of applications. Recent and relevant examples of the distinct applications, with particular emphasis on tissue engineering, drug delivery and environmental applications, are presented.     

植物基因转化技术在苹果遗传改良中的应用

近年来,苹果基因转化技术研究取得了较大进展,本文从转化体系,选择标记,报告基因及目的基因的遗传学行为等方面综述了苹果遗传转化研究发展现状,着重论述了其在苹果遗传改良中的应用,并对植物基因转化技术在莱果上的应用前景和应注意的几个问题进行了讨论。     

木聚糖酶的应用现状与研发热点

木聚糖酶是近年来应用日益广泛的工业用酶.本文综述了木聚糖酶在饲料、食品、造纸及能源等领域的应用现状与研发热点,展望了木聚糖酶的应用前景.     

Recent Progress in Polyhydroxyalkanoates‐Based Copolymers for Biomedical Applications

In recent years, naturally biodegradable polyhydroxyalkanoate (PHA) monopolymers have become focus of public attentions due to their good biocompatibility. However, due to its poor mechanical properties, high production costs, and limited functionality, its applications in materials, energy, and biomedical applications are greatly limited. In recent years, researchers have found that PHA copolymers have better thermal properties, mechanical processability, and physicochemical properties relative to their homopolymers. This review summarizes the synthesis of PHA copolymers by the latest biosynthetic and chemical modification methods. The modified PHA copolymer could greatly reduce the production cost with elevated mechanical or physicochemical properties, which can further meet the practical needs of various fields. This review further summarizes the broad applications of modified PHA copolymers in biomedical applications, which might shred lights on their commercial applications.     

A Service Approach for Architecting Application Independent Wireless Sensor Networks

The current sensor networks are assumed to be designed for specific applications, having data communication protocols strongly coupled to applications. The future sensor networks are envisioned as comprising heterogeneous devices assisting to a large range of applications. To achieve this goal, a new architecture approach is needed, having application specific features separated from the data communication protocol, while influencing its behavior. We propose a Web Services approach for the design of sensor network, in which sensor nodes are service providers and applications are clients of such services. Our main goal is to enable a flexible architecture in which sensor networks data can be accessed by users spread all over the world.     

光片荧光显微镜特点及其应用

传统荧光显微镜由于对某些荧光分子存在光毒性、光损伤等方面的缺陷,无法满足对部分活体样本进行长时间观测的需求。光片荧光显微镜（light sheet fluorescence microscope,LSFM）是一种新型荧光显微镜,有别于激光共聚焦显微镜,其特殊的正交光路设计和高效的信号采集装置,使其具备低光毒性、低光漂白、低光损伤和高时空分辨率等优良特性,从而能对细胞及大尺度生物组织样本进行时空连续性较好的记录,尤其适宜于活体生物样品。基于此,概述了光片荧光显微镜的成像原理、成像优势、成像效果的改进与优化历程及其在生命科学领域应用所取得的研究成果,重点对近三年相关应用进行了汇总,并简要介绍了其在神经生物学、发育生物学、动物细胞生物学和植物科学领域中一部分代表性研究内容,最后,总结了光片荧光显微镜的优点与发展至今仍存在的不足,并对其在光遗传学和多组学研究中的潜在应用进行了展望,以期为研究人员提供较为系统的光片荧光显微镜相关基础知识、最新的研究应用进展以及未来的潜在应用方向,为研究人员提供参考。     

二十一世纪的理想食品─螺旋藻

本文全面综述了螺旋藻的营养价值、保健功效、药用价值及其在水产养殖方面的应用 ,并展望了其开发前景。     

Gum ghatti: A promising polysaccharide for pharmaceutical applications

Gum ghatti (Anogeissus latifolia) or Indian gum is a complex non-starch polysaccharide. It has been widely employed in food, pharmaceuticals, paper and other industries primarily due to its excellent emulsification and thickening property. Other applications of gum ghatti are inadequately investigated owing to lack of information on it. Researchers in the recent years have shown a great interest in exploring its molecular structure and functional properties. This article is aimed at discussing the structural features, functional properties and applications of gum ghatti with an emphasis on its pharmaceutical potential.