防腐剂

For the first time, the applied function of Copper azole preservatives for bamboo preservation has been studied; the advantage and shortage of CuAz on bamboo preservation has been analyzed; the mechanism and approach for formulation optimization of CuAz have been proposed. Moso bamboo , which is abundant in china, was used as experimental materials in this thesis. These investigations laid the foundation for the exploitation of bamboo preservatives with independent intelligent property right, low toxicity and high performance, high quality and low overhead.

本论文以我国资源丰富的毛竹为试验材料，首次对铜唑类防腐剂（Copper Azole，简称CuAz）在竹材上的应用性能进行研究，分析了铜唑防腐剂应用于竹材防腐的优势和不足，总结了竹材的腐朽机理、药剂的防护机理和固着机理，提出了铜唑类防腐剂配方优化的机理和途径，为竹材防腐剂的研发、优化和改造提供科学依据。

But, there was little difference for the resistance to brown rot. 4 The decay resistance of ACQ and CuAz were close to CCA, and obviously superior than organic acid preservative.

通过对比，ACQ和铜唑类防腐剂的抗菌性与CCA相当，明显优于有机酸类防腐剂。

In order to optimize an effective combined preservative applied to the orange juice preservation, the authors studied the synergistic effect of biological and chemical combined preservative which contained Nisin, potassium sorbate, EDTA and sodium isoascorbate in preservation of orange juice compared to preservation effect of each aforementioned additive in individual use. Results show that the growth of microorganisms can not be inhibited completely using each aforementioned additive in single use.

该文以天然生物防腐剂乳酸链球菌素、化学防腐剂山梨酸钾、乙二胺四乙酸以及食品抗氧化剂异Vc钠为原料，对通过复配后得到的各组复合型防腐剂在橙汁保鲜中的协同增效作用进行研究，并且与单一的防腐剂保鲜效果进行比较，得出一组适合在橙汁中使用的高效复合型防腐剂。

It was briefly reviewed that high effect food preservative should possess molecule structure character,a sort of new preservative that was glyceryl monolaurate and its synthetical method were introduced too.

简单叙述了高效食品防腐剂应具备的分子结构特征，同时介绍了一处新的防腐剂—甘油单月桂酸酯的性质及合成方法。

Tsen-Fang Tsai pointed out that many cosmetic products have added environmental hormones, the most common is called the PABA preservatives, general practitioner in the breast tumor tissue, was found in preservatives such components.

蔡呈芳指出，许多化妆品都添加环境荷尔蒙，最常见的就是一种名为PABA的防腐剂，肿瘤科医师在乳癌组织内，就曾发现过这类防腐剂成分。

It is elucidated that natural and review products are the two main tendency of the future preservative development.

本文对国内常用食品防腐剂的生产、使用及对人体健康的影响进行综述，阐述了我国食品防腐剂的主要发展趋势为天然化和复合化。

The patent covers USANA's formulation for manufacturing Sensé products so that they are capable of maintaining their shelf life without the need for added chemical preservatives. The products are "self-preserving" in that they don't require traditional chemical preservatives to maintain their shelf life.

此专利权乃是以USANA 独家研发的科研保质技术，让Sensé护肤及个人护理系列产品，无须添加化工防腐剂，仍可在保存期限内保持品质，意指产品本身独特配方就能自我保质，不像一般传统制作方式，须靠化学防腐剂来维持保存期限的品质。

The kinds of problematic bacteria and its harmful influence on paper industry, and the basic requirement of biocide and the antiseptic mechanism are introduced. Finally the kinds of biocide in common use and the development trend of the biocide are discussed.

阐述了造纸工业使用杀菌防腐剂的意义，概括了影响纸和纸浆的主要微生物及其来源，探讨了防腐剂的作用机理、影响因素、使用要求和效果评价方法，介绍了造纸工业中常用的杀菌防腐剂及其应用概况，并展望造纸工业杀菌防腐剂的发展方向。

The paper used the method of paper papilioform in the microbiology to determine the antimicrobial cycle diameter of the mixed preservaties of different formul as that are composed of natural extraction with antimicrobial action, humectants, emulsifjers, preservatires and acidity regulators, and that of single preservative. The mixed formulas with strong antimicrbial power and big antibiogram were elected.

采用微生物学中的纸蝶法，、测定由具有抗菌作用的天然抽提物、水分保持剂、乳化剂、防腐剂以及酸度调节剂组成的不同配方的复配型防腐剂与单一型防腐剂的抑菌圈直径，筛选出抗菌力强、抗菌谱广的复配型配方。

Copper fixation rate affected by retention, fixation time, ligand type, and addictive. For all formulations, while other three conditions is the same, copper fixation rate of preservatives with low retention level is less than those with higher retention level; copper fixation rate of oven-dried bamboo samples is less than air-dried bamboo samples; copper fixation rate of amine-based preservatives is less than ammonia-based ones; copper fixation rate in some formulations containing carbonate and phosphate is higher than non-carbonate and non-phosphate ones.

在其它条件相同时，高吸药量时防腐剂的固着率明显高于低吸药量时的固着率；固着时间长的试样比固着时间短的试样具有更高的铜固着率；以氨水作配体的防腐剂固着性高于以乙醇胺作配体的；碳酸盐和磷酸盐在某些配方中能够改善防腐剂固着性。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。