天然壳

Chitosan, a kind of natural polymer derived from arthropod shell, belongs to nonpoisonous and pollution-free security animal hormone substance.

天然聚合物壳聚糖是由节肢动物的外壳提取的、无毒、无污染的动物源激素物质。

The experimental results show that the extract yield of Zanthorylum bungeanum oil from nucleus and shuck is 7.8% and 48.9%,respectively.

花椒油是从花椒籽核和壳中提取的一种天然挥发油，其成分以烯烃为主，随产地不同有

Chitosan was modified by reaction with ammonium thiocyanate and chloroacetic acid.

壳聚糖是甲壳素的脱乙酰基产物[1]，它以其来源广泛、天然无毒、可生物降解的特性，在水处理中的应用较为广泛。

The hotspot in chitosan study is to increase its solubility and the adsorptive capability of Cu.

壳聚糖是一类带阳离子的动物纤维素和自然界唯一天然碱性多糖(图1)。

Now MSC become the chief seed-cell in cartilage tissue engineer, but the technology to stimulate MSC differentiate into chondroblast is not very successful,,the standard technology is culture the cell-ball in centrifuge tube,the reconstructured cartilage-like tissue is not achieve the mechanics of hyaline cartilage.

软骨组织工程的材料学研究主要体现在两类基质材料方面的进展，一类为天然基质材料，如胶原、壳聚糖、纤维素等；一类为人工合成可降解材料，如PGA、PLA等，但两者在来源、塑形能力及细胞识别信号等方面存在不足。

Chitosan is a biopolymer, which contains high contents of amino and hydroxyl active functional groups, can be conjugated with heavy metal ions. And because of its advantages such as nontoxic, no second contamination, easy to depolymerize, it is paid more and more attention by scientific researchers.

壳聚糖作为一种天然高分子化合物，高分子段链中含有-OH、-NH2活性基团，可与重金属离子形成配合物，而且由于其无毒，不产生二次污染，生物降解性好的优点，在废水处理中的应用越来越受到科研工作者的关注。

BACKGROUND: Chitosan and its derivant are environmental-friend natural macromolecular materials, characterizing by great flocculation and adsorption capacities caused by electrophilic group including amino and hydroxyl groups, as well as its long-chain molecular structure. So chitosan is widely used as flocculants in domains of sewage disposal, food refining as well as Chinese medicine purification.

背景：壳聚糖及其衍生物是环境友好的天然高分子材料，其分子中丰富的带电基团如氨基、羟基以及长链分子结构赋予其优良的絮凝吸附能力，被作为絮凝剂广泛用于工业用水、食品精制以及中药液纯化等领域。

To improve the stability of small unilamellar vesicles in vitro, the permeability of SUV from soybean phosphatidylcholine coated by collagen and chitosan was studied respectively by using 5(6)-Carboxyflourescein5(6-CF as a fluorescence probe.

为了提高小单层脂质体（SmalUnilamelarVesicles，SUV）的体外稳定性，以5（6）－羧基荧光素（5（6）－CF）为荧光探针，研究了脂质体被胶原蛋白和壳聚糖这两种天然生物大分子包覆后的通透性。

Based the head quarter in Hamburg Germany, ALW subsidiaries are located also in Beijing/China, Hong Kong/China, Hungary, Romania",,"滚制糖果用预涂层粉 precoating agent:酸粉 Quick acid ;抛光剂polishing agent;密封剂sealing agent ;防粘油 Antisticking agent;阿拉伯胶Gum arabic,纤维素 Quick Fibre 明胶替代品: Gelatine-subsitute for chewy confectioneries

Wolff GmbH 有限公司，始终不渝的为用户提供优质天然的食品原料，以总部德国为中心，在中国北京，中国香港，匈牙利，罗马尼亚，阿根廷，墨西哥，美国等设有生产工厂和分公司，产品和服务遍及全球。&快壳好&的品牌已为世界各地客户所欢迎和使用。

Royal Dutch Shell and China National Petroleum yesterday announced plans to jointly develop natural gas deposits in China, as the Anglo-Dutch group seeks to strengthen its ties with the world's second-biggest energy consumer.

昨天荷兰皇家壳牌石油和中国石油天然气集团宣布，计划联合开采中国天然气田。这家英荷集团努力加强与世界第二大能源消费国的联系。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。