Each sachet of intestiflora contains 1g of a prebiotic , fructooligosaccharide , which acts as a nutrient source for the probiotic organisms , increasing the number and effectiveness of beneficial bacteria in the intestines 无限自我增殖?含有果寡糖，为益菌提供食物及理想生长环境，使益菌不断繁殖，加强益菌改善肠道健康的效能。
Sic raw material in producing each kind of derivative products of chitosan , n - acetyl - glucosamide , d - glucosamide , d - glucosamidehydrochloride , chitin - oligosaccharide , chitooligosaccharide etc . and is widely used in very kind of field 氨基葡萄糖盐酸盐甲壳素寡糖壳低聚糖等各种衍生物产品的基础原料,已在各个行业得到广泛的应用。
2 . label oligochitosan with dansyl hydrazine : 160mg oligochitosan solved in 1ml h2o was mixed with 2ml freshly prepared dansyl hydrazine and 1ml 3 % tca , then dry the mixture in vacuum centrifuge . 3 2丹磺酚盼标记壳寡糖： 160mg壳寡糖溶于lml水， 2mll新鲜配制的丹磺酚姘， lml3三氯乙酸，将上述三种物质混合，于真空离心机中干燥。
Chitin ' s partially deacetylated product is chitosan . unlike these polysaccharides , chitooligosaccharide and oligochitosan , which are the oligomer homologs of chitin or chitosan , are soluble and can be satisfactorily utilized 几丁质部分脱乙酰化产物是壳聚糖，它们的降解产物为几丁寡糖、壳寡糖，具有较好的水溶性，易于分散吸收。
Chitin and chitosan have been proved to be nontoxic , biodegradable , and biocompatible and are known to have various biological activities including antitumor activity , antimicrobial activity , antifunga ) activity , immune - enhancing effects 壳聚糖是几丁质不完全脱乙酰的产物。几丁质和壳寡糖具有多种生物效应，包括抑瘤、抗菌和免疫增强等。
It can act as plant function regulator , stimulate plant growth and resist to insect . so many aspects of oligochitosan " s functions have been discovered by researchers , but the mechanism is still unclear ( 5 )可作为植物功能调节剂，刺激植物生长，增强植物对病虫害的防御能力等。壳寡糖具有多种功能已被人们所普遍认同，但其确切的作用机制却并不十分清楚。
3 . different oligochitosan fragments showed different effect on oligochitosan uptake , suggesting receptor recognition dependent on the structure of oligochitosan 4 . competition studies showed that mannose inhibited oligochitosan internalization , while lps and p - glucan could not . 5 . inhibition of mannose - 2 .壳寡糖在巨噬细胞膜表面有特异性结合的受体( kd为2 . 1x10一sm ) ，可能为一廿露糖受体。
However , their high viscosity and insolubility in neutral aqueous solutions restrict their uses in vivo recent studies on chitosan have attracted interest for oligochitosan which is not only water - soluble , non - toxic , biocompatible but also possess versatile functional properties 但是它们的高粘度和在水溶液中的不溶性极大的限制了在体内的应用。于是低分子量、水溶性好、无毒且生物适应性好的壳寡糖逐渐得到了重视。
Then the mixture was incubated at 45 ? for 5h , then lyophilized . 6 . the combination between macrophage and oligochitosan labeled with amac : macrophage cells were co - cultured with amac labeled oligochitosan for 2min , 5min , 30min : the control group was treat 不同浓度的壳寡糖对巨噬细胞胞浆游离钙离子浓度的影响：巨噬细胞于37oc 、 5 co ， ’孵箱中培养24小时，冲洗后加入10wtol ifioo 3 am100ill ， 37避光孵育40分钟。
These interactions are primarily dependent upon the coordinated actions of ovarian progesterone and estrogen , moreover , many other factors , such as growth factors , cytokines , ecm , adhension molecules , oligosaccharides and proteases , regarded as local mediators , endometrium and embryo have also expressed some specific receptors , via intracellular signal transduction chains and express some key genes , making receptivity of the uterus and synchronized development of the embryo to the blastocyst stage 成功的植入是处于接受态的子宫内膜和具有侵入性的胚胎间的同步协调反应。植入过程受多种生长因子及其受体、细胞因子、粘附分子、蛋白水解酶、寡糖等的精细调控，通过胞内信号转导及关键基因的表达使子宫内膜发生一系列复杂变化。
