2) pectin fruit jelly
加果胶的果冻
3) pectin grade
果胶的胶凝度
4) degree of sizing
纸张上胶的效果
5) pectin
[英]['pektɪn] [美]['pɛktɪn]
果胶
1.
Research on technology of extracting pectin from pericarp of orange;
柑桔皮中果胶的提取工艺研究
2.
Antibacterial activity of Gongcheng persimmon peel′s pectin hydrolysates;
恭城月柿皮果胶酶解物的抑菌活性初探
3.
Study on Optimizing the Technology of Extracting Pectin from the Peel of Navel Orange in Southern Jiangxi by Orthogonal Design;
正交设计法优化提取赣南脐橙皮中果胶的工艺研究
6) apple pectin
苹果果胶
1.
Study on the structure,monosaccharide composition and stability of apple pectin
苹果果胶的结构、单糖组分和稳定性研究
2.
6% of methylation which was obtained by chemical hydrolysis of apple pectin.
以苹果果胶为原料,通过化学法制得甲酯化为26。
3.
In this paper, oligogalacturonic acid was prepared by four different pectases hydrolysis of apple pectin and pectic acid, wherein, the optimum pectase was Pectinex XXL, the optimum substrate was pectic acid, and the optimum reaction conditions were: pH 5.
本文以来源丰富、价格低廉的商品苹果果胶为原料,用4种不同的商品果胶酶水解果胶和果胶酸制备寡聚半乳糖醛酸,通过多次对比试验,筛选得到产寡聚半乳糖醛酸的最佳果胶酶PectinexⅩⅩL,其优势底物为果胶酸,最佳条件为pH 5。
补充资料:果胶
| 果胶 pectin 一类多糖的总称。存在于植物的细胞壁和细胞内层,为内部细胞的支撑物质。柑橘、柠檬、柚子等果皮中约含30%果胶,是果胶的最丰富来源。按果胶的组成可有同质多糖和杂多糖两种类型:同质多糖型果胶如D-半乳聚糖、L-阿拉伯聚糖和D-半乳糖醛酸聚糖等;杂多糖果胶最常见,是由半乳糖醛酸聚糖、半乳聚糖和阿拉伯聚糖以不同比例组成,通常称为果胶酸。不同来源的果胶,其比例也各有差异。部分甲酯化的果胶酸称为果胶酯酸。天然果胶中约20%~60%的羧基被酯化,分子量为2万~4万。果胶的粗品为略带黄色的白色粉状物,溶于20份水中,形成粘稠的无味溶液,带负电 。果胶广泛用于食品工业,适量的果胶能使冰淇淋、果酱和果汁凝胶化。 |
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