以上来源于: WordNet
N-MASS Pectin is a substance that is found in fruit. It is used when making jelly and jam to help it become firm. 果胶
Pectins are demonstratet by staining with ruthenium red.
可以用钌红来鉴定果胶。
The pectic substances can be classed protopectins, pectins and pectin acids.
果胶物质分成原生质果胶，果胶和果胶酸。
Pectins we need maily depend on importation, which increases production cost and resource dependance.
我国各行业所需果胶基本上依靠进口，增加了生产成本和资源依赖性。
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