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.

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In addition , the method of preparation, concentration and refining of pectic solution were also surveyed.

研究了果胶液的制备及浓缩精制工艺.

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The purification and assay methods for pectic enzymes are differed with various strains.

由于不同菌种产生的果胶酶成分复杂程度不同,分离纯化手段和分析方法也不相同.

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