The metabolite is soluble in water and insoluble in the organic solvent such as methanol, can be precipitated by acid, is positive with ninhydrin reaction and is considered as a kind of peptide
此物質溶於水,不溶於甲醇,可被酸沉澱,
茚三
酮反應為陽性,初步推斷此活性物質為多肽類物質。
Immobilization of polylysine ( pll ) onto hec and chitosan - coated membranes via activation reagents provided pll affinity membrane, respectively. a simple method for quantitative analysis of solid chitosan based on the ninhydrin reaction was achieved by diluting the reaction solution with 50 % ( v / v )
以高濃度的茚三酮顯色液與固體殼聚糖反應,再採用乙醇水溶液稀釋反應液的方法,解決了固載在基材上殼聚糖含量的測定問題。