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脱氢醋酸(DHA)是一种食品防毒剂,与我国现有的防霉剂如苯甲酸等相比,它具有有效pH宽,防霉作用较强等优点。鉴于DHA早已被美国、日本、西德等国使用。国内经过近10年的研究,结果令人满意,不久也将有商品投入市场。现将国内外有关DHA的研究情况综述如下。一、DHA的一般性质DHA的化学名为3—乙酰基—6—甲基—脱(2)氢吡喃—脱(3)氢二酮,分子量为168.1,淡黄色粉末,易溶于甘油、丙酮等有机溶剂难溶于水,其溶液无色无味无嗅,并在20～130℃
Dehydroacetic acid (DHA) is a kind of food antivirus agent. Compared with the existing antifungal agents such as benzoic acid in our country, DHA has the advantages of wide effective pH and strong anti-mold effect. In view of the DHA has long been used by the United States, Japan, West Germany and other countries. After nearly 10 years of domestic research, the results are satisfactory, will soon have the goods into the market. Now the domestic and foreign research on DHA are summarized below. First, the general nature of DHA DHA chemical name is 3-acetyl-6-methyl - des (2) Hydropyran - off (3) hydrogen dione, molecular weight of 168.1, light yellow powder, soluble in glycerol, Acetone and other organic solvents insoluble in water, the solution colorless, odorless odorless, and at 20 ~ 130 ℃