纳他霉素

[ 介绍 ]
   Natamycin( Pimaricin ) is an antimycotic product which have broad and effective action.纳他霉素（Pimaricin）是一种抗菌药物，具有广泛而有效的作用。 It not only inhibits the growth of different moulds and yeasts, but also inhibits the production of their toxin.它不仅抑制了不同霉菌和酵母菌的生长，而且还抑制了其毒素的产生。 Commercial Natamycin contains 50% of the active substance.商业纳他霉素包含XNUMX％的活性物质。 Small quantities of Natamycin can inhibit all moulds and yeasts, which cause food spoilage.少量纳他霉素可以抑制所有霉菌和酵母菌，从而导致食物变质。 Natamycin has no effect on bacteria, so it does not prevent in the natural maturing process of yoghurt , cheese , fresh Ham, sausage, ect.纳他霉素对细菌没有作用，因此它在酸奶，奶酪，新鲜火腿，香肠等的自然成熟过程中并不能防止。
[分子式]   C
[分子量]     665.75
[物理特性]
  Natamycin is a white to yellow flavourless, odourless crystalline powder.纳他霉素是白色至黄色的无味，无味的结晶性粉末。 It is very stable with its crystal form.它的晶体形式非常稳定。 The solubility of Natamycin is very low in water and in most organic solvents.纳他霉素在水中和大多数有机溶剂中的溶解度非常低。 Only 50mg Natamycin can be dissolved in pure water at room temperature.在室温下，仅XNUMXmg纳他霉素可溶于纯水中。 The low solubility makes it very suitable for use on the surface of food.低溶解度使其非常适合在食品表面上使用。 Natamycin will stay on surface of food, where most moulds and yeasts may grow, but does not influence the natural course of fermentation inside.纳他霉素将停留在食物表面，大多数霉菌和酵母菌可能在食物表面生长，但不会影响内部发酵的自然过程。
[化学特性]
  As seen from the molecular structural, Natamycin is polyene macrolide antimycotic.从分子结构上看，那他霉素是多烯大环内酯类抗真菌药。 But it is very sensible to oxidation and ultraviolet radiation.但是对氧化和紫外线辐射非常敏感。
[微生物学特征]
   纳他霉素可以阻碍几乎所有的真菌（霉菌和酵母菌），但不能导致细菌，病毒或其他微生物。
[激活和稳定性] 
  许多因素会影响纳他霉素的稳定性：酸度（PH＆＃118alue），温度，光，氧，重金属等。
[用法]
  Food preservative.食品防腐剂。 Ideal result can be achieved by using Natamycin on the exposed surface of the food where the moulds and yeasts may grow.在食品中霉菌和酵母可能生长的裸露表面使用纳他霉素可以达到理想的效果。 This is especially useful for cheese manufacture, since the mould growth is prevented, while the cheese ripening bacteria will grow and metabolize normally.这对于奶酪的生产特别有用，因为可以防止霉菌的生长，而奶酪成熟的细菌会正常生长和代谢。 The product should be stored in dry, cool (not exceeding 15) places, in original sealed container, and prevent from direct sunlight.产品应存放在干燥，阴凉（不超过XNUMX个）的地方，并放在原始密封容器中，并避免阳光直射。
[应用标准]
  1.美国：FDA，§172. 155，2000：用200-300mg / kg的水溶液处理（喷雾或浸涂）干酪的表面。
  2.欧盟：允许在奶酪和香肠肠衣的表面上
  3.中国：GB2760-2001：用于奶酪，肉类和肉制品，月饼，小吃，涂层用原汁，器皿表面，易腐烂食品，色拉酱，发酵酒等。
   The FAO/WHO Joint Expert Committee on Food Additive confirmed the acceptable daily intake (ADI) if Natamycin as 0.3mg/KG (total body weight).粮农组织/世卫组织食品添加剂联合专家委员会确认，如果纳他霉素为XNUMXmg / KG（总体重），则可接受的每日摄入量（ADI）。 This was also endorsed by the EU.欧盟也对此表示赞同。 In China its use is permitted in the food industry.在中国，允许在食品工业中使用。