油脂的氢化
油脂氢化是三酰基甘油的不饱和脂肪酸双键与氢发生加成反应的过程。油脂氢化分为全氢化和部分氢化,全氢化可生成硬化型氢化油脂,主要用于生产肥皂。部分氢化生成乳化型可塑性脂肪,用于加工人造奶油、起酥油。
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上一篇:The US dollar value of Chinese exports increased at an average rate of almost 18 percent perannum between 1978 and 1983 , while imports increased by approximately 11 percent per annum. As a result, the visible trade surplus rose sharply from U
The US dollar value of Chinese exports increased at an average rate of almost 18 percent perannum between 1978 and 1983 , while imports increased by approximately 11 percent per annum. As a result, the visible trade surplus rose sharply from U