Date Range
Date Range
Date Range
1608;مطحون مع 250 غ سكر سنيدة قبة مسكة حرة 2 .
Science, Health, Safety and Environment Info. Wednesday, November 10, 2010. In 1926 James Sumner of Coernell University managed to isolate the enzyme urease from bean extract and then crystalin. In crystalline urease Sumner found a protein. Then John Northrop in 1930 crystalin trypsin and pepsin, John also found that the second enzyme is a protein. Program keselamatan dan kesehatan kerja merupakan usaha untuk menciptakan lingkun.
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