นโยบายความเป็นส่วนตัว / นโยบายคุกกี้ × ส่งข้อมูลติดต่อสอบถามเสร็จสิ้น The classic assays for protein concentration in meals are classified as the Kjeldahl system and the Dumas method. These checks determine the total nitrogen in a sample. The only major component of most foods which is made up of nitrogen is protein (Unwanted fat, carbohydrate https://kennethx505gav3.izrablog.com/profile