![src="http://portal.page1.co.kr/content_images/weekly_100420_img_01.jpg"]() 꼺 Ǵ ī Ǻο ջ   ־  ǰ 䱸ȴ.
  
    꼺 Ǵ ī Ǻο ջ   ־  ǰ 䱸ȴ. 
ǰǾǰû ѱҺڿͰ յ ϹݸƮ, Ȩ  ߿ Ǵ   23ǰ  pH  Է 
˻ , ǰ  5ǰ  ó  ȸ ġߴٰ 28 . 
ȭǰ зǴ   pH ձ 3.0~9.0̸  ǰ 5 ΰ pH   Ÿ. 
  꼺, Į pH ձ    ڱ  Ǻ ջ   ִ. 
  ǰ 5ǰ  4ǰ Ȩ  ͳݿ Ǵ ǰ  ƴ.
ľû "ֱ       ϸ鼭    ð ־ 뿡  Ǹ Ѵ"鼭 
"߿   Ǻο ְų ó,   ̻  쿡   ؼ  ȴ" ߴ. 
̾ "Ư ҵ  װ ð ߿ ϴ  ϴ   κ 꼺 pH 3~4̱   
ݵ ؾ Ѵ"鼭 "ε    Һڵ  Ȯ ȭǰ   ֵ  ǰ ǽ 
ȹ"̶ . 
ǰ  ù - ̴ (www.hidoc.co.kr)