과산화물에 의하
실험제목: TBA(Thiobarbituric acid)값
실험날짜: 2003년 11월 4일 2조
실험목적: 식품 속의 manonaldehyde(지방의 산화 생성물)를 측정하여 식품의
신선도 측정
실험원리: 2-thiobarbituric acid는 지방산의 산화 생성물인 malonaldehyde와 반응하여 다음과 같은 붉은색소를 형성한다.
acid. This reaction is most conveniently carried
out in the high-boiling solvent triethylene glycol. To boil off excess water, the
temperature is raised to the point where the dehydration occur.
Within a few minute, this process is completed.
Luminol(C8H7O3N3) powder is mixed with a liquid containing hydrogen peroxide(H2O2), a hydroxide (OH-). In order to produce a strong glow, they need