• 제목/요약/키워드: Nitrosyl Chloride

검색결과 2건 처리시간 0.017초

Potassium Chloride로부터 Nitrogen Dioxide 반응에 의한 Potassium Nitrate로의 전환 (Conversion of Potassium Chloride to Potassium Nitrate by the Reaction of Nitrogen Dioxide)

  • 임굉
    • 자연과학논문집
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    • 제8권2호
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    • pp.129-136
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    • 1996
  • 염화물을 이산화질소기체로 반응시킬때와 같이 고체 염화칼륨으로부터 고체 질산칼륨으로의 직접적인 전환이 질산칼륨의 생성을 암시하고 있음을 확인하였다. 또 열역학적 추정에 있어서 자유에너지 변화는 상온에서 유리하며 발열반응을 보여준다. 그리고 높은 수율과 함께 적은양의 물존재로 인하여 상온에서 반응이 일어나며 반응생성물에서 염화니트로실이 동시에 생성되고 있다.

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The Effects of Addition Timing of NaCl and Sodium Tripolyphosphate and Cooking Rate on Pink Color in Cooked Ground Chicken Breasts

  • Bae, Su Min;Cho, Min Guk;Jeong, Jong Youn
    • 한국축산식품학회지
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    • 제40권2호
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    • pp.231-241
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    • 2020
  • The current study investigated the effects of timing of NaCl (2%) and sodium tripolyphosphate (STPP, 0.5%) addition and cooking rates on color and pigment properties of ground chicken breasts. Four treatments were tested as follows: treatment 1, no NaCl and STPP added and stored for 7 d; treatment 2, NaCl+STPP added on 0 d and stored for 7 d; treatment 3, NaCl added on 0 d and STPP added on 7 d; and treatment 4, stored for 7 d and NaCl+STPP added. All samples were cooked at a fast (5.67℃/min) or slow cooking rate (2.16℃/min). Regardless of the timing of NaCl and STPP addition, reflectance ratios of nitrosyl hemochrome, cooking yield, pH values, oxidation-reduction potential, and percent myoglobin denaturation were similar (p>0.05) across treatments 2, 3, and 4. The highest CIE a values were observed in treatment 4 (p<0.05), while treatment 2 was effective in reducing the redness in cooked chicken products. The fast cooking rate resulted in lower CIE a values and higher CIE L values and cooking yield in cooked chicken breasts compared to the slow cooking rate. Our results indicate that adding NaCl and STPP to meat, followed by storing and cooking at a fast rate, may result in inhibiting the pink color defect sporadically occurred in cooked ground chicken breasts.