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Performing Changes in Product Development: A Framework with Keys for Industrial Application

✍ Scribed by Cecilia Beskow; Sofia Ritzén

Book ID
105844802
Publisher
Springer-Verlag
Year
2000
Tongue
English
Weight
255 KB
Volume
12
Category
Article
ISSN
0934-9839

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Response of cottonseed oil products to t
Response of cottonseed oil products to the kreis test for rancidity : In the Kreis test a fat or oil is shaken with equal volumes of hydrochloric acid and a solution of phloroglucinol in ether. The development of a red color indicates that the fat or oil is rancid; its formation is probably due to the presence of aldehydes or ketones in the material tested. Chromogenetic substances, which give a positive Kreis reaction, occur in crude cottonseed oil. The researches of W. B. Smith (Journal of Industrial and Engineering Chemistry, 1920, xii, 764–766)
📂 Article 📅 1920 🏛 Elsevier Science 🌐 English ⚖ 82 KB