1837 ⟶ Schwann Demonstrates Air Heating Prevents Putrefaction

Theodor Schwann showed that heating air will prevent it from...
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Year
1836
1837
1839

🥩 Schwann Isolates Pepsin, the First Animal Enzyme

Theodor Schwann discovered pepsin in extracts from the stomach lining; first isolation of an animal enzyme.⟶
Schwann Isolates Pepsin, the First Animal Enzyme (1836)
EnzymologyBiochemistryEnzymePepsinSchwannAnimal Biology19th Century
GermanyGermany

♨️ Schwann Demonstrates Air Heating Prevents Putrefaction

Theodor Schwann showed that heating air will prevent it from causing putrefaction.⟶
MicrobiologyGerm TheoryPutrefactionSchwannSterilization19th CenturyMedical Science
GermanyGermany

🔬 Schwann Proposes All Animal Tissues are Composed of Cells; Cell Theory Expanded

Theodor Schwann proposed that all animal tissues are composed of cells. Schwann and Schleinden argued that cells are the elementary particles of life.⟶
Schwann Proposes All Animal Tissues are Composed of Cells; Cell Theory Expanded (1839)
Cell TheoryBiologySchwannCell Biology19th CenturyCytologyHistology
GermanyGermany