PEPSIN Definition & Meaning

pepsin

or ��·��Ա�

[ pep-sin ]

Phonetic (Standard)IPA

noun

Biochemistry.

an enzyme, produced in the stomach, that in the presence of hydrochloric acid splits proteins into proteoses and peptones.
a commercial form of this substance, obtained from the stomachs of hogs, used as a digestive, as a ferment in the manufacture of cheese, etc.

pepsin

/ ˈ��ɛ��ɪ�� /

noun

a proteolytic enzyme produced in the stomach in the inactive form pepsinogen, which, when activated by acid, splits proteins into peptones

pepsin

/ ��ĕ��′��ĭ�� /

Any of various digestive enzymes found in vertebrate animals that catalyze the hydrolysis of proteins to peptides.

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�y��vlog History and Origins

Origin of pepsin¹

1835–45; < Greek ��é�� ( is ) digestion ( pep-, base of ��é��ٱ𾱲� to digest + -sis -sis ) + -in ²

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�y��vlog History and Origins

Origin of pepsin¹

C19: via German from Greek pepsis, from peptein to digest

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Example Sentences

Examples have not been reviewed.

One study showed that drinking water with a pH of 8.8 helped to deactivate pepsin.

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One study found that alkaline water with a pH of 8.8 deactivates pepsin, a digestive enzyme found in the stomach.

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Alkaline water can neutralize pepsin’s acidity in the throat, and plant-based proteins tend to produce less pepsin.

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Among these were that the plant should show a preference for nitrogenous over non-nitrogenous foods, and that the droplets that it secreted should have “some ferment analogous to pepsin”, a digestive enzyme.

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Gastric glands also produce a chemical called pepsin that breaks down the protein in your diet.

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