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protopectin

[proh-tuh-pek-tin] /ˌproʊ təˈpɛk tɪn/
noun, Biochemistry
1.
any of the class of water-insoluble pectic substances that are found in the rind of citrus fruits or in apple peels and that are hydrolyzed to pectin or pectic acid.
Also called pectinogen, pectose.
Origin of protopectin
1905-1910
1905-10; proto- + pectin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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