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Probable Identity of the Pectinase Inhibitor in Grape Leaves
Author(s) -
PORTER WILLIAM L.,
SCHWARTZ JOSEPH H.,
BELL THOMAS A.,
ETCHELLS JOHN L.
Publication year - 1961
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1961.tb00802.x
Subject(s) - pectinase , tannin , chemistry , food science , cellulase , polyphenol , gelatin , botany , biology , enzyme , biochemistry , antioxidant
SUMMARY Studies were continued on the chemical nature of the water‐soluble substance in Muscadine grape leaves that was previously reported as inhibiting pectinase and cellulase. The inhibitor is a tannin or tannin‐like material, removable from leaf extracts by hide powder, caffeine, gelatin, and nicotine sulfate. Muscadine leaves had the highest inhibiting activity of the plants tested.