Properties of synthetic and native liver glycogen

The properties of high molecular weight glycogen extracted from rat liver and of that prepared in vitro with muscle phosphorylase and liver branching enzyme have been compared. The stability at different pH values was measured spectrophotometrically for liver, corn, and synthetic glycogen. The forme...

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Autores principales:	Parodi, Armando José, Krisman de Fischman, Clara Rebeca
Publicado:	1967
Materias:	glycogen metal animal article drug stability frogs and toads glycogen liver level heat molecular weight pH pigeon rat spectrophotometry ultrasound Animal Anura Drug Stability Glycogen Heat Hydrogen-Ion Concentration Liver Glycogen Metals Molecular Weight Pigeons Rats Spectrophotometry Ultrasonics
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00039861_v121_n3_p769_Parodi http://hdl.handle.net/20.500.12110/paper_00039861_v121_n3_p769_Parodi
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_00039861_v121_n3_p769_Parodi
record_format	dspace
spelling	paper:paper_00039861_v121_n3_p769_Parodi2023-06-08T14:24:53Z Properties of synthetic and native liver glycogen Parodi, Armando José Krisman de Fischman, Clara Rebeca glycogen metal animal article drug stability frogs and toads glycogen liver level heat molecular weight pH pigeon rat spectrophotometry ultrasound Animal Anura Drug Stability Glycogen Heat Hydrogen-Ion Concentration Liver Glycogen Metals Molecular Weight Pigeons Rats Spectrophotometry Ultrasonics The properties of high molecular weight glycogen extracted from rat liver and of that prepared in vitro with muscle phosphorylase and liver branching enzyme have been compared. The stability at different pH values was measured spectrophotometrically for liver, corn, and synthetic glycogen. The former is more labile, but the shape of the pH-stability curve is very similar for all of them. Borate, copper, and iron accelerate the decomposition of the three types of glycogen. Sonication produces breakdown but affects in the same way synthetic and liver glycogen. After shortening the outer chains with β-amylase, native liver glycogen becomes slightly more stable to acid treatment and decomposes giving smaller molecules than the untreated glycogen. Glycogen extracted from livers of toad and pigeon was similar in molecular weight distribution and acid lability to that of rat liver. Rat muscle glycogen had a molecular weight of about 8 million. © 1967. Fil:Parodi, A.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Krisman, C.R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1967 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00039861_v121_n3_p769_Parodi http://hdl.handle.net/20.500.12110/paper_00039861_v121_n3_p769_Parodi
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	glycogen metal animal article drug stability frogs and toads glycogen liver level heat molecular weight pH pigeon rat spectrophotometry ultrasound Animal Anura Drug Stability Glycogen Heat Hydrogen-Ion Concentration Liver Glycogen Metals Molecular Weight Pigeons Rats Spectrophotometry Ultrasonics
spellingShingle	glycogen metal animal article drug stability frogs and toads glycogen liver level heat molecular weight pH pigeon rat spectrophotometry ultrasound Animal Anura Drug Stability Glycogen Heat Hydrogen-Ion Concentration Liver Glycogen Metals Molecular Weight Pigeons Rats Spectrophotometry Ultrasonics Parodi, Armando José Krisman de Fischman, Clara Rebeca Properties of synthetic and native liver glycogen
topic_facet	glycogen metal animal article drug stability frogs and toads glycogen liver level heat molecular weight pH pigeon rat spectrophotometry ultrasound Animal Anura Drug Stability Glycogen Heat Hydrogen-Ion Concentration Liver Glycogen Metals Molecular Weight Pigeons Rats Spectrophotometry Ultrasonics
description	The properties of high molecular weight glycogen extracted from rat liver and of that prepared in vitro with muscle phosphorylase and liver branching enzyme have been compared. The stability at different pH values was measured spectrophotometrically for liver, corn, and synthetic glycogen. The former is more labile, but the shape of the pH-stability curve is very similar for all of them. Borate, copper, and iron accelerate the decomposition of the three types of glycogen. Sonication produces breakdown but affects in the same way synthetic and liver glycogen. After shortening the outer chains with β-amylase, native liver glycogen becomes slightly more stable to acid treatment and decomposes giving smaller molecules than the untreated glycogen. Glycogen extracted from livers of toad and pigeon was similar in molecular weight distribution and acid lability to that of rat liver. Rat muscle glycogen had a molecular weight of about 8 million. © 1967.
author	Parodi, Armando José Krisman de Fischman, Clara Rebeca
author_facet	Parodi, Armando José Krisman de Fischman, Clara Rebeca
author_sort	Parodi, Armando José
title	Properties of synthetic and native liver glycogen
title_short	Properties of synthetic and native liver glycogen
title_full	Properties of synthetic and native liver glycogen
title_fullStr	Properties of synthetic and native liver glycogen
title_full_unstemmed	Properties of synthetic and native liver glycogen
title_sort	properties of synthetic and native liver glycogen
publishDate	1967
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00039861_v121_n3_p769_Parodi http://hdl.handle.net/20.500.12110/paper_00039861_v121_n3_p769_Parodi
work_keys_str_mv	AT parodiarmandojose propertiesofsyntheticandnativeliverglycogen AT krismandefischmanclararebeca propertiesofsyntheticandnativeliverglycogen
_version_	1768541871959703552

Properties of synthetic and native liver glycogen

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