נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Optimum conditions for determining depolymerisation of pectic substances with the Sumner reagent
Year:
1982
Source of publication :
Food Chemistry
Authors :
Ben-Shalom, Noach
;
.
Kanner, Joseph
;
.
Pinto, Rivka
;
.
Shomer, Ilan
;
.
Volume :
9
Co-Authors:
Ben-Shalom, N., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Shomer, I., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Pinto, R., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Kanner, J., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Facilitators :
From page:
205
To page:
212
(
Total pages:
8
)
Abstract:
Using Sumner reagents for determining reducing groups following polygalacturonase activity, high degradation of the polyuranoid polymers was observed. The time, the NaOH concentration and the polyuranoid materials influenced the rate and intensity of colour development. Low esterified and high esterified pectin did not show any difference in colour intensity during Sumner reaction. As the Sumner reaction did not include buffer capacity, the reaction mixture for polygalacturonase activity-which included pectic and organic acids-influenced the colour intensity. CaCl2 at low concentrations (0·5-2·5 mm) accelerated the degradation of pectin and higher concentrations (2·5-10 mm) inhibited the reaction. © 1982.
Note:
Related Files :
food research
food technology
Show More
Related Content
More details
DOI :
10.1016/0308-8146(82)90098-X
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
29231
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:45
Scientific Publication
Optimum conditions for determining depolymerisation of pectic substances with the Sumner reagent
9
Ben-Shalom, N., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Shomer, I., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Pinto, R., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Kanner, J., Division of Food Technology, Agricultural Research Organization, Volcani Center, PO Box 6, Bet Dagan 50-250, Israel
Optimum conditions for determining depolymerisation of pectic substances with the Sumner reagent
Using Sumner reagents for determining reducing groups following polygalacturonase activity, high degradation of the polyuranoid polymers was observed. The time, the NaOH concentration and the polyuranoid materials influenced the rate and intensity of colour development. Low esterified and high esterified pectin did not show any difference in colour intensity during Sumner reaction. As the Sumner reaction did not include buffer capacity, the reaction mixture for polygalacturonase activity-which included pectic and organic acids-influenced the colour intensity. CaCl2 at low concentrations (0·5-2·5 mm) accelerated the degradation of pectin and higher concentrations (2·5-10 mm) inhibited the reaction. © 1982.
Scientific Publication
You may also be interested in