In vitro Effects of Phytic Acid and Polyphenols on Starch Digestion and Fiber Degradation
(1987) In Journal of Food Science 52(6). p.1588-1594- Abstract
The effect of phytic acid and polyphenols on the rate and extent of starch digestion as well as on fiber degradation was studied in vitro. Addition of phytic acid only had negligible influence on the enzyme activity of the amylases tested. In contrast, enzymes concerned with starch hydrolysis in the digestive channel (α‐amylase, amyloglucosidase/maltase) were inhibited by tannic acid, and to some extent also by catechin. Furthermore, tannic acid reduced the total recovery of starch during enzymic starch analysis. The activity of cellulases and hemicellulases was not affected by phytic acid or catechin. However, the degradation of cellulose powder was inhibited by tannic acid, whereas no inhibition could be observed with... (More)
The effect of phytic acid and polyphenols on the rate and extent of starch digestion as well as on fiber degradation was studied in vitro. Addition of phytic acid only had negligible influence on the enzyme activity of the amylases tested. In contrast, enzymes concerned with starch hydrolysis in the digestive channel (α‐amylase, amyloglucosidase/maltase) were inhibited by tannic acid, and to some extent also by catechin. Furthermore, tannic acid reduced the total recovery of starch during enzymic starch analysis. The activity of cellulases and hemicellulases was not affected by phytic acid or catechin. However, the degradation of cellulose powder was inhibited by tannic acid, whereas no inhibition could be observed with carboxymethyl‐cellulose as substrate.
(Less)
- author
- BJöRCK, INGER M. LU and NYMAN, MARGARETA E. LU
- organization
- publishing date
- 1987-01-01
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Journal of Food Science
- volume
- 52
- issue
- 6
- pages
- 7 pages
- publisher
- Institute of Food Technologists
- external identifiers
-
- scopus:84987344370
- ISSN
- 0022-1147
- DOI
- 10.1111/j.1365-2621.1987.tb05885.x
- language
- English
- LU publication?
- yes
- id
- 6d3e621d-f1f4-4ff4-90e1-1cee51d5de85
- date added to LUP
- 2018-10-16 19:58:29
- date last changed
- 2023-11-18 02:56:29
@article{6d3e621d-f1f4-4ff4-90e1-1cee51d5de85, abstract = {{<p>The effect of phytic acid and polyphenols on the rate and extent of starch digestion as well as on fiber degradation was studied in vitro. Addition of phytic acid only had negligible influence on the enzyme activity of the amylases tested. In contrast, enzymes concerned with starch hydrolysis in the digestive channel (α‐amylase, amyloglucosidase/maltase) were inhibited by tannic acid, and to some extent also by catechin. Furthermore, tannic acid reduced the total recovery of starch during enzymic starch analysis. The activity of cellulases and hemicellulases was not affected by phytic acid or catechin. However, the degradation of cellulose powder was inhibited by tannic acid, whereas no inhibition could be observed with carboxymethyl‐cellulose as substrate.</p>}}, author = {{BJöRCK, INGER M. and NYMAN, MARGARETA E.}}, issn = {{0022-1147}}, language = {{eng}}, month = {{01}}, number = {{6}}, pages = {{1588--1594}}, publisher = {{Institute of Food Technologists}}, series = {{Journal of Food Science}}, title = {{In vitro Effects of Phytic Acid and Polyphenols on Starch Digestion and Fiber Degradation}}, url = {{http://dx.doi.org/10.1111/j.1365-2621.1987.tb05885.x}}, doi = {{10.1111/j.1365-2621.1987.tb05885.x}}, volume = {{52}}, year = {{1987}}, }