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2, 4, 5‐TRIHYDROXYBUTYROPHENONE (2, 4, 5‐THBP)a AS A SUBSTRATE FOR MUSHROOM TYROSINASE
Year:
1991
Source of publication :
Journal of Food Biochemistry
Authors :
Kahn, Varda
;
.
Volume :
15
Co-Authors:
KAHN, V., Department of Food Science, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50-250, Israel
OSUGA, D.T., Department of Food Science and Technology, University of California Davis, Davis, California, 95616, United States
WHITAKER, J.R., Department of Food Science and Technology, University of California Davis, Davis, California, 95616, United States
Facilitators :
From page:
1
To page:
15
(
Total pages:
15
)
Abstract:
2, 4, 5‐THBP (2, 4, 5‐trihydroxybutyrophenone) is a substrate for mushroom tyrosinase with a Km value of 1.00 mM. The final product(s) formed is red (λ.max 480–490 nm) and it is rather stable with time. An intermediate red product(s), having a maximum at λ 505–515 nm, was detected and the time course of its conversion to the final red product(s) was studied. The data suggest that the intermediate red product(s) is 2, 4, 5‐THBP‐quinone which is converted to colorless polymerized 2, 4, 5‐THBP‐OH, which is then oxidized to a red polymerized 2, 4, 5‐THBP‐quinone(s), which is the final red product(s). Copyright © 1991, Wiley Blackwell. All rights reserved
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DOI :
10.1111/j.1745-4514.1991.tb00140.x
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
19856
Last updated date:
02/03/2022 17:27
Creation date:
16/04/2018 23:32
Scientific Publication
2, 4, 5‐TRIHYDROXYBUTYROPHENONE (2, 4, 5‐THBP)a AS A SUBSTRATE FOR MUSHROOM TYROSINASE
15
KAHN, V., Department of Food Science, Agricultural Research Organization, The Volcani Center, P.O. Box 6, Bet Dagan, 50-250, Israel
OSUGA, D.T., Department of Food Science and Technology, University of California Davis, Davis, California, 95616, United States
WHITAKER, J.R., Department of Food Science and Technology, University of California Davis, Davis, California, 95616, United States
2, 4, 5‐TRIHYDROXYBUTYROPHENONE (2, 4, 5‐THBP)a AS A SUBSTRATE FOR MUSHROOM TYROSINASE
2, 4, 5‐THBP (2, 4, 5‐trihydroxybutyrophenone) is a substrate for mushroom tyrosinase with a Km value of 1.00 mM. The final product(s) formed is red (λ.max 480–490 nm) and it is rather stable with time. An intermediate red product(s), having a maximum at λ 505–515 nm, was detected and the time course of its conversion to the final red product(s) was studied. The data suggest that the intermediate red product(s) is 2, 4, 5‐THBP‐quinone which is converted to colorless polymerized 2, 4, 5‐THBP‐OH, which is then oxidized to a red polymerized 2, 4, 5‐THBP‐quinone(s), which is the final red product(s). Copyright © 1991, Wiley Blackwell. All rights reserved
Scientific Publication
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