MARC details
| 000 -LEADER |
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| fixed length control field |
03066nab a22003497a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
68069 |
| 003 - CONTROL NUMBER IDENTIFIER |
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| control field |
MX-TxCIM |
| 005 - DATE AND TIME OF LATEST TRANSACTION |
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| control field |
20241217090607.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
241106s1980 -us|||po p||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
0743-9407 |
| 040 ## - CATALOGING SOURCE |
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| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
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| Language code of text/sound track or separate title |
eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
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| Personal name |
MacGregor, A.W. |
| 9 (RLIN) |
37055 |
| 245 10 - TITLE STATEMENT |
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| Title |
Action of malt α-amylases on barley starch granules |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
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| Place of publication, distribution, etc. |
United States of America : |
| Name of publisher, distributor, etc. |
Master Brewers Association of the Americas |
| Date of publication, distribution, etc. |
1980. |
| 500 ## - GENERAL NOTE |
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| General note |
Abstract in English and Spanish |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
The complexity of the α-amylase system in malted barley was indicated by isoelectric focusing analysis. This technique showed that malted barley contained three main groups of α-amylase, each of which was heterogeneous. Two groups (designated as α-amylase I and α-amylase II) were isolated and purified and were then used to hydrolyze samples of small and large starch granules isolated from Conquest barley. Small granules were hydrolyzed faster than large granules and α-amylase I was more efficient than α-amylase II in solubilizing the large granules. Studies by scanning electron microscopy on kernels of malted barley showed that starch degradation started at the endosperm edge, adjacent to the embryo. Small granules were degraded preferentially. In vivo and<br/>in vitro hydrolysis of starch granules by α-amylase appeared to take place by similar mechanisms. |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
Se indicó la complejidad del sistema de la α-amilasa en cabada malteada por medio de análisis de enfoque isoeléctrico. Esta técnica mostro la presencia de tres grupos principales de α-amilasa, cada uno de los cuales era heterogéneo. Dos grupos (designados como α-amilasa I y α-amilasa II) se separaron y purificaron y desoués se usaron para hidrolizar muestra de gránulos pequeños y grandes de almidón, aislados de cebada "Conquest". Los gránulos pequeños se hidrolizaron más répido que los gránulos grandes y la α-amilasa I fue más eficiente que la α-amilasa II en la solubilización de los gránulos grandes. Estudios efectuados con microscopía electrónica de barrido sbre los granos de cebada malteada mostraron que la degradación del almidón comenzó en la orilla del edospermo adyacente al germen. Los granulos pequeños fueron degradados preferencialmente. La hidrólisis de los gránulos de almidón por la α-amilasa pareció llevarse a cabo por mecanismos similares tanto in vivo como in vitro. |
| 546 ## - LANGUAGE NOTE |
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| Language note |
Text in English |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Malt |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
9977 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Amylases |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
12869 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Barley |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1018 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Starch |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
5810 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Kernels |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1168 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Endosperm |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1097 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
Plant embryos |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
13483 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
In vivo experimentation |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
30881 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
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| Topical term or geographic name as entry element |
In vitro |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
13154 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Hydrolysis |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
12240 |
| 773 0# - HOST ITEM ENTRY |
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| Place, publisher, and date of publication |
United States of America : Master Brewers Association of the Americas, 1980. |
| Related parts |
v. 17, no. 4, p. 215-221 |
| Title |
MBAA Technical Quarterly |
| International Standard Serial Number |
0743-9407 |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
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| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Article |
| Suppress in OPAC |
No |