MARC details
| 000 -LEADER |
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| fixed length control field |
03223nab a22003617a 4500 |
| 001 - CONTROL NUMBER |
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| control field |
68131 |
| 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 |
20251105091707.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION |
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| fixed length control field |
241115s1984 -us|||po p||| 00| 0 eng d |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
0003-021X |
| 022 ## - INTERNATIONAL STANDARD SERIAL NUMBER |
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| International Standard Serial Number |
1558-9331 (Online) |
| 024 8# - OTHER STANDARD IDENTIFIER |
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| Standard number or code |
https://doi.org/10.1007/BF02542166 |
| 040 ## - CATALOGING SOURCE |
|---|
| Original cataloging agency |
MX-TxCIM |
| 041 ## - LANGUAGE CODE |
|---|
| Language code of text/sound track or separate title |
eng |
| 100 1# - MAIN ENTRY--PERSONAL NAME |
|---|
| Personal name |
Butler, L.G. |
| 9 (RLIN) |
31906 |
| 245 10 - TITLE STATEMENT |
|---|
| Title |
Interaction of proteins with sorghum tannin : |
| Remainder of title |
Mechanism, specificity and significance |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT) |
|---|
| Place of publication, distribution, etc. |
United States of America : |
| Name of publisher, distributor, etc. |
American Oil Chemists' Society ; |
| -- |
John Wiley & Sons, |
| Date of publication, distribution, etc. |
1984. |
| 500 ## - GENERAL NOTE |
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| General note |
Peer review |
| 520 ## - SUMMARY, ETC. |
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| Summary, etc. |
The grain of some varieties of sorghum contains 2% or more condensed tannin; many other varieties contain no tannin at all. Agronomic advantages, e.g., resistance to bird depredation, are associated with high-tannin sorghums, which have relatively low nutritional value for nonruminants. The biological effects of tannin are a result of its propensity for binding proteins; both hydrogen bonding and hydrophobic interactions are involved. Sorghum tannins can bind dietary proteins and reduce their digestibility. Purified digestive enzymes are inhibited by tannin, but significant inhibition in vivo is unlikely. Proteins differ greatly in their affinity for tannin. Those with highest affinity are large, have an open structure, contain no bound carbohydrate and are rich in proline. Sorghum proteins of the alcohol-soluble prolamine fraction associate strongly with tannin, are difficult to remove during tannin purification and are found combined with tannin in the indigestible residue after in vitro digestion with pepsin. On germination, the seed may sacrifice a portion of these proteins to bind the tannin that might otherwise interfere with metabolism by inhibiting seed enzymes. During seed development, tannin molecules are relatively short and do not effectively precipitate proteins; as the seed dries, tannins undergo polymerization to an average of ca. 6 flavan-3-ol units/molecule. The antinutritional effects of sorghum tannins can be eliminated by soaking the grain in dilute aqueous alkali, but not by cooking. When rats are put on high-tannin sorghum diets, their parotid glands undergo hypertrophy and produce a group of unique salivary proteins with extremely high affinity for tannin. These proteins contain over 40% proline and are devoid of sulfur-containing and aromatic amino acids. This metabolic adaption may protect rats against tannin by binding and inactivating it immediately when it enters the digestive tract. |
| 546 ## - LANGUAGE NOTE |
|---|
| Language note |
Text in English |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Interactions |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
29978 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Protein content |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
1222 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Sorghum |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
2002 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Tannins |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
31904 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Hydrophobicity |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
37278 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Digestibility |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
9136 |
| 650 #7 - SUBJECT ADDED ENTRY--TOPICAL TERM |
|---|
| Topical term or geographic name as entry element |
Carbohydrates |
| Source of heading or term |
AGROVOC |
| 9 (RLIN) |
4730 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
David, J.R. |
| 9 (RLIN) |
37275 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Lebryk, D.G. |
| 9 (RLIN) |
37276 |
| 700 1# - ADDED ENTRY--PERSONAL NAME |
|---|
| Personal name |
Blytt, H.J. |
| 9 (RLIN) |
37290 |
| 773 0# - HOST ITEM ENTRY |
|---|
| Place, publisher, and date of publication |
United States of America : American Oil Chemists' Society ; John Wiley & Sons, 1984. |
| Related parts |
v. 61, no. 5, p. 916-920 |
| Title |
Journal of the American Oil Chemists' Society |
| International Standard Serial Number |
0003-021X |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) |
|---|
| Source of classification or shelving scheme |
Dewey Decimal Classification |
| Koha item type |
Article |
| Suppress in OPAC |
No |