| 000 | 02357nab a22003257a 4500 | ||
|---|---|---|---|
| 001 | G95738 | ||
| 003 | MX-TxCIM | ||
| 005 | 20170719155427.0 | ||
| 008 | 121211b |||p||p||||||| |z||| | | ||
| 022 | _a1520-5118 (Revista en electrónico) | ||
| 022 | 0 | _a0021-8561 | |
| 040 | _aMX-TxCIM | ||
| 041 | 0 | _aEn | |
| 100 | 1 | _aHasjim, J. | |
| 245 | 0 | 0 | _aKernel composition, starch structure, and enzyme digestibility of opaque-2 maize and quality protein maize |
| 260 | _c2009 | ||
| 500 | _aPeer-review: Yes - Open Access: Yes|http://science.thomsonreuters.com/cgi-bin/jrnlst/jlresults.cgi?PC=MASTER&ISSN=0021-8561 | ||
| 520 | _aObjectives of this study were to understand how opaque-2 (o2) mutation and quality protein maize (QPM) affect maize kernel composition and starch structure, property, and enzyme digestibility. Kernels of o2 maize contained less protein (9.6-12.5%) than those of the wild-type (WT) counterparts (12.7-13.3%). Kernels of a severe o2 mutant B46o2 also contained less starch (66.9%) than those of B46wt (73.0%). B46o2 and QPM starches contained less amylose (28.0 and 26.0%, respectively) than others (31.9-33.7%). The B46o2 starch also consisted of amylopectin with the fewest branch chains of DP 13-24. Thus, the B46o2 starch was the most susceptible to porcine pancreatic R-amylase (PPA) hydrolysis. Starches of the dry-ground o2 maize and QPM were hydrolyzed faster than that of the dry-ground WT maize, resulting from the reduced protein content of the o2-maize kernels and the reduced amylose content of the B46o2 and QPM starch. Starch in the dry-ground maize sample was hydrolyzed faster by PPA (85-91%) than was the isolated starch (62-71%), which could be attributed to the presence of mechanically damaged starch granules and endogenous amylases in the dry-ground maize samples. These results showed that o2 maize and QPM had highly digestible starch and could be desirable for feed and ethanol production. | ||
| 546 | _aEnglish | ||
| 650 | 1 | 0 | _aQuality protein maize |
| 653 | 0 | _aDry-ground maize | |
| 653 | 0 | _aOpaque-2 maize | |
| 653 | 0 | _aPhysicochemical properties | |
| 653 | 0 | _aStarch digestibility | |
| 700 | 1 |
_aJay-Lin Jane, _ecoaut. |
|
| 700 | 1 |
_aSathaporn, S., _ecoaut. |
|
| 700 | 1 |
_aScott, M.P., _ecoaut. |
|
| 773 | 0 |
_tJournal of Agricultural and Food Chemistry _gv. 57, p. 2049-2055 |
|
| 942 |
_cJA _2ddc |
||
| 999 |
_c28728 _d28728 |
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