000 03205nab a22002057a 4500
850 _aเอกสารภาษาไทย (ชั้น 5)
999 _c148163
_d148163
008 181219b2560 xxu||||| |||| 00| 0 eng d
099 _aRepr.F13
100 1 _aBaik, Byung‐Kee.
_9179972
245 _aPostharvest and postmilling changes in wheat grain and flour quality characteristics /
_cByung‐Kee Baik and Tom Donelson.
500 _aสนใจติดต่อขอรับบริการเอกสารฉบับเต็มที่ one stop service (สำนักหอสมุดฯ) หรือ e-mail ([email protected]) โทร. 0 2201 7254-56, 0 2201 7287-89 (จัดเก็บชั้น 5 - Repr.F13)
518 _aYJ2019 M01
520 _aBackground and objectives Soft red winter (SRW) wheat grain immediately after harvest and flour after milling were stored for 26 weeks and analyzed for comprehensive milling and baking quality characteristics at different time points to examine the consistency of the quality test results. Findings Increases in falling number (FN) of grain during postharvest storage were observed for nine of ten varieties, in which FN ranged from 62 to 264 at 2 weeks after harvest and increased by 18-109 during storage for 21 weeks at 23°C. Wheat grain exhibited evident fluctuations in refined flour characteristics during the first 4 weeks of storage and then lesser changes with further storage. The storage time of grain did not significantly influence the milling yield, FN, and water SRC of refined flour. For refined flour during postmilling storage, storage time significantly affected all the flour characteristics, which showed evident fluctuations especially in the first 4 weeks of storage. The refined flour FNs of all four tested varieties increased from 373-405 to 377-417 during the first 8 weeks and then sharply to 427-474 with further storage for 26 weeks. Flour pH decreased slightly for the first 2 weeks after milling, was stable for the next 8 weeks, and then decreased again to 5.74-5.90 at 26 weeks. Small but steady decreases in both lactic acid SRC and SDS sedimentation volume were also observed for refined flour during storage. Postmilling storage induced relatively small changes in the solvent retention capacity and cookie diameter of flour. Conclusions Postharvest and postmilling changes must be considered to achieve a reliable determination of the FN of wheat grain and flour, and pH, SDS sedimentation volume, and lactic SRC of flour. A storage time of 4 weeks would reduce the variation in wheat grain and flour quality test results, allowing reliable and reproducible evaluation. Significance and novelty The FN of both wheat grain and flour significantly increases during postharvest and postmilling storages. The pH and protein strength of flour show small decreases during postmilling storage with even smaller changes in water retaining capacity and cookie‐baking quality.
648 _aFOOD61M12
_9159751
650 0 _aPostharvest and postmilling storage.
_9153727
650 0 _aWheat quality.
_9153728
700 1 _aDonelson, Tom.
_9153729
773 _tCereal Chemistry
_g95(1)2018:141-148
942 _2lcc