暗玉米雙雜交種蛋白質含量及其胺基酸組成之研究
Other Title
The Protein Content and Amino Acid Composition of Thirteen Double Crosses of Opaque-2 Corn
Journal
中華農業研究
Journal Volume
26
Journal Issue
4
Start Page
297
End Page
306
Date Issued
1977-12-04
Date
1977-12-04
Author(s)
鄭心嫻
呂宗佳
萬雄
H.H. Cheng
T.C. Lee
Hsiung Wan
Abstract
1. 13個暗玉米雙雜交種蛋白質含量在9.39~11.01%，普通王米臺南5號與臺南11號蛋白質含量分別為9.60%與9.64％。13個暗玉米雙交種之脂肪含量在4.60~5.70％之間，而普通玉米臺南5號與臺南11號脂肪含量分別為4.95及5.50％。
2. 依據試驗結果，13種雙什交暗玉米的離膠酸含量以gm/100gm蛋白質而言，除代號51增加10％外，代號2較臺南5號增加70%，其餘6種則增加50%，其他雙什交種約增加20%左右。
3. 依據美國普渡大學對老鼠飼養試驗結果，飼料中所需重要按基酸含量之比例為準，則本試驗雙什交暗玉米各種膠基酸在營養上而言，較普通玉米為平衡，並不因暗玉米離按酸含量的提高而受影響。
4. 13個暗玉米雙雜交種分析所得17種按基酸含量間的關係，可獲知如果提高玉米蛋白質中之離膠酸含量，常使histidine, arginine, isoleucine，及valine等按基酸亦同時增加，而proline, alanine, methionine, glycine, glutamicacid及phenylalanine等按基酸含量則相對減少。
5. 綜合13種暗玉米雙什交種與兩個對照種玉米的各項農藝性狀與其離按酸含量比較，則暗玉米雙什交種代號2, 34, 46, 77及97等較有推廣之可能。
1. The protein contents, amino acid composition and agronomic characters of thirteen double crosses of opaque-2 corn were studied. All double crosses were grown in Taichung, Taiwan in fall, 1974.
2. The protein contents of 13 double crosses of opaque-2 corn varied from 9.39-11.01% which were similar to those of the commercial double crosses of ordinary corn, Tainan No. 5 and No. 11 which showed 9.60% and 9.64% of protein respectively.
3. The fat contents of 13 double crosses of opaque-2 corn were from 4.60-5.70% whereas that of Tainan No. 5 and No. 11 were 4.95% and 5.50% respectively.
4. The lysine contents of 13 double crosses of opaque-2 corn also varied considerably. As expressed in gm/100gm protein, No. 2 showed 70% more than that of Tainan No. 5. Six opaque-2 double crosses showed 50% more, while other opaque-2 double crosses increased only 10-20%.
5. Based on the balanced essential amino acid requirements of meanling rat reported by Purdue Scientists, the balance of amino acid composition of all opaque-2 double crosses having higher lysine contents were not altered, This indicates that lysine is the limiting amino acid in protein of ordinary corn.
6. We found that there were some associations among the 17 amino acids of the 13 opaque-2 double crosses. It showed that the increase of lysine content was accompanied by the increase of histidine, arginine, isoleucine and valine and the decrease of proline, alanine, methionine, glycine, glutamic acid, and phenylalanine.
7. If 13 double crosses of opaque-2 corn were judged by their agronomic characters and lysine content, crosses No. 2, 34, 46, 77 and 97 would be considered promising for commercial production.
Publisher
農業試驗所
Type
journal article
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