Hydrogen peroxide produced by a low-molecular-weight compound in milk with high electrical conductivity in dairy cows.
Hydrogen peroxide produced by a low-molecular-weight compound in milk with high electrical conductivity in dairy cows.
复制标题
奶牛牛奶中的低分子量化合物产生的过氧化氢具有高导电性。
DOI：
10.1111/j.1740-0929.2010.00791.x
复制
发表时间：
2010
期刊：
影响因子：
--
通讯作者：
K. Nagaoka
中科院分区：
文献类型：
--
作者：
S. Sakai;Takahiro Satow;K. Imakawa;K. Nagaoka
在奶牛中，由发炎乳区的牛奶中的低分子量化合物产生的过氧化氢（H2 O2）低于未发炎乳区的牛奶。在交付级牛奶中，高电导率（EC）的牛奶中H ↓ [2] O ↓ [3]的产生特性进行了研究。每隔1个月采集230头奶牛的乳样，测定脱脂乳的EC。根据奶牛乳区的最高和最低EC值，将≥0.6 mS/cm（平均值+ t/cm. SE）的乳区间差异视为高EC值。在52个乳区中发现了高EC牛奶。在高EC牛奶中，同一动物的正常EC牛奶中的H-2 O-生成量高于高EC牛奶，但低于对照群体。在高EC的牛奶中，H2O生成的减少与EC的增加相关。特别是当季度间差异超过0.8 mS/cm时，H2O生成量下降。在1个月前同一季度采集的牛奶中，EC从正常变为高，并且H2O生成量下降。在其他三个季度的牛奶中，EC保持正常，H2O产量保持不变。我们的结论是，高EC的牛奶出现在低HO β产生的奶牛。结果表明，H ↓ [2] O ↓ [3]生成的减少程度反映了季度异常的程度。
In dairy cows, hydrogen peroxide (H₂O₂) produced from a low-molecular-weight compound in milk from inflamed quarters was lower than that in milk from un-inflamed quarters. In milk of delivery grade, characteristics of H₂O₂ production in milk with high electrical conductivity (EC) were examined in this study. Milk samples were collected from a total of 230 cows at 1-month intervals, and the EC of skimmed milk was determined. Based on the highest and the lowest EC of a cow's quarter milk, the inter-quarter difference of ≥0.6 mS/cm (mean + t₀.₀₁ SE) was taken as a high EC. Milk with high EC was found in 52 quarters. In cows with milk of high EC, H₂O₂ production in milk with normal EC was higher than that in milk with high EC in the same animal but was lower than that in the control population. In milk with high EC, the decrease of H₂O₂ production correlated with the increase in EC. The production of H₂O₂ decreased in particular when the inter-quarter difference exceeded 0.8 mS/cm. In milk collected from the same quarter 1 month before, EC changed from normal to high, and H₂O₂ production decreased. In milk from the other three quarters, EC remained normal and H₂O₂ production remained unchanged. We concluded that milk with high EC appeared in low H₂O₂ -producing cows. The results suggest that the degree of decrease in H₂O₂ production reflects the extent of quarter abnormality.
通过具有高和低乳体细胞计数的荷斯坦奶牛的牛奶中的小分子质量化合物生产过氧化氢。
DOI：
--
发表时间：
2008
期刊：
J Dairy Research 75
影响因子：
--
作者：
Sakai;その他
通讯作者：
その他
荷斯坦奶牛乳清中低分子量化合物产生过氧化氢
影响因子：
2.1
作者：
Sakai;その他
通讯作者：
その他