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红葡萄酒中苹果酸测定方法的比较 被引量:1
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作者 赵永春 袁猛 +2 位作者 袁晓林 车兆虹 田宝荣 《中外葡萄与葡萄酒》 2019年第6期47-50,共4页
苹果酸含量是判断苹果酸-乳酸发酵(Malolactic Fermentation,MLF)进程的重要指标,传统上常用纸层析法来测定,该方法不仅用时长,还有污染重的缺点。本文对FOSS仪和Y15两种仪器的检测结果进行评价,并与纸层析法进行了对比。结果表明,FOSS... 苹果酸含量是判断苹果酸-乳酸发酵(Malolactic Fermentation,MLF)进程的重要指标,传统上常用纸层析法来测定,该方法不仅用时长,还有污染重的缺点。本文对FOSS仪和Y15两种仪器的检测结果进行评价,并与纸层析法进行了对比。结果表明,FOSS仪检验结果中,苹果酸含量在0.6 g/L处时,层析结果出现显著改变;Y15检测结果在0.4 g/L处,层析结果出现显著变化。经过卡方检验证明,采用FOSS仪和Y15检测苹果酸含量来判断MLF进程,均比纸层析法用时短、效果好,能更好的满足生产需要。 展开更多
关键词 苹果酸-乳酸发酵 苹果酸 foss分析 Y15分析 纸层析法
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A Comparative Study on the Quality Components Between Self Pollinated Seeds and Naturally Pollinated Seeds in Brassica napus L. in Sichuan Ecological Region 被引量:2
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作者 张锦芳 蒲晓斌 +4 位作者 李浩杰 黄驰 李蒲 张谦 蒋梁材 《Agricultural Science & Technology》 CAS 2009年第1期19-21,80,共4页
[ Objective] This study was to reveal the differences in crude fat and glucosinolates between self pollinated seeds and naturally pollinated seeds in Brassica napus in sichuan ecological region.. [ Method] Near-infrar... [ Objective] This study was to reveal the differences in crude fat and glucosinolates between self pollinated seeds and naturally pollinated seeds in Brassica napus in sichuan ecological region.. [ Method] Near-infrared spectroscopy method (NIRS) was employed to measure the quality components in self pollinated seeds and naturally pollinated seeds of 861 shares of Brassica napus from Sichuan ecological region. And correlation analysis and regression analysis were conducted based on the experimental data via SPSS (statistics package for social science). [ Result] The contents of crude fat in the self pollinated seeds were commonly a higher than that in the naturally pollinated seeds at 0.01 significant level; while the contents of glucosinolates in the self pollinated seeds and the naturally pollinated seeds were insignificantly different. Both the correlation relationship and linear regression for the crude fat between the self pollinated seeds and naturally pollinated seeds reached the significant level. The regression equations for the contents of crude fat(y1 ) and glucosinolates( y2 ) in the naturally pollinated seeds and of crude fat( x1 ) and glucosinolates( x2 ) in self pollinated seeds were respectively determined to be y1 = 16.844 +0.614x1 and y2 = -0.620 + 1.017 x2. [ Conclusion] In Brassica napus breeding, crude fat in naturally pollinated seeds should be emphatically taken into account, meanwhile concurrently considering that in self pollinated seeds; while glucosinolates in both the self pollinated seeds and the naturally pollinated seeds must be simultaneously concerned. 展开更多
关键词 Brassica napus L. Self pollinated seeds Naturally pollinated seeds Content of crude fat Content of gluccsinolates Near-infrared spectroscopy method
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