<center id="wwuea"><acronym id="wwuea"></acronym></center>
<nav id="wwuea"></nav>
  • 
    
  • <rt id="wwuea"></rt>
    <li id="wwuea"></li>
  • <cite id="wwuea"><tr id="wwuea"></tr></cite>
  • <cite id="wwuea"></cite>
  • reback
  • NEWS CENTER

    Laccase determination Kit

    Release time:2022-02-18 13:19    Views

    Determination of laccase activity

    Grape juice to be tested must be unvulcanized.

    1- insert 5mL of grape juice or wine into the injection tube of the laccase activity tester (BOTRYTEST) using a pipette.

    2- place the tube in the laccase activity tester (BOTRYTEST) and wait for the resin in the tube to wet to the bottom (3 to 10 minutes), then install a piston on the top of the tube and gently inject into the tube until the first marking line of the tube is reached.

    3- add 1,4 mL of buffer (up to second marker line of test tube), followed by 0,6 mL of reaction agent laccase activity tester (up to third marker line of test tube). Shake the tube so that the liquid in the tube is well mixed. 

    Determine the level of laccase activity after 4 to 3 minutes (stopwatch timing) against the colorimetric card.


    Judge the result by comparing the color card

    Reactif: Ethanol + Syringaldazine

    Tampon: Acide Acetique + Sodium Acetate + water (EAU)Resin (Resine) : Sand (Sable) + polyvinyl pyrrolidone (PVPP)


    煙臺(tái)葡萄酒輔料

     

    Comparison card : green indicates no laccase crisis. From 1, the laccase content gradually increases as the color becomes darker.

     

    Laccase (Botrytis cinerea)

    The resulting substances can pose major problems for the wine-making process. 

    Laccase produces excess polysaccharide: Glucane 

    Dextran can pose tricky clarification problems.

    Dextran can cause filtration difficulties. 

    The loss of wine quality is obvious. 

    Wasted costs.

     

    Laccase (oxidase)

    Yantai wine accessories - laccase will oxidize grape juice and wine, damage the aroma of wine and induce wine oxidation crisis.

     

    煙臺(tái)啤酒輔料

     

    煙臺(tái)果汁輔料


    国产深夜色视频在线,久久精品国产2022观看福利,亚洲欧美人人超碰,亚洲国产综合精品中文第一
    <center id="wwuea"><acronym id="wwuea"></acronym></center>
    <nav id="wwuea"></nav>
  • 
    
  • <rt id="wwuea"></rt>
    <li id="wwuea"></li>
  • <cite id="wwuea"><tr id="wwuea"></tr></cite>
  • <cite id="wwuea"></cite>
  • 国产精品亚洲第一区二区三区| 亚洲日本香蕉视在线播放| 国产AV剧情中文正在播放| 在线精品国产大象香蕉网| 亚洲最新精品视频在线观看| 五月天无码视频在线观看| 一区二区三区av无码观看| 亚洲欧洲中文字幕免费看| 国产尤物av尤物在线看| 免费国产高清在线精品一区| 中文字幕一级毛片| 狠狠热精品视频| 久久黄色精品热线视频| 亚洲一区二区三区高清av| 国产精品亚洲第一区在线暖暖韩国| 99精品国产再热久久无毒不卡| 亚洲国产欧美在线观看片不卡| 国产精品99久久久久18| 亚洲中文字幕乱码一区二区三区| 国产在线一区二区三区| 日韩精品中文在线一区二区有码动漫| 911国产在线观看一本| 亚洲人AV在线播放不卡| 国产黄色网站免费大全| 最新无码专区在线视频观看| 亚洲精品无码宅男在线| 国产真实乱对白精彩久久| 亚洲 日韩 另类 制服 无码| 国产精品色婷婷亚洲综合看片|