午夜福利无码久久久_久久香蕉国产线观看精品91_国产无码成本人电影_欧美va天堂在线电影

食品伙伴網(wǎng)服務號
 
 
當前位置: 首頁 » 專業(yè)英語 » 專業(yè)知識 » 正文

Why do sweet onions cause less tears than non-sweet onions ?

放大字體  縮小字體 發(fā)布日期:2007-08-06
核心提示:Typical yellow, white and red onions have an average sugar content of about 3%. For an onion to be considered sweet it should have a sugar content of at least 6%, but some have as high as 15%. Sweet onions also have a lower concentration of pyruvic

Typical yellow, white and red onions have an average sugar content of about 3%. For an onion to be considered "sweet" it should have a sugar content of at least 6%, but some have as high as 15%.

Sweet onions also have a lower concentration of pyruvic acid, which is part of the chemical reaction in onions that accounts for their pungency and the tearing effect produced when cut (see here) . An ordinary onion has a pyruvic-acid content of 10% to 13%, whereas a sweet onion typically has levels below 5%.

Therefore the sweetness as such does not influence the tearing effect.

更多翻譯詳細信息請點擊:http://www.trans1.cn
 
[ 網(wǎng)刊訂閱 ]  [ 專業(yè)英語搜索 ]  [ ]  [ 告訴好友 ]  [ 打印本文 ]  [ 關閉窗口 ] [ 返回頂部 ]
分享:

 

 
推薦圖文
推薦專業(yè)英語
點擊排行
 
 
Processed in 0.063 second(s), 14 queries, Memory 0.89 M