当科学家分析了新鲜亚贡雪莲的块茎，他们发现块茎的由69 - 83 %的水分，20 %的糖(主要是菊糖)和0.4 - 2.2 %的蛋白质组成。
When scientists analyzed fresh yacon tuber, they discovered the tubers consist of 69 to 83 percent moisture, 20 percent sugars (mostly inulin) and 0.4 to 2.2 percent protein.
利用海水资源对菊芋进行灌溉不影响其块茎中菊糖的含量，菊芋块茎中菊糖含量范围为40到65左右。
The irrigation with seawater had n ' t affected the inulin contents hi helianthus tuberosus ( l. ) tubers, and the contents of inulin in helianthus tuberosus ( l. ) were from about 40 % to 65 %
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