Acetic acid is used during hemicellulose as well as lignin precipitation during quantitative determination of lignocellulosic composition?
Also, the below mentioned researcher has many articles ivolving determination of lignin and hemicellulose in different types of lignocellulosic resources. Look specially at the older articles. Best wishes.
https://www.researchgate.net/profile/Yehia_Fahmy
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