Lignocellulosic feedstocks are often prepared for ethanol fermentation by treatment with a dilute mineral acid catalyst that hydrolyzes the hemicellulose and possibly cellulose into soluble carbohydrates. The acid-catalyzed reaction scheme is sequential. whereby the released monosaccharides are further degraded to furans and other chemicals that are inhibitory to the subsequent fermen... http://www.markbroyard.com/deal-time-caruso-s-rhodiola-tabs-50-discount-super-buy/