The inhibitor), effect of hop bract polyphenols (HBP) on cariogenic streptococci was investigated. It wu'as fbund that the high molecular weight polyphenol (estimated about 36,OeO-40,OOO) inhibited the cellular adherence of Streptoeoccus mutans MT8148 (serotype C) and Streptoeoeeus sobrinus ATCC 33478 (serotype g) at msuch smaller concentrations than the polyphenols extracted from oe)ong tea or...

BACKGROUND Cotton is an important domesticated fiber used to manufacture a variety of products and industrial goods. During harvesting with cotton strippers and cotton pickers, it is contaminated with foreign matter from botanical and non-botanical sources which adversely affect the quality and consistency of cotton, and therefore reduces its market value. To improve the current grading done by...