Fischer J J, Morey P R, Foarde K K
Am Ind Hyg Assoc J. 1986 Jul;47(7):421-6. doi: 10.1080/15298668691389982.
The botanical composition of representative raw cottons from seven different growing regions was determined by manual removal and identification of all trash components greater than 50 micron in size. The number of gram negative bacteria (GNB) and the amount of endotoxin present in each of the separated raw cotton components were quantified. Low middling cotton contained significantly more bract-leaf trash than that found in higher quality cottons such as those in the middling grade division. Significantly more GNB and endotoxin were found in botanical trash components as well as lint of raw cotton derived from the southwest and southeast growing regions as compared to similar botanical components from far west cottons. For representative raw cottons from the 1980 USA crop we determined that 67% of the GNB and 89% of the endotoxin resided on white lint itself, from which all particulate larger than 50 micron in size had been removed manually.
通过人工去除并识别所有尺寸大于50微米的杂质成分，确定了来自七个不同种植区域的代表性原棉的植物成分。对分离出的各原棉成分中革兰氏阴性菌（GNB）的数量和内毒素含量进行了定量分析。低中等级棉花所含的苞叶杂质明显多于中等品级及以上等较高品质棉花中的苞叶杂质。与远西地区棉花的类似植物成分相比，来自西南和东南种植区域的原棉的植物杂质成分以及棉绒中发现的GNB和内毒素明显更多。对于1980年美国作物的代表性原棉，我们确定67%的GNB和89%的内毒素存在于已人工去除所有尺寸大于50微米颗粒的白色棉绒本身。
