Raghuprasad P K, Brooks S M, Litwin A, Edwards J J, Bernstein I L, Gallagher J
J Allergy Clin Immunol. 1980 Apr;65(4):285-7. doi: 10.1016/0091-6749(80)90157-8.
A 24-yr-old man developed sensitization to Quillaja bark (soapbark) dust at his work place. Within 3 mo of being employed in a factory processing Quallaja bark to produce saponin, he experienced asthma symptoms while handling the bark but only nasal symptoms on being exposed to the purified saponin. Bronchial provocation using Quillaja bark dust resulted in immediate bronchoconstriction as well as faintness, diffuse erythema, and hypotension. Radioallergosorbent test (RAST) using the pulverized crude Quillaja bark was markedly positive, and cross-reactivity between gum acacia and gum tragacanth was demonstrated using this technique.
一名24岁男子在其工作场所对皂树树皮（肥皂树皮）粉尘产生了过敏反应。在一家将皂树树皮加工生产皂苷的工厂工作3个月内，他在处理树皮时出现哮喘症状，但接触纯化皂苷时仅出现鼻部症状。使用皂树树皮粉尘进行支气管激发试验导致立即出现支气管收缩以及头晕、弥漫性红斑和低血压。使用粉碎的粗皂树树皮进行放射变应原吸附试验（RAST）呈明显阳性，并且使用该技术证明了阿拉伯树胶和刺梧桐树胶之间存在交叉反应性。
