The pericarp of soapnut (Sapindus mukorossi Gaertn) has been used for cleaning in Taiwan for hundred years. People also used it for burnishing jewels.

• 摘要:无患子在台湾早期就有用来清洁的纪录，至少已有数百年的历史。无患子除了含有皂素外还含有油脂，洗涤器物后会产生光泽，因此珠宝界直到今天仍用来清洗首饰。