Thought I'd share as Im very excited about this.
Last week D got Am up in the morning and found she had thrown up in the middle of the night. He knew this because her sleeper, as well as, the 4 blankets she was sleeping with were covered in bright yellow Curcumin stains. They were already dry, so I didnt have much hope for getting them out, but did a quick search and found someone claiming dishsoap worked to remove curcumin. I doused the outfit and blankets in Seventh Generation dish liquid, rubbed the fabric together, and then washed them. When I pulled them out of the washer, the stains were noticeably lighter, but still there. I then tried putting zout on them, rubbing the fabric together and rewashed. D ended up putting in the dryer and I forgot to warn him about checking, but as it turns out, everything is 100% stain free. The worst of the blankets is white and light pink, and there is NO trace of any curcumin -- yey!