Päiväkirja-arkisto kohteelle kesäkuu 2021

kesäkuu 1, 2021

early uses of cochineal insects

Perhaps you knew this and know of other instances, but I wanted to share in case it is new to you. My son is currently part of a project digitizing an early French manuscript of "recipes" from the 1500's. Today, he is in a lab at college making one of these recipes with his boss and team on the project. They have obtained a bag full of cochineal insects and are making a red pigment using the original recipe from the manuscript. Not only do I find this wonderfully, nerdy, and cool, I learned something new and I hope you do too.

Here is the iNat taxon page for cochineal scale insects and it describes the uses of this bug in making pigment: https://www.inaturalist.org/taxa/202091-Dactylopius

My son sent me a short video from the lab showing how the pigment (in liquid form) was hot pink and then turned a lighter bubblegum color as he added an alum solution to the base. I'm looking forward to hearing more about the process from him as they finish it up.

As of this moment, I cannot remember the details of the French manuscript, but will add that once I hear back. Enjoy!

Edit: manuscript dates from 1500's (corrected above), and it is "Making and Knowing", for more details check out: edition640.makingandknowing.org

Julkaistu kesäkuu 1, 2021 04:36 IP. käyttäjältä scubabruin scubabruin | 2 kommenttia | Jätä kommentti