Berkeley Archives - Botanical Colors

Video From LIVE FEEDBACK FRIDAY: Ethnobotany with Deepa Preeti Natarajan

This week’s FEEDBACK FRIDAY was with Deepa Preeti Natarajan who guided us with ethnobotany to how we can be better plant stewards and natural dyers. Watch the video recording here: Deepa has been the Program Coordinator for the University of California Botanical Garden at Berkeley for the past 15 years having the unique opportunity to transform her love of plants into a year-round series of classes, workshops, exhibits, tours, and events. Along this journey she developed a passion for natural dyes and sustainable fashion and was introduced to the field of ethnobotany. In 2018 she traveled to England to pursue … Read more

This Indigo Research Could Make Blue Jeans Green

According to Phys.org, Berkeley bioengineering professor John Dueber has studied the chemical steps plants use to naturally make indigo, and he thinks he has found an environmentally green way for the industry to churn out the dye without the use of toxic compounds. “When plant leaves are healthy, a chemical precursor to indigo, called indican, is caged within a sugar molecule and isolated from the rest of the cell in an organelle. Only when leaves are damaged is indican released from this compartment. The sugar protective cage is removed, allowing a chemical change that makes indigo. Green leaves turn blue. … Read more