Using Wastewater to Enhance Mint Production
Date: 7.3.2011
When essential oils are extracted from plants through the process of steam distillation, wastewater is produced and subsequently released into rivers and streams. Finding new uses for these unused by-products could benefit essential oil crop growers and processors as well as the environment. A team of researchers has found that the residual distillation water of some aromatic plant species has a beneficial effect on yields and can increase essential oil content of peppermint and spearmint crops.
One previous study of plant distillation wastewater found that wastewater from sage, thyme, and rosemary contained antioxidants and could be used as an ingredient in marinades for turkey meat. "We hypothesized that residual distillation water could have an effect on peppermint and spearmint plants when used as a foliar spray", said Mississippi State University professor Valtcho D. Zheljazkov, corresponding author of a study that tested plant hormones and distillation wastewater on peppermint and spearmint plants.
Publication:
Zheljazkov, Valtcho D., Astatkie, Tess, Horgan, Thomas, Rogers, S. Marie. Effect of Plant Hormones and Distillation Water on Mints. HortScience, 2010 45: 1338-1340
Source:
