In a new study that investigated the effect of aboriginal methods using papaya leaf for medicinal effects, the researchers found that the traditional decoctions (boiling the leaves) had LESS effect on cancer cells than the fresh juice from the leaves. This research result is not surprising, as the enzyme papain in the leaf is most effective at 150-160 degrees F.
The researchers also called their alternative boiling method “brewing”…as in “brewing” tea.
Tea enthusiasts would not connect to this definition as “brewing” tea is a delicate act of boiling water, letting it cool to the proper temperature, (typically 150-160 F) then pouring over the tea.
Related to its (papaya leaf tea) effect on cancer, I would encourage the scientists to test again a true, “classically brewed” papaya leaf against the papaya juice to find its effect on this set of cancer cells in the lab.
Again, it is glorious to see strong research indicating the selective effect of papaya leaf on SCC25 cancer cells. Exciting research. Thank you to the team in Australia!!
Traditional Aboriginal Preparation Alters the Chemical Profile of Carica papaya Leaves and Impacts on Cytotoxicity towards Human Squamous Cell Carcinoma
Feb 1, 2016
Thao T. Nguyen1, Marie-Odile Parat1, Paul N. Shaw1, Amitha K. Hewavitharana1, Mark P. Hodson1,2*
1 School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia, 2 Metabolomics Australia, Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane, Queensland, Australia