Kale – Scientific Studies and Research The extracts derived from both green and red curly kales, as pointed out by the study of Olsen, Grimmer, Aaby, Saha, andBorge (2012), possess antiproliferative action against three human colon cancer cell lines, namely, Caco-2, HT-29, and HCT 116, especially the extracts from fresh plant material. [5] In addition, glucosinolates and S-methylcysteine sulfoxide, two sulfur-containing phytochemicals found in kale, are reported to possess anticarcinogenic properties. [6] Furthermore, a chlorophyll-rich extract of kale inhibits carcinogen activation and scavenges reactive oxygen species and therefore has both antigenotoxic and antioxidant properties. In the study of Kwon, Yoon, Carter, Bailey, and Dashwood (2006), the chlorophyll-rich methanol extract of kale was deemed efficacious based upon measurements against the following parameters in assays: ferric-reducing or antioxidant power, oxygen radical absorbance capacity, and Fe2+/H2O2-mediated DNA nicking. The extract also manifests protective activities against H2O2-induced genotoxic damage in human HCT116 colon cancer cells. [7] The extract of kale (Brassica oleracea L. var. acephala DC) appears to also significantly increase the glutathione levels and thus to increasecellular antioxidant defenses, as demonstrated by the results of Fernandes et al. (2012). [8]
Posted on: Wed, 16 Jul 2014 06:58:50 +0000
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