Screening of antioxidant activity and antioxidant compounds of some edible plants of Thailand

Anticlastogenic Effect of Eryngium foetidum L. Assessed by Erythrocyte Micronucleus Assay

“…It is possible that those phytochemical compounds are antioxidant compounds which play an important role in preventing and repairing damages of cells (Floyd, 1990;Bagchi and Puri, 1998;Flora, 2007;Pham-Huy et al, 2008). The antioxidant activity of EF is supported by the study of Chanwitheesuk and coworkers (Chanwitheesuk et al, 2005) who have reported that the contents (mg%) of antioxidant compounds using a β-carotene bleaching method in dried EF were vitamin C (11.4±0.007), vitamin E (0.0069±0.0007), total carotenes (1.92±0.03), total xanthophylls (1.60±0.05), tannins (17.7±0.08), total phenolics (98.4±0.08), and antioxidant index was 5.65±0.46. A recent study provides supportive data on antioxidant and anti-inflammatory properties of EF leaves in LPS-induced murine macrophage cell lines (Mekhora et al, 2012).…”

Cytotoxic Effects of Phytophenolics from Caesalpinia mimosoides Lamk on Cervical Carcinoma Cell Lines through an Apoptotic Pathway

“…The young shoots and leaves of C mimosoides Lamk are used as a fresh dietary vegetable indicating possible safety for its future therapeutic utilization, and it has been reported to exhibit anti-microbial (Chanwitheesuk et al, 2007) and anti-oxidant activities (Chanwitheesuk et al, 2005). Potential anti-inflammatory diterpenoids have been isolated from the roots of C mimosoides Lamk (Yodsaoue et al, 2010).…”

“…From 27 fractions obtained, 5 fractions (F17-F21) exhibited an inhibitory effect against HeLa cell growth (Table 1). Similarly, previous phytochemical and bioactivity studies of C mimosoides Lamk have obtained bioactive substances from the polar components rather than the non-polar components (Chanwitheesuk et al, 2005;2007;Kim, 2007;Yodsaoue et al, 2010).…”

Antioxidant activities of lead (Leucaena leucocephala) seed as affected by extraction solvent, prior dechlorophyllisation and drying methods

“…When calculated with reference to the weight of lead seed, the higher phenolic compounds were extracted (9.7 g GA equivalent/ 100 g lead seed) from seed without prior chlorophyll removal, compared with those from non-prior chlorophyll removal counterpart (8.7 g GA equivalent/ 100 g lead seed) (P<0.05). Total phenolics in shoot tip of Leucaena leucocephala grown in Thailand were 405 and 60.6 mg/100 g dry matter, respectively (Chanwitheesuk et al 2005). Phenolics are distributed non-uniformly at the tissue, cellular and subcellular levels (Naczk and Shahidi 2004).…”