Effect of added phyto-extracts on thiobarbituric acid reactive substances (TBARS) of pork frankfurters during refrigerated storage. Samples were treated as follows: CONTROL, without any extracts; SBT, 0.30% sea buckthorn seed extract; GSE, 0.10% grape seed extract; GTE, 0.03% green tea extract; FSE, 0.12% fenugreek seed extract; ACE, 0.10% Acacia catechu extract. Bar represents the standard error (n = 6).