Compound radical

maximowiczii KT 96 6.8 KT 97 0 KT 98 95.7 (I[C.sub.50] 20 [micro]M) KT 99 96.5 (I[C.sub.50] 37 [micro]M) KT 100 100.2 (I[C.sub.50] 2.5 [micro]M) KT 101 89.4 (I[C.sub.50] 10 [micro]M) Cysteine 78.9 (I[C.sub.50] 45 [micro]M) [alpha]- Tocopherol 43.2 (c) (I[C.sub.50] 240 [micro]M) Plant Compound Radical scavenging Category ([DELTA][A.sub.517]) (b) F.

More than thirty years earlier Lavoisier had proposed that organic acids were made up of oxygen combined with a "compound radical" (organic residue) [10].