Thiols, characterised by having sulfhydryl derivatives of organic
sulfurs, play a pivotal role in the antioxidant defense system as
well as in protein synthesis, formation, redox-sensitive signal
transduction, cellular growth and proliferation, organising programmed
cell death, and the immune system. Recent studies show
that fruits, vegetables, and species have significant amounts of biothiols
like glutathione (GSH), cysteine (Cys), homocysteine (HCys),
g-glutamyl cysteine (GGC), and captopril (CAP)