As a result of increased interest and intensive research activity in m
icrocomponents of foods of plant origin, our knowledge concerning the
saponins of foods increased substantially in the last few years. Trite
rpenoid and steroid saponins occur primarily in legumes seeds, neverth
eless a lot of other foods and raw food materials contain small amount
s of saponins. Due to the low absorption and complexes formed with cho
lesterol, saponins do not cause toxicological problems, however the bi
tter taste and some technological characteristics may be a disadvantag
e. Saponin complexes were also mentioned as causing possible damage to
intestinal mucosa and formation of less digestible protein. It was al
so reported that a cholesterol lowering effect and antiviral activity
against human immunodeficiency virus (HIV) in vitro have been attribut
ed to saponins. Analytical methods used for determination and identifi
cation of saponins today are dominated by different chromatographic an
d specific instrumental methods.