One verse

Srimad Bhagavatam 3.26.42

3.26.42

कषायो मधुरस्तिक्त: कट्‍वम्‍ल इति नैकधा । भौतिकानां विकारेण रस एको विभिद्यते ॥ ४२ ॥

kasayo madhuras tiktah katv amla iti naikadha bhautikanam vikarena rasa eko vibhidyate

kasayah
astringent
madhurah
sweet
tiktah
bitter
katu
pungent
amlah
sour
iti
thus
na-ekadha
manifoldly
bhautikanam
of other substances
vikarena
by transformation
rasah
the subtle element taste
ekah
originally one
vibhidyate
is divided.

Although originally one, taste becomes manifold as astringent, sweet, bitter, pungent, sour and salty due to contact with other substances.