Astanga Hrudaya
आदौ षड्रसमप्यन्नं मधुरीभूतमीरयेत्। फेनीभूतं कफं, यातं विदाहादम्लतां ततः॥५७॥
Formation of kapha, pitta and vata by foods: Although the food consists of all the six tastes, it first becomes madhura (sweet) and gives rise to the production of kapha, of frothy nature; next undergoing further cooking it becomes amla (sour) and gives rise to the production of pitta;
english translation
Adau SaDrasamapyannaM madhurIbhUtamIrayet। phenIbhUtaM kaphaM, yAtaM vidAhAdamlatAM tataH॥57॥
hk transliteration by Sanscript