Astanga Hrudaya
प्रियः पिपीलिकादीनाम् अम्लः क्षालयते मुखम्। हर्षणो रोमदन्तानामक्षिभ्रुवनिकोचनः॥३॥
It is liked even by ants Amla (sour): Amla (sour) makes the mouth watery, causes horripilation, tingling of the teeth and leads to closing of the eyes and brows.
english translation
priyaH pipIlikAdInAm amlaH kSAlayate mukham। harSaNo romadantAnAmakSibhruvanikocanaH॥3॥
hk transliteration by Sanscript