Recipes with:

Lemon

The universal acidic tool. Its flavedo (zest) is a mine of volatile terpenes (limonene) extracted by micro-grating or infusion in lipids (butter, oil). Its albedo (white pith) contains massive pectins ideal for setting marmalades, but is fraught with bitterness. Its juice, pure citric acid with a pH of around 2, is a protein denaturing agent: in contact with raw fish flesh (ceviche), it modifies the three-dimensional structure of the proteins, turning the flesh opaque and chemically simulating "cooking" without any heat application.