👉 The word allophane is a Greek term that refers to a specific type of polyphenolic compound in plants, typically found in leafy vegetables such as spinach and kale, and also in fruits such as raspberries and blueberries. The term 'allophanes' is derived from the Greek words allophane (plural) and phaneron (sweetness), which imply that these compounds are known to have a unique flavor profile.