酵素 こうそ てき褐変 かっぺんじゃありませんでした
kōsotekikappenjārimasendeshita

Noun
Desu Copula

The polite, past negative form of 酵素的褐変

1. Was not enzymatic browning.; Wasn't enzymatic browning.

Past/Perfective
Negative
Polite
Terminal Form