The method for producing the fruit juice comprises partially decomposing pectin in fruit juice with a pectolytic enzyme, clarifying and filtering the partially decomposed pectin with a microfilter (MF) membrane to obtain the transparent fruit juice containing a water-soluble pectin. 果汁中のペクチンをペクチン分解酵素でパーシャル分解し、MF(マイクロフィルター)膜で清澄ろ過し、水溶性ペクチンを含有した透明果汁を得る。 - 特許庁