The present invention relates to a process for the preparation of botanical fractions from fresh plant biomass and to compositions made from said fractions. The process comprises grinding and pressing fresh plant biomass in order to obtain a plant cell juice fraction containing membrane fractions, and treating said cell juice fraction with an electromagnetic field at a frequency effective to separate said membrane fraction from said cell juice fraction in order to yield a cell cytoplasm/cytosole fraction substantially-free from membrane fractions. The aforementioned treatment is advantageously performed such that the temperature of said cell juice during said treatment does not exceed 40℃.本發明係關於自新鮮植物生質製備植物部分之製程及由該等部分製得之組合物。該製程包括研磨及壓榨新鮮植物生質以獲得含有膜部分之植物細胞汁部分,及利用電磁場,在可自該細胞汁部分有效分離該膜部分之頻率下處理該細胞汁部分,產生實質上不含膜部分之細胞質/細胞質液部分。上述處理法宜使得該處理期間之該細胞汁之溫度不超過40℃。