| Tea seed oil was stored in tea seed oil body and tea seed oil body had obviously boundary film. As a result, it was completely possible to separate tea seed oil bodies from tea seed milk. The effective separation of tea seed oil bodies could be realized through the stratification phenomenon of tea seed milk by static fermentation. The performance of stratification phenomenon of tea seed milk by static fermentation was that after tea seed milk was fully and naturally fermented at optimal temperature, fermentation broth was naturally separated into three layers: tea seed oil bodies in top layer, tea saponin solution in middle layer, tea seed starch in bottom layer. The purity of tea seed oil in top layer reached 95% by twice fermentation. The crude tea seed oil with high quality could be obtained when the purified tea seed oil body was heated. The productivities of crude tea seed oil and starch reached 16% and 8% respectively through stratification phenomenon of tea seed milk by static fermentation, and the pollution and adsorbance of other compositions in tea seed onto tea seed oil were avoided effectively, which simplified the subsequent refining work of crude tea seed oil greatly. |
