In the present study, freshly brewed tea (Camellia sinensis var. assamica) extract was concentrated using an aquaporin embedded hollow fibre membrane module (active area, 2.3 m²). The feed and draw (50g.L⁻¹, NaCl) solutions were circulated via tube and shell side of the membrane module with flow rate of 60 and 20 L.h⁻¹ respectively in counter-current mode. For dewatering, thermal and pressure-driven membrane processes are widely used in the food and beverage industries. These processes may not be economical beneficial compare to the forwarded osmosis process coupled with efficient draw solute regeneration process. The change in DS and FS concentrations were analysed using high performance liquid chromatography and ion chromatography. During FO experiment, the reverse and water flux decreased from (8.32 to 7.63) mg.m${}^{\mathrm{-2}}$h⁻¹ and (10.33 to 8.49) L.m${}_{\mathrm{.}}^{-2}$h⁻¹ respectively. The one-dimensional model of the Forward osmosis process was developed. The given model was validated using experimental data to predict the change in volume and concentration of feed and draw tank. The model predicted the experimental performance for aquaporin FO membrane within allowable error limits. The model developed can be successfully used in food processing industries for designing and optimisation of large scale FO process.

在本研究中，使用水通道蛋白包埋的中空纤维膜组件（有效面积为2.3 m ²）浓缩鲜茶提取物（茶花茶）。进料和汲取溶液（50g.L ^-1，NaCl）通过膜组件的管和壳侧流通，流速分别为60和20 Lh ^-1分别处于逆流模式。对于脱水，热和压力驱动的膜工艺广泛用于食品和饮料行业。与正向渗透过程以及有效的抽提溶质再生过程相比，这些过程可能不具有经济效益。使用高效液相色谱和离子色谱法分析DS和FS浓度的变化。在FO实验期间，反向和水通量从（8.32降至7.63）mg.m${}^{\mathrm{-2}}$h ^-1和（10.33至8.49）Lm${}_{\mathrm{。}}^{-2}$h ^-1。开发了正向渗透过程的一维模型。使用实验数据对给定的模型进行了验证，以预测进料和取水槽的体积和浓度的变化。该模型在允许误差范围内预测了水通道FO膜的实验性能。所开发的模型可以成功地用于食品加工行业，以设计和优化大规模FO工艺。