Desiriani Ria, Kresnowati Made Tri Ari Penia, Julian Helen, Wenten I Gede
Chemical Engineering Department, Faculty of Industrial Technology, Institut Teknologi Bandung, Jl.Ganesha 10, Bandung, 40132 West Java Indonesia.
Food Engineering Department, Faculty of Industrial Technology, Institut Teknologi Bandung, Jatinangor Campus, Jln Let. Jend. Purn.Dr.(HC) Mashudi No 1. Jln Raya Jatinangor KM 20.75, Sumedang, Indonesia.
J Food Sci Technol. 2025 Mar;62(3):541-550. doi: 10.1007/s13197-024-06044-7. Epub 2024 Aug 11.
Oil palm empty fruit bunch (OPEFB) is one of the wastes that has high hemicellulose composition and potentially processed into xylitol via biotransformation route. This study explores the effectiveness of ultrafiltration (UF) and nanofiltration (NF) in purifying and concentrating xylitol from OPEFB hydrolysate-fermentation broth. Various UF membranes, including UF1 (MWCO 150 kDa), UF2-Psf (MWCO 20 kDa), and UF2-PVDF (MWCO 50 kDa), were used, along with NF (MWCO 150 Da). Pre-treating the broth before UF was crucial to remove foulants such as microorganisms and macromolecules. While microfiltration (MF) achieved 100% microorganism rejection, its flux declined rapidly, necessitating feed centrifugation before MF. The choice of UF membrane MWCO significantly influenced xylitol retention, with UF2-PSf leading to substantial xylitol loss and UF2-PVDF showed promising results. NF has shown its applicability in concentrating xylitol in the UF permeate as much as 4 times higher, while permeating 90% of the acetic adic in the solution.
The online version contains supplementary material available at 10.1007/s13197-024-06044-7.
油棕空果串（OPEFB）是一种半纤维素成分含量高的废弃物，有可能通过生物转化途径加工成木糖醇。本研究探讨了超滤（UF）和纳滤（NF）在从OPEFB水解发酵液中纯化和浓缩木糖醇方面的有效性。使用了各种超滤膜，包括UF1（截留分子量150 kDa）、UF2-Psf（截留分子量20 kDa）和UF2-PVDF（截留分子量50 kDa），以及NF（截留分子量150 Da）。在超滤之前对发酵液进行预处理对于去除微生物和大分子等污垢至关重要。虽然微滤（MF）实现了100%的微生物截留率，但其通量迅速下降，因此在微滤之前需要对进料进行离心处理。超滤膜截留分子量的选择对木糖醇保留率有显著影响，UF2-PSf导致大量木糖醇损失，而UF2-PVDF显示出有前景的结果。纳滤已显示出其在将超滤渗透液中的木糖醇浓缩高达4倍的同时，使溶液中90%的乙酸透过的适用性。
在线版本包含可在10.1007/s13197-024-06044-7获取的补充材料。
