CAJ | 학술논문

采用纳滤技术进行鱼鳞小分子胶原肽提取液的脱盐小试实验，研究了不同分子量的纳滤膜对料液脱盐效果及胶原肽回收率的影响。实验结果表明，截留分子量为700 u的卷式纳滤膜能够有效地除去鱼鳞胶原肽提取液中的无机盐类。脱盐后，鱼鳞胶原肽提取液的电导率从26.9 ms／cm下降到80.3μs／cm，无机盐浓度从13.9 g／L下降到0.04 g／L ，胶原肽的回收率为72.7％，最终产品的灰分为0.79％。
채용납려기술진행어린소분자효원태제취액적탈염소시실험，연구료불동분자량적납려막대료액탈염효과급효원태회수솔적영향。실험결과표명，절류분자량위700 u적권식납려막능구유효지제거어린효원태제취액중적무궤염류。탈염후，어린효원태제취액적전도솔종26.9 ms／cm하강도80.3μs／cm，무궤염농도종13.9 g／L하강도0.04 g／L ，효원태적회수솔위72.7％，최종산품적회분위0.79％。
Nanofiltration technology was applied to the desalination of small-molecule collagen peptide ex-traction from fish scale. The impact of nanofiltration membranes with different molecular weight cut off (MW-CO)on the desalination effect and collagen recovery was researched. The result showed that the optimal mem-brane was the nanofiltration membrane with MWCO 700 u. After desalination,the conductivity of collagen peptide extraction decreased from 26.9 ms/cm to 80.3 μs/cm and the inorganic salt concentration decreased from 13.9 g/L to 0.04 g/L. The recovery rate of collagen peptide was 72.7%. The ash content in the final product was 0.79%.