The new process to separate lactic acid from fermentative liquid through film ultrafiltering and ion exchanging is introduced.
介绍了采用膜分离与离子交换相结合分离乳酸的新工艺。
OBJECTIVE To study the anticoagulant activity of propylene glycol alginate sodium sulfate (PSS) and its ultrafiltering subfractions.
目的利用膜分离超滤技术对藻酸双酯钠（PSS）及其分级产物进行抗凝血活性的比较研究。
OBJECTIVE To study the anticoagulant activity of propylene glycol alginate sodium sulfate (PSS) and its ultrafiltering subfractions.
目的利用膜分离超滤技术对藻酸双酯钠（PSS）及其分级产物进行抗凝血活性的比较研究。
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