發明
中華民國
102112199
I 447103
從杜莎藻製備9-順式-β-胡蘿蔔素及反式-β-胡蘿蔔素之方法
國立中興大學
2014/08/01
本研究結合超臨界抗溶沉澱和逆向管柱純化兩種程序,分離純化出9-順式和反式β-胡蘿蔔素。β-胡蘿蔔素的濃度從超音波萃取的338.9 mg/g(含9-順式134.7以及反式204.2 mg/g),增加至82%乙醇沖提液的859.7 mg/g(9-順式338.9及反式520.8 mg/g)完後,以超臨界流體抗溶沉澱技術,使β-胡蘿蔔素濃度提升到932.1 mg/g(9-順式355.6 mg/g及反式576.5 mg/g),回收率達86.3%(9-順式83.8%及反式87.8%),同時配合預實驗探討抗溶沉澱技術的操作條件,對沉澱物中β-胡蘿蔔素的濃度、回收率與沉澱顆粒大小之影響。最後,以兩變因的應答曲面實驗設計方法,在固定進料流率0.6 ml/min、進料濃度5 mg/ml、二氧化碳流速15 L/min及抗溶溫度60 °C的條件下,改變抗溶壓力90至130 bar與沉澱時間10至30 min分離進行實驗,實驗結果顯示出抗溶壓力及沉澱時間均對沉澱物中β-胡蘿蔔素純度,有最大極值的關係。但沉澱顆粒粒徑則隨著抗溶壓力增加而變小,沉澱時間增加而變大。超臨界二氧化碳抗溶沉澱提供了一種對環境友善的製程來生產富含9-順式-β-胡蘿蔔素及反式-β-胡蘿蔔素的微粒。 supercritical anti-solvent pulverization coupled with reverse phase elution chromatography was employed to isolate 9-cis and trans-β-carotenes. Total concentration of 9-cis (134.7) and trans-β-carotene (204.2) increased from 338.9 mg/g of the ultrasonic extract to 859.7 mg/g (338.9 for cis and 520.8 for trans) of the elution fraction by 82% ethanol. Supercritical anti-solvent (SAS) method produced particulates containing 932.1 mg/g (355.6 for cis and 576.5 for trans) of total β-carotenes with a total recovery of 86.3% (83.8% for cis and 87.8% for trans). Effects of two SAS operational parameters on the precipitated amount, total β-carotene recovery, mean size and morphology of the precipitates were obtained from pre-experiment. Subsequently, two-factor response surface method designed SAS precipitation by changing pressure from 90 to 130 bar and time from 10 to 30 min at feed flow rate of 0.6 ml/min, feed concentration of 5 mg/ml, CO2 flow rate of 15 L/min and temperature of 60 °C.
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