亚热带植物科学
亞熱帶植物科學
아열대식물과학
SUBTROPICAL PLANT SCIENCE
2014年
1期
15-18
,共4页
大黄酸%提取工艺%单因素试验%正交试验
大黃痠%提取工藝%單因素試驗%正交試驗
대황산%제취공예%단인소시험%정교시험
Rhein%extraction process%single factor test%orthogonal test
以大黄酸含量为参考指标,通过单因素实验分别考察硫酸浓度(A)、液料比(B)、提取加热时间(C)、提取加热温度(D)对大黄中大黄酸提取量的影响,并根据单因素试验结果设计正交试验。结果表明,影响大黄中大黄酸提取工艺的主次因素为:加热温度D >加热时间C >硫酸浓度A >液料比B,大黄中大黄酸的最佳提取工艺为:15%硫酸、5∶1液料比、55℃加热回流2.5 h。此法操作性强,优选出最佳提取工艺条件,为开发大黄中泻下有效部位提供了理论依据。
以大黃痠含量為參攷指標,通過單因素實驗分彆攷察硫痠濃度(A)、液料比(B)、提取加熱時間(C)、提取加熱溫度(D)對大黃中大黃痠提取量的影響,併根據單因素試驗結果設計正交試驗。結果錶明,影響大黃中大黃痠提取工藝的主次因素為:加熱溫度D >加熱時間C >硫痠濃度A >液料比B,大黃中大黃痠的最佳提取工藝為:15%硫痠、5∶1液料比、55℃加熱迴流2.5 h。此法操作性彊,優選齣最佳提取工藝條件,為開髮大黃中瀉下有效部位提供瞭理論依據。
이대황산함량위삼고지표,통과단인소실험분별고찰류산농도(A)、액료비(B)、제취가열시간(C)、제취가열온도(D)대대황중대황산제취량적영향,병근거단인소시험결과설계정교시험。결과표명,영향대황중대황산제취공예적주차인소위:가열온도D >가열시간C >류산농도A >액료비B,대황중대황산적최가제취공예위:15%류산、5∶1액료비、55℃가열회류2.5 h。차법조작성강,우선출최가제취공예조건,위개발대황중사하유효부위제공료이론의거。
The factors affecting the extracting rhein from Rhubarb were investgated systematically. Taken rhein yeild as index, the effect of the concentration of sulfuric acid (A), liquid material ratio (B), extraction time (C), extraction temperature (D) on rhein yield were invesgated separately by single factor test. Orthogonal test were designed according to the single-factor test results. The factors affecting rhein yeild is in the order of extraction temperature, extraction time, concentration of sulfuric acid and liquid material ratio. The rhein was best extracted in 15%sulfuric acid, the liquid ratio of 5∶1, heated at 55 ℃ for 2.5 h. The method is simple. Process conditions are optimized, which form the scientific and reasonable bases for developing the Purge active parts from Rhubarb.