中国食品添加剂
中國食品添加劑
중국식품첨가제
CHINA FOOD ADDITIVES
2009年
4期
117-121
,共5页
金樱子%黄酮%酶法提取%复合酶
金櫻子%黃酮%酶法提取%複閤酶
금앵자%황동%매법제취%복합매
Rosa laevigata%flavonoids%enzymatic extraction%compound enzyme
对金樱子黄酮类化合物的酶法提取工艺进行了研究.采用单因素实验考察了纤维素酶、果胶酶、木瓜蛋白酶、复合酶(纤维素酶+果胶酶+β-葡聚糖酶+半纤维素酶+木瓜蛋白酶)对总黄酮提取率的影响及酶解温度,酶解液pH值,酶解时间和酶用量对总黄酮产量的影响,通过正交试验设计确定了酶法提取金樱子总黄酮的最佳提取工艺条件:酶解温度为50℃,酶解液初始pH=4.5,酶解时间为120min,酶的用量为0.35mg/mL的复合酶(纤维素酶+果胶酶+β-葡聚糖酶+半纤维素酶+木瓜蛋白酶).实验结果表明:在一定条件下,复合酶的酶解效果比单一酶好,纤维素酶酶解效果比果胶酶好,木瓜蛋白酶在单独使用时基本没有效果.根据正交实验确定的最佳酶提取工艺条件与传统的直接醇提取工艺相比,金樱子总黄酮产量提高了26.2%.
對金櫻子黃酮類化閤物的酶法提取工藝進行瞭研究.採用單因素實驗攷察瞭纖維素酶、果膠酶、木瓜蛋白酶、複閤酶(纖維素酶+果膠酶+β-葡聚糖酶+半纖維素酶+木瓜蛋白酶)對總黃酮提取率的影響及酶解溫度,酶解液pH值,酶解時間和酶用量對總黃酮產量的影響,通過正交試驗設計確定瞭酶法提取金櫻子總黃酮的最佳提取工藝條件:酶解溫度為50℃,酶解液初始pH=4.5,酶解時間為120min,酶的用量為0.35mg/mL的複閤酶(纖維素酶+果膠酶+β-葡聚糖酶+半纖維素酶+木瓜蛋白酶).實驗結果錶明:在一定條件下,複閤酶的酶解效果比單一酶好,纖維素酶酶解效果比果膠酶好,木瓜蛋白酶在單獨使用時基本沒有效果.根據正交實驗確定的最佳酶提取工藝條件與傳統的直接醇提取工藝相比,金櫻子總黃酮產量提高瞭26.2%.
대금앵자황동류화합물적매법제취공예진행료연구.채용단인소실험고찰료섬유소매、과효매、목과단백매、복합매(섬유소매+과효매+β-포취당매+반섬유소매+목과단백매)대총황동제취솔적영향급매해온도,매해액pH치,매해시간화매용량대총황동산량적영향,통과정교시험설계학정료매법제취금앵자총황동적최가제취공예조건:매해온도위50℃,매해액초시pH=4.5,매해시간위120min,매적용량위0.35mg/mL적복합매(섬유소매+과효매+β-포취당매+반섬유소매+목과단백매).실험결과표명:재일정조건하,복합매적매해효과비단일매호,섬유소매매해효과비과효매호,목과단백매재단독사용시기본몰유효과.근거정교실험학정적최가매제취공예조건여전통적직접순제취공예상비,금앵자총황동산량제고료26.2%.
The process for enzymatic extracting flavonoids from Rosa laevigata was studied.By single-factor experiment,the effect of the type of enzyme such as cellulase,pectinase,Papain,compoundcomplex(cellulase,pectinase,β-glucanase, Hemicellulase and Papain),hydrolysis temperature,enzyme solution pH,digestion time and the enzyme dosage on the yield of total flavonoids were investigated.The optimum extraction condition obtained from orthogonal design of experiment is as follows:hydrolysis temperature 50℃,the initial enzyme solution pH4.5,enzymolysis time 120 min,the amount of compound enzyme 0.35mg/mL(cellulase + pectinase +β-glucanase + Hemicellulase +Papain).It was found that compound enzyme is better than single enzyme under certain conditions;cellulase is normally better than pectinase while papain have little effect when used alone.Yield of total flavonoids increased by 26.2 percent by using the optimum enzyme process conditions,as compared with the traditional direct alcohol extract process.