用响应面法研究了微波法提取扶芳藤抗氧化物质的最佳工艺。考察了乙醇体积分数(X1)、乙醇用量(X2)、提取时间(X3)、提取温度(X4)4个因素的影响。微波提取的优化工艺条件是:乙醇体积分数49.4%、乙醇用量44 mL、提取时间9 m in、提取温度4...用响应面法研究了微波法提取扶芳藤抗氧化物质的最佳工艺。考察了乙醇体积分数(X1)、乙醇用量(X2)、提取时间(X3)、提取温度(X4)4个因素的影响。微波提取的优化工艺条件是:乙醇体积分数49.4%、乙醇用量44 mL、提取时间9 m in、提取温度41℃,与模型预测值基本相符。说明微波方法可较好地应用于扶芳藤抗氧化物质的提取,通过响应面法得到一个能较好预测实验结果的模型方程。展开更多
In this paper,a protocol for efficient shoot regeneration was successfully developed from hypocotyl explants of Euonymus fortunei var.radicans.Some factors that influenced shoot regeneration such as different combinat...In this paper,a protocol for efficient shoot regeneration was successfully developed from hypocotyl explants of Euonymus fortunei var.radicans.Some factors that influenced shoot regeneration such as different combinations of plant growth regulators,types of medium and inoculation ways were studied in order to establish an efficient plant regeneration for transformation.The results showed that hypocotyl explants were horizontally cultured on a basic medium composed of MS medium supplemented with 0.5 mg·L-1 BAP and 0.01 mg·L-1 NAA for induction and development of adventitious shoots.Ninety-four percent of regeneration frequency and 5.1 shoots per explants were obtained after 30 days of culture.Regenerated shoots proliferated efficiently on a shoot multiplication medium consisting of MS medium containing 1.0 mg·L-1 BAP and 0.1 mg·L-1 NAA.Microshoots were rooted on a rooting medium made up of MS medium enriched with 0.5 mg·L-1 IBA and 0.5 mg·L-1 IAA.After hardening,90% of plants were successfully established under greenhouse conditions.Histological observation revealed that shoot primordium originated from subepidermal cells of hypocotyl explants and directly developed into adventitious shoots without callus formation.展开更多
文摘用响应面法研究了微波法提取扶芳藤抗氧化物质的最佳工艺。考察了乙醇体积分数(X1)、乙醇用量(X2)、提取时间(X3)、提取温度(X4)4个因素的影响。微波提取的优化工艺条件是:乙醇体积分数49.4%、乙醇用量44 mL、提取时间9 m in、提取温度41℃,与模型预测值基本相符。说明微波方法可较好地应用于扶芳藤抗氧化物质的提取,通过响应面法得到一个能较好预测实验结果的模型方程。
基金supported by Beijing Municipal Science and Technology Commission(H020620110130)
文摘In this paper,a protocol for efficient shoot regeneration was successfully developed from hypocotyl explants of Euonymus fortunei var.radicans.Some factors that influenced shoot regeneration such as different combinations of plant growth regulators,types of medium and inoculation ways were studied in order to establish an efficient plant regeneration for transformation.The results showed that hypocotyl explants were horizontally cultured on a basic medium composed of MS medium supplemented with 0.5 mg·L-1 BAP and 0.01 mg·L-1 NAA for induction and development of adventitious shoots.Ninety-four percent of regeneration frequency and 5.1 shoots per explants were obtained after 30 days of culture.Regenerated shoots proliferated efficiently on a shoot multiplication medium consisting of MS medium containing 1.0 mg·L-1 BAP and 0.1 mg·L-1 NAA.Microshoots were rooted on a rooting medium made up of MS medium enriched with 0.5 mg·L-1 IBA and 0.5 mg·L-1 IAA.After hardening,90% of plants were successfully established under greenhouse conditions.Histological observation revealed that shoot primordium originated from subepidermal cells of hypocotyl explants and directly developed into adventitious shoots without callus formation.
