The flavonoids is a kind of complex compound and quercetin is a main composition in rape pollen.Taking quercetin as a sample and using separation technology and high performance liquid chromatography,chromatography fi...The flavonoids is a kind of complex compound and quercetin is a main composition in rape pollen.Taking quercetin as a sample and using separation technology and high performance liquid chromatography,chromatography fingerprint technique of Chinese medicine is introduced in food field to construct chromatography fingerprint of rape pollen,which can be used for medicinal use and edible use.The method will become a beneficial supplement for quality control method to ensure the safety and effectiveness of products.展开更多
Four peptide components RP1,RP2,RP3Ⅰ and RP3Ⅱ were purified from the water—ex- tract of rape(Brassica campestris L.)pollen.The primary sequence of RP3I,with 12 amino acid residues,has been determined by Edman degra...Four peptide components RP1,RP2,RP3Ⅰ and RP3Ⅱ were purified from the water—ex- tract of rape(Brassica campestris L.)pollen.The primary sequence of RP3I,with 12 amino acid residues,has been determined by Edman degradation—N—terminal dansylation.The immunopro- motive activities of the initially separated sample and RP3I have been also observed in vitro.展开更多
A dodecapeptide extracted from rape pollen was synthesized using solid—phase method,its conforma- tions in different states were studied by FT—IR,CD,and its physiological activities were determined.Seven segments an...A dodecapeptide extracted from rape pollen was synthesized using solid—phase method,its conforma- tions in different states were studied by FT—IR,CD,and its physiological activities were determined.Seven segments and five analogs were also synthesized to elucidate the structure—function relation.展开更多
目的基于质量源于设计(quality by design,QbD)理念对油菜花粉颗粒进行制备工艺研究及质量控制。方法以油菜花粉颗粒成型率(%)、休止角(°)、平衡吸湿率(%)为评价指标,通过G1-熵权法组合赋权得到综合评价指标,单因素试验结合Box-Beh...目的基于质量源于设计(quality by design,QbD)理念对油菜花粉颗粒进行制备工艺研究及质量控制。方法以油菜花粉颗粒成型率(%)、休止角(°)、平衡吸湿率(%)为评价指标,通过G1-熵权法组合赋权得到综合评价指标,单因素试验结合Box-Behnken响应面法优化油菜花粉颗粒制备工艺。采用物理指纹图谱评价不同批次油菜花粉颗粒的物理质量一致性并测定临界相对湿度。结果油菜花粉颗粒最佳制备工艺为:淀粉、甘露醇作为填充剂,药辅比1∶2、乙醇浓度55%、辅料配比7∶3。10批油菜花粉颗粒物理指纹图谱相似度均大于0.99。结论基于QbD理念的油菜花粉颗粒制备工艺稳定可行,可用于油菜花粉颗粒的制备。展开更多
文摘The flavonoids is a kind of complex compound and quercetin is a main composition in rape pollen.Taking quercetin as a sample and using separation technology and high performance liquid chromatography,chromatography fingerprint technique of Chinese medicine is introduced in food field to construct chromatography fingerprint of rape pollen,which can be used for medicinal use and edible use.The method will become a beneficial supplement for quality control method to ensure the safety and effectiveness of products.
文摘Four peptide components RP1,RP2,RP3Ⅰ and RP3Ⅱ were purified from the water—ex- tract of rape(Brassica campestris L.)pollen.The primary sequence of RP3I,with 12 amino acid residues,has been determined by Edman degradation—N—terminal dansylation.The immunopro- motive activities of the initially separated sample and RP3I have been also observed in vitro.
文摘A dodecapeptide extracted from rape pollen was synthesized using solid—phase method,its conforma- tions in different states were studied by FT—IR,CD,and its physiological activities were determined.Seven segments and five analogs were also synthesized to elucidate the structure—function relation.
文摘目的基于质量源于设计(quality by design,QbD)理念对油菜花粉颗粒进行制备工艺研究及质量控制。方法以油菜花粉颗粒成型率(%)、休止角(°)、平衡吸湿率(%)为评价指标,通过G1-熵权法组合赋权得到综合评价指标,单因素试验结合Box-Behnken响应面法优化油菜花粉颗粒制备工艺。采用物理指纹图谱评价不同批次油菜花粉颗粒的物理质量一致性并测定临界相对湿度。结果油菜花粉颗粒最佳制备工艺为:淀粉、甘露醇作为填充剂,药辅比1∶2、乙醇浓度55%、辅料配比7∶3。10批油菜花粉颗粒物理指纹图谱相似度均大于0.99。结论基于QbD理念的油菜花粉颗粒制备工艺稳定可行,可用于油菜花粉颗粒的制备。