CAS: 16727-30-3; Malvidin 3,5-Di-O-β-Glucopyranoside Chloride

上下游产品

29H36O18C29H36O18hirsutrin 29H36O18C29H36O18

📜以 重水 用作溶剂,化学反应生成氯化锦葵色素苷
参考文献:一维和二维核磁共振法阐明马尔文在水溶液中的多重平衡
标题:一维和二维核磁共振法阐明马尔文在水溶液中的多重平衡
摘要:摘要 一维和二维 NMR 用于表征在 Ph 值范围 0.3-4.5 的水溶液中存在的几种形式的马尔文,并确定它们的摩尔分数作为 Ph 值的函数.除了黄酮阳离子,两种半缩醛形式以及查耳酮的顺式和反式两种形式都得到了明确的鉴定.推导出了不同形式相互转化的途径,并通过耦合 NMR 和 Uv/vis 数据计算了物质的摩尔吸光度.在不同温度下确定平衡常数,并计算互变过程的焓和熵变化.这些结论得到了分子轨道计算的支持.
Doi:10.1016/0031-9422(93)85054-U

专利信息

专利号:US-2007232495-A1
优先权日:2006-03-24
标题:Compositions and methods to add value to plant products, increasing the commercial quality, resistance to external factors and polyphenol content thereof
发明人：NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
权利人:NAPPA ALVARO O; LORENZINI FELIPE C; SANHUEZA ANDRES L
摘要:The invention is related to compositions and methods that naturally protect plant tissues against ultraviolet radiation and temperature, thus giving protection against sunburn to plants, plant parts, fruits and/or flowers during their development. The invention is also related to compositions and methods to naturally improve the color of plants, plant parts, fruits and/or flowers by inducing the natural synthesis of flavonoids and anthocyanins present in plants. Likewise, the present invention is directed to improving the nutritional value of plants, plant parts, fruits and/or flowers by increasing the normal levels of polyphenolic compounds, especially flavonoids, present therein. Additionally, the present invention is related to compositions and methods that give more resistance to plants, plant parts, fruits and/or flowers against pathogens as bacteria and fungi. Finally, the present invention is related to plants, plant parts, fruits, flowers and/or propagating material treated with the compositions described in the present document.

专利号:EP-2163619-B1
优先权日:2007-06-20
标 题 :Rose containing flavone and malvidin, and method for production thereof
发明人：TANAKA YOSHIKAZU; KATSUMOTO YUKIHISA; FUKUI YUKO; MIZUTANI MASAKO; NAKAMURA NORIKO; TOGAMI JUNICHI
权利人:SUNTORY HOLDINGS LTD
摘要:Disclosed is a rose characterized by containing a flavone and a malvidin by a genetic recombination technique. Typically, the flavone and the malvidin are produced by the expression of a flavone synthesis enzyme gene and the expression of a flavonoid 3',5'-hydroxylase gene originated from pansy (Viola x wittrockiana) and an anthocyanin methyltransferase gene, respectively, all introduced into the rose. The flavone synthesis enzyme gene may be one originated from a plant belonging to the family Scrophulariaceae, such as one originated from common snapdragon (Scrophulariaceae, Antirrhinum majus) and one originated from torenia (Scrophulariaceae, Torenia hybrida). The flavonoid 3',5'-hydroxylase gene may be one originated from pansy (Viola x wittrockiana). The anthocyanin methyltransferase gene may be one originated from torenia (Scrophulariaceae, Torenia hybrida).

专利号:US-5699479-A
优先权日:1995-02-06
标 题:Tonality for perceptual audio compression based on loudness uncertainty
发明人：ALLEN JONATHAN BRANDON; DORWARD SEAN MATTHEW; JOHNSTON JAMES DAVID; SYDORENKO MARK R
权利人:LUCENT TECHNOLOGIES INC
摘要:A new technique for the determination of the masking effect of an audio signal is employed to provide transparent compression of an audio signal at greatly reduced bit rates. The new technique employs the results of recent research into the psycho-physics of noise masking in the human auditory system. This research suggests that noise masking is a function of the uncertainty in loudness as perceived by the brain. Measures of loudness uncertainty are employed to form noise masking thresholds for use in the compression of audio signals. These measures are employed in an illustrative subband, analysis-by-synthesis framework. In accordance with the illustrative embodiment, provisional encodings of the audio signal are performed to determine the encoding which achieves a loudness differential, between the original and coded audio signal, which is less than (but not too far below) the loudness uncertainty.