花色素

The component and stability of anthocyanidins in petals of sixteen Freesia refracta cultivars were analyzed by the specific color reactions and UV-visible spectrum.

以小苍兰16个不同花色品种及后代为试验材料，对花瓣色素用特征显色反应和紫外-可见光谱扫描，分析其色素的成分和花色素苷的稳定性。

Grape pomace contains rich anthocyanin which is one of high quality, non-toxic and harmless natural pigments with high development potential.

葡萄酒皮渣中含有丰富的花色素苷，其色质优、无毒无害，是一种极具开发意义的天然色素之一。

Extraction method and physical-chemical properties of anthocyanin from Red Globe Grape (Vitis vinifera L.) peel were preliminarily studied.

以红地球葡萄品种为试材，研究了葡萄果皮中花色素的提取方法及色素理化性质。

T he extraction condition and the stability of natural pigment in flower of Lilium concolor were tested by using orthogonal experiment. The results showed that the pigment was extracted effectively when flower was dipped with 99.7 % of alcohol at 50℃ for 1 h.

采用正交试验 L9（33）对山丹花色素的提取条件进行了探讨，同时对其色素的稳定性进行研究，确定最佳提取条件是50 ℃，时间1 h，乙醇浓度99.7 %，其中影响的主次顺序为浓度、时间、温度。

The cyanin of Acer ginnala had low light and heat stability.It could hold the cyanin stability under low temperature and dark condition.

茶条槭的花色素苷表现出光、热稳定性差的明显特征，低温和黑暗条件能较好地保持花色素苷的稳定性。

Changes of leaf pigment content,soluble sugar content,enzyme activity and photosynthesis characters in leaf of Photinia×frasery"Red Robin"were searched of five different shading treatments(100%,80%,50%,25%,10%transmission rate).The seasonal variation of leaf color and stability of anthocyanin were studied in this paper.Purpose of the research is to master the Physiological characters during leaf color transformation of Photinia×frasery"Red Robin",and provide evidences to promote introduction cultivation and the application under different garden environment of them.

本文以2年生红叶石楠(Photinia×frasery'RedRobin)扦插苗为试材，探讨了不同遮光处理透光率分别为100%(全光照、80%、50%、25%、10%条件下叶片色素含量、可溶性糖含量、苯丙氨酸解氨酶活性、抗氧化酶活性变化及光合作用日变化，同时对其叶色的季节变化及花色素苷的稳定性进行了初步探讨，以掌握红叶石楠叶色变化的生理特征，为红叶石楠的广泛引种栽培及在不同园林环境中的应用提供科学依据。

The results showed that:1. Changes of Photosynthesis and Relative Physiological Characteristics of Photinia frasery Dress Seedlings under Different Drought in SpringAlong with the stress time extended and stress extent increased, leaf water content, photosynthetic pigment content and photosynthetic indexes of Photinia frasery Dress were inhibited in different levels, but the anthocyanin content, MDA content and membrane permeability increased distinctly.

结果表明： 1。不同程度干旱胁迫下红叶石楠叶片光合作用及相关生理特性的变化随着胁迫时间的延长和胁迫程度的加剧，红叶石楠的叶片含水量、光合色素含量以及Pn等光合基本指标都受到了更深程度的抑制，且可利用的光强范围越来越小，而花色素苷含量、MDA含量和细胞膜透性大幅增加，保护酶系统(SOD、POD、CAT)活性随着胁迫时间的延长，总体表现为先升高后降低，但在同一时期，随着胁迫程度的加剧，酶活的变化趋势有异。

According to the physiochemical properties of anthocyanin, methanol solution containing 0.1 mol/L HCl was selected as the extraction solution, then grape pomace lixiviated for 30～40 min with pH=3.0～4.0 and temperature at 60～70 ℃, and then the liquid or paste extract was prepared after a series of technical procedures including extraction, centrifugation, filtration and vacuum concentration.

本课题根据花色素苷的理化性质，选择了用0.1 mol/L 的HCl的甲醇溶液作提取剂，在pH值为3.0～4.0及60～70 ℃温度下浸提30～40 min，再经萃取、离心、过滤、减压浓缩，可得到液态或膏状提取物，并通过了分析检测；还对花色素苷在食品工业中的应用作了研究。

This shows that the increasedflower pigment contents of Purple leaf plum are related to PAL activity, but the PAL not the onlyregulatory enzyme of flower pigment composite.

PAL活性和花色素含量的变化不同步，说明干旱胁迫使紫叶李叶片花色素含量上升，与PAL活性有一定关系，但PAL不是紫叶李叶片花色素合成的唯一调节酶。

The chlorophyll, ch a and ch b content of Purple leaf plum is reduced, flower pigmentcontent is increased, flower pigment and chlorophyll value is increased under water stress, madethe color of the leaf is more obviously.

遮荫环境下，紫叶李叶片总叶绿素、叶绿素a、叶绿素b含量上升，花色素含量和花色素与叶绿素含量的比值下降，叶片出现复绿现象，不利于叶片显色。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。