天然色

The free radical scavenging properties of six Aloe species are to be investigated in some modified chemical system. The antioxidant was purified by silica column and thin layer chromatography and analyzed by HPLC. A fraction was purified from A. brevifolia Mill showed the most effective scavenging activities on 〓 and ·OH (66. 01% and 38. 98% respectively). With the analysis of IR spectrum, UV spectrum and mass spectrum, the structure of FA was identifed as 8-C-D-glucopyranosyl-2- [2-hydroxy] propyl-5-methyl-7-hydroxychromone. Its scavenging activity on free radicals is higher than that of aloe-emodin. Its antioxidant activity may be due to the phenoxyl on glucosyl chromone which can be react with free radicals and form relatively stable free radicals.

本研究利用分别产生超氧阴离子自由基和羟自由基的化学模型体系研究比较了不同品种芦荟提取物的清除活性氧自由基的抗氧化作用，进一步利用硅胶柱结合薄层层析法和反相高压液相色谱法，从短叶芦荟叶子中首次分离了具有较强自由基清除能力（超氧阴离子自由基和羟自由基清除率分别为66.01％和38.98％）的成分FA，利用红外光谱、紫外光谱和质谱等仪器分析结果推断出该活性成分的分子结构为8-C-吡喃葡萄糖-2-[2-羟基]-丙基-5-甲基-7-羟基对氧萘酮，它的自由基清除能力高于芦荟大黄素，是一种天然抗氧化剂。

The watermelons, the citrullus lamtus or the stems and leaves thereof are taken as raw materials, and the extracting process comprises the following steps: firstly, the raw materials are washed clean and broken to separate the watermelon peel from the watermelon pulp for respectively extracting juice; the two juices are mixed, and micro-filtration and ultra-filtration are carried out to remove insoluble substances and macromolecular substances; and then reverse osmosis and nano-filtration are carried out to obtain the filtrate; the pH value of the filtrate is regulated and then a macroporous strong acid cation exchange resin column is added; and then ammonia water is taken as an eluant for isocratic elution; the eluent obtained is decompressed, distilled, deaminized, discolored, condensed and crystallized to obtain a white crystalline product of the natural L-citrulline extracted from the watermelons.

本发明方法以西瓜、打瓜或者其茎叶为原料，其过程为：首先将原料清洗干净，破碎后将西瓜皮西瓜瓤分开，分别进行榨汁；所得汁液合并，经过微滤和超滤除去不容物和大分子物质；然后再经反渗透和纳滤过滤；透过液调节pH值后通入大孔型强酸性阳离子交换树脂柱；然后以氨水做洗脱剂进行等度洗脱；将洗脱液减压蒸馏脱氨，脱色，浓缩结晶，得到西瓜提取天然L-瓜氨酸白色结晶产品。

The product raw material is all imported by Western Europe, producing of cork not only don\'t drop a residue, gastight wine, not 渗 wine, and don\'t drop a natural cork color.

产品原料全部由西欧进口，生产的软木塞不仅不掉渣、不漏酒、不渗酒，而且不掉天然软木色。

Objective To investigate whether the chroma of natural teeth in cervical, middle and incisal position are consistent with Vita Classical shade guides in the same position.

目的：探讨分析天然牙与同名色系的Vita Classical比色片颈部、中部、切部的色度值是否一致，是否具有可比性。

They often said if thetie-dye commodity that they buy does not fade, they will request to return the goods, because they think the tie-dye commodity that does not fade is not made of natural plant isatis root.

我们自制的扎染品，尤为韩国和日本人喜爱，他们常说如果他们购买的扎染商品没有脱色现象，他们会要求退货，因为他们认为不褪色的扎染制品就不是天然植物板蓝根染成的。

The high vegetable, the seed introduces from Japan, becomes by seven kind of fine vegetables after the high tech hybrid, in the Zhuji mountainous area planter, spring harvests, does not have the insect pest, the pesticide pollution pure natural green agricultural product, this product uses the Japanese craft protosalt lactic fermentation the unique facture, carries on the processing souse turmeric yellow with the plant for the primary data, both maintained the salt has soaked the vegetables color, smell and tastes, and to include many kinds to the human body beneficial amino acid, this product had the natural flavor, tender, crisply in a body, ate the law to be diverse, might also make the seasoning, might also open package of edible, was the environmental protection, the health organic foods.

高菜，种子从日本引进，由七种优良蔬菜经高科技杂交而成，在诸暨市山区种植，春季收获，无虫害、农药污染的纯天然绿色农产品，本产品采用日本工艺低盐乳酸发酵的独特制法，用植物姜黄为主要原料进行加工腌制，既保持了腌渍蔬菜的色、香、味、又含有多种对人体有益的氨基酸，本产品具有天然风味，嫩、脆于一体，吃法多样，既可作佐料，又可开包食用，是环保、健康的绿色食品。

Embedded Imitation Shippo Choi Jin Yinsi wall painting is used in traditional handmade silk Qia process, using metal wire inlaid patterns to the outline, and then to synthetic natural Caisha colouring.

而＂仿景泰蓝金银丝彩嵌壁挂画＂采用的是传统手工掐丝工艺，用金属丝镶嵌出图案的轮廓，再以天然彩砂填色合成。

Thus conscience does make cowards of us all;And thus the native hue of resolutionIs sicklied o'er with the pale cast of thought,And enterprises of great pith and momentWith this regard their currents turn awry,And lose the name of action.

就这样，思想使我们都成了懦夫，果断力行的天然本色，便这么染上一层灰苍苍的忧虑的病色，而能令河山震荡的宏图大业，因这么考虑，洄流误入了歧途，便失去行动的名声。

BPA-Free: This bottle is made from Polyether Sulphone - a BPA-Free material with a natural honey-colored tint.

不含BPA，这个奶瓶用PES塑料制成，不含BPA，奶瓶是一种天然的蜂蜜色。该商品暂无评论。

Skin-the-Goat, assuming he was he, evidently with an axe to grind, was airing his grievances in a forcible-feeble philippic anent the natural resources of Ireland or something of that sort which he described in his lengthy dissertation as the richest country bar none on the face of God's earth, far and away superior to England, with coal in large quantities, six million pounds worth of pork exported every year, ten millions between butter and eggs and all the riches drained out of it by England levying taxes on the poor people that paid through the nose always and gobbling up the best meat in the market and a lot more surplus steam in the same vein.

&剥山羊皮&——假定就是那位老板——显然是别有用心。他以色厉内荏的申斥口吻，就爱尔兰的天然资源问题什么的，发泄了一通牢骚。他在一席冗长的论说中描述爱尔兰是天主的地球上无与伦比的富饶国家，远远超过英国，煤炭产量丰富，每年出口的猪肉价值六百万英镑，黄油和鸡蛋则共达一千万英镑。但是英国却向爱尔兰的穷苦人民横征暴敛，强迫他们付出惊人的巨款，并把市场上最好的肉掠夺一空。另外还说了不少诸如此类夸张的话。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。