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starch期刊

发布时间: 2021-03-25 14:16:41

㈠ Taylor&Francis怎么下载文献pdf有谁知道账号吗或帮忙下载下

文件较大,耐心下载,望及时采纳答案!

作者:

Yu X, Yu H, Zhang J, et al.

文题:

Comparison of Endosperm Starch Granule Development and Physicochemical Properties of Starches from Waxy and Non-waxy Wheat

期刊名:

International Journal of Food Properties,

期刊年份:

2015

㈡ 淀粉阻断剂到底有用吗它是抑制淀粉酶的活性,持续90分钟,那淀粉就不能被切割成小分子,但是淀粉不被

淀粉阻断剂是从白芸豆中采用特殊生化技术提取出的一种天然淀粉阻断剂,可以有效阻断淀粉的消化吸收,减少能量摄入,达到最佳的控制体重的效果
淀粉是大分子(多糖) 无法进入血液
所以要消化为单糖(葡萄糖) 才能吸收呢
1淀粉阻断剂

淀粉阻断剂(Starch Blocker)[1]是美国法尔玛化学实验室(Pharmachem Laboratories)
美国GRAS认证
美国GRAS认证
采用特殊生化技术和超临界技术从北美白芸豆中箤取得到的100%天然成分,该淀粉阻断剂能在人体内的α-淀粉酶(α-amylase)将摄入的淀粉转化为葡萄糖之前,抑制其活性,从而有效阻断肌体吸收来自淀粉类食物所产生的热量。和一般白芸豆提取物相比,如国产白芸豆提取物及一般的提取工艺的白芸豆提取物,其功效性更强。
2淀粉阻断剂的原料

淀粉阻断剂是从北美白芸豆中提取的天然成分,不含任何对人体有害的药物成
全球专业成就大奖
全球专业成就大奖
份(如某些神经中枢抑制剂等),可预防并改善因摄取过多脂肪所造成的肥胖,安全、可靠,对人体无任何副作用,是一种有效控制碳水化合物热量的工具。
3淀粉阻断剂的特点

1.有效阻断淀粉酶(α-amylase) 对淀粉的分解,
美国FDA认证
美国FDA认证
减少脂肪囤积
2.世界上第一个通过临床验证的淀粉阻断剂
3.不作用于人体器官,无任何副作用
4.通过美国GRAS安全性认证,及美国FDA健康声称许可
5.通过29个独立的临床报告, 充分证实其安全性和功效性
4淀粉阻断剂的原理

人体摄取淀粉或糖之后,体内胰岛素开始分泌,让细胞吸收转换成能量,当糖分过多让细胞没办法吸收时,多出来的部份就会转化成脂肪。淀粉阻断剂则能调整体内血糖值,降低血中甘油酸三酯。让您在减肥的同时保持身体健康。
5淀粉阻断剂的功效

淀粉阻断剂会与肠道中的α-淀粉酶(α-amylase)结合,使α-淀粉酶无法切断淀粉
全球专业期刊报道
全球专业期刊报道
,大部分的淀粉会以完整的分子形态通过消化系统,排出体外,不释放任何热量。能起到瘦身减肥,分解燃烧脂肪,抑制脂肪吸收;预防成人病,如降血糖,降血脂,降血压;
免疫赋活,强化免疫,抑制癌症等功效。餐前吃一份淀粉阻断剂有效阻断淀粉热量,延缓餐后血糖水平上升,降低食物的GI值,有效减少腰围等脂肪组织。
临床实验检测结果显示,其可显著减少体重、体脂肪率、体脂肪量、BMI及腰围。淀粉阻断剂能有效减少人体脂肪、血液中甘油三酯含量,并能明显地减小腰围(↓3.44%)、臀围(↓1.39%)、大腿围(↓1.44%),而对肌肉组织没有任何影响。与未食用淀粉阻断剂的受试者的血糖水平相比,餐前食用淀粉阻断剂1.5克后,受试者的血糖上升的比例降低66%,这表明对受试着的血糖控制方面具有较好的临床意义。
6淀粉阻断剂的安全性

它是世界上第一个通过临床验证的淀粉阻断剂,不直接作用于人体器官,无任何副
泰国军方减肥项目指定素材
泰国军方减肥项目指定素材
作用。通过了美国FDA(食品药品监督管理局)和美国GRAS(一般认为安全)的认证,是唯一可以在包装上明示“可以减少膳食中淀粉的消化和吸收”、“配合合理的饮食和运动,可以帮助控制体重”等功能的食品。且通过29个独立的临床报告,充分证实其安全性和功效性。该项成果在全球收获了众多专业大奖,在世界各地受到权威和专业人士的一致认可和好评,同时,该项成果在2006年被用于泰国军方专用的指定减肥素材。
淀粉阻断剂与一般“白芸豆提取物”的区别
目前,市场上有很多价格极低的“白芸豆粉”销售,如有的网上店铺销售的白芸豆粉每100g只卖几十元。应该说,这种“白芸豆粉”与淀粉阻断剂完全是两回事,是不具有淀粉阻断功能的。
首先,淀粉阻断剂是从北美白芸豆中,通过特殊生物技术提取的产品,它的主要功效来源于其独特的提取技术,并且需要用极其严格的检验方法保证其提取物的阻α-淀粉酶(α-amylase)的活性。而那些价格很低的所谓“白芸豆粉”或是国产的白芸豆提取物就是将我们在超市里可以买到的大白芸豆经过粉碎加工后的产品,没有任何活性和阻断淀粉的功能的。而未经煮熟的白芸豆具有一定的毒性,其中毒机理及表现与食用未经煮熟的扁豆相同,是非常危险的!
7淀粉阻断剂的市场应用

淀粉阻断剂早在二十一世纪初在欧美等国家已经非常普及。由
奥罗黎淀粉阻断剂
奥罗黎淀粉阻断剂
于欧美人的主食以面粉为主,其中含有高含量的淀粉,所以在人们的日常生活中,淀粉阻断剂常常会以辅助的形式被加入到各种食品中,从而降低人们身体对淀粉的吸收率。
近年来,亚洲市场也开始渐渐引入淀粉阻断剂的概念,成为目前市场上新一代体重管理的最有效和潮流的方法之一。2012年法国奥罗黎将这一产品正式带入亚太地区。
2012年,奥罗黎healthy food 食物阻断剂系列推出了淀粉阻断剂、油分阻断剂和糖分阻断剂三个产品。正式将这个风靡全球的健康管理体重的方法和概念带到了中国。奥罗黎healthy food系列以“健康减肥、享瘦无限”和“曼妙身材吃出来”的减肥纤体理念为所有爱美人士带来最健康的减肥方式,由于所有产品都为植物萃取,所以所有的产品都是非常健康且无副作用。也因为奥罗黎对于品牌及产品质量的重视,奥罗黎healthy food系列在国内尚未上市就引起了极大的关注和好评。
8奥罗黎淀粉阻断剂食用方法

食用主食(如披萨、米饭、意面、通心粉、面包、土豆、面食等)前服用,
糖尿病协会专项产品
糖尿病协会专项产品
每正餐前2粒,可根据餐量和摄入淀粉量而增加,100%天然萃取,安全保障,无食用上限。
建议餐前15分钟效果最佳,可阻断70%淀粉吸收,如无法达到,餐中补服亦可达到40%以上效果。
同时此款产品因其具有阻断淀粉转化的功效,能有效缓解餐后血糖升高,适用于糖尿病人餐后血糖控制。是偏爱主食的糖尿病人的最佳伴侣。

㈢ 100分求关于酒的英文文献

查到两篇,如果需要发邮件到我邮箱,[email protected],我把版全文发给你权

[1] Kitagawa, S., et al., Effect of soy peptide on brewing beer. Journal of Bioscience and Bioengineering, 2008. 105(4): p. 360-366.
[2] Wolf-Hall, C., Mold and mycotoxin problems encountered ring malting and brewing. International Journal of Food Microbiology, 2007. 119(1-2): p. 89-94.

㈣ 化学方面的论文,有中英文对照的,1000字左右的就行

一、溶胶是怎样的概念
胶体从外观上看貌似均匀,与溶液没什么差异,因此胶体常称为溶胶。溶胶与胶体是同一个概念。

二、对淀粉、蛋白质等高分子溶于水形成的分散系,为什么有时称其为溶液,有时又称其为胶体
教材中是按分散质微粒直径的大小来给分散系分类的。淀粉、蛋白质等高分子溶于水形成的分散系可称为胶体。但是判断一种分散系是属于胶体还是溶液,单从分散质微粒直径的大小这一方面来考察,其结论是不全面的,甚至是错误的。正确判断一种分散系是溶液还是胶体,还要看分散质微粒的结构。如果分散质微粒的结构简单,比如是单个的分子或较小聚合度的分子或离子,那么这样的分散系应称为溶液。由于淀粉、蛋白质溶于水后都是以单个分子的形式分散在水中的,因此,尽管这些高分子很大,这些分散系仍应称为溶液。只是因为高分子的大小与胶粒相仿,高分子溶液才具有胶体的一些特性,如扩散慢、不通过半透膜、有丁达尔现象等。化学上常把Fe(OH)3,AgI等难溶于水的物质形成的胶体称为憎液胶体,简称溶胶;而把淀粉、蛋白质等易溶于水的物质形成的分散系称为亲液胶体,更多地是称为高分子溶液。

三、溶液是均一的,胶体也均一吗
憎液溶胶的分散质微粒是由很大数目的分子构成,因此是不均一的;高分子溶液中的分散质微粒是单个的分子,因此是均一的。

四、胶体能在较长时间内稳定存在的原因是什么
憎液溶胶的胶粒带有相同的电荷,由于同性电荷的排斥作用而使憎液胶体可以稳定存在。淀粉、蛋白质等高分子中含有多个极性基团(如—COOH,—OH,—NH2等),可以与水高度溶剂化(高分子表面形成水膜),因此也可较长时间稳定存在。很明显,这两类胶体稳定存在的原因是不同的。

五、溶液中的溶质微粒也作布朗运动吗
胶体微粒在各个方向上都受到分散剂分子的撞击,由于这些作用力不同,所以胶体微粒作布朗运动。溶液中的溶质微粒和分散剂分子大小相仿,因此溶质微粒的运动状况与胶体的胶粒运动状况是有差别的。由于胶体的丁达尔现象,用超显微镜才可以观察到胶粒的布朗运动。溶液无丁达尔现象,因此用超显微镜观察不到溶质微粒的运动状况。

六、凝聚与盐析有何差别
凝聚是憎液(水)胶体的性质,胶体的凝聚过程就是胶粒聚集成较大颗粒的过程。由于憎液(水)胶体的分散质都难溶于水,因此,再采用一般的溶解方法用水来溶解胶体的凝聚物是不可能的,也就是说,胶体的凝聚是不可逆的。盐析实际上就是加入电解质使分散质溶解度减小而使其析出的过程。盐析不是憎液胶体的性质,它是高分子溶液或普通溶液的性质,能发生盐析的分散质都是易溶的,如淀粉溶液、蛋白七、蔗糖溶于水形成的分散系是溶液,为什么在生物课的渗透实验中,蔗糖分子却不能通过半透膜
不同的半透膜,如羊皮纸、动物膀胱膜、玻璃纸等,其细孔的直径是不同的,也就是说,不同的半透膜,其通透性是不一样的。显然,笼统地讲半透膜能使离子或分子通过,而不能使胶体微粒通过是不恰当的。

八、憎液胶体与高分子溶液在性质上有何异同
憎液胶体全面地表现出胶体的特性,高分子溶液则不然。这两种分散系中的分散质微粒都作布朗运动,都有丁达尔现象;憎液胶体有电泳现象,淀粉溶液无电泳现象,而蛋白质溶液则较为复杂;使憎液胶体凝聚的方法有:加入电解质、给胶体加热、加入带相反电荷的胶体,使高分子溶液中的分散质沉淀,主要是破坏高子分与分散剂间的相互作用,如加入大量的电解质也能使淀粉、蛋白质沉淀,这一现象称为盐析,它是可逆的。

九、有没有溶液能产生类似于胶体的电泳现象
由于溶液是均一的,不存在“界面”,因此,给溶液通电不会产生界面移动现象(即一极液面高,另一极液面低),但是有些溶液通电后却可以产生一极溶液颜色加深,另一极溶液颜色变浅的现象。比如,给紫红色KMnO4溶液通电一段时间后,阳极附近溶液的颜色就会变深,阴极附近溶液的颜色就会变浅。这是由于通电后,紫红色的MnO4-向阳极移动,但却不会在阳极放电(MnO4-远比OH-难放电)的缘故。CuSO4溶液就不会产生类似的现象,因为Cu2+会在阴极放电。

十、Fe(OH)3胶体长时间电泳或电压增大,将发生怎样的现象
如果Fe(OH)3胶体长时间电泳或将电泳的电压显著增大,都会在阴极出现凝聚现象,因为不论是长时间电泳还是电压显著增大,都会使阴极附近积聚很多的Fe(OH)3胶粒,大量胶粒的聚集必然会出现凝聚现象。如果电泳电压特别大,还会出现电解水的现象。

质溶液、肥皂的甘油溶液,由于分散质都是易溶的,所以盐析是可逆的。
First, what is the concept of sol
Judging from the appearance of seemingly homogeneous gel, with no difference in the solution, so often referred to as sol-gel. Sol and gel is the same concept.

2, starch, protein and other water-soluble polymer dispersed system formed, why the solution is sometimes called, sometimes also called it as colloidal
Quality of teaching is dispersed particle diameter according to the size of a decentralized system classification. Starch, protein and other polymer dissolved in water to form colloidal dispersion system can be called. But the determination of a colloidal dispersion system or solution are, just from the dispersed particle diameter size of the mass to examine this aspect, the conclusion is incomplete, even wrong. Correct determination of a solution or colloidal dispersion system is, depends on the structure of particle dispersion quality. If the quality of particle dispersion structure as simple as a single molecule or smaller degree of polymerization of the molecules or ions, then it should be called the solution of the decentralized system. As the starch, protein is dissolved in water to form a single molecule dispersed in water, so, even though these polymers large distributed systems should still be called the solution of these. Only because of the size of polymer particles similar, only with the gel polymer solution of some features, such as the proliferation of slow, not through the semipermeable membrane, with Tyndall phenomena. Chemistry often to Fe (OH) 3, AgI and other substances insoluble in water, the formation of colloidal liquid gel called monks, called sol; while the starch, protein and other substances soluble in water, the formation of liquid disperse system as pro- colloid, more is known as the polymer solution.

Third, the solution is homogeneous, uniform gel also do
Hate liquid sol particle dispersion quality by a large number of molecules, it is uneven one; polymer solution, the dispersion of particles is a single molecular mass, and therefore uniform.

4, colloid stability can exist over an extended period because of what
Hate liquid sol particles with the same charge, e to charge repulsion Ershi homosexual hate colloidal solution can exist. Starch, protein and other polymers containing multiple polar groups (such as-COOH,-OH,-NH2, etc.), can be highly solvent and water (molecular water film formed on the surface), so there can be a long time stability . Obviously, these two types of colloidal stability of the reason there are different.

5, solution for Brownian motion of solute particles also do
Colloidal particles in all directions are subject to the impact dispersant molecules, because these forces because of their different colloidal particles as Brownian motion. Solution of solute particles and dispersant molecules are similar in size, so the movement of solute particles and colloidal particles movement situation is different. As the colloidal Tyndall phenomenon, with a super microscope can observe particles of the Brownian motion. Solution without Tyndall phenomenon, not so ultra-microscope, the movement of the solute particles.

6, the difference between condensation and salt
Cohesion is hate liquid (the water) colloidal nature of the condensation process of colloidal particles to larger particles that process. As the monks liquid (water) quality is immune colloidal dispersion of water-soluble, therefore, re-dissolution method commonly used in water to dissolve colloidal aggregates is impossible, that is, the concentration of colloid is not reversible. Electrolyte salt is actually added to its decentralized nature and the solubility decreased precipitation process. Liquid colloidal salt is not the nature of hate, it is common solution polymer solution or the nature of the dispersion of salt can occur are soluble nature, such as starch solution, protein VII, sugar dissolved in water to form the dispersion system is a solution Why infiltration in biology class experiment, but can not be semi-permeable membrane sucrose molecule
Different semi-permeable membrane such as parchment, animal bladder film, cellophane, its pore diameter is different, that is, different semi-permeable membranes, the permeability is not the same. Obviously, generally speaking semi-permeable membrane allows ions or molecules to pass through, without giving colloidal particles through is not appropriate.

8 and hate liquid colloid and polymer solution of the similarities in the nature of
Comprehensive demonstration of monks colloidal solution colloidal properties of polymer solution is not. This decentralized system of two particles in the dispersion quality are as Brownian motion, there Tyndall phenomenon; hate liquid gel with electrophoresis, starch solution without electrophoresis, the protein solution is more complicated; to hate liquid colloid aggregation methods are: adding electrolyte to gel heating, by adding gel with the opposite charge, so that the dispersion of polymer solution quality of precipitation, mainly sub-divided and the destruction of high interaction between dispersant, such as adding a large number of electrolyte also make starch, protein precipitation This phenomenon is known as salting, it is reversible.

9, there is no solution to proce phenomena similar to gel electrophoresis
As the solution is homogeneous, there is no "interface", and therefore to the solution of power does not proce the phenomenon of interface movement (ie a very high surface, another extremely low liquid level), but after powering some of the solution but the solution can generate a very color deepened, and the other pole solution faded color phenomenon. For example, purple KMnO4 solution to power after a period of time, the color of the solution near the anode will become darker in color of the solution near the cathode will be lighter. This is because the power, the purple MnO4-move to the anode, but not in the anode discharge (MnO4-OH-hard than the discharge) of the reason. CuSO4 solution will not proce a similar phenomenon, because Cu2 + in the cathode discharge.

10, Fe (OH) 3 gel electrophoresis time or voltage increases, the phenomenon will happen to
If Fe (OH) 3 gel electrophoresis or electrophoresis time the voltage was increased significantly and there will be condensation phenomena in the cathode, because whether or voltage electrophoresis time was significantly larger accumulation near the cathode will cause a lot of Fe (OH) 3 particles, the aggregation of a large number of particles bound to the phenomenon of condensation. Particularly if the electrophoresis voltage, electrolysis of water is still there.

Quality solution, glycerin soap solution, e to dispersion quality are soluble, so salt is reversible.

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