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Topic: Starch

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In the News (Thu 21 Mar 19)

Starch is the major carbohydrate reserve in plant tubers and seed endosperm where it is found as granules [330], each typically containing several million amylopectin molecules accompanied by a much larger number of smaller amylose molecules.
A significant proportion of starch in the normal diet escapes degradation in the stomach and small intestine and is labeled 'resistant starch' (for a recent review see [991]), but this portion is difficult to measure and depends on a number of factors including the form of starch and the method of cooking prior to consumption.
Starch with structure intermediate between the more crystalline resistant starch (for example, RS in staled bread) and more amorphous rapidly digestible starch (for example, in boiled potato) is slowly digestible starch [293] (for example, in boiled millet).
www.lsbu.ac.uk /water/hysta.html   (1597 words)

  Starch - Wikipedia, the free encyclopedia
Starch (in particular cornstarch) is used in cooking for thickening sauces.
When starch is used dietetically it is normally cooked or prepared with ingredients such as lemon, tomato, vinegar, hot pepper, onion or garlic to change its characteristic 'starchiness.' An example of this would be the use of ketchup or vinegar in the presentation of french fries or chips.
Clothing starch or laundry starch is a liquid that is prepared by mixing a vegetable starch in water (earlier preparations also had to be boiled), and is used in the laundering of clothes.
en.wikipedia.org /wiki/Starch   (1035 words)

 STARCH - LoveToKnow Article on STARCH   (Site not responding. Last check: )
Starch found within leaves and other green parts of plants is assimilated and transformed with great rapidity; accumulations of it are carried as starchformers, and redeposited as starch in special reservoirs or portions of plants as the period of maturity approaches.
In its other industrial relations starch is used: (1) directly, as a thickening material in calico printing, for the dressing and finishing of many textiles, for laundry purposes, adhesive paste, and powder; and (2) indirectly, for the preparation of dextrin and British gum and starch sugar.
Under one method the separation of maize starch is facilitated by steeping, swelling and softening the grain in a weak solution of caustic soda, and favorable results are also obtained by a process in which the pulp from the crushing mill is treated with water acidulated with sulphurous acid.
52.1911encyclopedia.org /S/ST/STARCH.htm   (1274 words)

 MSN Encarta - Starch
Starch is manufactured by green plants during the process of photosynthesis.
The granules of starch present in any plant have size, shape, and markings characteristic of the species of plant in which the starch is made.
Starch is almost insoluble in cold water and in alcohol, but with boiling water it gives a colloidal suspension that may form a jelly on cooling.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761554396   (411 words)

 O'Reilly Media -- Bookstore: No Starch Press
No Starch Press publishes the finest in geek entertainment — distinctive books on computing, such as bestsellers Steal This Computer Book, How Linux Works, Hacking: The Art of Exploitation, The Cult of Mac, and The Unofficial LEGO Builder's Guide, with a focus on open source/Linux, security, hacking, programming, and alternative operating systems.
No Starch Press seeks to make computing accessible to a broad audience of technophiles and novices alike, and our loyal readers appreciate our unique points of view, our straightforward presentation, and our fearless approach to the complex world of technology.
No Starch Press books have been included in the prestigious Communication Arts Design Annual and STEP inside 100 competition, and have won the Ippy Award from Independent Publisher magazine.
nostarch.oreilly.com   (656 words)

 Learning, Food Resource [http://food.oregonstate.edu/], Oregon State University, Corvallis, OR
Starch in its processed, commercial form is composed of starch grains or granules with most of the moisture removed.
Starch begins to gelatinize between 60 and 70C, the exact temperature dependent is the specific starch.
It is a starch sol until you remove it from the heat and begin to allow the amylose and some amylopectin to recrystallize, i.e.
food.oregonstate.edu /learn/starch.html   (3344 words)

 starch. The Columbia Encyclopedia, Sixth Edition. 2001-05
In green plants starch is produced by photosynthesis; it is one of the chief forms in which plants store food.
Starch obtained by animals from plants is stored in the animal body in the form of glycogen.
Starch is widely used for sizing paper and textiles, for stiffening laundered fabrics, in the manufacture of food products, and in making dextrin.
www.bartleby.com /65/st/starch.html   (317 words)

 International Starch: Production of corn starch
This energy is transported as a sugar solution to the starch storage cells, and the sugar is converted to starch in the form of tiny granules occupying most of the cell interior.
Crude starch milk from the dewatering screen ahead of the fine mill and from the first stage fibre washing is combined.
From the moist starch hopper the starch is fed by a metering screw conveyor into a flash dryer and dried in hot air.
home3.inet.tele.dk /starch/isi/starch/tm18www-corn.htm   (2451 words)

 International Starch Trading: Starch in Papermaking;
Starch was important for both sizing and coating of paper, when Gutenberg invented his printing technique in 1450.
Starch is used in papermaking from the wet end to the size press.
Native corn starch is the major size-press additive used in the U.S. Poor performance on the size-press may be caused by retrogradation - a kind of crystallisation of linear parts of the starch (amylose).
www.viscostar.dk /application/paper.htm   (706 words)

 Food Product Design: Understanding Starch Functionality
Starch molecules have one of two molecular structures: a linear structure, known as amylose; and a branched structure, known as amylopectin.
Of the starches commonly used for food, potato starch is the largest; its granules range in size from 15 to 75 microns.
The phosphorus in tuber starches, such as potato, is in the form of phosphate monoesters that occur on the starch molecule as negatively charged groups.
www.foodproductdesign.com /archive/1996/0196CS.html   (3025 words)

 Starch under the microscope   (Site not responding. Last check: )
Starch is stored in underground plant organs such as roots (cassava), tubers (arrowroot, potatoes) or corms, as well as in above-ground fruits and seeds.
Two large plant groups which contain high concentrations of starch in their seeds are cereals (amaranth, barley, buckwheat, corn, millet, oats, rice, rye, sorghum, wheat) and legumes (a great variety of beans, peas, lentils).
Starch is used by plants to store energy and is digested when the need for energy arises, e.g., when a seed germinates.
anka.livstek.lth.se:2080 /microscopy/f-starch.htm   (950 words)

 CORN REFINERS ASSOCIATION - PRODUCTS - STARCH   (Site not responding. Last check: )
Starch is one of nature's major renewable resources and a mainstay of our food and industrial economy.
Corn starches, and their cousins dextrins (a roasted starch), are used in hundreds of adhesive applications.
Special types of starches are used in the search for oil as part of the "drilling mud" which cools down superheated oil drilling bits.
www.corn.org /web/starch.htm   (237 words)

 International Starch: Starch and Glucose Glossary
Glucose syrup is a liquid starch hydrolysate of mono- di- and higher saccharides.
Starch are formed in plants as tiny granules preserved in starches modified at low temperatures.
Starch is a polymer of glucose found as a reserve in most plants.
home3.inet.tele.dk /starch/isi/starch/glosary.htm   (1682 words)

 Starch Away   (Site not responding. Last check: )
Starch digestion is resumed in the small intestine, where amylase of pancreatic origin is secreted into the duodenal contents.
Starch Away will work on the starch in the soft chews as well as the starch-laden meal that is consumed—the Phase 2™ phaseolamin does not differentiate between the two starches.
Starch Away does not work on sugar, since it is already the simplest unit the body uses for energy and is ready for absorption.
www.starchaway.com /faq.html   (2266 words)

 Starch Pathway
Starch is synthesised in specialised plastids known as amyloplasts and also in chloroplasts.
Starch is a major component of the "average" dietary intake of man and animals.
On a dry-weight basis starch is by far the major component of the edible portions of these crops, providing between 60% to 90% of the dry weight.
www.public.iastate.edu /~pkeeling/Starches.htm   (287 words)

 Starch, Food Resource [http://food.oregonstate.edu/], Oregon State University, Corvallis, OR
Nature of starch in spaghetti at different stages of processing and the degree of gelatinization at various stages of cooking was studied using the ratio of birefringent to non-birefringent as the indication of the degree of gelatinization.
Starch was extracted from Spirodela polyrrhiza (L.) Schleid, and characterized as to shape, granule size and weight distribution, amylose content and temperature of gelatinization and viscosity in relation to temperature.
Starches were studied to determine the rate of formation in corn endosperm and to study the physical and chemical properties of starch granules at different stages of maturity.
food.oregonstate.edu /starch   (11325 words)

 Starch - Iodine
Starch - Amylose - (Graphic Image in new window) shows a very small portion of an amylose chain.
Starch Test: Add Iodine-KI reagent to a solution or directly on a potato or other materials such as bread, crackers, or flour.
Starch amylopectin does not give the color, nor does cellulose, nor do disaccharides such as sucrose in sugar.
www.elmhurst.edu /~chm/vchembook/548starchiodine.html   (361 words)

 Starch   (Site not responding. Last check: )
Starch is a complex carbohydrate, a major component of cereals and some vegetables.
Corn is ground and mixed with water, after which the starch is separated from the other components of the kernel (bran, protein, and germ) and dried in large systems designed specifically for starch.
As the starch molecule is heated in the presence of water, it absorbs the water and creates a thick slurry.
www.kashrut.com /articles/starch   (1408 words)

 Carbohydrates - Starch
Natural starches are mixtures of amylose (10-20%) and amylopectin (80-90%).
Natural starches are mixtures of amylose and amylopectin.
In glycogen, the branches occur at intervals of 8-10 glucose units, while in amylopectin the branches are separated by 10-12 glucose units.
www.elmhurst.edu /~chm/vchembook/547starch.html   (392 words)

 EBL Starch Research Page>
My information is based on cereal starches; I don't know what the effects of heating on starch from other sources would be, but they may be much the same.
If starch granules are heated dry, they can maintain their morphology more-or-less unchanged, even at surprisingly high temperatures, until they are eventually pyrolysed (chemically decomposed).
If starch is heated in water it gelatinises ("melts") and loses its morphology - but the extent to which this happens depends on the moisture content.
www.siu.edu /~ebl/forum.htm   (1538 words)

 Oilfield Glossary: Term 'starch'   (Site not responding. Last check: )
Granules are insoluble in cold water, but soaking in hot water or under steam pressure ruptures their covering and the polymers hydrate into a colloidal suspension.
Derivatized starches, such as hydroxypropyl and carboxymethyl starches, are used in drill-in fluids, completion fluids and various brine systems as well as in drilling-mud systems.
The use of starch typically causes a minimal increase in viscosity while effectively controlling fluid loss.
www.glossary.oilfield.slb.com /Display.cfm?Term=starch   (231 words)

 National Starch and Chemical Company - Welcome
National Starch is a company with a culture that actively embraces and optimizes change as a necessary part
National Starch Papermaking Innovation Announces Price Increases Across North American Product Line.
The National Starch Logo is a trademark of the National Starch and Chemical Company.
rd.business.com /index.asp?epm=s.1&bdcq=Starch&bdcr=3&bdcu=http://www.nationalstarch.com/&bdct=20071202115503&bdcp=&partner=2662601&bdcs=nwuuid-2662601-B8C5BF1E-7BB1-B016-9203-FA88341C130C-ym   (91 words)

 YouTube - A pool filled with non-newtonian fluid
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High-speed Pink Cloud of corn starch in water.
Things you CAN'T do when you're NOT in a pool
www.youtube.com /watch?v=f2XQ97XHjVw   (425 words)

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