Saturday, June 5, 2010

Steviol Glycoside

The steviol glycosides are responsible for the sweet taste of the leaves of the stevia plant (Stevia rebaudiana Bertoni). These compounds range in sweetness from 40 to 300 times sweeter than sucrose. They are heat-stable, pH-stable, and do not ferment. They also do not induce a glycemic response when ingested, making them attractive as natural sweeteners to diabetics and others on carbohydrate-controlled diets.

The diterpene known as Steviol is the aglycone of stevia's sweet glycosides, which are constructed by replacing steviol's carboxyl hydrogen atom (at the bottom of the figure) with glucose to form an ester, and replacing the hydroxyl hydrogen (at the top of the figure in the infobox) with combinations of glucose and rhamnose. The two primary compounds, stevioside and rebaudioside A, use only glucose: Stevioside has two linked glucose molecules at the hydroxyl site, whereas rebaudioside A has three, with the middle glucose of the triplet connected to the central steviol structure.

In terms of weight fraction, the four major steviol glycosides found in the stevia plant tissue are:
5–10% stevioside (250–300X of sugar)
2–4% rebaudioside A — most sweet (350–450X of sugar) and least bitter
1–2% rebaudioside C
½–1% dulcoside A.

Rebaudioside B, D, and E may also be present in minute quantities; however, it is suspected that rebaudioside B is a byproduct of the isolation technique. The two majority compounds stevioside and rebaudioside, primarily responsible for the sweet taste of stevia leaves, were first isolated by two French chemists in 1931.

The source of information regarding sugar free stevia for diabetic is from:

http://en.wikipedia.org/wiki/Steviol_glycoside

Stevia side effects

Stevia got side effects ? We will see the latest study on stevia.

* Is stevia Toxic? – No. Stevia has been used in Japan since 1970 and there have been no reports of toxicity or other side effects.

* Is stevia Mutagenic? – No. The Japanese Food and Drug Safety Center has found stevia not to be mutagenic. Only one study has shown stevia to be potentially a mutagenic and this study has been criticized for errors in procedure. Scientist in Great Britain said that according to the study’s formula, distilled water is mutagenic.

* Is it a contraceptive? Two studies showed stevia to have a contraceptive effect. The first study was done in Uruguay over 30 years ago and since then no one has been able to reproduce the results. The second study was done by a graduate student in Rio de Janeiro and the results and methods have been questionable. Multiple other studies have shown that stevia has no contraceptive effect.

* Is Stevia Safe? Absolutely. Stevia has been used around the world with NO reports of stevia overdose or toxicity to humans in the past forty years.

There you have it. This latest study indicate stevia is safe for consumption. Especially for diabetic patient. Choose a sugar free life.

http://pemanis-stevia.blogspot.com

Tuesday, June 1, 2010

Stevia - sugar free. Sesuai untuk kencing manis atau diabetic

Stevia merupakan pemanis untuk kencing manis / diabetic adalah 200-400 kali ganda lebih manis daripada gula biasa, tidak memudaratkan kesihatan dan tidak mengandungi kalori. Ianya semulajadi dan dihasilkan dari pokok stevia.

Laman baru kami : http://pemanis-stevia.blogspot.com/

Sila lawati laman tersebut untuk mengetahui harga terkini

Stevia paling murah di pasaran Malaysia !!

Photobucket

Penyakit kencing manis/ diabetic adalah penyakit yang kian meningkat. Apabila seseorang mendapat penyakit kencing manis/diabetic, pelbagai pantang perlu diamalkan untuk mengurangkan kemelaratan penyakit ini.

Baru-baru ini sejenis pemanis telah ditemui iaitu pokok stevia dan ianya semulajadi / natural tanpa pengubahsuaian kandungan kimia pemanis ini. Stevia tidak mengandungi kalori dan manisnya ialah 200-400 kali ganda daripada gula biasa. Sesuai digunakan oleh pesakit kencing manis / diabetic dan pengamal diet. Stevia merupakan gula penawar kencing manis / diabetic

Stevia boleh dikatakan pemanis untuk kencing manis / diabetic kerana ia tidak memudaratkan seperti gula biasa. Selain itu ia juga boleh digunakan untuk orang yang ingin menurunkan berat badan kerana ianya tidak mempunyai kalori.


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