[Latin Name] Stevia rebaudiana

[Plant Source]from China

[Specifications] 1.Stevia Extract Powder (Steviosides)

Total Steviol Glycosides 80%, 90%, 95%

2. Rebaudioside-A

Rebaudioside-A 40%, 60%, 80%, 90%, 95%, 98%

3. Stevioside 90%

One monomer in Steviol Glycosides

[Appearance] Fine white powder

Plant Part Used:Leaf

[Particle size] 80 Mesh

[Loss on drying] ≤5.0%

[Heavy Metal] ≤10PPM

[Shelf life] 24 Months

[Package] Packed in paper-drums and two plastic-bags inside.

[Net weight] 25kgs/drum

Stevia Extract

[Characteristics]

Stevia sugar features high sweetness and low calorie and its sweetness is 200 350  times of that  of cane sugar but its calorie is only 1/300 of that of cane sugar.

The component of stevia extract that gives it its sweetness is a mixture of various steviol glycosides. The components of sweetness in stevia leaves are stevioside, rebaudioside A, C, D, E and dulcoside A. Rebaudioside C, D, E and dulcoside A are small in quantity. The principal components are stevioside and rebaudioside A.

The quality of stevioside and rebaudiosideA is better than those of other components, which are commercially extracted and used in various applications.

The steviol glycosides present in stevia extract are referred to as “steviosides” or ¡°stevia extract¡±. Among these “steviosides”, the most common is Stevioside followed by RebaudiosideA. The Stevioside has a slight and pleasant herbal taste and the Rebaudioside-A has no herbal taste.

Although Rebaudioside C and dulcoside A are small in quantity in stevia extract, they are the major components giving bitter aftertaste.

[Function]

A large number of pharmaceutical tests have proved that stevia sugar has no side effects, carcinogens, and is safe for eating.

Compared with cane sugar, it can save 70% of the cost. With pure white color, pleasing taste and no peculiar smell, Stevia sugar is a new sugar source with broad perspective for development. Stevia rebaudianum sugar is the natural low hotsweet agent mostly similar to the flavor of cane sugar, approved to be used by State Ministry of Health and Ministry of Light Industry.

It is the third natural succedaneum of cane sugar and beet sugar with development and health care value, extracted from the leaves of the herbal vegetable of the composite family-stevia rebaudianum.

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https://www.ibiology.org/ibioseminars/jared-leadbetter-part-1.html

Talk Overview:
Leadbetter begins his seminar by comparing the biological diversity in the gut of the termite to the diversity found in the Sargasso Sea. The hindgut of the dampwood termite Zootermopsis nevadensis has one of the highest densities of microbes found on earth and includes bacteria, archaea and eukaryotes of all shapes and sizes. Protozoa in the termite gut breakdown the polysaccharides in wood to produce acetate; a food source for the termite. The breakdown of wood also produces H2 and CO2. Archaea in the gut convert the H2 and CO2 to methane, while bacteria compete to convert the H2 and CO2 to more acetate thus reducing methane production. Leadbetter and his colleagues were the first to identify and successfully culture acetogenic spirochetes from the termite gut. They have since found gut bacteria capable of fixing atmospheric nitrogen and producing protein. Using genetics, Leadbetter is now studying the diversity and evolution of termites and their gut bacteria.

Speaker Biography:
Jared Leadbetter was an undergraduate biology student at Goucher College when he attended a summer course on microbial diversity at the Marine Biological Laboratory in Woods Hole, Massachusetts. It was here that he first became fascinated with the amazing environment of the termite gut. Leadbetter went on to study termite gut microbes for his PhD at Michigan State University and as a post-doc at the University of Iowa.
Currently, Leadbetter is a professor of Environmental Microbiology and Environmental Science and Engineering at the California Institute of Technology. He is also co-director, with Dianne Newman, of the Marine Biological Lab’s summer course on Microbial Diversity. Using physiological, chemical and molecular genetics techniques, Leadbetter’s lab strives to understand the symbiotic relationship between termites and their diverse gut microbes. A better understanding of how termite gut microbes limit methane production and how they break down material such as lignin and cellulose may help reduce methane production by cows and improve the production of biofuels.