[Latin Name] Glycine max(L.) Mere

[Specification] 90%; 95%

[Appearance] White powder

[Melting point] 134-142℃

[Particle size] 80Mesh

[Loss on drying] ≤2.0%

[Heavy Metal] ≤10PPM

[Storage] Store in cool & dry area, keep away from the direct light and heat.

[Shelf life] 24 Months

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

[Net weight] 25kgs/drum

[What is Phytosterol?]

Phytosterols are compounds found in plants that resemble cholesterol. The National Institutes of Heath report that there are over 200 different phytosterols, and the highest concentrations of phytosterols are found naturally in vegetable oils, beans and nuts. Their benefits are so recognized that foods are being fortified with phytosterols. At the supermarket, you may see orange juice or margarine advertising phytosterol contents. After reviewing the health benefits, you may want to add phytosterol-rich foods to your diet.

[Benefits]

Cholesterol-Lowering Benefits

The most well-known, and scientifically proven, benefit of phytosterols is their ability to help lower cholesterol. A phytosterol is a plant compound that is similar to cholesterol. A study in the 2002 issue of “Annual Review of Nutrition” explains that phytosterols actually compete for absorption with cholesterol in the digestive tract. While they prevent the absorption of regular dietary cholesterol, they themselves are not easily absorbed, which leads to a total lower cholesterol level. The cholesterol-lowering benefit does not end with a good number on your blood work report. Having lower cholesterol leads to other benefits, such as a reduced risk for heart disease, stroke and heart attacks.

Cancer Protection Benefits

Phytosterols have also been found to help protect against the development of cancer. The July 2009 issue of the” European Journal of Clinical Nutrition” offers encouraging news in the fight against cancer. Researchers at the University of Manitoba in Canada report that there is evidence that phytosterols help prevent ovarian, breast, stomach and lung cancer. Phytosterols do this by preventing the production of cancer cells, stopping the growth and spread of cells that are already in existence and actually encouraging the death of cancer cells. Their high anti-oxidant levels are believed to be one way phytosterols help fight cancer. An anti-oxidant is a compound that fights free radical damage, which is negative effects on the body produced by cells that are unhealthy.

Skin Protection Benefits

A lesser known benefit of phytosterols involves skin care. One of the contributing factors in the aging of the skin is the breakdown and loss of collagen — the main component in connective skin tissue — and sun exposure is a major contributor to the problem. As the body ages, it is not able to produce collagen as it once did. The German medical journal “Der Hautarzt” reports a study in which various topical preparations were tested on skin for 10 days. The topical treatment that showed anti-aging benefits to the skin was the one that contained phytosterols and other natural fats. It is reported that phytosterols not only stopped the slow-down of collagen production that can be caused by the sun, it actually encouraged new collagen production.

The Vietnam TVC Archives

Stevia grows best in upland areas in sub-tropical climate. In other places it can be grown as an annual. The plant prefers a lightly textured, well-drained soil to which organic matter has been added. It needs ample water so that the soil is consistently moist, but not wet. In hot, sunny climates it will do best in semi-shade. Propagation is from seed sown in spring, but germination rates can be low-expect half the seeds sown not to germinate. Plant seedlings out once all danger of frost is over. Leaves are best harvested just before flowering. The plants will also grow from cuttings,which are best taken in late winter.The concentration of stevioside in the leaves of Stevia increasing when the plants are grown under long day condition.While, cultivating stevia on a large scale, it can be grown in well-drained red soil and sandy loam soil. The soil should be in the pH range of 6.5-7.5. Saline soils should be avoided to cultivate this plant.

Stevia can be successfully cultivated all around the year all over India expect theareas, which receive snowfall, or temperatures go below 5 degree Celsius in winter.The summer temperatures actually do not affect this plant if the high summer temperatures have already been factored in the cultivation practices.Since seed germination rate is very poor,it is propagated vegetative. Though stem cuttings are used for vegetative tissue culture plants have proven to be the best planting material for Stevia. Tissue culture plants of Stevia are genetically pure, free from pathogens and haveexcellent vigor. The tissue culture plants can be planted throughout the year,expect during peak summer. An ideal planting density is 40,000 plants per acre with spacing of 25×40 cm in a raised bed system. The soil can be enriched with abasal dressing of 25 tons of well rotten farmyard manure/hectare

Soil Type
Stevia requires very good drainage any soil that retain the moisture for very long period of time are unsuitable for Stevia cultivation and should be religiously avoided.Red soil and sandy loam with a 6-7 pH are best for the cultivation of Stevia.

Raised bed preparation
Forming raised beds is the most economical way to grow Stevia. The raised bed should be of 15 cm in height and 60 cm in width. The distance between each plant 23 cm. This would give a plant population of around 40,000 per acre.

Planting Material
There are basically two options for multiplication. The first is the tissue culture and second the stem cutting. Tissue culture is the best option but many farmers are tempted to try the stem cutting method for multiplication. As per practical experience, stem cutting is sometimes more expensive to produce than the tissue culture since the success rate of the stem cuttings establishment is very low, it takes minimum of 25 weeks for the stem cutting to develop in proper feeding roots for transplantation (younger stem cuttings transplants have shown more than 50% mortality in first few weeks of transplants in main field).

Harvesting
Another important aspect of harvesting is the timing of harvest. It should be noted that at no point of time plants should be allowed to flower since after flowering the Stevioside percentage goes down rapidly and leaves are rendered unmarketable. Leaves are harvested by plucking in a small quantity, or the entire plant with the side branches is cut leaving 10 to 15 cm from the base.The first harvesting can be done four to five months after planting. Subsequent harvesting can be done every three months, for five consecutive years. The sweetener in the leaf is maximum till the plant flowers. Just before flowering, the plant should be cut completely leaving 10 cm from the ground. The new flush of leaves will sprout from here. The new plant will be ready for harvest again in three months. The plant yields around 3000 kg of dried leaves from an acre of plantation every year. Harvesting should be done as late as possible, since cool autumn temperatures and shorter days tend to intensify the sweetness of the plants as they evolve into a reproductive state.

Unlocking the sweetness in your harvest
Once all leaves have been harvested it’s required to dry them. This can be
accomplished on a net. The drying process is not one that requires excessive heat;more important is good air circulation. On a moderately warm fall day, stevia crop can be quick dried in the full sun in about 12 hours. (Drying times longer than that will lower the stevioside content of the final product.)
Crushing the dried leaves is the final step in releasing stevia’s sweetening power. The
dried leaves are powdered, sieved and the fine powder is stored in containers. This can be done either by hand or, for greater effect, in a coffee grinder or in a special blender for herbs.

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