[Latin Name]  Citrus aurantium L.

[Specification] Synephrine 4.0%–80%

[Appearance] Yellow brown powder

Plant Part Used: Fruit

[Particle size] 80Mesh

[Loss on drying] ≤5.0%

[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 Citrus Aurantium]

Citrus aurantium L, belonging to the family Rutaceae, is widely distributed in China. Zhishi, the Chinese traditional name for Citrus aurantium, has long been a folk medicine in traditional Chinese medicine (TCMto improve indigestion and help stimulate the Qi (energy force).

[Function]

1. Have the function of antioxidant, anti-inflammatory, hypolipidemic, vasoprotective and anticarcinogenic and cholesterol lowering actions.

2. Have the function of inhibiting following enzymes: Phospholipase A2, lipoxygenase, HMG-CoA reductase and cyclo-oxygenase.

3. Have the function of improving the health of capillaries by reducing the capillary permeability.

4. Have the function of reducing hay fever and other allergic conditions by inhibiting the release of histamine from mast cells. The possible activity of hesperidin could be explained by the inhibition of polyamine synthesis. (bitter orange extract)

About our stevia seeds:
- They are fresh and fertile — the flowers were cross pollinated by native insects.
- The stevia seeds live for 8-12 weeks at warm temperature. 5-6 months at 4 C in refrigerators.
- We ship seeds that are no older than 40 days after collection.
- More resistant to lack of water. Industrial varieties, irrigation systems are mandatory, highest cotization in the market because of the high content of Rebadioside A (better taste and sweeter than Stevioside)

Clean stevia seeds means the debris. They are more expensive than the raw seeds, not only because of the labour and equipment costs involved, but also because of the ratio of raw stevia seeds to clean stevia seeds is 1:4. Every 4 kilos of raw stevia seeds make 1 kilo of clean viable stevia seeds. Germination rate is 45% — 50% if properly planted. Emergence rate is 80%.

Raw Stevia Seeds
These seeds come directly from the farm with feathery attachment still on. Our stevia seeds are fresh, untreated and free of any harsh chemicals that can dramatically reduce germination rates. Our stock is frequently rotating, no seed will ever be more than a few months old.

Getting Started
Stevia rebaudiana seeds are rarely available because of production problems and poor germination, so plants are generally used instead. Plants are available from several mail order sources. Be sure you are getting Stevia rebaudiana (Stevia is the genus and rebaudiana is the species) since this is the only sweet variety. Stevia stems are brittle, but nurseries have developed packing methods to protect them in transit. Arrange for plants to arrive soon after your last frost date. Later on, very high temperatures may stress transplants. Transfer plants to the garden as soon as possible after arrival, making sure they don’t dry out in the meantime.

In garden beds, space plants 10 to 12 inches apart in the row, with two rows per bed. Stagger rows so that plants end up in a zigzag pattern. Use a trowel to dig a hole, then pour in some water and set the plants a bit deeper than they were in the pot, so the root ball is covered by a thin layer of garden soil. After back-filling around the roots, water again to settle the soil. If the weather is hot and sunny at planting time, it’s a good idea to place a thin mulch around the plants to reduce moisture loss. Cool night temperatures will halt plant growth. For early plantings or areas with cool summers, hotcaps or row covers will allow faster growth and offer protection from late frosts. Don’t let the plants overheat on hot days, however.

If you are fortunate enough to obtain high-quality Stevia seeds, they are easily germinated indoors under lights. Seedlings grow slowly, so allow 7 to 8 weeks from seed to transplanting.

Plant Care
In general, Stevia should be treated as a vegetable crop. When hot weather sets in, usually a month after planting, beds should be mulched 3 to 6 inches deep with organic residue such as grass clippings, chopped leaves, straw, hay, or compost. This will protect the shallow feeder roots and hold in moisture. Plant growth is slow at first, accelerating by mid summer.

A consistent moisture supply is important for Stevia. Irrigate once or twice a week, whenever rain fails to water the plants. Sandy soils require more frequent irrigation. Trickle irrigation is ideal, ensuring consistent moisture levels without wetting leaves. A simple and effective system is the black, “weeping” soaker hose made from recycled rubber. Place a soaker hose between the two rows of plants, beneath the mulch. Attach to a garden hose and turn the water on at a trickle for a couple of hours. The system can be automated with the addition of a timer.

Side-dressing is usually not necessary, but low nitrogen or organic fertilizer may be applied in the summer as plant growth begins to accelerate. Excess nitrogen causes tender growth and reduced leaf sweetness.

Stevia may be affected by two lesion-producing fungal diseases, Septoria steviae and Sclerotinia sclerotiorum. With Sclerotinia, dark brown lesions form on stems, near the soil line, followed by wilting and eventual collapse of the plant. Stevia plants are usually full grown before diseases appear. As harvest time nears, commercial growers watch plants closely and harvest the entire crop at the first sign of disease. Meticulous weed control (by hand) permits strong growth, which helps plants resist disease. Humid, wet weather and standing water favor the development of fungal diseases, making raised beds or hills a preventative measure. Additionally, avoid wetting leaves during irrigation. Stevia is usually the last plant insects will feed on, so pests are seldom a problem outdoors. Aphids, thrips, and whiteflies can cause damage in heavily infested greenhouses.

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