[Latin Name] Tagetes erecta L

[Plant Source]fromChinal

[Specifications] 5%~90%

[Appearance] Orange Yellow fine powder

Plant Part Used: Flower

[Particle size] 80 Mesh

[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

Introduction

Marigold flower belongs to compositae family and tagetes erecta. It is an annual herb and widely planted in Heilungkiang, Jilin, Inner Mongolia, Shanxi, Yunnan , etc.The marigold we used comes from Yunnan province. Based on the local situation of special soil environment and lighting condition , the local marigold have characteristics like growing fast,long flowering period ,high productive capacity and adequate quality.Thus, the steady supply of raw materials, high yield and reduction of cost can be guaranteed.

Products function

1).Protect skin from the harmful solar ray.

2).Protect skin through reducing the risk of macular degenration.

3).Prevent cardiopathy and cancer and resist arteriosclerosis.

4).Prevent retina against oxidation when absorb light

5).Anti-cancer and preventing diffuse of cancer cell

6).Promote eyes’ health

Usage

(1)Applied in pharmaceutical health care product field, it is mainly used in vision care products to alleviate visual fatigue, prevent macular degeneration,and protect the health of eye

(2)Applied in cosmetics, it is mainly used to whitening, anti-wrinkle and UV protection.

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Iodine and Starch Experiment | Iodine Experiment | Starch Experiment | Science experiments for kids

Simple and easy experiment to demonstrate the iodine with starch reaction!

For this test you will need:
• Two test tubes
• Soluble starch powder
• Iodine solution
• Water
• Dropper
Procedure:
• Put some starch powder into a test tube and fill the test tube with water.
• Mix the starch in the test tube well until the starch dissolves in the water.
• Fill the other test tube with normal water.
• Place both the test tubes in a test tube stand.
• Using a dropper take iodine solution.
• Put some drops in each test tube.
• Observe that the test tube with starch solution turns to purple black color.
• The other test tube with normal water retains the color of iodine i.e orange or yellow.
Explanation:
Starch is a mixture of amylose and amylopectin, which are different forms of glucose/starch.
Amylose in starch is responsible for the formation of a deep blue black color.
Amylase is long polymer chains of glucose units connected by an alpha acetal linkage and looks much like a coiled spring.
However iodine is a potassium iodide reagent and it is not very soluble in water.
So, iodine is prepared by dissolving it in water in an aqueous solution of potassium iodide. This results in a linear tri-iodide ion (I3−) complex in iodine which is soluble.
This tri-iodide ion (I3−) slips into the coil of the starch causing an intense or deep blue-black color.