Agar detection

Strip-shaped agar is colorless, translucent or almost white to light yellow in color, with a wrinkled and slightly shiny surface. It is light, soft, and tough, not easy to break, and when completely dried, it is brittle and fragile; Powdered agar is a white or light yellow flake like powder. Agar has no odor and a light taste. Insoluble in cold water, but able to slowly absorb water, soften and swell, and absorb over 20 times more water. Easily dispersed in boiling water to form a sol, which exhibits a neutral reaction. More than 0.1%~0.6% sol can become gel at 28~42 ℃, and it will not melt below 85 ℃. Does not participate in human metabolism and has no nutritional value. This product is a mucus extracted from the cauliflower family, Gelidium amansii Lamx, or several other red algae plants, and dehydrated and dried. Soak red algae plants such as cauliflower and gracilaria in water to remove impurities, then soak and hydrolyze with sulfuric acid or acetic acid under certain conditions, and then filter, purify, and cool the hydrolysate to obtain the product. Linear agar appears as a slender strip, almost white to light yellow in color; Semitransparent, surface wrinkled, slightly glossy, light and soft in texture, not easily broken; After complete drying, it becomes brittle and fragile; No odor, light taste. Powdered agar is a fine particle or flake like powder, colorless to light yellow; Mount the film in cold water and observe under a microscope, which shows colorless irregular polygonal mucinous fragments; No odor, light taste. This product dissolves in boiling water and is insoluble in cold water, but can expand into adhesive blocks; The aqueous solution exhibits a neutral reaction

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BAIJIAN testing process:

1. Telephone communication and confirmation of requirements

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3. Mail samples and arrange testing

4. Progress tracking and result feedback

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6. If urgent or priority processing is required

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