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Polypeptide

Phytosterols

INCI Name: PHYTOSTEROLS
Source: Soy and pine
Molecular Formula: C29H50O
Molecular Weight: 414.71
Appearance: Fine Powder or Granule
Purity: 90%; 95%; 98%
CAS NO.: 68441-03-2

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best soy phytosterols powder-zhenyibio

Phytosterols in cosmetics can stimulate the production of collagen and help repair the damage of photo-aged skin.Phytosterols also have anti-inflammatory properties and can be used for UV protection,dermatitis treatment and even cancer prevention.

They are widely used in burn wound care-phytosterols have been found to improve healing and improve the appearance of scars.The antibacterial activity of plant phytosterols is also very important.Finally,phytosterol powder regulate the transport of cholesterol,which in turn regulates the production of sebum,which may be a good treatment option for acne and other sebum-related diseases.

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Items tested	Specifications	Results
Characters	A white or almost white,crystalline powder, Practically insoluble in water, soluble in tetrahydrofuran, sparingly soluble in ethyl acetate.	Conforms
Identification 1. Color reaction 2. Retention time	1.Positive	Conforms
Identification 1. Color reaction 2. Retention time	2.The retention time of the major peak confirms to that of the standard preparation	Conforms
Acid value （mgKOH/g）	≤1.0ml	0.4ml
Specific optical rotation	-15~-28°	-28°
Assay	β-Sitosterol ≥70%	71.48%
	Brassicasterol	1.21%
	Campesterol	12.44%
	Stigmasterol	10.01%
	Total sterols ≥95%	95.14%
Loss on drying	≤4.0%	2.2%
Total Ash	≤0.5%	Conforms
Heavy metals	≤10ppm	Conforms
Total Plate Count	Max 3,000cfu/g	Conforms
Yeast&Mold	Max 100cfu/g	Conforms
E.coil	Negative	Conforms
Salmonella	Negative	Conforms

Items tested	Specifications	Results
Characters	A white or almost white,crystalline powder, Practically insoluble in water, soluble in tetrahydrofuran, sparingly soluble in ethyl acetate.	Conforms
Identification 1. Color reaction 2. Retention time	1.Positive	Conforms
Identification 1. Color reaction 2. Retention time	2.The retention time of the major peak confirms to that of the standard preparation	Conforms
Acid value （mgKOH/g）	≤1.0ml	0.4ml
Specific optical rotation	-15~-28°	-28°
Assay	β-Sitosterol ≥70%	71.48%
	Brassicasterol	1.21%
	Campesterol	12.44%
	Stigmasterol	10.01%
	Total sterols ≥95%	95.14%
Loss on drying	≤4.0%	2.2%
Total Ash	≤0.5%	Conforms
Heavy metals	≤10ppm	Conforms
Total Plate Count	Max 3,000cfu/g	Conforms
Yeast&Mold	Max 100cfu/g	Conforms
E.coil	Negative	Conforms
Salmonella	Negative	Conforms

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