Rice Bran Extract
Overview
Rice bran extract is obtained from the outer layer of rice (Oryza sativa), a byproduct of rice milling. It contains bioactive compounds like gamma-oryzanol, vitamin E derivatives, and polyphenols, making it valuable for health and industrial applications. The extract is produced through solvent extraction or cold pressing, preserving its nutrient profile. Its versatility spans cosmetics, where it acts as a moisturizer and UV protector, and functional foods for its hypolipidemic effects.
Physical and Chemical Properties
Rice bran extract is typically a viscous liquid or fine powder with a characteristic nutty aroma. Its color ranges from pale yellow to dark brown, depending on processing methods. Key components include gamma-oryzanol (3–5%), a unique antioxidant blend, and tocopherols (vitamin E). The extract is stable under moderate temperatures but degrades when exposed to prolonged heat or oxygen, necessitating proper storage.
Main Applications
In cosmetics, the extract is prized for its anti-aging and skin-barrier repair properties. It’s found in serums, sunscreens, and hair care products. Pharmaceutical formulations leverage its cholesterol-lowering effects, while food industries use it to fortify oils and baked goods. Emerging research explores its potential in managing metabolic syndromes due to its anti-inflammatory properties.
Safety and Storage
Rice bran extract is non-toxic and compliant with FDA and EFSA guidelines for food and cosmetic use. However, residual solvents from extraction require monitoring. Storage in amber glass or food-grade plastic at 15–25°C prevents oxidation. Bulk buyers should request stability data and material safety sheets to ensure compliance with regional regulations.
B2B Procurement Guide
When sourcing rice bran extract, prioritize suppliers with ISO or organic certifications. Specify gamma-oryzanol concentration (typically 5–15%) and request third-party lab reports for heavy metals and pesticides. For bulk orders (100+ kg), negotiate pricing based on volume and consider COA (Certificate of Analysis) requirements. Logistics should account for temperature control for liquid forms to preserve efficacy.
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