Rosemary Oleoresin

Product Name: Rosemary Oleoresin

Botanical Name: Rosmarinus officinalis

Extraction Method: Solvent extraction (commonly with ethanol or hexane)

Appearance: Dark brown to reddish-brown viscous liquid

Odor: Strong, fresh, herbaceous, slightly woody

Taste: Bitter, herbal

Chemical and Physical Properties

• Specific Gravity (at 25°C): 0.90 – 0.94
• Refractive Index (at 25°C): 1.460 – 1.470
• Flash Point: ≥ 100°C
• Viscosity: Medium to high, depending on concentration and extraction method
• Moisture Content: ≤ 3%
• Color: Dark brown to reddish-brown
• pH: 4.5 – 6.0 (depending on the concentration)

Active Compounds

• Rosmarinic Acid: 10% – 30% (depending on extraction)
• Carnosic Acid: 5% – 10%
• Essential Oils: Cineole (eucalyptol), camphor, borneol, and alpha-pinene
• Flavonoids: Includes compounds such as luteolin and apigenin, contributing to antioxidant properties

Quality Parameters

• Purity: ≥ 90% (based on rosemary extract content)

Heavy Metals:

• Lead (Pb): ≤ 5 ppm
• Arsenic (As): ≤ 2 ppm
• Cadmium (Cd): ≤ 1 ppm
• Mercury (Hg): ≤ 0.1 ppm

Microbial Limits:

• Total Plate Count: ≤ 1,000 cfu/g
• Yeast & Mold: ≤ 100 cfu/g
• E. Coli: Negative
• Salmonella: Negative

Solubility: Soluble in ethanol, oils, and organic solvents; insoluble in water

Shelf Life: 1-2 years from the manufacturing date when stored in optimal conditions.

Applications

• Food Industry: Used as a natural antioxidant, flavor enhancer, and preservative in food products such as sauces, meats, snacks, and beverages.
• Cosmetic Industry: Included in skincare products for its anti-aging, antimicrobial, and antioxidant properties. It’s often found in anti-acne, hair care, and anti-wrinkle formulations.
• Pharmaceutical Industry: Used in supplements and topical creams for its anti-inflammatory, antioxidant, and circulation-boosting properties.
• Aromatherapy: Rosemary Oleoresin is popular in aromatherapy for its energizing and stimulating effects on mental clarity and focus.