Item

Specification                                          

Name

Grape seed oil

Source

Grape seed

Appearance

Transparent Yellowish green                              

Index of reflection(25^oC)

1.4700-1.4750

Related density (20^oC)

0.9150-0.9250

Saponification mgKOH/g

185-205

Iodine value gI/100g

130-138

Moisture & volatile matters

0.05% max

Impurity

0.05% max

Peroxide

2.0 meqO2/kg

Unsaponifiable matters

1% max

Acid value mgKOH/g

0.05 max

Peroxide value mmol /kg

8 max

Heat (280 ^oC)

negative

Precipitation Freeze

Transparent                                                       

Residual solvents

negative

Grape seed oil is a vegetable oil pressed from the seeds of various varieties of Vitis vinifera grapes, an abundant by-product of winemaking. Grape seed oil is used for: salad dressings, marinades, deep frying, flavored oils, baking, massage oil, sunburn repair lotion, hair products, body hygiene creams, lip balm and hand creams. grape seed oil was not produced or used on a large scale until the 20th century, largely because grape seeds contain a lower percentage of oil as compared to other oil-producing seeds, nuts, or beans.

Cooking

Grape seed oil is extracted from grape seeds and has a relatively high smoke point, approximately 420 °F (216 °C), so it can be safely used to cook at high temperatures. Grape seed oil can be used for stir-fries, sautéing and fondue. In addition to its high smoking point, grape seed oil has other positive attributes in relation to cooking. It has a clean, light taste that has been described as 'nutty'. Because of its 'neutral' taste, grape seed oil is often used as an ingredient in salad dressings or as a base for infusing or flavoring with garlic, rosemary, or other herbs or spices. It is also used as an ingredient in homemade mayonnaise. One is able to use less grape seed oil for precisely the same reasons that the cosmetics industry likes it, the emollient and film-forming virtues.

Cosmetics
In all products grape seed oil is a preferred cosmetic ingredient for damaged and stressed tissues, possessing regenerative and restructuring qualities which allow a better control of skin moisturization. It can help skin retain the normal structure of epithelium cells and nerve cells via supporting the cell membranes. It is noted to be especially effective for repair of the skin around the eyes. Used as an all-over skin moisturizer, grape seed oil is known to reduce the look of stretch marks. A light, thin oil, grape seed oil leaves a glossy film over the skin when used as a carrier oil for essential oils in aromatherapy. It contains more linoleic acid than many other carrier oils. Grape seed oil is also usable as a lubricant for face shaving.

Nutritional value

Grape seeds contain antioxidants (polyphenols, including proanthocyanidins), which show some health benefits. In particular, sufficiently high amounts of resveratrol occur that it can be extracted commercially. Despite this, these antioxidants are not likely to be present in significant amounts in the cold-pressed grape seed oil itself, since proanthocyanidins are polar molecules and therefore insoluble in lipids. Antioxidants from grape skins and seeds are more concentrated in products such as grape juice and red wine.

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 Shanghai Honghao chemicals co.,Ltd   not only specialized in manufacturing and supplying food additives and food ingredients but an R&D organization and professional hi-tech enterprise studying ,manufacturing and supplying natural plant extracts for health products, health foods and cosmetics. 

Based on its advanced professional production line and 300 staffs and close relationship with China Medicine Department and Shanxi Agriculture University.So far,we've developed 6 manufacturing base in China.

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