Grape seed oil
Grape seed oil in clear glass vial
Fat composition
Saturated fats
Total saturatedPalmitic: 7%
Stearic: 4%
Unsaturated fats
Total unsaturated86%
Monounsaturated16.1%
Palmitoleic acid<1%
Oleic acid15.8%
Polyunsaturated69.9%
Omega-3 fatty acidsα-Linolenic: 0.1%
Omega-6 fatty acidsLinoleic: 69.6%
Properties
Food energy per 100 g (3.5 oz)3,700 kJ (880 kcal)
Smoke point216 °C (421 °F)
Iodine value124-143
Saponification value126 (NaOH)
180-196 (KOH)
Unsaponifiable0.3% - 1.6%
Peroxide value2.92 mequiv/kg

Grape seed oil (also called grapeseed oil or grape oil) is a vegetable oil derived from the seeds of grapes. A by-product of the winemaking industry, it is typically used for edible applications.[1][2]

Uses

Cooking

Grape seed oil has a moderately high smoke point of approximately 216 °C (421 °F). Due to its clean, light taste, and high polyunsaturated fat content, it may be used as an ingredient in salad dressings and mayonnaise and as a base for oil infusions of garlic, rosemary, or other herbs or spices. It is widely used in baked goods, pancakes, and waffles. It is sprayed on raisins to help them retain their flavor.[2]

Research

Further information: Grape seed extract

A study of 21 grape cultivars showed variation of oil composition, especially for linoleic acid and tocopherols.[3]

Although grape seeds contain polyphenols, such as proanthocyanidins,[4] grape seed oil contains negligible amounts of these compounds.[5] Grape seed oil components are under study for their potential applications in human health, but the scientific quality of clinical research as of 2016 has been inadequate to suggest any effect on lowering disease risk.[6]

Possible contamination

Grapeseed oil has occasionally been found to contain dangerous levels of polycyclic aromatic hydrocarbons because of direct contact with combustion gases during the drying process.[7]

Production

Winemaking accounts for 90% of grape cultivation, with the seeds of the plant serving as a by-product that can be pressed for oil. Grapeseed oil production primarily occurs in wine-growing regions, especially around the Mediterranean Sea.[2]

Composition

Grape seeds (numbers 7 and 8) and grapes

The following table lists a typical fatty acid composition of grape seed oil:[8]

Acid Type Percentage
Linoleic acid ω−6 unsaturated 69.6%
Oleic acid ω−9 unsaturated 15.8%
Palmitic acid
(Hexadecanoic acid) 		Saturated 7%
Stearic acid
(Octadecanoic acid) 		Saturated 4%
Alpha-linolenic acid ω−3 unsaturated 0.1%
Palmitoleic acid
(9-Hexadecenoic acid) 		ω−7 unsaturated less than 1%

Grape seed oil also contains 0.8 to 1.5% unsaponifiables rich in phenols (tocopherols) and steroids (campesterol, beta-sitosterol, stigmasterol).[9] Grapeseed oil contains small amounts of vitamin E, but safflower oil, cottonseed oil, or rice bran oil contain greater amounts.[10] Grapeseed oil is high in polyunsaturates and low in saturated fat.

Comparison to other vegetable oils

Properties of vegetable oils[11][12]
The nutritional values are expressed as percent (%) by mass of total fat.
Type Processing
treatment[13]		 Saturated
fatty acids		 Monounsaturated
fatty acids		 Polyunsaturated
fatty acids		 Smoke point
Total[11] Oleic
acid
(ω-9)		 Total[11] α-Linolenic
acid
(ω-3)		 Linoleic
acid
(ω-6)		 ω-6:3
ratio
Avocado[14] 11.6 70.6 52–66
[15]		 13.5 1 12.5 12.5:1 250 °C (482 °F)[16]
Brazil nut[17] 24.8 32.7 31.3 42.0 0.1 41.9 419:1 208 °C (406 °F)[18]
Canola[19] 7.4 63.3 61.8 28.1 9.1 18.6 2:1 204 °C (400 °F)[20]
Coconut[21] 82.5 6.3 6 1.7 175 °C (347 °F)[18]
Corn[22] 12.9 27.6 27.3 54.7 1 58 58:1 232 °C (450 °F)[20]
Cottonseed[23] 25.9 17.8 19 51.9 1 54 54:1 216 °C (420 °F)[20]
Cottonseed[24] hydrogenated 93.6 1.5 0.6 0.2 0.3 1.5:1
Flaxseed/linseed[25] 9.0 18.4 18 67.8 53 13 0.2:1 107 °C (225 °F)
Grape seed   10.4 14.8 14.3   74.9 0.15 74.7 very high 216 °C (421 °F)[26]
Hemp seed[27] 7.0 9.0 9.0 82.0 22.0 54.0 2.5:1 166 °C (330 °F)[28]
High-oleic safflower oil[29] 7.5 75.2 75.2 12.8 0 12.8 very high 212 °C (414 °F)[18]
Olive, Extra Virgin[30] 13.8 73.0 71.3 10.5 0.7 9.8 14:1 193 °C (380 °F)[18]
Palm[31] 49.3 37.0 40 9.3 0.2 9.1 45.5:1 235 °C (455 °F)
Palm[32] hydrogenated 88.2 5.7 0
Peanut[33] 16.2 57.1 55.4 19.9 0.318 19.6 61.6:1 232 °C (450 °F)[20]
Rice bran oil 25 38.4 38.4 36.6 2.2 34.4[34] 15.6:1 232 °C (450 °F)[35]
Sesame[36] 14.2 39.7 39.3 41.7 0.3 41.3 138:1
Soybean[37] 15.6 22.8 22.6 57.7 7 51 7.3:1 238 °C (460 °F)[20]
Soybean[38] partially hydrogenated 14.9 43.0 42.5 37.6 2.6 34.9 13.4:1
Sunflower[39] 8.99 63.4 62.9 20.7 0.16 20.5 128:1 227 °C (440 °F)[20]
Walnut oil[40] unrefined 9.1 22.8 22.2 63.3 10.4 52.9 5:1 160 °C (320 °F)[41]

See also

References

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  3. ^ Sabir, A; Unver, A; Kara, Z (2012). "The fatty acid and tocopherol constituents of the seed oil extracted from 21 grape varieties (Vitis spp.)". Journal of the Science of Food and Agriculture. 92 (9): 1982–7. doi:10.1002/jsfa.5571. PMID 22271548.
  4. ^ Joshi, SS; Kuszynski C. A.; Bagchi D. (2001). "The cellular and molecular basis of health benefits of grape seed proanthocyanidin extract". Curr Pharm Biotechnol. 2 (2): 187–200. doi:10.2174/1389201013378725. PMID 11480422.
  5. ^ Nakamura, Y; Tsuji S; Tonogai Y (2003). "Analysis of proanthocyanidins in grape seed extracts, health foods and grape seed oils" (PDF). Journal of Health Science. 49 (1): 45–54. doi:10.1248/jhs.49.45.
  6. ^ Garavaglia, J; Markoski, M. M.; Oliveira, A; Marcadenti, A (2016). "Grape Seed Oil Compounds: Biological and Chemical Actions for Health". Nutrition and Metabolic Insights. 9: 59–64. doi:10.4137/NMI.S32910. PMC 4988453. PMID 27559299.
  7. ^ Moret, S.; Dudine, A.; Conte, L.S. (2000). "Processing effects on the polyaromatic hydrocarbon content of grapeseed oil". Journal of the American Oil Chemists' Society. 77 (12): 1289–1292. doi:10.1007/s11746-000-0203-5. S2CID 97459242.
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  13. ^ "USDA Specifications for Vegetable Oil Margarine Effective August 28, 1996" (PDF).
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  17. ^ "Brazil nut oil, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
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  22. ^ "Corn oil, industrial and retail, all purpose salad or cooking, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  23. ^ "Cottonseed oil, salad or cooking, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  24. ^ "Cottonseed oil, industrial, fully hydrogenated, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  25. ^ "Linseed/Flaxseed oil, cold pressed, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  26. ^ Garavaglia J, Markoski MM, Oliveira A, Marcadenti A (2016). "Grape Seed Oil Compounds: Biological and Chemical Actions for Health". Nutrition and Metabolic Insights. 9: 59–64. doi:10.4137/NMI.S32910. PMC 4988453. PMID 27559299.
  27. ^ Callaway J, Schwab U, Harvima I, Halonen P, Mykkänen O, Hyvönen P, Järvinen T (April 2005). "Efficacy of dietary hempseed oil in patients with atopic dermatitis". The Journal of Dermatological Treatment. 16 (2): 87–94. doi:10.1080/09546630510035832. PMID 16019622. S2CID 18445488.
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  30. ^ "Olive oil, salad or cooking, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  31. ^ "Palm oil, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  32. ^ "Palm oil, industrial, fully hydrogenated, filling fat, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  33. ^ "Oil, peanut". FoodData Central. usda.gov.
  34. ^ Orthoefer FT (2005). "Chapter 10: Rice Bran Oil". In Shahidi F (ed.). Bailey's Industrial Oil and Fat Products. Vol. 2 (6th ed.). John Wiley & Sons, Inc. p. 465. doi:10.1002/047167849X. ISBN 978-0-471-38552-3.
  35. ^ "Rice bran oil". RITO Partnership. Retrieved 22 January 2021.
  36. ^ "Oil, sesame, salad or cooking". FoodData Central. fdc.nal.usda.gov. 1 April 2019.
  37. ^ "Soybean oil, salad or cooking, fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  38. ^ "Soybean oil, salad or cooking, (partially hydrogenated), fat composition, 100 g". US National Nutrient Database, Release 28, United States Department of Agriculture. May 2016. Retrieved 6 September 2017.
  39. ^ "FoodData Central". fdc.nal.usda.gov.
  40. ^ "Walnut oil, fat composition, 100 g". US National Nutrient Database, United States Department of Agriculture.
  41. ^ "Smoke Point of Oils". Baseline of Health. Jonbarron.org.
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