value for fighting dental cavities. Jamaican cobnut oil, a sweet, fine-flavored oil pressed from the seeds of Omphalea triandra in the tropical Americas. It is also reported to be used as a lubricant. Hazelnut oil, mainly used for its flavor. Also used in skin care, because of its slight astringent nature. Macadamia oil, with a mild nutty flavor and a high smoke point. Mongongo nut oil (or manketti oil), from the seeds of the Schinziophyton rautanenii, a tree which grows in South Africa. High in vitamin E. Also used in skin care. Pecan oil, valued as a food oil, but requiring fresh pecans for good quality oil. Pine nut oil, sold as a gourmet cooking oil, and of potential medicinal interest as an appetite suppressant. Pistachio oil, a strongly flavored oil with a distinctive green color. Walnut oil, used for its flavor, also used by Renaissance painters in oil paints. Pumpkin seed oil Citrus oils A number of citrus plants yield pressed oils. Some, such as lemon and orange oil, are used as essential oils, which is uncommon for pressed oils.<ref group="note">Lime oil, for example, is distilled, not pressed. See Jackson, p. 131</ref> The seeds of many if not most members of the citrus family yield usable oils. Grapefruit seed oil, extracted from the seeds of grapefruit (Citrus × paradisi). Grapefruit seed oil was extracted experimentally in 1930 and was shown to be suitable for making soap. Lemon oil, similar in fragrance to the fruit. One of a small number of cold pressed essential oils. Used as a flavoring agent and in aromatherapy. Orange oil, like lemon oil, cold pressed rather than distilled. Consists of 90% d-Limonene. Used as a fragrance, in cleaning products and in flavoring foods. Oils from melon and gourd seeds Members of the Cucurbitaceae include gourds, melons, pumpkins, and squashes. Seeds from these plants are noted for their oil content, but little information is available on methods of extracting the oil. In most cases, the plants are grown as food, with dietary use of the oils as a byproduct of using the seeds as food. Bitter gourd oil, from the seeds of Momordica charantia. High in α-Eleostearic acid. Of current research interest for its potential anti-carcinogenic properties. Bottle gourd oil, extracted from the seeds of the Lagenaria siceraria, widely grown in tropical regions. Used as an edible oil. Buffalo gourd oil, from the seeds of the