VEGETABLE OIL PRODUCING PLANTS,Coconut Palm Tree,1894 Antique Wood Engraving
VEGETABLE OIL PRODUCING PLANTS,Coconut Palm Tree ,1894 Antique Wood Engraving
Historical Collectible Botanical Art Print
Many species of plants produce seeds containing fats - these fats are used as a food reserve for the developing seedling and they are quite often present in sufficient quantities to make their extraction, in the form of an oil, worthwhile. Vegetable oil has a wide range of uses, and whilst many of these involve processes that are too technical for small scale ventures, there are still many ways in which we can employ them - as a food for example, or as a lubricant, a fuel for paraffin lamps and as a wood preservative. Oils are often divided into three categories according to their qualities, these categories are non-drying, semi- drying and drying. Non-drying oils are slow to oxidise and so remain liquid for a long time. This quality makes them particularly useful as lubricants and as a fuel for lamps. Drying oils, on the other hand, are quite quick to oxidise and become solid, thus they are often used in paints and varnishes - Linseed oil is a good example of this. Semi-drying oils have qualities intermediate between the above two groups. Almost all commercially grown oil seed crops in the temperate zone are of annual plants. The list is quite long and we do not intend to deal with them in this leaflet but some of the most common ones are Rape, Soya, Linseed, Sunflower and Safflower. There are also, however, quite a few perennial species that could be utilised for oil production and some of the more promising of these will no be mentioned. Unless stated otherwise they all produce an edible oil.
Approximate Overall Size: 12 X 9 1/2 inches
CONDITION: Book Plate - Excellent Condition. Folded. As Scanned. German Text. Beautiful with excellent detail.