Flashcards
Cfe Higher Chemistry - Unit 2: Natures's Chemistry - Fragrances
Flashcards do conjunto (9)
- 1What is an essential oil?Hydrophobic liquids which contain mixtures of volatile aroma compounds
- 2Uses of Essential oilsUsed in perfumes, cosmetics products, cleaning products and as flavorings in foods.
- 3How are essential oils extracted from plant material?Through steam ditillation. Steam distillation allows the boiling point of the oils to be lowered, enabling them to be extracted.
- 4What is the key component found in many essential oils?isoprene
- 5How are terpenes formed?by the joining together of multiple isoprene units.
- 6General formula for terpenes(C5H8)n where "n" is the no. of isoprene units
- 7What are the two structures isoprene units can form?Linear - isoprene molecules join "head" to "tail"
Cyclic - isoprene units join to form ring structures - 8What is a terpenoid?a terpene containing oxygen
- 9Why are terpenes important for flavour and the aroma of food?Terpenes are an important component of essentail oils and are found in many spices and plants
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- Cfe Higher Chemistry - Unit 2: Natures's Chemistry - Fragrances
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