Sandalwood is a rare and precious plant, mainly produced in India, Indonesia and Malaysia, and is now cultivated in Taiwan, Hainan, Yun and other places. Sandalwood has the reputation of "green gold" and "king of spices", it is mainly derived from the wood heartwood or its resin of sandalwood tree, the closer to the heart and root of the tree, the better the quality of the material, often made of wood blocks, wood strips, wood powder and so on into sandalwood essential oil. Sandalwood is divided into sandalwood, rosewood, rosewood and other categories.
Sandalwood is recognized in the world as an advanced spice plant. Sandalwood oil extracted from sandalwood is the most expensive of all the herbs and trees in nature. The fragrance made from sandalwood oil is not only fragrant, fresh, refreshing and mellow in fragrance, but also has the advantages of acid, alkali, sterilization, anti-corrosion, light stability and sweat suppression. Sandalwood oil is a necessary basis for preparing other high-grade perfumes and fragrances, so it is widely used in cosmetics, daily necessities, religious articles, and even health food and cigarette processing industry. However, sandalwood tree growth is extremely slow, usually takes decades to become wood, is one of the slowest growing trees, and sandalwood tree is very delicate, in the seedling period must be parasitic on Phoenix tree, acacia, red bean tree and other plants to survive. Therefore, the output of sandalwood is very limited, but people's demand for it is very large, so from ancient times to the present, it is expensive and rare precious materials, and the price of sandalwood oil on the market is also soaring, which makes its application in many aspects are limited. In order to meet people's demand for sandalwood, people continue to synthesize various compounds with sandalwood aroma according to the principle of molecular structure and aroma and sandalwood hair aroma substances, and find new alternative varieties and resources, which has become the common goal of sandalwood fragrance researchers. In recent decades, synthetic sandalwood has become one of the most developed synthetic fragrances. The synthetic sandalwood type fragrance has a small volatility and high chemical stability, which is both the main flavor and the fixed flavor agent, and can improve the persistence and stability of the flavor. In addition, synthetic sandalwood can also coordinate the aroma of flush and fantasy components well, so it is used to prepare perfume and soap fragrance. In short, the research and development of synthetic sandalwood has very important practical significance.
Ingredients of natural sandalwood
Natural sandalwood was first refined from sandalwood leaves, roots, wood chips and so on to obtain oil products, the main components of oil products are santalol, santalene ketone, α-santalene alcohol, santalene, santalic acid, santalone, santalic acid [1]. However, its main aroma component is santalol, a white or yellowish viscous liquid, which has two isomers: α-santalol (tricyclosesquitenol) and β-santalol (dicyclosesquiterpenol) [2]. The high-purity alpha-santalol has a lighter sandalwood aroma, while the high-purity β-santalol has a classic sandalwood aroma and is usually used directly in the form of a blend with a sweet sandalwood-like aroma.
Although many methods of synthesizing santalol have been studied over the years, they are not suitable for industrial scale production due to the long route of synthesizing α-santalol and β-santalol, more reagents required, high operational difficulty, and low yield [3]. At present, commercial grade santalol is obtained from sandalwood oil by vacuum fractionation. Based on this, all countries in the world have turned to cheap and easy to obtain turpentine as the starting raw material, through a simple and easy synthetic way to prepare and natural santalol with similar structure or similar aroma of "synthetic sandalwood" as a substitute for natural sandalwood oil, for perfumers to choose.
Sandalwood 803
Sandalwood 803 is the largest and oldest of the synthetic sandalwood spices, which was developed by Byers in 1947 and put into production in Givaudan in 1955 under the name Sandela. As early as the 1950s, China also successfully developed this product and put it into production in Shanghai Xinhua Fragrance Factory, which was also novel in the world at that time, so the former Ministry of Light Industry took a secret code "803" for it. The product is colorless to yellow viscous liquid, with a long lasting sandalwood aroma, low volatility, is an excellent fixing agent, and flower aroma, fantasy aroma is very coordinated, can be used in a large number of perfumes and soap fragrances.
Sandalwood 803 is a mixture containing 3-camphoryl cyclohexanol (or 3-camphoryl cyclohexanol) prepared from camphorene and guaiacol by acid catalyst such as sulfuric acid, boron trifluoride ether or active white earth through Friedel-Craft, alkylation reaction and catalytic hydrogenation. It has a strong sandalwood aroma, and the reaction way is shown in the figure
Sandalwood transparent super thick liquid, can flow
Smell: Smoky, woody, very light smell.
When I tasted this incense, I was very doubtful about the smell, and checked some information. If according to the book, there are many isomers that do not smell at low temperatures in this synthetic sandalwood 803, the use of this raw material in the warming scene will have better effects, such as incense wire mosquito coil incense.
Other food additives available
Post time:2024-04-26
