摘要:
New anisotropic compounds of the formula (1) are useful in liquid crystal mixtures for electrooptical displays; at least one of the end groups of the compounds (1) is an alkyl group which carries cyano or halogen in a terminal or non-terminal position. This offers advantages for longitudinal polarization and/or cross-polarization of the anisotropic compounds with the aid of the comparatively highly polarizing cyano or halogen substituents, in particular high clear points, low ##EQU1## values and/or negative .DELTA..epsilon. values.
摘要:
New anisotropic compounds with a cross-polarizing substituent have the formula (1) ##STR1## The increase in .epsilon..perp. is achieved by the polarizing group X, preferably the cyano group or a halogen atom, which is not laterally on the ring, as with the known compounds, but is on the bridge, that is to say is part of the main bridge bonding rings A and B to one another. Ring A has the formula (1a) or (1b) given herein and is always cycloaliphatic, while ring B can be identical to ring A or is an aromatic ring of the formula (1c) or (1d) herein. R.sup.1 and R.sup.2 are identical or different end groups of the formula (1e) herein.The radical X on the bridge causes less widening of the molecule than a radical X on a ring, which provides comparatively higher clear points and moreover enables aromatic rings to be omitted from the anisotropic compounds.
摘要:
The present invention relates to a bakery product with improved flavour properties and in particular an improved flavour shelf life. The product is prepared from a dough comprising flour, water, proline and an alkane polyol preferably wet, present in an effective amount to improve the flavour properties of said product when baked.
摘要:
Flavorant compounds and compositions for food substances are prepared in a food-acceptable manner by bio-conversion of a cysteine S-complex with a food-acceptable micro-organism, particularly a yeast or filamentous fungus, which, upon incubation with the complex, splits the complex at a terminal carboxyl group in a beta position to yield a product including a thiol and at least one metabolite compound, and the product is isolated.
摘要:
2-acetyl-1-pyrroline is prepared by hydrolyzing a 2-(1-alkoxyethenyl)-1-pyrroline compound with an acid and then the reaction medium is neutralized with an equimolar amount of a base to obtain a neutralized reaction medium containing the 2-acetyl-1-pyrroline. A cyclodextrin and/or maltodextrin support material is added to the neutralized medium which then is freeze-dried to isolate the 2-acetyl-1-pyrroline with the support to obtain the 2-acetyl-1-pyrroline incorporated with the support material.
摘要:
2-(1-alkoxyethenyl)-1-pyrroline compounds. The compounds may be employed for preparing food flavorant compositions, and 2-(1-ethoxyethenyl)-1-pyrroline, in particular, has characteristics suiting it as a flavoring agent for food products.
摘要:
New anisotropic compounds of the formula (1) are useful in liquid crystal mixtures for electrooptical displays; at least one of the end groups of the compounds (1) is an alkyl group which carries cyano or halogen in a terminal or non-terminal position. This offers advantages for longitudinal polarization and/or cross-polarization of the anisotropic compounds with the aid of the comparatively highly polarizing cyano or halogen substituents, in particular high clear points, low .DELTA..epsilon./.epsilon..perp. values and/or negative .DELTA..epsilon. values.
摘要:
The invention relates to a thermally processed ready to drink liquid coffee product having an improved flavor quality after thermal processing and storage due to the incorporation of a thioester flavor precursor at a concentration of 0.005 to 7 mg/kg. Preferably, the flavor precursor is furfurylthioacetate, methylthioacetate or prenylthioacetate or combinations thereof and not limited to the above. The invention also relates to a process for preparing the improved flavor quality of a thermally processed coffee product.
摘要:
Process for the preparation of a vegetable juice or puree in which at least one fresh vegetable is homogenized in the presence of water, where appropriate under an inert atmosphere, so as to release the flavor precursors and part of the endogenous enzymes, the homogenate is incubated at a temperature of between 0.degree. C. and 70.degree. C. for 5 min to 24 h, it is processed, where appropriate, into juice or puree, and then it is pasteurized. Cooked juice or puree derived from unblanched vegetables, capable of being obtained by the process, having an enhanced raw flavor, and a natural color which is better preserved than that of the same cooked juice or puree derived from blanched vegetables. Use of a juice or puree, or of a dry extract of juice or puree in the preparation of a food product.
摘要翻译:用于制备蔬菜汁或pur + E,acu e + EE e的方法,其中至少一种新鲜植物在适当的情况下在水的存在下在惰性气氛下均化,以释放出风味前体和部分 将内源性酶,匀浆在0℃至70℃的温度下孵育5分钟至24小时,在适当情况下将其加工成果汁或pur + E,acu e + EE e和 然后将其进行巴氏杀菌。 煮熟的果汁或pur + E,acu e + EE e衍生自未漂白的蔬菜,能够通过该方法获得,具有增强的原味,以及比同样的熟的果汁或pur + E更好地保存的天然色素 ,acu e + EE e衍生自漂白的蔬菜。 使用果汁或pur + E,acu e + EE e或果汁或pur + E的干提取物,acu e + EE e制备食品。
摘要:
3- or 4-mono-, 1,3- or 1,4- or even 3,4-disubstituted derivatives of quinic acid are produced by reaction of a hydroxycinnamic acid derivative, of which the phenol group(s) is/are protected with a quinic acid derivative, to form an ester and the different reactivities of the OH functions in the 3 and 4 positions are used to carry out the esterification selectively under low temperature conditions, after which the protective groups are cleaved under controlled acidity and temperature conditions. These conditions avoid any degradation or isomerization. The process enables new quinides to be obtained in high yields.