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225 results about "Volatile flavor" patented technology

It is believed that the volatile flavors are entrapped as impurities within the crystal structure. The resulting compositions have excellent stability over a wide range of humidities, are soluble in both hot and cold water, and have application as flavor and aroma modifiers for foods.

Method for separating and analyzing volatile and semi-volatile flavor components in tobacco by using liquid chromatography-gas chromatography/mass spectrometry technology

A method for separating and analyzing volatile and semi-volatile flavor components in tobacco by using liquid chromatography-gas chromatography / mass spectrometry technology comprises the following steps: 1. taking a given weight of tobacco products and extracting the volatile and semi-volatile flavor components from the tobacco by simultaneously adopting distillation and extraction; 2. concentrating the extracted samples with a concentrator; 3. carrying out group component separation on the concentrated extracted samples by normal-phase liquid chromatography and collecting distillates by different time sections; and 4. concentrating the collected distillates by the concentrator and respectively entering a gas chromatography-mass spectrometer (GC-MS) for detailed analysis. Compared with theprior art, the method of the invention can effectively extract the volatile and semi-volatile flavor components from the tobacco, carry out group component separation on the extract liquor by normal-phase liquid chromatography, then carry out accurate GC-MS qualitative and quantitative analysis on each group component according to different boiling points, not only has good selectivity and high separation efficiency but also ensures more accurate qualitative and quantitative analysis of each component.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC

Detection method for volatile flavor substance of edible vegetable oil

InactiveCN104458991AEasy to handleRapid qualitative and quantitative analysisComponent separationVegetable oilVolatile flavor
The invention discloses a detection method for a volatile flavor substance of an edible vegetable oil. The method comprises the following steps: (1) putting samples into a headspace bottle, preheating at 55-65 DEG C for 15-20 minutes, inserting an aged solid-phase micro-extraction head into the headspace bottle, adsorbing for 40-50 minutes, and then inserting the extraction head into a gas chromatography sampling opening, analyzing at 250-260 DEG C for 3-5 minutes, carrying out volatile flavor substance extraction and enrichment on the detected samples of the edible vegetable oil; and (2) determining chromatographic conditions, wherein the chromatographic column is 30m*0.25mm*0.25mu m of J&W DB-5MS UI capillary chromatography column; the temperature of the sampling opening is 250 DEG C; the chromatographic column is splitless; a carrier gas is high-purity helium; and the flow rate is 1.0mL/min; carrying out temperature programming; according to chromatographic condition, injecting the prepared samples into a gas chromatograph-mass spectrometer to separate and detect, and obtaining components and relative content of the volatile component of the edible vegetable oil according to the determined original chromatographic data and mass spectrometric data. The method disclosed by the invention is simple in sample pretreatment, and free of a solvent, and qualitative and quantitative analysis of the volatile flavor substance of the edible vegetable oil can be rapidly achieved.
Owner:SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI

Subcritical production method for peony seed oil extraction

The invention relates to the technical field of peony seed oil extraction, in particular to a subcritical production method for peony seed oil extraction. The subcritical production method comprising the following steps: (1) peeling peony seeds and crushing; (2) completing primary resolving; (3) completing secondary resolving; (4) preparing peony seeds crude oil; (5) degumming through a hydration method; (6) deacidifying through a high temperature sparse soda method; (7) decolorizing with activated clay; (8) performing steam distillation for deodorization to obtain finished oil. According the subcritical production method, mass production of the peony seeds is realized, and not only are solvent consumption and production cost low, but also the quality of obtained meal is good, so that residues are fully utilized, and resources are saved. The current subcritical extraction technology is an efficient, low-consumption, environment-friendly and safe extraction technology with a wide application prospect, is widely applied to extraction and separation of pharmaceutical intermediates, fat-soluble pigments and volatile flavor and fragrance, is in a leading level in the domestic extraction industry, and represents the latest technological development direction.
Owner:山西鑫中大生物科技有限公司

Method for judgment of cheddar grade based on identification characteristic flavor composition

The present invention discloses a method for judgment of cheddar cheese grade based on identification characteristic flavor compounds, comprising the following steps: selecting cheddar cheese of different grades as standard product, and extracting volatile flavor compounds from the standard product; using gas phase-sniffing device to screen out characteristic flavor compounds with higher flavor intensity from the volatile flavor compounds through aroma extract dilution analysis; proceeding with clustering of characteristic flavor compounds as screened out to obtain identification characteristic flavor compounds of cheddar cheese; measuring the concentration of identification characteristic flavor composition of cheddar cheese of known grade, and establish the training set for training of support vector machine; measuring the concentration of identification characteristic flavor composition of cheddar cheese to be tested, and inputting it into the support vector machine trained to judge the grade of cheddar cheese to be tested. The present invention aims to obtain the model of identification characteristic flavor compounds of cheddar cheese through statistical analysis, which is available for accurate judgment of cheddar cheese quality grade on this basis.
Owner:BEIJING TECHNOLOGY AND BUSINESS UNIVERSITY

Concentrated wine containing purple onions and preparation method of concentrated wine

The invention discloses concentrated wine containing purple onions, brandy with an onion flavor and a preparation method of the concentrated wine and the brandy. Grapes and the purple onions are taken as raw materials, and onion pieces and a mixture of grape juice, grape skin and seed are subjected to biological fermentation. The fermentation process is performed as follows: yeast aerobic fermentation and alcohol fermentation are performed, and the concentrated wine containing the purple onions and a byproduct, the brandy with the onion flavor, are prepared after freeze concentration, reduced pressure distillation, ultra-filtration sterilization, sterile filling and other processes. With the adoption of the preparation method, the problems about onion odor elimination and effective protection of non-volatile flavor substances and nutritional ingredients are solved, the concentration of nutritional and functional materials of the purple-onion-containing concentrated wine prepared with the method is increased by 5-6 times, the onion flavor and the fragrance of the wine and the brandy are rich, the tastes are extremely good, and the health-care function is remarkable. Little residual onion odor in the byproduct, the brandy with the onion flavor, can generate a special stimulation to the taste and the smell of a drinker, and accordingly, the unique flavor and taste of the brandy with the onion flavor are formed.
Owner:LIAONING TIANCHI WINERY GROUP

Preparation method for compound with flavor of Xinyang maojian tea

InactiveCN101928643AKeep tea fragrancePreserve the unique tea aroma of Xinyang MaojianEssential-oils/perfumesPectinasePhenolic content in tea
The invention relates to a preparation method for a compound with flavor of Xinyang maojian tea, which comprises the following steps: taking the Xinyang maojian tea and wastes in Xinyang maojian production as raw materials, crushing the raw materials into granules with the gain size of 30-60 meshes; adding 1-5% (v/w) of absolute ethyl alcohol as entrainer; carrying out supercritical CO2 extraction to obtain volatile flavor material of the Xinyang maojian tea, wherein after the supercritical CO2 extraction, the feed liquid ratio (w/v) of the tea-leaf to water is 1:10-1:20; adding mixed enzymic preparations of xylanase, pectinase and protease into the feed liquid after the ultrasonication for enzymolysis for 15-30min; filtering, washing and ultrafiltering, then concentrating the filter liquid and then adding 0.3-1.8% (w/v) of beta-cyclodextrin; and then carrying out freeze drying to obtain the taste components in the compound with the flavor of the Xinyang miaojian tea. The content of the main components i.e. tea polyphenol, free amino acid and soluble sugar in the compound with the flavor of the Xinyang maojian tea prepared by the method of the invention is improved; and the product of the invention has fresh and sweet taste and can keep the unique tea perfume of the Xinyang maojian tea.
Owner:HENAN UNIVERSITY OF TECHNOLOGY
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