CN106635383A

CN106635383A - Sesame oil extraction method

Info

Publication number: CN106635383A
Application number: CN201510735626.1A
Authority: CN
Inventors: 张玉; 夏江玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-02
Filing date: 2015-11-02
Publication date: 2017-05-10

Abstract

The invention relates to a sesame oil extraction method, in particular to a technological process for extracting volatile sesame essential oil from natural sesame seeds by a conventional supercritical CO2 extraction device. The extraction method includes the steps: firstly, cleaning the natural sesame seeds and removing sand-dust impurities and surface impurities to obtain pure sesame seeds; secondly, breaking or machining and crushing baked sesame seeds into half flaky sesame powder; thirdly, placing the sesame powder into a supercritical CO2 extraction kettle, performing separation extraction under the condition of controlling pressure, temperature, CO2 flow and time, respectively collecting two stages of extracts with different components and volatility by a two-stage collection kettle under the condition of different pressures and temperatures, and mixing the two stages of collected extracts to obtain finished sesame essential oil. The method is simple in process, safe, reliable, high in yield and good in quality, and edibility of sesame oil is not destroyed.

Description

A kind of extracting method of Oleum Sesami

Technical field：

The invention belongs to field of biological extraction, is related to a kind of super by raw material Jing of natural sesame seed seed Critical extraction is prepared into the technical process for seasoned food, and particularly a kind of Oleum Sesami is carried Take method.

Technical background：

Sesame is a kind of natural edible oil materials product, the oil-containing composition nutritive value pole in sesame Height, between 30%～50%, people are generally commonly referred to as perfume (or spice) to its common oil content sesame oil Oil, the essence that this is primarily due to contain in sesame oil is higher, people in edible sesame oil, Mainly use fragrance therein to adjust the fragrant degree and mouthfeel of food, at present, we utilize sesame When sesame oil is as flavouring, typically contained essence in sesame or referred to as sesame oil essence (are also had Referred to as essential oil) and contained grease mix and extracted from sesame seed by squeezing, And really play seasoning effect essential oil composition in this compound lard contained ratio it is not high, So when realizing that fragrance is adjusted by using sesame oil in some cases, existing toward contact Using inconvenience, essence consumption is wayward the shortcomings of, and because essence is included in sesame It is at present, existing extremely to fit using being just difficult to realize application purpose under water-soluble occasion among oil Natural sesame seed essence or essential oil process, but this kind of side are prepared using steam distillation It is low that method has a recovery rate, complex process, the low shortcoming of product purity.

The content of the invention：

It is an object of the invention to the shortcoming for overcoming prior art to exist, seeks design a kind of directly Using the method for supercritical technology separation and Extraction essential oil from sesame, for the tune of various food Taste, and increase its nutrient content.

To achieve these goals, it is of the invention with natural sesame seed as raw material, through cleaning, Baking, broken, extraction (supercritical CO₂), the technical process such as mixed collection produce sesame flavor oil, First natural sesame seed seed is cleaned, sand and dust debris is removed and surface impurity is obtained pure til seed Grain, then sesame seed carries out baking subsequently breaks up or mechanism is crushed to semi-laminar black sesame powder, so Afterwards black sesame powder is placed in into supercritical CO₂In extraction kettle, its pressure, temperature, CO are controlled₂It is accumulative to follow Extract under the conditions of circulation, while point two-stage collects kettle difference under different pressures and temperature conditionss Collect two-stage contain different components and volatile extract, two-stage is collected obtained by extract Mixing just obtains finished product sesame flavor oil.

The temperature that controls of baking box is 250～350 DEG C during present invention process, baking time For 30～50 minutes, CO₂Accumulative circular flow is 0.040～0.045 liter/gram black sesame powder, is extracted Kettle pressure is 15～25MPa, and temperature is 40～80 DEG C；The pressure for collecting kettle I is 7～8MPa, Temperature is 20～40 DEG C；The pressure for collecting kettle II is 5～6MPa, and temperature is 20～40 DEG C.

The sesame flavor oil of effumability, yield are produced from sesame seed using this technical process For 1～3%, wherein volatilizable composition accounts for 0.5～1.5%, the perfume (or spice) that product is produced compared with press type Oil phase ratio has volatility high, quality better, the advantages of fragrance is pure strong, and manufacture craft letter Single easily-controllable, purity is high, does not destroy the edibility of other lubricant components in sesame seed；This product Product can be widely used for food flavor regulation, with easy to use, the characteristics of thick flavor alcohol.

Specific embodiment：

The present invention is described in further details below by embodiment：

Embodiment 1：

7000 grams of natural high-quality sesame seeds are taken, is rinsed three times with clear water, and remove graininess 300 DEG C of temperature control is toasted 40 minutes in conventional baking box after sand and dust, then will using disintegrating machine Sesame after baking is broken into semi-laminar or 1/3rd sheet black sesame powders；Black sesame powder is uniformly filled out It is placed in 24 liters of extraction kettles of supercritical extraction unit (two grades of collection kettles are equipped with device), control Extraction kettle pressure be 18MPa, temperature be 50 DEG C, collect kettle I pressure be 8MPa, temperature For 30 DEG C, the pressure for collecting kettle II is 6MPa, and temperature is 25 DEG C, and routine operation is extracted And collection, work as CO₂When accumulative circular flow reaches 294 liters, stop extraction, two-stage is collected 133 grams of sesame flavor oil products are collected and mixed and to be obtained to extract in kettle, and country is met after testing Required standard.

Embodiment 2：

1500 grams of natural sesame seeds are taken, 300 DEG C of temperature are toasted 40 minutes after clear water rinses three times, After crushed into semi-laminar or 1/3rd sheets, 5 liters of extractions of supercritical extraction unit are placed into In kettle, it is 22MPa to control extraction kettle pressure, and temperature is 70 DEG C, and the pressure for collecting kettle I is 7.5MPa, temperature is 35 DEG C, and the pressure for collecting kettle II is 5.8MPa, and temperature is 28 DEG C, is entered Row extraction and collection, work as CO₂When accumulative circular flow is 65 liters, stop extraction, merge and collect The gleanings of kettle I and collection kettle II, obtain 32 grams of sesame flavor oil products, and mark is met after testing It is accurate.

Claims

1. a kind of extracting method of Oleum Sesami, in conventional supercritical CO₂Enter in extraction equipment OK, it is characterised in that first cleaned natural sesame seed seed, sand and dust debris are removed and surface is miscellaneous Matter obtains pure sesame seed, then the baking of sesame seed is broken or mechanism is crushed to semi-laminar sesame Powder, is then placed in supercritical CO by black sesame powder₂In extraction kettle, its pressure, temperature, CO are controlled₂ Accumulative circular flow is extracted, while point two-stage collects kettle under different pressures and temperature conditionss Respectively collect two-stage contain different components and volatile extract, two-stage is collected obtained by extraction Take thing mixing and just obtain finished product sesame flavor oil.