KR20070080027A - Method for manufacturing edible oil from raspberry and black berry class seeds - Google Patents

Abstract

A method of manufacturing edible oil using bramble seed as raw material by extracting roasted bramble seed with hexane is provided. The method recycles bramble seed which is hitherto used as livestock feed or fertilizer and produces edible oil with an unsaturated fatty acid content of more than 90%. A bramble seed is dried, roasted at more than 100deg.C for 3 to 30min while stirring, ground and extracted with 100 to 200ml hexane per 100g bramble seed powder at 40 to 70deg.C for 10 to 40min. The bramble seed extract is filtered and hexane is evaporated from the extract to obtain oil which is then purified to produce edible oil containing an unsaturated fatty acid content of more than 90%. The bramble seed is one or two or more seeds selected from Rubus idaeus seed, Rubus coreanus seed, raspberry seed, black berry seed and boysenberry seed.

Description

Method for manufacturing edible oil based on raspberry seeds {Method for manufacturing edible oil from raspberry and black berry class seeds}

The present invention relates to a method for producing edible oil using raspberry seeds as a raw material, and more particularly, to a method for producing high value-added edible oil from raspberry seeds, which are processed by-products that have been used as feed or fertilizer for livestock. .

Raspberry belongs to the family Rosaceae, with more than 450-750 species distributed throughout the world except Australia and Antarctica. Among them, about 20 species are distributed in Korea, including bokbunja strawberry, raspberry, raspberry, blackberry, boysenberry, and raspberry. Raspberries have an antioxidant vitamin C, and it is found that a large amount of substances beneficial to the human body, such as angular polyphenols and anthocyanins, has been gradually growing in Korea, and its consumption market is also growing. Raspberries are consumed as raw fruit, but are mostly distributed as processed products. In particular, most processed products are processed and distributed in the form of fermented alcoholic beverages. After processing raspberries, seeds remain and are now used or disposed of as livestock feed or fertilizer. The amount of seeds in the fruit was 3 to 15% by weight relative to the total weight of the fruit, and 15 to 75% by weight relative to the total weight of the fruit from which moisture was removed.

The present invention is to provide a method for producing edible oil by extracting and refining the fat of 90% or more unsaturated fatty acid efficiently from raspberry seeds, in particular processed raspberry seeds in order to solve such a conventional problem.

Edible oil production method using the raspberry seeds of the present invention for achieving the above object is dried crushed after drying the raspberry seeds treated with a high temperature hexane to obtain a lipid extract and then filtered the remaining hexane And a second step of evaporating fat to obtain a fat, and a second step of purifying fat obtained in the first step.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

First, the present invention separated the seeds from raspberries, dried and pulverized to prepare a powder in the form of a powder.

At this time, the raspberry seeds may be roasted before being crushed after drying. Roasting conditions are preferably roasted while stirring the raspberry seeds for 3-30 minutes at 100 ℃.

The raspberry seeds are one or two or more selected from the group consisting of bokbunja strawberry seeds, raspberry seeds, raspberry seeds, blackberry seeds and boisenberry seeds.

The raspberry seeds are seeds taken from processed raspberries or seeds taken from raw raspberries. At this time, the drying is carried out by a common drying method such as natural drying, hot air drying.

Typically, the content of seeds in the fruit is 15 ~ 75% by weight, the moisture content of the seed is 8 ~ 17% by weight, the crude fat content of the seed is 10 ~ 35% by weight.

Next, the pulverized seed powder is treated with hot hexane to obtain a lipid extract, which is then filtered and the remaining hexane is evaporated to obtain fat.

In this invention, the process demonstrated above is called 1st process.

Specifically, 100-200 ml of hexane is added per 100 g of crushed raspberry seeds and heated at 40-70 ° C. for 10-40 minutes, or by pouring hexane heated at 40-70 ° C. into crushed raspberry seeds. After obtaining a lipid extract, it is filtered and heated to evaporate and remove the remaining hexane to obtain fat.

At this time, the hexane evaporated can be recovered by cooling and reused. It is preferable to increase the fat recovery rate by repeating the extraction process of fat using hexane two to three times.

Next, cooking oil is manufactured through the process of refine | purifying the fat obtained by the 1st process (2nd process). The purification process is carried out through at least one process selected from the group consisting of degumming, alkali treatment, low temperature treatment, decolorization treatment and deodorization treatment.

It is more preferable to repeat the said 2nd process 2-3 times, and to raise a purification efficiency.

The cooking oil thus prepared contains 90% by weight or more of unsaturated fatty acids, 45 to 75% by weight of linoleic acid, and 10 to 40% by weight of linolenic acid, which is very useful as cooking oil.

The present invention can produce an edible oil having a degree of unsaturation of 90% or more from raspberry seeds used as a conventional livestock feed or fertilizer, so that the added value of the seeds in the raspberry by-products remaining after processing can be significantly increased.

Claims (10)

After drying the raspberry seeds, the ground pulverized product was treated with hot hexane to obtain a lipid extract, which was then filtered, and the remaining hexane was evaporated to obtain fat, and the second step of purifying fat obtained in the first step. A process for producing edible oil as a raw material of raspberry seeds, characterized in that it comprises a step. The method of claim 1, wherein the raspberry seeds are roasted before drying and then crushed. The method of producing an edible oil based on raspberry seeds according to claim 2, wherein the raspberry seeds are roasted while stirring for 3 to 30 minutes at 100 ° C. or more before grinding the dry raspberry seeds. The method for producing an edible oil based on raspberry seeds according to claim 1, wherein 100 to 200 ml of hexane is added per 100 g of the ground product and heated at 40 to 70 ° C for 10 to 40 minutes. The method for producing an edible oil based on raspberry seeds according to claim 1, wherein the crushed product is poured with hexane heated to 40 to 70 ° C. The edible oil according to claim 1, wherein the raspberry seeds are one or two or more selected from the group consisting of bokbunja strawberry seeds, wild strawberry seeds, raspberry seeds, blackberry seeds and boisenberry seeds. Manufacturing method. The method of claim 1, wherein the raspberry seeds are seeds obtained from processed raspberries or seeds taken from raw raspberries. The method of producing an edible oil based on raspberry seeds according to claim 1, wherein the content of unsaturated fatty acid in the edible oil is 90% by weight or more. The method for producing an edible oil based on raspberry seeds according to claim 1, wherein the content of linoleic acid in the cooking oil is 45 to 75% by weight and the content of linolenic acid is 10 to 40% by weight. The edible oil based on raspberry seeds according to claim 1, wherein the fat obtained in the first step is purified by at least one process selected from the group consisting of degumming, alkali treatment, low temperature treatment, decolorization treatment and deodorization treatment. Manufacturing method.