阅读说明：本技术 一种烟用雪花梨提取物的制备方法 (Preparation method of snow pear extract for cigarettes ) 是由 李维佳 陈志民 何爱民 张丽 陈健 于 2020-05-08 设计创作，主要内容包括：本发明属于香精香料技术领域,提出了一种烟用雪花梨提取物的制备方法,包括以下步骤：A、将雪花梨清洗、去皮去核、切块后加入预处理剂,打浆后脱水处理,得到雪花梨预处理物；所述预处理剂由质量比为1～2：7的抗坏血酸棕榈酸酯与山梨糖醇的混合而成；B、取一半质量的雪花梨预处理物,用体积分数为60％的乙醇浸提、过滤、浓缩,得到第一提取物；C、取另一半质量的雪花梨预处理物,用丙酸乙酯浸提、过滤、浓缩,得到第二提取物；D、将第一提取物与第二提取物混合,得到烟用雪花梨提取物。通过上述技术方案,解决了现有技术中的提取方法的得到的雪花梨提取物中黄酮类化合物含量少、提取率低的问题。(The invention belongs to the technical field of flavors and fragrances, and provides a preparation method of a snow pear extract for cigarettes, which comprises the following steps: A. cleaning snow pears, peeling, removing kernels, cutting into blocks, adding a pretreating agent, pulping, and performing dehydration treatment to obtain a snow pear pretreatment substance; the pretreating agent is prepared from the following components in a mass ratio of 1-2: 7, ascorbyl palmitate and sorbitol; B. taking half of the mass of the snow pear pretreatment, extracting with ethanol with the volume fraction of 60%, filtering, and concentrating to obtain a first extract; C. taking the other half of the snow pear pretreatment substance by mass, leaching with ethyl propionate, filtering, and concentrating to obtain a second extract; D. and mixing the first extract and the second extract to obtain the snow pear extract for cigarettes. By adopting the technical scheme, the problems of low content of flavonoid compounds and low extraction rate in the snow pear extract obtained by the extraction method in the prior art are solved.)

1. A preparation method of a snow pear extract for cigarettes is characterized by comprising the following steps:

A. cleaning snow pears, peeling, removing kernels, cutting into blocks, adding a pretreating agent, pulping, and performing dehydration treatment to obtain a snow pear pretreatment substance;

the pretreating agent is prepared from the following components in a mass ratio of 1-2: 7, ascorbyl palmitate and sorbitol;

B. taking half of the mass of the snow pear pretreatment, extracting with ethanol with the volume fraction of 60%, filtering, and concentrating to obtain a first extract;

C. taking the other half of the snow pear pretreatment substance by mass, leaching with ethyl propionate, filtering, and concentrating to obtain a second extract;

D. and mixing the first extract and the second extract to obtain the snow pear extract for cigarettes.

2. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein the dehydration treatment in the step A is carried out until the moisture content in the obtained snow pear treated substance is less than or equal to 2%.

3. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein the amount of the pretreatment agent in the step A is 2-5% of the mass of the snow pears.

4. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein the leaching temperature in step B, C is 45-60 ℃ and the leaching time is 1-1.5 hours.

5. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein the concentration in the step B is carried out until the relative density is 1.2720-1.2880.

6. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein the concentration in the step C is carried out until the relative density is 1.2720-1.2880.

7. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein the amount of the ethanol is 3-4 times of the amount of the snow pear pretreatment substance, and the amount of the ethyl propionate is 3-4 times of the amount of the snow pear pretreatment substance.

8. The preparation method of the snow pear extract for the cigarettes according to claim 1, wherein in the step D, the mass ratio of the first extract to the second extract is 1: 1 and mixing.

Technical Field

The invention belongs to the technical field of flavors and fragrances, and relates to a preparation method of a snow pear extract for cigarettes.

Background

The snow pear belongs to the white pear system, and the main producing areas are provinces such as Hebei, Shandong, Liaoning, Hubei, Jiangsu, Anhui, Sichuan and Gansu, wherein Zhao county snow pear is a good variety. The cultivation history of the snow pears in Zhao county is long and can be traced to more than two thousand years ago. The snow pear is named after being white like jade, frost like snow, and carries the saying of big like a fist, sweet like honey, crisp like a water chestnut, and the fruit is big, round, thin in skin, thick in meat, good in color, rich in juice, fragrant and sweet in taste, and is famous all over the world with Zhao Zuoqiao. The snow pear can be used as raw material for edible or health-care products, such as canned food, pear juice, pear paste, preserved pear, pear wine and other health-care foods with various flavors, and also can be used for medical treatment, and has the medical effects of promoting the production of body fluid, moistening dryness, clearing away heat and toxic materials, reducing phlegm and relieving cough.

The snow pear contains rich sugar, organic acid, potassium, nitrogen, iron and other mineral substances, and also contains rich phenolic substances, mainly phenolic acids and flavone compounds such as arbutin, chlorogenic acid, catechin and the like, and the extract containing the flavone compounds has the effect of softening smoke and reducing stimulation when being used in cigarettes, so the snow pear extract can be used for preparing cigarette essence. However, the existing snow pear extract is usually extracted by 95% ethanol, and the obtained snow pear extract has low content of flavonoid compounds and low extraction rate.

Disclosure of Invention

The invention provides a preparation method of a snow pear extract for cigarettes, and solves the problems of low content of flavonoid compounds and low extraction rate of the snow pear extract obtained by the extraction method in the prior art.

The technical scheme of the invention is realized as follows:

a preparation method of a snow pear extract for cigarettes comprises the following steps:

A. cleaning snow pears, peeling, removing kernels, cutting into blocks, adding a pretreating agent, pulping, and performing dehydration treatment to obtain a snow pear pretreatment substance;

the pretreating agent is prepared from the following components in a mass ratio of 1-2: 7, ascorbyl palmitate and sorbitol;

B. taking half of the mass of the snow pear pretreatment, extracting with ethanol with the volume fraction of 60%, filtering, and concentrating to obtain a first extract;

C. taking the other half of the snow pear pretreatment substance by mass, leaching with ethyl propionate, filtering, and concentrating to obtain a second extract;

D. and mixing the first extract and the second extract to obtain the snow pear extract for cigarettes.

As a further technical scheme, the dehydration treatment in the step A is carried out until the moisture content in the obtained snow pear treated substance is less than or equal to 2 percent.

As a further technical scheme, the dosage of the pretreating agent in the step A is 2-5% of the mass of the snow pear.

As a further technical scheme, in the step B, C, the leaching temperature is 45-60 ℃, and the leaching time is 1-1.5 hours.

As a further technical scheme, the concentration in the step B is carried out until the relative density is 1.2720-1.2880.

As a further technical scheme, the concentration in the step C is carried out until the relative density is 1.2720-1.2880.

According to a further technical scheme, the using amount of the ethanol is 3-4 times of the quality of the snow pear pretreatment, and the using amount of the ethyl propionate is 3-4 times of the quality of the snow pear pretreatment.

As a further technical scheme, in the step D, the mass ratio of the first extract to the second extract is 1: 1 and mixing.

The working principle and the beneficial effects of the invention are as follows:

1. according to the invention, the pretreatment agent and the snow pear are pulped and then dehydrated to obtain the snow pear pretreatment substance, and then the snow pear pretreatment substance is extracted, wherein the ascorbic acid palmitate and the sorbitol in the pretreatment agent are compatible with each other, so that the extraction rate of the tobacco yellow pear extract is obviously improved, the content of the flavonoid compounds in the tobacco yellow pear extract is also obviously improved, and the problems of low content and low extraction rate of the flavonoid compounds in the snow pear extract obtained by the extraction method in the prior art are effectively solved.

2. According to the invention, through optimizing and improving the preparation method, the temperature of each step is controlled to be in a low-temperature state within 60 ℃, so that the cracking reaction of aroma components in the snow pears at high temperature is avoided, the aroma in the snow pears can be completely reserved, the prepared snow pear extract for cigarettes has few impurities and no miscellaneous gas after combustion, the prepared snow pear extract for cigarettes has sweet and sour aroma, and when the prepared snow pear extract for cigarettes is added into tobacco shreds, the dry feeling and aroma of the oral cavity are obviously improved, and the miscellaneous gas and throat stimulation of the tobacco shreds are improved to a certain extent, so that the snow pear extract for cigarettes is suitable for being used as an essence perfume for cigarettes.

3. According to the preparation method of the cigarette snow pear extract, dehydration treatment is carried out firstly, water content is controlled to be below 2%, then extraction treatment is carried out, the water content of the cigarette snow pear extract is reduced, the content of water-soluble non-aroma components in the cigarette snow pear extract is reduced, ethanol with the volume fraction of 60% is used for extraction, compared with the existing production method that 95% ethanol is used for extraction, the extraction efficiency is higher, and meanwhile the problem that when the distillation temperature is higher than 80 ℃ during alcohol separation, various cracking reactions of the aroma components in the snow pear extract are caused, and impurities in products are more is avoided, so that the aroma component content of the cigarette snow pear extract is higher, and the evaluation effect when the cigarette snow pear extract is applied to tobacco shreds is better.

4. According to the preparation method, the extracts obtained by ethanol extraction and ethyl propionate extraction are mixed to obtain the cigarette snow pear extract, so that the prepared cigarette snow pear extract has the head fragrance of snow pears and the natural fragrance of snow pear pulp, and is better in purity, so that the prepared cigarette xu-Hua extract is used in tobacco shreds, the tobacco shreds are full and fine, free of miscellaneous gas and irritation, good in harmony with the tobacco fragrance, and good in mouth moistening effect, and the aftertaste is rich in body fluid and sweet and comfortable.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.