阅读说明：本技术 一种通过mvr浓缩器从杏仁脱苦水中回收苦杏仁苷的方法 (Method for recovering amygdalin from almond debitterized water through MVR concentrator ) 是由 薛志强 于 2021-10-12 设计创作，主要内容包括：本发明涉及食品工业技术领域,特别是指一种通过MVR浓缩器从杏仁脱苦水中回收苦杏仁苷的方法。包括以下步骤：(1)备足量含量为0.28％的杏仁脱苦水并加入5‰冰醋酸助剂,重量比为：200:1；暂存于中转罐,温度不得大于75℃；(2)过滤：通过过压滤板框,除步骤(1)中的固体杂质；(3)浓缩：通过MVR浓缩器于75℃温度下,浓缩至比重1.25；(4)包装：分装于吨桶,至冷库保存。通过上述方法MVR浓缩器在以75℃温度下,浓缩至比重1.25,所得浓缩膏含量可达11.03％。(The invention relates to the technical field of food industry, in particular to a method for recovering amygdalin from almond debitterized water by an MVR concentrator. The method comprises the following steps: (1) preparing 0.28 percent of almond debitterized water and adding 5 per mill of glacial acetic acid auxiliary agent, wherein the weight ratio is as follows: 200: 1; temporarily storing in a transfer tank, wherein the temperature is not more than 75 ℃; (2) and (3) filtering: removing solid impurities in the step (1) through a filter pressing plate frame; (3) concentration: concentrating at 75 deg.C by MVR concentrator to specific gravity of 1.25; (4) packaging: and subpackaging in ton barrels, and storing in a refrigeration house. The MVR concentrator is concentrated to the specific gravity of 1.25 at the temperature of 75 ℃ by the method, and the content of the obtained concentrated paste can reach 11.03%.)

1. A method for recovering amygdalin from almond debitterized water by an MVR concentrator is characterized by comprising the following steps:

(1) preparing 0.28% of almond debitterized water and adding a glacial acetic acid auxiliary agent, wherein the weight ratio is as follows: 200: 1; temporarily storing in a transfer tank, wherein the temperature is not more than 75 ℃;

(2) and (3) filtering: removing solid impurities in the step (1) through a filter pressing plate frame;

(3) concentration: concentrating at 75 deg.C by MVR concentrator to specific gravity of 1.25;

(4) packaging: and subpackaging in ton barrels, and storing in a refrigeration house.

2. The method of claim 1 for recovering amygdalin from almond debittering water by MVR concentrator, wherein the step (1) of temporarily storing the almond debittering water in a transfer tank is as follows: is more than 1.5 h.

Technical Field

The invention relates to the technical field of food industry, in particular to a method for recovering amygdalin from almond debitterized water by an MVR concentrator.

Background

The semen Armeniacae amarum is mature seed of Prunus Armeniaca, Prunus sibirica, Prunus northeast, or Prunus armeniaca of Rosaceae. The almond industry focuses on 43-degree distribution of northern latitude in provinces such as Hebei, Liaoning, inner Mongolia, Jilin, Gansu, Shanxi, Shaanxi and the like, apricot kernels are produced in the whole country by about 8-10 ten thousand tons, wherein the yield in the northeast three provinces reaches 6 ten thousand tons, and the plain spring county in Hebei is the biggest bitter almond collecting and distributing land in the whole country.

Besides high nutritive value, bitter apricot kernel has more outstanding medicinal value, and can reduce qi, relieve cough and asthma, moisten intestines and relieve constipation, and also can prevent cardiovascular diseases. Many classic formulas are dominated by bitter almonds: ephedra, almond, gypsum, almond and almond cough-relieving mixture and almond and perilla cough-relieving granules. In addition, amygdalin, the main component of bitter apricot seeds, is also used as an anticancer drug by foreign countries.

The edible almond takes almond fat and protein as nutrient sources, so that medicinal components of amygdalin are wasted, and the debitterized sewage treatment cost is high; the medicinal almond is prepared by feeding almond decoction pieces and extracting amygdalin, and the nutritional ingredients of protein and fat can not be utilized.

Disclosure of Invention

The invention provides a method for recovering amygdalin from almond debitterized water by an MVR concentrator, which solves the problems in the prior art.

The technical scheme of the invention is realized as follows:

a method for recovering amygdalin from almond debitterized water by an MVR concentrator comprises the following steps:

the method is characterized by comprising the following steps:

(1) preparing 0.28 percent of almond debitterized water and adding 5 per mill of glacial acetic acid auxiliary agent, wherein the weight ratio is as follows: temporarily storing the 200:1 in a transfer tank at the temperature of not more than 75 ℃;

(2) and (3) filtering: removing solid impurities in the step (1) through a filter pressing plate frame;

(3) concentration: concentrating at 75 deg.C by MVR concentrator to specific gravity of 1.25;

(4) packaging: and subpackaging in ton barrels, and storing in a refrigeration house.

Preferably, the temporary storage time of the almond debitterized water in the transfer tank in the step (1) is as follows: is more than 1.5 h.

The invention has the beneficial effects that:

the method for recovering amygdalin from almond debitterized water provided by the invention protects amygdalin isomerization by 5 per mill glacial acetic acid auxiliary agent, and concentrates the amygdalin to the specific gravity of 1.25 by combining with an MVR concentrator at the temperature of 75 ℃, and the content of the obtained concentrated paste can reach 11.03%.

Detailed Description

The technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

The invention relates to a method for recovering amygdalin from almond debitterized water by an MVR concentrator, which comprises the following steps:

the method is characterized by comprising the following steps:

(1) preparing 0.28 percent of almond debitterized water and adding 5 per mill of glacial acetic acid auxiliary agent, wherein the weight ratio is as follows: 200: 1; temporarily storing in a transfer tank, wherein the temperature is not more than 75 ℃;

(2) and (3) filtering: removing solid impurities in the step (1) through a filter pressing plate frame;

(3) concentration: concentrating at 75 deg.C by MVR concentrator to specific gravity of 1.25;

(4) packaging: and subpackaging in ton barrels, and storing in a refrigeration house.

Preferably, the temporary storage time of the almond debitterized water in the transfer tank in the step (1) is as follows: is more than 1.5 h.

Solid impurities can be precipitated by adding 5 per mill of glacial acetic acid auxiliary agent into the almond debitterized water and standing.

The invention has the beneficial effects that:

the method for recovering amygdalin from almond debitterized water provided by the invention protects amygdalin isomerization by 5 per mill glacial acetic acid auxiliary agent, and concentrates the amygdalin to the specific gravity of 1.25 by combining with an MVR concentrator at the temperature of 75 ℃, and the content of the obtained concentrated paste can reach 11.03%.

Comparative experiment

The concentration of the concentrated solution is verified by a single-effect concentrator, a double-effect concentrator and an MVR concentrator under the conditions of a steam (160 ℃) heat source and a hot water (75 ℃) heat source, and the experimental results are as follows:

in conclusion, the concentrated paste content concentrated by the MVR concentrator is higher than that of the single-effect concentrator and that of the double-effect concentrator.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.