阅读说明：本技术 一种含有牡蛎壳的无毒副作用生物防腐剂及其制备方法 (Oyster shell-containing biological preservative without toxic and side effects and preparation method thereof ) 是由 李�泳 余传明 景占鑫 廖铭能 张兆霞 洪鹏志 于 2020-07-28 设计创作，主要内容包括：本发明公开了一种含有牡蛎壳的无毒副作用生物防腐剂及其制备方法,其中,一种含有牡蛎壳的无毒副作用生物防腐剂,按重量份数计包括如下组分：20-40份的牡蛎壳粉、10-15份的碘酸钙、1-5份的瓜尔豆胶、1-3份的羟甲基纤维素钠、1-3份的乳酸钠、10-20份的助剂、30-60份的淀粉、50-90份的水,所述助剂按重量份数计包括如下组分：10-20份的天然提取物、1-5份的鱼精蛋白、1-10份的壳聚糖、4-6份的抗菌肽、5-7份的琥珀酸、10-15份的乙基己基甘油,本发明通过采用牡蛎壳作为载体,并通过添加适量天然提取物,使得成品的防腐剂在具备良好的防腐抑菌功能的同时,环保无毒副作用,安全性好,防腐效果持久。(The invention discloses an oyster shell-containing biological preservative without toxic or side effect and a preparation method thereof, wherein the oyster shell-containing biological preservative without toxic or side effect comprises the following components in parts by weight: 20-40 parts of oyster shell powder, 10-15 parts of calcium iodate, 1-5 parts of guar gum, 1-3 parts of sodium carboxymethylcellulose, 1-3 parts of sodium lactate, 10-20 parts of an auxiliary agent, 30-60 parts of starch and 50-90 parts of water, wherein the auxiliary agent comprises the following components in parts by weight: 10-20 parts of natural extract, 1-5 parts of protamine, 1-10 parts of chitosan, 4-6 parts of antibacterial peptide, 5-7 parts of succinic acid and 10-15 parts of ethylhexyl glycerol.)

1. The oyster shell-containing biological preservative without toxic or side effect is characterized by comprising the following components in parts by weight: 20-40 parts of oyster shell powder, 10-15 parts of calcium iodate, 1-5 parts of guar gum, 1-3 parts of sodium carboxymethylcellulose, 1-3 parts of sodium lactate, 10-20 parts of an auxiliary agent, 30-60 parts of starch and 50-90 parts of water, wherein the auxiliary agent comprises the following components in parts by weight: 10-20 parts of natural extract, 1-5 parts of protamine, 1-10 parts of chitosan, 4-6 parts of antibacterial peptide, 5-7 parts of succinic acid and 10-15 parts of ethylhexyl glycerol, wherein the natural extract comprises the following components in parts by weight: 1-5 parts of honeysuckle extract and 10-20 parts of water.

2. A preparation method of a biological preservative containing oyster shells and having no toxic or side effect is characterized by comprising the following steps:

s1, putting a proper amount of oyster shell powder, calcium iodate, guar gum, sodium carboxymethylcellulose, sodium lactate and starch into a stirring kettle, adding a proper amount of water, and uniformly stirring to obtain a mixture;

s2, adding a proper amount of auxiliary agent into the mixture, and continuously stirring until the auxiliary agent is completely dissolved;

s3, homogenizing the mixture prepared in the step S2;

s4, spray drying the mixture prepared in the step S3 to obtain a finished product.

3. The method as claimed in claim 2, wherein the oyster shell powder of step S1 is 80-300 mesh, the stirring rate of step S1 is 300-500r/min, the stirring time is 30-60min, and the stirring temperature is 40-60 ℃.

4. The method as claimed in claim 3, wherein the stirring speed in step S2 is 300-500r/min, the stirring time is 10-50min, and the stirring temperature is 40-60 ℃.

5. The method for preparing a biological preservative containing oyster shells without toxic or side effects as claimed in claim 4, wherein the homogenization temperature in step S3 is 20-40 ℃, the pressure is 1-5MPa, and the time is 30-60 min.

6. The method as claimed in claim 5, wherein the spray drying in step S4 has an inlet temperature of 90-100 ℃, an outlet temperature of 60-80 ℃, a stirring speed of 300-.

7. The method for preparing a biological preservative containing oyster shells without toxic and side effects as claimed in claim 6, wherein the adjuvant in step S2 is prepared according to the following steps:

A. weighing appropriate amount of flos Lonicerae extract and water, adding into a stirring kettle, and stirring to obtain natural extract;

B. and D, adding the natural extract prepared in the step A and a proper amount of protamine, chitosan, antibacterial peptide, succinic acid and ethylhexyl glycerol into a stirring kettle, and uniformly stirring.

8. The method for preparing a biological preservative containing oyster shells without toxic and side effects as claimed in claim 7, wherein the honeysuckle extract in the step A is prepared by the following steps: selecting high-quality healthy honeysuckle, cleaning, airing, squeezing to obtain a squeezed liquid, and then concentrating, vacuum drying, crushing and grinding the squeezed liquid to obtain the honeysuckle extract.

Technical Field

The invention relates to the technical field of preservatives, in particular to a biological preservative containing oyster shells and having no toxic or side effect and a preparation method thereof.

Background

Preservatives are a class of food additives that inhibit microbial activity and prevent spoilage of food products. For food to have a certain shelf life, measures must be taken to prevent microbial infection and proliferation. The use of preservatives has proven to be one of the most economical, effective and straightforward ways to achieve the above objectives. Oyster, named as Chinese medicinal material, is the shell of Ostrea gigas, Ostrea gigas or Ostrea gigas of Ostreidae, and can be collected all the year round, and its meat is removed, shell is taken, cleaned and dried in the sun. Oyster shell is traditionally just a medicinal material, and has a long history of application, but most of preservatives in the current market are chemical products, have toxic and side effects, and are lack of biological preservatives taking oyster shell as a raw material.

Disclosure of Invention

The invention aims to provide a biological preservative containing oyster shells and having no toxic or side effect and a preparation method thereof, so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

a biological preservative containing oyster shells and having no toxic or side effect comprises the following components in parts by weight: 20-40 parts of oyster shell powder, 10-15 parts of calcium iodate, 1-5 parts of guar gum, 1-3 parts of sodium carboxymethylcellulose, 1-3 parts of sodium lactate, 10-20 parts of an auxiliary agent, 30-60 parts of starch and 50-90 parts of water, wherein the auxiliary agent comprises the following components in parts by weight: 10-20 parts of natural extract, 1-5 parts of protamine, 1-10 parts of chitosan, 4-6 parts of antibacterial peptide, 5-7 parts of succinic acid and 10-15 parts of ethylhexyl glycerol, wherein the natural extract comprises the following components in parts by weight: 1-5 parts of honeysuckle extract and 10-20 parts of water.

A preparation method of a biological preservative containing oyster shells and having no toxic or side effect comprises the following steps:

s1, putting a proper amount of oyster shell powder, calcium iodate, guar gum, sodium carboxymethylcellulose, sodium lactate and starch into a stirring kettle, adding a proper amount of water, and uniformly stirring to obtain a mixture;

s2, adding a proper amount of auxiliary agent into the mixture, and continuously stirring until the auxiliary agent is completely dissolved;

s3, homogenizing the mixture prepared in the step S2;

s4, spray drying the mixture prepared in the step S3 to obtain a finished product.

As a further scheme of the invention: the oyster shell powder in the step S1 is 80-300 meshes, the stirring speed in the step S1 is 300-500r/min, the stirring time is 30-60min, and the stirring temperature is 40-60 ℃.

As a further scheme of the invention: the stirring speed in the step S2 is 300-500r/min, the stirring time is 10-50min, and the stirring temperature is 40-60 ℃.

As a further scheme of the invention: the homogenizing temperature in the step S3 is 20-40 ℃, the pressure is 1-5MPa, and the time is 30-60 min.

As a further scheme of the invention: the inlet temperature of the spray drying in the step S4 is 90-100 ℃, the outlet temperature is 60-80 ℃, the stirring speed is 360r/min and the time is 240min and 300-.

As a further scheme of the invention: the auxiliary agent in the step S2 is prepared according to the following steps:

A. weighing appropriate amount of flos Lonicerae extract and water, adding into a stirring kettle, and stirring to obtain natural extract;

B. and D, adding the natural extract prepared in the step A and a proper amount of protamine, chitosan, antibacterial peptide, succinic acid and ethylhexyl glycerol into a stirring kettle, and uniformly stirring.

As a further scheme of the invention: the honeysuckle extract in the step A is prepared by the following steps: selecting high-quality healthy honeysuckle, cleaning, airing, squeezing to obtain a squeezed liquid, and then concentrating, vacuum drying, crushing and grinding the squeezed liquid to obtain the honeysuckle extract.

Compared with the prior art, the invention has the beneficial effects that:

by adopting oyster shells as a carrier and adding a proper amount of natural extract, the finished preservative has good preservative and bacteriostatic functions, is environment-friendly, has no toxic or side effect, and has good safety and lasting preservative effect.

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.