CN116574567A - A kind of environmentally friendly enzyme-added detergent and preparation method thereof - Google Patents

Abstract

The invention discloses an environment-friendly enzyme-added detergent and a preparation method thereof, and relates to the technical field of daily chemical detergent products. The detergent comprises trehalose and sodium gluconate. The sodium gluconate and the trehalose can play a synergistic role when being added into the detergent, can play roles of stabilizing the enzyme activity, resisting scale and increasing the water solubility of the detergent, and can effectively solve the problem of high use condition of the enzyme-added detergent.

Description

A kind of environmentally friendly enzyme-added detergent and preparation method thereof

technical field

The invention relates to the technical field of daily chemical detergent products, in particular to an environment-friendly enzyme-added detergent and a preparation method thereof.

Background technique

With the improvement of residents' consumption level, people's requirements for the quality of life are getting higher and higher, and the problem of washing clothes has attracted more and more attention from consumers. In order to meet people's needs, manufacturers have also successively launched washing machines with various forms and functions. Among them, the non-phosphorus enzyme detergent is loved by consumers because of its environmental protection and good stain removal effect.

Enzymes used in detergents mainly include protease, lipase and cellulase, etc. Their catalysis not only has strong selectivity, but also their activity is affected by factors such as temperature, pH value and compatible chemicals. The working temperature is generally around 50-60°C. If the temperature of the washing water is too high, the enzyme will be inactivated. If the temperature of the washing water is lower than 15°C, the activity of the enzyme will drop rapidly, which will affect the washing effect. Slow, the enzyme cannot function normally, and the temperature requirement is higher when used.

Therefore, it is an urgent problem for those skilled in the art to provide an enzyme-added detergent that is not affected by temperature and maintains enzyme activity.

Contents of the invention

In view of this, the invention provides an environment-friendly enzyme-added detergent and a preparation method thereof.

In order to achieve the above object, the present invention adopts the following technical solutions:

An environment-friendly enzyme-added detergent, which includes trehalose and sodium gluconate.

Further, the detergent is divided into solid enzyme-added detergent or liquid enzyme-added detergent;

In the solid enzyme-added detergent, the weight of trehalose and sodium gluconate is 1 to 3 times the mass of the enzyme preparation;

In the liquid enzyme-added detergent, the weight of trehalose and sodium gluconate is 1.25-3.25 times the mass of the enzyme preparation.

Further, in the solid enzyme-added detergent, the weight ratio of trehalose to sodium gluconate is 1:1-5; in the liquid enzyme-added detergent, the weight ratio of trehalose to sodium gluconate is 1:1 ~10.

Further, the preparation of the solid enzyme-added detergent comprises the following steps:

The formula amount of trehalose, sodium gluconate and enzyme preparation is uniformly mixed, and the solid mixture is obtained after spray drying, and the solid mixture is mixed with the solid detergent.

Further, the solid mixture is 1.5 parts by weight;

The solid detergent is: 40 parts of sodium dodecylbenzenesulfonate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of sodium carbonate, and 18.5 parts of sodium sulfate.

Further, the preparation of the liquid enzyme-added detergent comprises the following steps:

First prepare the buffer system of gluconic acid and sodium gluconate, mix with the enzyme preparation evenly, then add trehalose and mix evenly to obtain a liquid mixture, and mix the liquid mixture with the liquid detergent.

Further, in the buffer system of gluconic acid and sodium gluconate, the pH is 6.5-7.5, the molar concentration of sodium gluconate is 1-3 mol/L, and the molar ratio of gluconic acid and sodium gluconate is 1:20-30.

Further, the liquid mixture is 2.5 parts by weight;

The liquid detergent comprises: 33 parts of linear alkylbenzene sulfonate sodium, 10 parts of fatty alcohol polyoxyethylene ether, 15 parts of sodium sulfate, 5 parts of alkyl glycoside, and 34.5 parts of demineralized water.

It can be seen from the above-mentioned technical solutions that, compared with the prior art, the present invention discloses an environmentally friendly enzyme-added detergent and a preparation method thereof. Trehalose is a safe and stable natural disaccharide that exists in many available Edible animals, plants and microorganisms. It has been found through research that exogenous trehalose has an anti-stress protective effect, has a non-specific protective effect on a variety of biologically active substances, and can well protect the stability of biologically active substances in a retrograde environment. Sodium gluconate has a strong chelating ability, and can form chelates with metal ions such as Ca ²⁺ and Mg ²⁺ in water. It can be degraded quickly and completely through ordinary biochemical treatment. As a scale remover, it can achieve good anti-scale effect, and has a certain protective effect on enzyme activity. Adding sodium gluconate and trehalose to detergents can play a synergistic effect, stabilize enzyme activity, resist scale and increase the water solubility of detergents, and can effectively solve the problem of high use conditions for enzyme-added detergents.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 accompanying drawing is the anti-scaling effect test chart of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

1. Embodiment 1-5 is the protective effect of trehalose and sodium gluconate on solid enzyme activity

Preparation of solid enzyme-free detergent, uniformly mix 40kg of sodium dodecylbenzenesulfonate, 10kg of fatty alcohol polyoxyethylene ether, 30kg of sodium carbonate, and 18.5kg of sodium sulfate;

Commercially available alkaline lipase enzyme solution for detergents, the enzyme activity is 150000U/mL. Add trehalose and sodium gluconate according to Table 1 and mix evenly, spray dry (inlet air temperature is 170°C, outlet air temperature is 80°C, material collection temperature is 60°C) and mix evenly with solid enzyme-free detergent. Dissolve Comparative Example 1 and Examples 1 to 6 at 5°C, 35°C, and 85°C respectively, and measure the enzyme activity after 20 minutes. The results of the enzyme activity assay are shown in Table 2.

The addition amount of table 1 trehalose and sodium gluconate in solid detergent

Table 2 Enzyme activity assay results

Compared with Comparative Example 1, after the addition of trehalose and sodium gluconate, the enzyme activity remained better, and it was better than adding trehalose or sodium gluconate alone, indicating that the two have a synergistic effect on maintaining enzyme activity.

2. Examples 7-11 are the protective effects of trehalose and sodium gluconate on liquid enzyme activity

Preparation of liquid detergent: uniformly mix 33 kg of sodium linear alkylbenzene sulfonate, 10 kg of fatty alcohol polyoxyethylene ether, 15 kg of sodium sulfate, 5 kg of alkyl glycoside, and 34.5 kg of demineralized water;

Commercially available alkaline lipase enzyme solution, the enzyme activity is 150000U/mL. According to Table 3, the gluconic acid and sodium gluconate buffer solution was mixed evenly with the liquid detergent, then added trehalose, mixed evenly, and finally mixed evenly with the enzyme-free liquid detergent. Dissolve Comparative Example 2 and Examples 7-11 at 5°C, 30°C, and 85°C respectively, and measure the enzyme activity after 20 minutes. The results of the enzyme activity assay are shown in Table 4.

Table 3 The amount of trehalose and sodium gluconate in liquid detergent

Note: The concentration of gluconic acid and sodium gluconate in the gluconic acid buffer solution is 2mol/L, and the molar ratio of gluconic acid and sodium gluconate is 1:25.

Table 4 enzyme activity assay results

Compared with Comparative Example 2, after adding trehalose, gluconic acid and sodium gluconate buffer solution, the enzyme activity was maintained better, and it was better than adding trehalose or sodium gluconate alone, indicating that the two had a synergistic effect on maintaining enzyme activity. synergistic effect.

3. Anti-scaling effect test

Take Comparative Example 1 and Example 4 respectively in a 1L triangular flask, and dissolve them with tap water from different places (tap water in Yanzhuang Village, Pingyuan County, tap water in Xiyuan District, Pingyuan County), heat at 50°C, and observe the scale phenomenon on the inner wall of the triangular flask. After scale appears, pour out the detergent in the bottle and observe the phenomenon of scaling on the wall of the bottle. The results are shown in Figure 1.

It can be seen from Figure 1 that the scale produced in Example 4 is significantly less than that produced in Comparative Example 1, indicating that adding trehalose and sodium gluconate to the detergent can effectively remove scale, and the inner wall of the machine wash is not easy to deposit scale.

4. Decontamination ability test

Unless otherwise stated, only distilled or deionized water or water of equivalent purity, milk, and soybean oil were used in the analysis.

1) Instruments and equipment

Hair dryer, basin, beaker, electronic balance

2) Artificial dirt

Prepare three identical pieces of clothing, pour milk and soybean oil on the two pieces of clothing respectively (pour it into two parts of the same piece of clothing, keep the same amount), then dry it with a blower, and wash it by hand with the hands according to the embodiment after half an hour. Scrubbing was performed with Examples 4 and 10. (Washing temperatures are 5°C, 35°C and 85°C)

3) detergent performance evaluation, see Table 5;

Table 5 Detergent performance evaluation table

performance level keep score dirt residue 5 +1 Invisible to the naked eye, same as the control group 4 0 barely visible to the naked eye 3 -1 slightly seen 2 -2 stains can be seen 1 -3 Obvious stains

4) The decontamination test results are shown in Table 6;

Table 6 decontamination test results

As can be seen from Table 6, the washing effect of Comparative Example 1 is poor at 5°C, 35°C and 85°C, the washing effect of Comparative Example 2 is the best at 35°C, and the washing effect is poor at 85°C. Example 10 has better washing effects at three temperatures. It shows that adding trehalose and sodium gluconate to detergent can play a synergistic role in protecting enzyme activity, and the washing effect is better at low, medium and high temperatures.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. an environment-friendly enzyme-added detergent is characterized in that trehalose and sodium gluconate are included in the detergent. 2. a kind of environment-friendly enzyme detergent according to claim 1, is characterized in that, described detergent is divided into solid enzyme detergent or liquid enzyme detergent; In the solid enzyme-added detergent, the weight of trehalose and sodium gluconate is 1 to 3 times the mass of the enzyme preparation; In the liquid enzyme-added detergent, the weight of trehalose and sodium gluconate is 1.25-3.25 times the mass of the enzyme preparation. 3. A kind of environmentally friendly enzyme-added detergent according to claim 2, characterized in that, in the solid enzyme-added detergent, the weight ratio of trehalose to sodium gluconate is 1:1～5; In the liquid enzyme-added detergent, the weight ratio of trehalose to sodium gluconate is 1:1-10. 4. a kind of environment-friendly enzyme detergent according to claim 3, is characterized in that, the preparation of described solid enzyme detergent comprises the following steps: The formula amount of trehalose, sodium gluconate and enzyme preparation is uniformly mixed, and the solid mixture is obtained after spray drying, and the solid mixture is mixed with the solid detergent. 5. a kind of environment-friendly type enzyme detergent according to claim 4 is characterized in that, described solid mixing agent is 1.5 parts by weight; The solid detergent is: 40 parts of sodium dodecylbenzenesulfonate, 10 parts of fatty alcohol polyoxyethylene ether, 30 parts of sodium carbonate, and 18.5 parts of sodium sulfate. 6. a kind of environment-friendly enzyme detergent according to claim 3, is characterized in that, the preparation of described liquid enzyme detergent comprises the following steps: First prepare the buffer system of gluconic acid and sodium gluconate, mix with the enzyme preparation evenly, then add trehalose and mix evenly to obtain a liquid mixture, and mix the liquid mixture with the liquid detergent. 7. A kind of environment-friendly type enzyme-added detergent according to claim 6, is characterized in that, in the buffer system of described gluconic acid and sodium gluconate, pH6.5～7.5, the molar concentration of sodium gluconate is 1 ~3mol/L, the molar ratio of gluconic acid to sodium gluconate is 1:20~30. 8. a kind of environment-friendly enzyme detergent according to claim 7, is characterized in that, described liquid mixing agent is 2.5 parts by weight; The liquid detergent comprises: 33 parts of linear alkylbenzene sulfonate sodium, 10 parts of fatty alcohol polyoxyethylene ether, 15 parts of sodium sulfate, 5 parts of alkyl glycoside, and 34.5 parts of demineralized water.