CN110973077A - Silver-containing silk and preparation method thereof - Google Patents
Silver-containing silk and preparation method thereof Download PDFInfo
- Publication number
- CN110973077A CN110973077A CN201911341515.7A CN201911341515A CN110973077A CN 110973077 A CN110973077 A CN 110973077A CN 201911341515 A CN201911341515 A CN 201911341515A CN 110973077 A CN110973077 A CN 110973077A
- Authority
- CN
- China
- Prior art keywords
- silver
- silkworms
- silk
- preparation
- containing silk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New breeds of animals
- A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
- A01K67/04—Silkworms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K10/00—Animal feeding-stuffs
- A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K20/00—Accessory food factors for animal feeding-stuffs
- A23K20/20—Inorganic substances, e.g. oligoelements
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K40/00—Shaping or working-up of animal feeding-stuffs
- A23K40/30—Shaping or working-up of animal feeding-stuffs by encapsulating; by coating
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23K—FODDER
- A23K50/00—Feeding-stuffs specially adapted for particular animals
- A23K50/90—Feeding-stuffs specially adapted for particular animals for insects, e.g. bees or silkworms
Abstract
The invention relates to the technical field of silk preparation, and particularly relates to silver-containing silk and a preparation method thereof. The preparation method of the silver-containing silk comprises the following steps: and coating the nano silver powder dispersion liquid on the surface of the mulberry leaves, airing, feeding the silkworms, and feeding the silkworms from four ages until the silkworms are cocooned to obtain the silver-containing silk. The method selects silkworms of four-instar silkworms, the silk glands of the silkworms of the four instar silkworms develop gradually and mature more, more silkworms are eaten, and after the mulberry leaves coated with the nano silver powder on the surfaces are digested, more nano silver can enter the silk glands, and the silver-containing silk can be obtained after cocooning. The results of the examples show that the silver content of the silk prepared by the invention can reach 15ppm to 100 ppm.
Description
Technical Field
The invention relates to the technical field of silk preparation, and particularly relates to silver-containing silk and a preparation method thereof.
Background
Silk is a continuous long fiber, also called natural silk, which is formed by coagulation of a silk liquid secreted by a mature silkworm during cocooning, and is widely applied to the aspects of clothing, medicines, cosmetics, health-care foods and the like. The silver is doped into the silk, so that the electrical conductivity, the thermal conductivity or the antibacterial property of the silk can be improved, and the commercial value of the silk is further improved.
Chinese patent application No. 201810963940.9 discloses a preparation method of a facial mask base material with modified antibacterial silk as a substrate, which comprises the steps of processing with ultrasonic waves and a vegetable protein stabilizer, embedding nano silver into mulberry leaves, feeding silkworms, and directly combining nano silver particles into fibroin, thereby obtaining silver-containing silk, wherein the preparation steps are complicated due to the fact that the stabilizer is used and ultrasonic processing is matched.
Disclosure of Invention
The invention aims to provide silver-containing silk and a preparation method thereof.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a preparation method of silver-containing silk, which comprises the following steps:
and coating the nano silver powder dispersion liquid on the surface of the mulberry leaves, airing, feeding the silkworms, and feeding the silkworms from four ages until the silkworms are cocooned to obtain the silver-containing silk.
Preferably, the mass concentration of the nano silver powder in the nano silver powder dispersion liquid is 1-5 g/L.
Preferably, the nano silver powder dispersion liquid further comprises an antioxidant, and the antioxidant is vitamin C, glucose or glycerol.
Preferably, the mass of the antioxidant is 1-5% of that of the nano silver powder.
Preferably, per 100cm2The mulberry leaves are coated with 0.1-0.2 g of nano silver powder dispersion liquid.
Preferably, the feeding amount of each silkworm is 60-100 g of mulberry leaves every day until the silkworm cocoons.
Preferably, the silkworm is a Chuanshan x Shushui variety.
The invention provides the silver-containing silk prepared by the preparation method in the scheme.
Preferably, the content of silver in the silver-containing silk is 15ppm to 100 ppm.
The invention provides a preparation method of silver-containing silk, which comprises the following steps: and coating the nano silver powder dispersion liquid on the surface of the mulberry leaves, airing, feeding the silkworms, and feeding the silkworms from four ages until the silkworms are cocooned to obtain the silver-containing silk. The method selects silkworms of four-instar silkworms, the silk glands of the silkworms of the four instar silkworms develop gradually and mature more, more silkworms are eaten, and after the mulberry leaves coated with the nano silver powder on the surfaces are digested, more nano silver can enter the silk glands, and the silver-containing silk can be obtained after cocooning. The results of the examples show that the silver content of the silk prepared by the invention can reach 15ppm to 100 ppm.
The preparation method of the silver-containing silk is simple, and the silver-containing silk with potential commercial value can be obtained.
Detailed Description
The invention provides a preparation method of silver-containing silk, which comprises the following steps:
and coating the nano silver powder dispersion liquid on the surface of the mulberry leaves, airing, feeding the silkworms, and feeding the silkworms from four ages until the silkworms are cocooned to obtain the silver-containing silk.
In the present invention, the starting materials used are all commercially available products well known in the art, unless otherwise specified.
In the invention, the nano silver powder dispersion liquid is preferably obtained by adding nano silver powder into water and performing ultrasonic dispersion. In the invention, the mass concentration of the nano silver powder in the nano silver powder dispersion liquid is preferably 1-5 g/L; the nano silver powder dispersion liquid preferably further comprises an antioxidant, and the antioxidant is preferably vitamin C, glucose or glycerol. In the invention, the mass of the antioxidant is preferably 1-5% of that of the nano silver powder. In the present invention, the antioxidant functions to prevent the nano silver from being oxidized. When the nano silver solution further comprises an antioxidant, the nano silver powder and the antioxidant are preferably added into water to be subjected to ultrasonic dispersion for 1-3 hours, so that the nano silver powder dispersion liquid is obtained. The power of the ultrasound is not particularly required by the present invention and may be any known in the art. The nano silver powder of the invention does not additionally add other chemical substances, and can avoid the adverse effect on silkworms.
After the nano silver powder dispersion liquid is obtained, the nano silver powder dispersion liquid is coated on the surface of the mulberry leaf. In the present invention, the coating is preferably performed by spraying, per 100cm2The mulberry leaves are preferably coated with 0.1-0.2 gAnd (3) a nano silver powder dispersion liquid.
After coating, the coated mulberry leaves are dried in the air, and are fed to silkworms, and the silkworms are fed from four ages until cocooning, so that the silver-containing silk is obtained. In the present invention, the airing is preferably room-temperature airing. The feeding amount of each silkworm is preferably 60-100 g of mulberry leaves every day until the silkworm cocoons. The method has no special requirements on the specific variety of the silkworm, and in the embodiment of the invention, the silkworm of Chuanshan multiplied by Shushui variety is selected.
The method selects silkworms of four-instar silkworms, silkglands of the silkworms of the four instar silkworms develop gradually and mature more, and eat more, and after the mulberry leaves coated with the nano silver powder on the surfaces are digested, more nano silver can enter the silkglands, and the silver-containing silk can be obtained after cocooning.
The invention provides the silver-containing silk prepared by the preparation method in the scheme. The content of silver in the silver-containing silk can reach 15ppm to 100 ppm.
The silver-containing silk and the preparation method thereof provided by the present invention will be described in detail with reference to the following examples, which should not be construed as limiting the scope of the present invention.
Example 1
Weighing 1g of commercially available nano silver powder and 0.01g of vitamin C, adding into 1L of water for ultrasonic dispersion for 1.5h, and after the ultrasonic dispersion is finished, filling the dispersion into a 200mL spray can, wherein the volume per 100cm2Spraying 0.1g of the dispersion liquid on the mulberry leaves, drying the mulberry leaves at room temperature after spraying, feeding 60g of the dispersion liquid to each silkworm from the fourth instar silkworm every day until cocooning, and obtaining the silver-containing silk.
Silver content was measured at different points on the inner and outer walls of a certain cocoon using a hand-held heavy metal analyzer (ninton XL3t hand-held alloy analyzer), and the measurement results are shown in table 1.
Table 1 example 1 silk silver content
Example 2
Weighing 1g of commercially available nano silver powder and 0.01g of glucose, adding into 1L of water for ultrasonic dispersion for 2.0h, and after the ultrasonic dispersion is finished, filling the dispersion into a 200mL spray can, wherein the volume per 100cm2Spraying 0.1g of the dispersion liquid on the mulberry leaves, drying the mulberry leaves at room temperature after spraying, and feeding the mulberry leaves by 80g per silkworm every day from four-year-old silkworms until cocoons are formed.
Silver content was measured at different points on the inner and outer walls of a certain cocoon using a hand-held heavy metal analyzer (ninton XL3t hand-held alloy analyzer), and the measurement results are shown in table 2.
Table 2 example 2 silk silver content
Example 3
Weighing commercially available nano silver powder 2g and glucose 0.03g, adding into 1L water for ultrasonic dispersion for 3.0h, and after ultrasonic treatment, putting the dispersion into a 200mL spray can at a volume of per 100cm2Spraying 0.2g of the dispersion liquid on the mulberry leaves, drying the mulberry leaves at room temperature after spraying, and feeding 70g of the dispersion liquid to each silkworm every day from the fourth instar silkworms until cocoons are formed. Silver content was measured at different points on the inner and outer walls of a certain cocoon using a hand-held heavy metal analyzer (ninton XL3t hand-held alloy analyzer), and the measurement results are shown in table 3.
Table 3 example 3 silk silver content
According to the embodiment, the silver content of the silk prepared by the invention can reach 15 ppm-100 ppm.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The preparation method of the silver-containing silk is characterized by comprising the following steps:
and coating the nano silver powder dispersion liquid on the surface of the mulberry leaves, airing, feeding the silkworms, and feeding the silkworms from four ages until the silkworms are cocooned to obtain the silver-containing silk.
2. The method according to claim 1, wherein the mass concentration of the silver nanoparticles in the silver nanoparticle dispersion is 1 to 5 g/L.
3. The method according to claim 1, wherein the nano silver powder dispersion further comprises an antioxidant, and the antioxidant is vitamin C, glucose or glycerol.
4. The preparation method according to claim 3, wherein the antioxidant accounts for 1-5% of the mass of the nano silver powder.
5. The method according to any one of claims 1 to 4, wherein the concentration of the surfactant per 100cm is controlled2The mulberry leaves are coated with 0.1-0.2 g of nano silver powder dispersion liquid.
6. The method of claim 1, wherein each silkworm is fed with 60 to 100g of mulberry leaves per day until the silkworm becomes cocooned.
7. The method of claim 1, wherein the silkworm is a Sichuan mountain variety.
8. Silver-containing silk prepared by the preparation method of any one of claims 1 to 7.
9. The silver-containing silk according to claim 8, wherein the silver content in the silver-containing silk is 15ppm to 100 ppm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911341515.7A CN110973077A (en) | 2019-12-24 | 2019-12-24 | Silver-containing silk and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911341515.7A CN110973077A (en) | 2019-12-24 | 2019-12-24 | Silver-containing silk and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110973077A true CN110973077A (en) | 2020-04-10 |
Family
ID=70075758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911341515.7A Pending CN110973077A (en) | 2019-12-24 | 2019-12-24 | Silver-containing silk and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110973077A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388947A (en) * | 2021-07-20 | 2021-09-14 | 江苏华佳丝绸股份有限公司 | Antibacterial and antistatic silk-vinegar interwoven fabric and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362029A (en) * | 2001-01-02 | 2002-08-07 | 成都天友发展有限公司 | Production process of dewatered mulberry leaf |
| CN107974726A (en) * | 2017-12-12 | 2018-05-01 | 南通大学 | A kind of preparation method of nano silver silk antibacterial composite fibers |
| CN109183172A (en) * | 2018-08-22 | 2019-01-11 | 浙江理工大学 | It is a kind of to be modified anti bacteria natural silk as the preparation method of the face mask substrate material of substrate |
-
2019
- 2019-12-24 CN CN201911341515.7A patent/CN110973077A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1362029A (en) * | 2001-01-02 | 2002-08-07 | 成都天友发展有限公司 | Production process of dewatered mulberry leaf |
| CN107974726A (en) * | 2017-12-12 | 2018-05-01 | 南通大学 | A kind of preparation method of nano silver silk antibacterial composite fibers |
| CN109183172A (en) * | 2018-08-22 | 2019-01-11 | 浙江理工大学 | It is a kind of to be modified anti bacteria natural silk as the preparation method of the face mask substrate material of substrate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113388947A (en) * | 2021-07-20 | 2021-09-14 | 江苏华佳丝绸股份有限公司 | Antibacterial and antistatic silk-vinegar interwoven fabric and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2006273841B2 (en) | Uses of sporopollenin | |
| CN103614240B (en) | Production method of Abelmoschus manihot essential oil | |
| JP2008179629A (en) | Cosmetic sheet | |
| Nemazifard et al. | Physical, mechanical, water binding, and antioxidant properties of cellulose dispersions and cellulose film incorporated with pomegranate seed extract | |
| CN104190411A (en) | Water processing device | |
| CN110973077A (en) | Silver-containing silk and preparation method thereof | |
| CN106399437B (en) | Preparation method of small water turtle polypeptide and small water turtle polypeptide mask | |
| CN105838503A (en) | Slow aroma release type zein microcapsules and preparing method thereof | |
| Rodríguez-Sánchez et al. | Electrospinning of ultra-thin membranes with incorporation of antimicrobial agents for applications in active packaging: a review | |
| CN103030979A (en) | Collagen antibacterial membrane containing cinnamon essential oil and preparation method of collagen antibacterial membrane | |
| CN105536656B (en) | Friable capsules for use in tobacco products, method for the production thereof and use thereof | |
| JP5148830B2 (en) | How to improve silk | |
| El-Khateeb et al. | Eco-friendly synthesis of selenium and zinc nanoparticles with biocompatible sargassum latifolium algae extract in preservation of edible oils | |
| KR101629650B1 (en) | Toothbrush filament with a heat-sensitive material and toothbrush using thereof | |
| KR20110055126A (en) | The preparing method of starfish nanoparticle using pectin, and the product | |
| Khoei et al. | Effect of hyperthermia and triblock copolymeric nanoparticles as quercetin carrier on DU145 prostate cancer cells | |
| Zhou et al. | Preparation, characterization, and in vitro antioxidant activity of pH-sensitive resveratrol microcapsule in simulated intestinal fluids | |
| KR100865769B1 (en) | Preparation methods of nano-metal colloidals and their applied products | |
| CN108186381B (en) | A method of exciting zinc active ion in cosmetics | |
| CN104928078A (en) | Amino-acid gold foil soap production method | |
| Sumithra et al. | Morphological change of silver nanoparticles by the effect of synthesis parameters | |
| KR102339427B1 (en) | Biodegradable seaweed film coated with beeswax and the process of manufacture thereof | |
| CN106758443B (en) | A kind of ginkgo leaf edible packing paper of nontoxic high flavones content and preparation method thereof | |
| CN107778724A (en) | A kind of agalloch eaglewood seed extract and its production and use | |
| CN105997598A (en) | Stripping type O-chitosan quaternary ammonium salt mask and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200410 |