CN102604394B - Preparation method of biodegradable emulsion film material - Google Patents
Preparation method of biodegradable emulsion film material Download PDFInfo
- Publication number
- CN102604394B CN102604394B CN 201210072274 CN201210072274A CN102604394B CN 102604394 B CN102604394 B CN 102604394B CN 201210072274 CN201210072274 CN 201210072274 CN 201210072274 A CN201210072274 A CN 201210072274A CN 102604394 B CN102604394 B CN 102604394B
- Authority
- CN
- China
- Prior art keywords
- film material
- emulsion film
- gelatin
- preparation
- emulsion
- 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.)
- Expired - Fee Related
Links
Abstract
The invention discloses a preparation method of a biodegradable emulsion film material. The method comprises the following steps of: (1) preparing gelatin into an aqueous solution, fully hydrating, adjusting the pH of the solution to 5.5-8.0, and adding glycerin in an amount of 10-40 percent of the mass of the gelatin and olive oil in an amount of 5-20 percent of the mass of the gelatin; (2) pre-homogenizing a material obtained in the step (1) with a high-speed disperser at the rotating speed of 6,000-20,000 revolutions per minute for 5 minutes, performing secondary homogenization with a micro-jet nanometer homogenizer under the pressure of 30-150MPa, and circulating for 1-3 times; and (3) degassing a material obtained in the step (2) in vacuum, and drying to obtain the biodegradable emulsion film material. The biodegradable emulsion film material obtained with the method disclosed by the invention contributes to overcoming the defects of water solubility, loose network structure and the like of a protein film, and has higher mechanical property and higher moisture barrier property than the conventional film material.
Description
Technical field
The present invention relates to a kind of biodegradable emulsion film material preparation method.
Background technology
Protection of the environment, economizing on resources becomes the basic strategy that Sustainable development is realized in countries in the world.The environmental pollution that once caused for the human plastics that brought great convenience and the consumption of the energy more and more is subject to extensive concern.Because China's population base is huge, fast increasing economy, the production and consumption amount of non-degradative plastics is explosive growth, has caused serious environmental pollution and a large amount of energy consumptions.Biomacromolecule such as albumen, polysaccharide and grease etc. have good film-forming properties, biocompatibility and biodegradability, are the favorable substitutes of the polyethylene film made of oil by product.
Can effectively intercept scattering and disappearing of moisture, gas and aromatoising substance in the food based on the mould materials of the biomacromolecules such as protein, polysaccharide and grease.Wherein, protein has good trophicity and film-forming properties and enjoys attention.But because the natural water-soluble and wetting ability of protein, protein film has inevitably water-soluble and relatively poor water vapor barrier property.Therefore add sweet oil and prepare the emulsion composite film material in albumen substrate, the effective hydrophobicity of the good filming of conjugated protein and grease is improved the aqueous vapor barrier of mould material.Sweet oil is a kind of high-quality vegetables oil, is described as in the west " liquid golden ".There are some researches show that sweet oil is rich in multiple polyphenols, have the plurality of advantages such as anti-oxidant activity and anticancer anti-cardiovascular and cerebrovascular diseases.
The high pressure microjet is a kind of eco-friendly Physical Processing means.In the sample preparation process, swiftly flowing biological macromolecule solns is fast by having the cavity of certain geometrical shape, material is subject to mechanical force and the corresponding heat effect such as high speed shear, high frequency oscillation, hole effect and convection current bump simultaneously, and the Mechanochemical Effect that causes thus can be induced the variation of biomacromolecule physics, chemistry and textural property.The present invention adopts microjet nanometer homogeneous technology to prepare the film forming liquid of nanoscale, compare with the micro-meter scale emulsion of traditional sonde-type high speed homogenization preparation, has less particle diameter, emulsion is more stable, structure is finer and close after the film forming, reactive force is stronger mutually with albumen for oil phase, and mechanical property and water vapor rejection performance have clear improvement.
Summary of the invention
The object of the invention is to provides a kind of novel biodegradable emulsion film material preparation method for a little less than the poor and physical strength of albuminous membranae material water vapour locking separating performance and the prepared emulsion film material structure of traditional high speed dispersion homogeneous is unstable, the shortcoming of bad mechanical property.The present invention selects the abundant gelatin in source as the matrix of mould material, add sweet oil as the water vapor rejection factor, the emulsion that adopts nanometer microjet homogeneous means to obtain nanoscale prepares emulsion film, obtains having the mould material of stronger water vapor rejection performance and mechanical property and excellent machinability.Compared with prior art, the emulsion film material of microjet preparation has clear superiority and more wide application prospect.
The object of the invention is achieved through the following technical solutions:
A kind of biodegradable emulsion film material preparation method comprises following steps:
(1) the standby one-tenth of the gelatin aqueous solution, fully after the aquation, regulator solution pH is 5.5～8.0, adds the glycerine that is equivalent to gelatin quality 10～40% and the sweet oil that is equivalent to gelatin quality 5～20%;
(2) material that step (1) is obtained is with the pre-homogeneous of high speed dispersor, and rotating speed is 6000～20000rpm, homogeneous 5min; Then adopt microjet nanometer clarifixator to carry out second homogenate, condition is 30～150 MPa, circulates 1～3 time;
(3) material vacuum that obtains of step (2) is degassed, and drying obtains biodegradable emulsion film material.
Described drying preferably places climatic chamber with material, and the temperature of climatic chamber is 20～60 ℃, and relative humidity is 40%.
Described vacuum outgas is degassed 3min under the 0.8MPa in vacuum tightness preferably.
The massfraction of the described aqueous solution of step (1) is 5%.
The biodegradable emulsion film material that the present invention is prepared, has good water vapor rejection performance, can be used as the inner packaging material of food, has biocompatibility, can prevent the loss of moisture and aromatoising substance in the food, can also be as the controlled release carrier of biologically active substance (antioxidant, antiseptic-germicide and nutritional factor).Solved the weak application weakness that waits of the wetting ability of protein film material and physical strength.Add simultaneously activeconstituents, can improve the food added value.
The present invention compared with prior art has the following advantages and beneficial effect:
The one, select gelatin as albumen substrate, improve the added value of agricultural byproducts.Gelatin is a kind of animal protein, through the degraded of thermally denature or physical chemistry and get, because of its cheap price with more easily obtain, has simultaneously good film-forming properties by the collagen in skin, ligament, the tendon, is widely used as mould material; The 2nd, in albumen substrate, add sweet oil, improve the aqueous vapor barrier property of film, prevent moisture and the gaseous interchange of food and external environment, have simultaneously stronger anti-oxidant activity, can prevent to a certain extent that food is oxidized; The 3rd, adopt micro jetting technology to obtain the filming emulsion of nanoscale, obtain the micron level emulsion with traditional sonde-type high speed homogenization and compare, particle diameter is less, has stronger stability, the mould material structure of preparation is tightr, and mechanical property is stronger, and the water vapor rejection performance significantly improves.Novel nanometer micro jetting technology is applied in the emulsion film material preparation, compares with the filming emulsion of traditional high speed dispersion preparation and have more small particle size, stability is better.The present invention controls the microtexture of emulsion film material and then improves its mechanical property and the water vapor rejection performance by the proterties that affects film forming liquid, obtains the better emulsion film material of performance, improves its using value.
The present invention can solve the problem of the biological non-biodegradable of existing polyethylene film material and environmental hazard, and part replaces existing plastics, has very high social benefit.Adopt the nanometer micro jetting technology to prepare water vapor rejection performance and the better emulsion film material of mechanical property, to compare performance more stable with the emulsion film of traditional high speed dispersion preparation, and range of application is more extensive.Emulsion film is as the inner packaging material of food, has good barrier, can prevent the loss of moisture and aromatoising substance in the food, the controlled release carrier that also can be used for biologically active substance (antioxidant, antiseptic-germicide and nutritional factor), play slow releasing function, for the application potential of exploring the biodegradable mould material provides certain thinking.
Embodiment
Below in conjunction with embodiment, the present invention is done further detailed description.
The contriver has carried out in depth creative research and test to the present invention, and many successful embodiment are arranged, and the below enumerates four specific embodiments.
Embodiment 1
The first step gelatin is prepared into 5%(w/w) the aqueous solution, fully regulating pH after the aquation is 8.0, adds the 40%(w/w gelatin) the sweet oil of glycerine and 20% (w/w gelatin);
The material that second step obtains step 1 is with the pre-homogeneous of high speed dispersor, and rotating speed is 6000rpm, and then homogeneous 5min adopts microjet nanometer clarifixator second homogenate, and condition is: 150MPa, 1 circulation;
The 3rd goes on foot degassed 3min under the film forming liquid vacuum tightness 0.8MPa that step 2 is obtained, and measures 45ml film forming liquid and pours in the synthetic glass box, is positioned over 25 ℃, and dry 36h in the climatic chamber of 40%RH obtains the emulsion film material;
Present embodiment also carries out performance test to the emulsion film material that different processing conditions obtain, pre-homogenizing time is respectively 5min, 3min, and second homogenate pressure is respectively 30,70,150 MPa, and cycle index is respectively 1 time and 3 times, other condition is constant, and the result is as shown in table 1.
The pre-processing condition of table 1 is the physicals of 6000rpm, 5min gained emulsion film
By different processing condition gained emulsion film material properties are measured, find the tensile strength of the emulsion film material that the nanometer microjet prepares and the emulsion film that elongation at break prepares apparently higher than high speed dispersion.The physical strength of mould material is along with the increase of the increase of microjet pressure and cycle index and significantly improve.This is because high speed dispersion prepares the filming emulsion of micron level, and the high-shear knock on effect of nanometer micro jetting technology has formed the film forming liquid of Nano grade, and latter's particle diameter is less, and emulsion is more stable, the emulsion film material network structure of preparation is finer and close, and tensile strength and elongation are significantly increased.Compare with the protein film material, the steam transmission coefficient of emulsion film material is reduced to 2.82 E-10 from 5.61 E-10 behind the interpolation sweet oil, and the water vapor rejection performance of emulsion film material significantly improves.And along with microjet pressure increases and the cycle index increase, emulsion particle diameter is less, and the mould material network structure is more fine and close, has increased the path of water molecules, has reduced infiltration rate.Only the emulsion through the pre-homogeneous of high speed dispersion is larger owing to the oil phase particle diameter, and emulsion is unstable, and hydrophobic oil phase is enriched in the surface in the film process, can significantly reduce the water vapor transmittance of mould material equally, even is lower than the emulsion film of some microjet preparation.
Embodiment 2
The first step gelatin is prepared into 5%(w/w) the aqueous solution, fully regulating pH after the aquation is 8.0, adds the 40%(w/w gelatin) the sweet oil of glycerine and 20% (w/w gelatin);
The material that second step obtains step 1 is with the pre-homogeneous of high speed dispersor, and rotating speed is 20000rpm, and then homogeneous 5min adopts microjet nanometer clarifixator second homogenate, and condition is: 150MPa, 1 circulation;
The 3rd goes on foot degassed 3min under the film forming liquid vacuum tightness 0.8MPa that step 2 is obtained, and measures 45ml film forming liquid and pours in the synthetic glass box, is positioned over 25 ℃, and dry 36h in the climatic chamber of 40%RH obtains the emulsion film material;
Present embodiment also carries out performance test to the emulsion film material that different processing conditions obtain, pre-homogenizing time is respectively 5min, 3min, and second homogenate pressure is respectively 30,70,150 MPa, and cycle index is respectively 1 time and 3 times, other condition is constant, and the result is as shown in table 2.
The pre-processing condition of table 2 is the physicals of 20000rpm, 5min gained emulsion film
Found through experiments, the pressure of microjet is similar to embodiment one on the impact of emulsion film material property with cycle index.Under the identical pre-processing condition, the tensile strength of emulsion film material and elongation at break significantly improve along with the increase of microjet pressure.Compare with the sample of identical microjet pressure among the embodiment one, the rotating speed of pre-homogeneous is larger, film forming liquid particle diameter less, and membrane structure is also more stable, and tensile strength is larger.Compare with the control film material, the steam transmission coefficient of emulsion film material significantly reduces.The emulsion film material has strong absorption at the 280nm ultraviolet region, can protect food to avoid the uv irradiating impact.
Embodiment 3
The first step gelatin is prepared into 5% the aqueous solution, and fully regulating pH after the aquation is 8.0, adds 40%(w/w) glycerine and the sweet oil of ratio 5% (w/w gelatin);
Second step carries out pre-homogeneous with the material that step 1 obtains with high speed dispersor, and rotating speed is 6000rpm, homogeneous 3min, and microjet second homogenate then, condition is 70 MPa, 3 circulations;
The material that the 3rd step obtained step 2 is degassed 3min under the 0.8MPa in vacuum tightness, measures the 45mL volume and pours in the synthetic glass box, is positioned over 25 ℃, and dry 36h in the climatic chamber of 40%RH obtains the emulsion film material;
Present embodiment carries out performance test to the emulsion film material that the different ratios oil phase obtains, and content of olive oil is respectively 5%, 10%, 15%, 20%, and other condition is constant, and the result is as shown in table 3.
Mechanical property and the steam breathability energy of table 3 different ratios oil phase emulsion film
Found through experiments, along with the ratio of sweet oil increases, the uv-absorbing of emulsion film material obviously increases, and tensile strength changes to 28.76 from 17.11, and elongation at break also is significantly increased, and this is because sweet oil has increased the snappiness of mould material.In addition, the steam transmission coefficient of emulsion film material drops to 3.48E-10 from 5.61E-10, and the inner oil phase of mould material and albumen interweave closely, have reduced the infiltration rate of water molecules.
Embodiment 4
The first step gelatin is prepared into 5% the aqueous solution, and fully regulating pH after the aquation is 8.0, and adding content is 40%(w/w) glycerine and the sweet oil of content 20% (w/w gelatin);
Second step carries out pre-homogeneous with the material that step 1 obtains with high speed dispersor, and rotating speed is 6000rpm, homogeneous 3min, and microjet second homogenate then, condition is 70 MPa, 3 circulations;
The material that the 3rd step obtained step 2 is degassed 3min under the 0.8MPa in vacuum tightness, measures the 45mL volume and pours in the synthetic glass box, is positioned over 25 ℃, and dry 36h in the climatic chamber of 40%RH obtains the emulsion film material;
Present embodiment carries out performance test to the emulsion film material that different ratios glycerine obtains, and glycerol content is respectively 10%, 20%, 30%, 40%, and other condition is constant, and the result is as shown in table 4.
Mechanical property and the steam breathability energy of table 4 different ratios glycerine emulsion film
Along with the increase of fluidizer glycerol content in the emulsion film material, elongation significantly improves.This mainly is that the adding of softening agent has reduced the interaction between the protein molecular, has softened the rigid structure of film, makes the network structure of film inside become loose, has increased the flowability of chain.Can not form the complete film material when adding without glycerine.Glycerine contains more oh group, has stronger water-absorbent, although the mould material thickness that makes slightly increases, the wetting ability of itself causes the steam transmission coefficient of mould material to increase along with glycerol content and slightly is improved.
Embodiment 5
The first step gelatin is prepared into 5% the aqueous solution, and fully regulating pH after the aquation is 8.0, adds the 40%(w/w gelatin) glycerine and the content sweet oil that is respectively 20% (w/w gelatin);
The material that second step obtains step 1 high speed dispersor 6000rpm pre-treatment 3min, then microjet secondary treatment, condition is 70 MPa, 3 circulations;
The material that the 3rd step obtained step 2 is degassed 3min under the 0.8MPa in vacuum tightness, measures the 45mL volume and pours in the synthetic glass box, places climatic chamber dry, and drying temperature is 20 ℃, and humidity: 40%RH obtains the emulsion film material behind the placement 36h;
Present embodiment carries out performance test to the emulsion film material that different drying temperatures obtain, and temperature is respectively 20,40,60 ℃, and other condition is constant, and the result is as shown in table 5.
The optical property of the different drying temperature emulsion films of table 5, mechanical property and steam breathability energy
| Drying temperature ℃ | Transmittance (280nm) | Tensile strength (MPa) | Elongation at break (%) | Steam transmission coefficient (WVP/g.m -1.s -1.Pa -1) |
| 20 | 2.52± 0.31 | 24.6±1.44 | 54.25±9.22 | 2.60 E-10±2.3 E-11 |
| 40 | 3.56±0.37 | 28.76±2.75 | 68.87±6.28 | 3.48 E-10±6.2 E-11 |
| 60 | 2.80± 0.32 | 17.36±1.44 | 40.13±9.22 | 3.25 E-10±2.3 E-11 |
Test as can be known, along with the emulsion film drying temperature increases, the tensile strength of mould material is consistent with elongation at break and the variation of steam transmission coefficient, increases afterwards first and falls.This may be relevant with the stability of emulsion film material, and temperature raises and is conducive to the moisture evaporation, fast filming, and the mobility of oil phase is relatively low, and membrane structure is comparatively even.But when temperature was increased to 60 ℃, some composition of emulsion film migration or evaporation were occurred by temperatures involved, and mechanical property significantly descends.
Embodiment 6
The first step gelatin is prepared into 5% the aqueous solution, and fully regulating pH after the aquation is 8.0, adds the 40%(w/w gelatin) glycerine and the content sweet oil that is respectively 20% (w/w gelatin);
The material that second step obtains step 1 high speed dispersor 6000rpm pre-treatment 3min, then microjet secondary treatment, condition is 70 MPa, 3 circulations;
The material that the 3rd step obtained step 2 is degassed 3min under the 0.8MPa in vacuum tightness, measures the 45mL volume and pours in the synthetic glass box, places climatic chamber dry, 40 ℃ of drying temperatures, and humidity: 40%RH obtains the emulsion film material;
Present embodiment carries out performance test to the emulsion film material that obtains under the condition of different pH, and pH is respectively 5.5,6.5,8, and other condition is constant, and the result is as shown in table 6.
The optical property of the different pH emulsion films of table 6, mechanical property and steam breathability energy
| PH | Transmittance (280nm) | Tensile strength (MPa) | Elongation at break (%) | Steam transmission coefficient (WVP/g.m -1.s -1.Pa -1) |
| 5.5 | 3.25± 0.12 | 21.36±1.54 | 57.23±9.22 | 4.62 E-10 ±2.3 E-11 |
| 6.5 | 3.34±0.35 | 24.21±1.56 | 64.03± 5.85 | 3.95 E-10 ±6.4 E-11 |
| 8.0 | 3.56±0.37 | 28.76±2.75 | 68.87±6.28 | 3.48 E-10 ±6.3 E-11 |
By experiment data analysis, the tensile strength of emulsion film material, elongation at break raise with pH to be increased, reason is pH to the vital role that is formed with of the dissolving of gelatin and film, the amino-acid residue of gelatin is with positive and negative charge, under condition of different pH, can demonstrate the surface charge of opposed polarity, very large on the solvability impact.The performance of the film under the alkaline condition is better than the performance of the film under the acidic conditions.
Annotate: for above data, the mechanical property of emulsion film is to adopt texture analyser TA-XT2i to measure according to ASTM D638-91 standard, and rate of extension is 2mm/s, and the water vapor transmittance of emulsion film is the canonical measure according to ASTM E96-95.
Claims (4)
1. a biodegradable emulsion film material preparation method is characterized in that, comprises following steps:
(1) the standby one-tenth of the gelatin aqueous solution, fully after the aquation, regulator solution pH is 5.5～8.0, adds the glycerine that is equivalent to gelatin quality 10～40% and the sweet oil that is equivalent to gelatin quality 5～20%;
(2) material that step (1) is obtained is with the pre-homogeneous of high speed dispersor, and rotating speed is 6000～20000rpm, homogeneous 5min; Then adopt microjet nanometer clarifixator to carry out second homogenate, condition is 30～150 MPa, circulates 1～3 time;
(3) material vacuum that obtains of step (2) is degassed, and drying obtains biodegradable emulsion film material.
2. preparation method according to claim 1 is characterized in that, described drying is that material is placed climatic chamber, and the temperature of climatic chamber is 20～60 ℃, and relative humidity is 40%.
3. preparation method according to claim 1 and 2 is characterized in that, described vacuum outgas is to be degassed 3min under the 0.8MPa in vacuum tightness.
4. preparation method according to claim 1 and 2 is characterized in that, the massfraction of the described aqueous solution of step (1) is 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210072274 CN102604394B (en) | 2012-03-19 | 2012-03-19 | Preparation method of biodegradable emulsion film material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210072274 CN102604394B (en) | 2012-03-19 | 2012-03-19 | Preparation method of biodegradable emulsion film material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102604394A CN102604394A (en) | 2012-07-25 |
| CN102604394B true CN102604394B (en) | 2013-10-30 |
Family
ID=46522191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210072274 Expired - Fee Related CN102604394B (en) | 2012-03-19 | 2012-03-19 | Preparation method of biodegradable emulsion film material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102604394B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106189271B (en) * | 2016-08-08 | 2019-04-26 | 惠州学院 | A kind of preparation method of edible environmental-friendly lotion membrane material |
| CN106275828A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of packaging material for food and application thereof easily |
| CN106279730A (en) * | 2016-08-08 | 2017-01-04 | 惠州学院 | A kind of raw meat preservative film and using method thereof |
| CN111423604B (en) * | 2020-03-20 | 2022-05-20 | 江西师范大学 | Preparation method of ultrasonic modified composite gelatin film |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101811596B (en) * | 2009-09-18 | 2011-07-20 | 江南大学 | Edible polysaccharide-protein composite packaging film and preparation method thereof |
| CN101878904B (en) * | 2010-06-23 | 2013-01-09 | 华南理工大学 | Method for producing whey protein gel-like emulsion |
-
2012
- 2012-03-19 CN CN 201210072274 patent/CN102604394B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN102604394A (en) | 2012-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Tarique et al. | Recent developments in sustainable arrowroot (Maranta arundinacea Linn) starch biopolymers, fibres, biopolymer composites and their potential industrial applications: A review | |
| Shojaeiarani et al. | Cellulose nanocrystal based composites: A review | |
| Arrieta et al. | Recovery of yerba mate (Ilex paraguariensis) residue for the development of PLA-based bionanocomposite films | |
| Shankar et al. | Effect of lignin on water vapor barrier, mechanical, and structural properties of agar/lignin composite films | |
| Wang et al. | Development and characterization of bacterial cellulose reinforced biocomposite films based on protein from buckwheat distiller’s dried grains | |
| Guidara et al. | Effects of extraction procedures and plasticizer concentration on the optical, thermal, structural and antioxidant properties of novel ulvan films | |
| Jozala et al. | Bacterial nanocellulose production and application: a 10-year overview | |
| Xiang et al. | Preparation of konjac glucomannan based films reinforced with nanoparticles and its effect on cherry tomatoes preservation | |
| Chaireh et al. | Novel composite foam made from starch and water hyacinth with beeswax coating for food packaging applications | |
| CN101372536B (en) | Preparation of bacteria cellulose food fresh keeping membrane | |
| CN102604394B (en) | Preparation method of biodegradable emulsion film material | |
| Ning et al. | Preparation and characterization of black biodegradable mulch films from multiple biomass materials | |
| Lin et al. | Thermomechanically micronized sugar beet pulp: Dissociation mechanism, physicochemical characteristics, and emulsifying properties | |
| CN110452507A (en) | A kind of high barrier high strength slim whole life cycle design and preparation method | |
| CN108837779B (en) | Ion-crosslinked lignin microcapsule and preparation method thereof | |
| Júnior et al. | Improving the mechanical properties and thermal stability of sodium alginate/hydrolyzed collagen films through the incorporation of SiO2 | |
| US11760852B2 (en) | Protein/polysaccharide/essential oil nanometer edible film and preparation method therefor | |
| Zhang et al. | Pectin-nanolignin composite films with water resistance, UV resistance, and antibacterial activity | |
| Sodeinde et al. | Cellulose isolated from Delonixregia pods: Characterisation and application in the encapsulation of vitamin A | |
| CN106389137A (en) | Flaxseed oil liposome and preparation and applications thereof | |
| Jantasrirad et al. | Effect of filler and sonication time on the performance of brown alga (Sargassum plagiophyllum) filled cassava starch biocomposites | |
| CN105153660A (en) | Full-biodegradation bacterial cellulose/polylactic acid composite material and preparing method thereof | |
| Benini et al. | PHBV/cellulose nanofibrils composites obtained by solution casting and electrospinning process | |
| Qin et al. | Feasibility of bionanocomposite films fabricated using capsicum leaf protein and cellulose nanofibers | |
| Guo et al. | Bio-based films with high antioxidant and improved water-resistant properties from cellulose nanofibres and lignin nanoparticles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20190319 |