CN101811596B - Edible polysaccharide-protein composite packaging film and preparation method thereof - Google Patents
Edible polysaccharide-protein composite packaging film and preparation method thereof Download PDFInfo
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Abstract
The invention relates to an edible polysaccharide-protein composite packaging film and a preparation method thereof. Sodium alga acid, sodium carboxymethylcellulose and gelatin are taken as main film forming materials, and a water repellent agent, an antioxygen wheyprotein and a plasticizer glycerin are taken as auxiliary elements to prepare total mixed solution; and the total mixed solution is subjected to microwave crosslinking and coating film forming to prepare the edible polysaccharide-protein composite packaging film. The edible polysaccharide-protein composite packaging film overcomes the defect that a single film has insufficient mechanical properties; the wheyprotein replaces the commonly used antioxygen and nutrition is added; the film is dissolved in water and is conveniently used by customers, and waste pollution is reduced; and the added water repellent agent improves the steam resistance of the edible packaging film and improves the brightness of the film, so the film is more attractive.
Description
Technical field
The invention belongs to food, drug packaging technical field, specifically relate to a kind of edibility polysaccharide-protein composite package film and preparation method thereof.
Background technology
At present, inner packing for condiment, instant drink, commercial a large amount of uses be synthetic plastics, though these plastics have good barrier and processability, also have following problem: (1) most of plastics are difficult for degraded or degradation cycle length causes white pollution; (2) additive in the plastic working is moved in the food, influences food security; (3) the plastics manufacturing is based on oil, has aggravated the energy shock that present oil causes.In view of above problem, people need develop a kind of more environmental protection, safer packing in a hurry.Therefore become the focus of research gradually with the edible packing membrane instead of part synthetic plastics packaging film of easily degraded.Edible film (Edible Films) is a kind of edible material (as polysaccharide, protein, fat etc.) that utilizes, through steps such as mixing, heating, coating, oven dry, form the packing film of functions such as having having of porous network structure is edible, fresh-keeping, easy degraded by the different molecular interphase interaction.Find by retrieval the prior art data, a kind of preparation method of edible instant noodles accessory package pack is disclosed at Chinese patent [CN101096236A], it is characterized in that with the pulullan polysaccharide being film forming agent, sodium alginate and/or sodium carboxymethyl cellulose are secondary film formers, be made into the aqueous system, through the system film, the heat-sealing bag, can, the sterilization and make.But the breaking elongation of film is lower, causes the elasticity of film relatively poor.Disclose a kind of edible packing membrane that is prepared by soybean protein isolate and gelatin and its production and use at Chinese patent [CN1743379A], the edible packing membrane of preparation mainly contains soybean protein, gelatin and glycerine, crosslinking agent, alkaline matter etc.This film has made full use of the advantage of gelatin and soybean protein isolate, and it is less expensive again to make film have certain mechanical strength, is no more than 5% but patent data shows the maximum breaking elongation of film.The preparation method of a kind of gelatin or methylcellulose edible packing film is disclosed at Chinese patent [CN1288024A], its outstanding feature is when giving methylcellulose edible packing membrane heat sealability, is to be coated with the layer of even gelatin again on one deck edible packing film for preparing.But through the surface of microscopic examination film, gelatin forms micelle easily, influences film strength and barrier.
As fully visible, the following problem of ubiquity in the current edible film research and development: (1) mechanical strength deficiency; (2) barrier is relatively poor.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, provide that a kind of energy is water-soluble, mechanical characteristics, edibility polysaccharide-protein composite package film that resistance oxygen is good and preparation method thereof.
Edibility polysaccharide-protein composite package film of the present invention comprises following component: its formula rate is counted by weight:
1～3 part of sodium alginate, 1～2 part of sodium carboxymethyl cellulose, 0.5～1 part in gelatin, 0.1～0.5 part of water-repelling agent, 0.1～0.5 part of oxygen-inhibiting agent lactalbumin, 1～3 part of plasticizer glycerine, 80 parts of deionized waters;
Described water-repelling agent is one or more compounds in sucrose ester, stearic acid, palmitic acid, palmitic acid, product show monoglyceride, the olive oil.
The preparation method of a kind of edibility polysaccharide-protein of the present invention composite package film, adopt following processing step: its formula rate is counted by weight:
(1), raw material takes by weighing:
1～3 part of sodium alginate, 1～2 part of sodium carboxymethyl cellulose, 0.5～0.75 part in gelatin, 0.1～0.5 part of water-repelling agent, 0.1～0.5 part of oxygen-inhibiting agent lactalbumin, 1～3 part of plasticizer glycerine, 80 parts of deionized waters;
(2), the preparation of first mixed solution:
1～2 part of 1～3 part of sodium alginate and sodium carboxymethyl cellulose in being 80-120 ℃ desicator, temperature are dried to constant weight, transfer to then and add 40 parts of deionized waters in the puddle mixer after the dry mixed, (sodium alginate: the weight ratio of sodium carboxymethyl cellulose is 1: 1 except that embodiment 1 in dissolving in 40-70 ℃ water-bath, this proportioning of all the other enforcements is 3: 1), be mixed with first mixed solution; Speed of agitator 190～210r/min;
(3), the preparation of second mixed solution:
In 10 parts of 0.5～0.75 part of adding of gelatin deionized waters, at room temperature swelling is 28～32 minutes, is mixed with gelatin solution, carry out emulsification then, emulsification times 4min, rotating speed 10000r/min, add first mixed solution and mixing after the emulsification, promptly make second mixed solution;
(4), the preparation of total mixed solution:
(a) preparation of water-repelling agent solution: with 0.1～0.5 part of water-repelling agent, add in 10 parts of the deionized waters, water-repelling agent is dissolved in the deionized water, after high speed shear emulsification, filter and make water-repelling agent solution, emulsification times 4min, rotating speed 10000r/min makes water-repelling agent solution with the filtration of filter paper normal pressure;
(b) preparation of oxygen-inhibiting agent lactoalbumin soln: 0.1～0.5 part of lactalbumin added in 75-90 ℃ 10 parts of the deionized waters and dissolve 30min, obtain whey protein solution;
(c) preparation of plasticizer glycerite: in 10 parts of 1～3 part of adding of glycerine deionized waters, make glycerine dissolving mixing in deionized water, make the plasticizer glycerite;
The water-repelling agent solution, oxygen-inhibiting agent lactoalbumin soln, the plasticizer glycerite that are mixed with are added in second mixed solution, fully stirred 1-5 hour, promptly make total mixed solution;
(5), microwave is crosslinked:
The above-mentioned total mixed solution that makes is carried out the microwave crosslinking Treatment; Described microwave crosslinking Treatment power is 200-400W, and the microwave crosslinking Treatment time is 1-3min;
(6), coating film forming:
The solution that the microwave crosslinking Treatment is good is 0.1-0.4Mpa at pressure, temperature is under 25-60 ℃ the condition after the vacuum defoamation, be poured on the glass board of dried and clean, use the applicator roll coating film forming, placing temperature then is 50-100 ℃ the dry 3-6 of vacuum drying chamber hour, can obtain edibility polysaccharide-protein complex film.
Be coated with vegetable and animals oils on the glass board in the described step (6) in advance fast and make mold release (temperature of oil is a normal temperature for animal oil such as lard, vegetable oil such as arachisoil); The thickness 70um of described edibility polysaccharide-protein composite package film.
The present invention compared with prior art, beneficial effect is: the edible polysaccharide-protein complex film of system of the present invention can overcome the shortcoming of monofilm mechanical characteristics deficiency, replace oxygen-inhibiting agent commonly used with lactalbumin, add trophism to edible film, and film is solubilized in water, reduced waste pollution when making things convenient for the customer to use again, the steam performance that blocks water that the adding of water-repelling agent has improved film has increased the light of film again, makes film more attractive in appearance.
Show according to test result:
1 edible polysaccharide-protein complex film outward appearance is a colorless and transparent film;
The micelle that the adding of 2 gelatin forms runs through in the middle of the tridimensional network with sodium alginate and sodium carboxymethyl cellulose, and the tensile strength that improves edible polysaccharide-protein complex film makes film have the mechanical characteristics and the elasticity of excellence with breaking elongation the time.The smooth surface of this edible polysaccharide-protein complex film is even, does not have any crack and aperture, and there is cellular homogeneous texture in its cross section, and is regular and intensive, do not have tangible phenomenon of phase separation; Its sem photograph is seen accompanying drawing 1, accompanying drawing 2.In 200 ~ 400nm scope, the UV Absorption of this edible polysaccharide-protein complex film is tested, find that this film maximum absorption band occurs at the 215nm place, acromion (seeing that accompanying drawing 3 shows) occurs at 203nm place and 235nm place.The edible packaging membrane material that this edible polysaccharide-protein complex film is a kind of novel anti-ultraviolet is described.
The tensile strength of this edible polysaccharide-protein complex film of 3 test shows and breaking elongation are respectively between 55MPa-80MPa and 32%-50%.
4 tests show: the adding of a small amount of water-repelling agent has significantly improved the barrier property (seeing that accompanying drawing 4 shows) of film; The interpolation lactalbumin can reduce the oxygen permeability (seeing that accompanying drawing 5 shows) of film
Description of drawings
Fig. 1 is the surface scan Electronic Speculum figure of edible polysaccharide-protein composite package film of the present invention.
Fig. 2 is the cross section sem photograph of edible polysaccharide-protein composite package film of the present invention.
Fig. 3 is the ultraviolet absorption curve figure of single film and poly-blended film.
The moisture-vapor transmission scheme drawing of film when Fig. 4 adopts different water-repelling agent for the present invention.
Fig. 5 is the OTR oxygen transmission rate scheme drawing of film during different lactalbumin addition for the present invention adopts.
The specific embodiment
The present invention will be further described below in conjunction with concrete drawings and Examples.Among the present invention, the JB200-S numeric display rotating speed electric blender that stirring operation adopts Shanghai Sample Model Factory to make; The FJ-200 high speed dispersion homogenizer that the emulsifying operation adopts Shanghai Sample Model Factory to make; The YJ501 thermostatic water-circulator bath pot control that temperature of reaction is made by Jintan City, Jiangsu Province high honour instrument Manufacturing Co., Ltd; The NJL07-3 type experiment special microwave oven that the crosslinked operation of microwave adopts the outstanding full microwave equipment Co., Ltd in Nanjing to make; The THS-AOC-100AS constant temperature and moisture test machine that the packaging film performance testing adopts KSON Instrument Technology to make; The AFA-II automatic spray device that the coating film forming operation adopts Shanghai Modern Environmental Engineering Technology Co., Ltd. to make; Determination of uv absorption adopts the UV-2800 of UNICO(Shanghai) Instruments Co., Ltd. (A) type ultra-violet and visible spectrophotometer.
The preparation method of a kind of edibility polysaccharide-protein of the present invention composite package film, adopt following processing step:
(1) takes by weighing 1.875 gram sodium alginates, 1.875 gram sodium carboxymethyl celluloses respectively after respectively 3 gram sodium alginates and 3 gram sodium carboxymethyl celluloses being dried to constant weight in temperature is 80-120 ℃ desicator; Take by weighing 0.75 gram gelatin, 0.3 gram sucrose ester, 0.1 gram lactalbumin and 2.25 gram glycerine again;
(2) sodium alginate and the sodium carboxymethyl cellulose that take by weighing are transferred to the deionized water that adds 40 milliliters in the puddle mixer after the dry mixed, in 40-70 ℃ water-bath, dissolve, fully mix liquid and make it even, speed of agitator 190～210r/min makes first mixed solution;
(3) gelatin that takes by weighing is added in 10 ml deionized water, swelling is about 30 minutes under the room temperature, used the high-shear homogenizer emulsifying again 3 minutes, homogenizing time 4min, rotating speed 10000r/min slowly joins in described first mixed solution then, stirs about 30 minutes, speed of agitator 190～210r/min obtains second mixed solution;
(4) sucrose ester that takes by weighing is dissolved in 10 milliliters 50 ℃ the deionized water, with high-shear homogenizer homogeneous 3 minutes, homogenizing time 4min, rotating speed 10000r/min after (filtering with the filter paper normal pressure) after filtration, adds it in above-mentioned second mixed solution;
(5) lactalbumin that takes by weighing is dissolved sex change 30 minutes in 10 milliliters 90 ℃ deionized water, after fully stirring and (filtering) after filtration solution is joined in above-mentioned second mixed solution with the filter paper normal pressure;
(6) will be in the glycerine that takes by weighing add 10 milliliters of deionized waters, fully stir about 60 minutes after, it is added in above-mentioned second mixed solution;
(7) above-mentioned second mixed solution that has added gelatin, sucrose ester, lactalbumin and glycerine was fully stirred 1-5 hour, promptly make total mixed solution;
(8) with the above-mentioned total mixed solution that makes at microwave under the condition of microwave power 200W after crosslinked 1 minute, be 0.1Mpa with the crosslinked total mixed solution that finishes at pressure again, temperature is vacuum defoamation under 30 ℃ the condition, solution after the deaeration is coated on applicator roll on the glass board of dried and clean and (makees mold release with being coated with vegetable and animals oils on the glass board in advance fast earlier: animal oil such as lard, vegetable oil such as arachisoil, the temperature of oil is a normal temperature), place 50 ℃ dry 8 hours of vacuum drying chamber, make the polysaccharide-protein composite package film, the thickness 70um of described edibility polysaccharide-protein composite package film.24～50%, dissolution time is between 125～210s at 20～51MPa, breaking elongation for its tensile strength of experimental test.
Therefore, the above-mentioned edible film that makes has mechanical characteristics and water-soluble preferably.
Embodiment 2
The preparation method of a kind of edibility polysaccharide-protein of the present invention composite package film, adopt following processing step:
(1) takes by weighing 3 gram sodium alginates, 1 gram sodium carboxymethyl cellulose respectively after respectively 5 gram sodium alginates and 2 gram sodium carboxymethyl celluloses being dried to constant weight in temperature is 80-120 ℃ desicator; Take by weighing 0.5 gram gelatin, 0.5 gram sucrose ester, 0.3 gram lactalbumin and 3 gram glycerine again;
(2) sodium alginate and the sodium carboxymethyl cellulose that take by weighing are transferred to the deionized water that adds 40 milliliters in the puddle mixer after the dry mixed, in 40-70 ℃ water-bath, dissolve, fully mix liquid and make it even, speed of agitator 190～210r/min makes first mixed solution;
(3) gelatin that takes by weighing is added in 10 ml deionized water, swelling is about 30 minutes under the room temperature, used the high-shear homogenizer emulsifying again 3 minutes, homogenizing time 4min, rotating speed 10000r/min slowly joins in described first mixed solution then, stirs about 30 minutes, speed of agitator 190～210r/min obtains second mixed solution;
(4) sucrose ester that takes by weighing is dissolved in 10 milliliters 50 ℃ the deionized water, with high-shear homogenizer homogeneous 3 minutes, homogenizing time 4min, rotating speed 10000r/min after (filtering with the filter paper normal pressure) after filtration, adds it in above-mentioned second mixed solution;
(5) lactalbumin that takes by weighing is dissolved sex change 30 minutes in 10 milliliters 90 ℃ deionized water, after fully stirring and (filtering) after filtration solution is joined in above-mentioned second mixed solution with the filter paper normal pressure;
(6) will be in the glycerine that takes by weighing add 10 milliliters of deionized waters, fully stir about 60 minutes after, it is added in above-mentioned second mixed solution;
(7) above-mentioned second mixed solution that has added gelatin, sucrose ester, lactalbumin and glycerine was fully stirred 1-5 hour, promptly make total mixed solution;
(8) with the above-mentioned total mixed solution that makes at microwave under the condition of microwave power 300W after crosslinked 2 minutes, be that 0.2Mpa, temperature are vacuum defoamation under 40 ℃ the condition with the crosslinked total mixed solution that finishes at pressure again, solution after the deaeration is coated on the glass board of dried and clean with applicator roll, place 60 ℃ dry 8 hours of vacuum drying chamber, make the polysaccharide-protein composite package film.
It should be noted that suitable microwave treatment time is main to closing for the mechanical characteristics that improves film, the packaging film of process microwave crosslinking Treatment can be used for the commodity that some are had relatively high expectations to mechanical characteristics.
Embodiment 3
The preparation method of a kind of edibility polysaccharide-protein of the present invention composite package film, adopt following processing step:
(1) takes by weighing 3 gram sodium alginates, 1 gram sodium carboxymethyl cellulose respectively after respectively 5 gram sodium alginates and 2 gram sodium carboxymethyl celluloses being dried to constant weight in temperature is 80-120 ℃ desicator; Take by weighing 0.5 gram gelatin, 0.1 gram sucrose ester, 0.5 gram lactalbumin again;
(2) sodium alginate and the sodium carboxymethyl cellulose that take by weighing are transferred to the deionized water that adds 50 milliliters in the puddle mixer after the dry mixed, in 40-70 ℃ water-bath, dissolve, fully mix liquid and make its even speed of agitator 190～210r/min, make first mixed solution;
(3) gelatin that takes by weighing is added in 10 ml deionized water, swelling is about 30 minutes under the room temperature, used the high-shear homogenizer emulsifying again 3 minutes, homogenizing time 4min, rotating speed 10000r/min slowly joins in described first mixed solution then, stirs about 30 minutes, speed of agitator 190～210r/min obtains second mixed solution;
(4) sucrose ester that takes by weighing is dissolved in 10 milliliters 50 ℃ the deionized water, with high-shear homogenizer homogeneous 3 minutes, homogenizing time 4min, rotating speed 10000r/min after (filtering with the filter paper normal pressure) after filtration, adds it in above-mentioned second mixed solution;
(5) lactalbumin that takes by weighing is dissolved sex change 30 minutes in 10 milliliters 90 ℃ deionized water, after fully stirring and (filtering) after filtration solution is joined in above-mentioned second mixed solution with the filter paper normal pressure;
(6) above-mentioned second mixed solution that has added gelatin, sucrose ester and lactalbumin was fully stirred 1-5 hour, promptly make total mixed solution;
(7) with the above-mentioned total mixed solution that makes at microwave under the condition of microwave power 400W after crosslinked 3 minutes, be that 0.4Mpa, temperature are vacuum defoamation under 45 ℃ the condition with the crosslinked total mixed solution that finishes at pressure again, solution after the deaeration is coated on the glass board of dried and clean with applicator roll, place 70 ℃ dry 8 hours of vacuum drying chamber, make the polysaccharide-protein composite package film.
The present invention combines main film forming substance complex method and microwave treatment, adopting sodium alginate, sodium carboxymethyl cellulose, gelatin is main film forming substance, made full use of the advantage of polysaccharide and protein: sodium alginate has good film forming, and film forming is light relatively, and it is easy to take off film; The mechanical strength of the film that sodium carboxymethyl cellulose became is good, adds gelatin and film forming liquid is carried out the emulsifying processing to increase the barrier and the profile pattern of film.Adopt microwave that film forming liquid is handled simultaneously, improved the tensile strength and the breaking elongation of film, reduced the too much negative effect of bringing of plasticizer consumption.
The edible packing membrane of this good combination property can be used as the internal coating of food inner packing or packaging materials such as plastics, paper, as reconstitute the inner packing of drink, the internal coating of candy wrapper etc., reduced packaging waste in the time of to providing convenience property of customer again, also provide a kind of new, packaged form safely and effectively for the packing of food.
Claims (4)
1. edibility polysaccharide-protein composite package film, it is characterized in that comprising following component: its formula rate is counted by weight:
1～3 part of sodium alginate, 1～2 part of sodium carboxymethyl cellulose, 0.5～1 part in gelatin, 0.1～0.5 part of water-repelling agent, 0.1～0.5 part of oxygen-inhibiting agent lactalbumin, 1～3 part of plasticizer glycerine, 80 parts of deionized waters;
It is main filmogen with sodium alginate, sodium carboxymethyl cellulose, gelatin, is auxiliary element with water-repelling agent, oxygen-inhibiting agent lactalbumin, plasticizer glycerine, is mixed with total mixed solution, makes through the crosslinked and coating film forming of microwave.
2. the preparation method of an edibility polysaccharide-protein composite package film, it is characterized in that adopting following processing step: its formula rate is counted by weight:
(1), raw material takes by weighing:
1～3 part of sodium alginate, 1～2 part of sodium carboxymethyl cellulose, 0.5～0.75 part in gelatin, 0.1～0.5 part of water-repelling agent, 0.1～0.5 part of oxygen-inhibiting agent lactalbumin, 1～3 part of plasticizer glycerine, 80 parts of deionized waters;
(2), the preparation of first mixed solution:
1～2 part of 1～3 part of sodium alginate and sodium carboxymethyl cellulose in being 80-120 ℃ desicator, temperature are dried to constant weight, transfer to then and add 40 parts of deionized waters in the puddle mixer after the dry mixed, in 40-70 ℃ water-bath, dissolve, be mixed with first mixed solution; Speed of agitator 190～210r/min;
(3), the preparation of second mixed solution:
In 10 parts of 0.5～0.75 part of adding of gelatin deionized waters, at room temperature swelling is 28～32 minutes, be mixed with gelatin solution, use the high-shear homogenizer emulsifying then, emulsification times 4min, high-shear homogenizer rotating speed 10000r/min adds first mixed solution and mixing after the emulsification, promptly make second mixed solution;
(4), the preparation of total mixed solution:
(a), the preparation of water-repelling agent solution: with 0.1～0.5 part of water-repelling agent, add in 10 parts of the deionized waters, water-repelling agent is dissolved in the deionized water, use the high-shear homogenizer emulsifying, emulsification times 4min, high-shear homogenizer rotating speed 10000r/min makes water-repelling agent solution with the filtration of filter paper normal pressure;
(b), the preparation of oxygen-inhibiting agent lactoalbumin soln: 0.1～0.5 part of oxygen-inhibiting agent lactalbumin added in 75-90 ℃ 10 parts of the deionized waters and dissolve 30min, make the oxygen-inhibiting agent lactoalbumin soln;
(c), the preparation of plasticizer glycerite: in 10 parts of 1～3 part of adding of plasticizer glycerine deionized waters, make plasticizer glycerine dissolving mixing in deionized water, make the plasticizer glycerite;
The water-repelling agent solution, oxygen-inhibiting agent lactoalbumin soln, the plasticizer glycerite that are mixed with are added in second mixed solution, fully stirred 1-5 hour, promptly make total mixed solution;
(5), microwave is crosslinked:
The above-mentioned total mixed solution that makes is carried out the microwave crosslinking Treatment; Described microwave crosslinking Treatment power is 200-400W, and the microwave crosslinking Treatment time is 1-3min;
(6) coating film forming:
The solution that the microwave crosslinking Treatment is good is 0.1-0.4Mpa at pressure, temperature is under 25-60 ℃ the condition after the vacuum defoamation, be poured on the glass board of dried and clean, use the applicator roll coating film forming, placing temperature then is 50-100 ℃ the dry 3-6 of vacuum drying chamber hour, can obtain edibility polysaccharide-protein complex film.
3. the preparation method of edibility polysaccharide-protein composite package film according to claim 2 is characterized in that the thickness 70um of described edibility polysaccharide-protein composite package film.
4. the preparation method of edibility polysaccharide-protein composite package film according to claim 2 is characterized in that described water-repelling agent is one or more compounds in sucrose ester, stearic acid, palmitic acid, palmitic acid, product show monoglyceride, the olive oil.
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|---|---|---|---|---|
| US5620757A (en) * | 1989-05-23 | 1997-04-15 | Mitsubishi Rayon Co., Ltd. | Edible film and method of making same |
| CN1827672A (en) * | 2006-02-13 | 2006-09-06 | 林玉惠 | Edible food package film and method for preparing same |
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| CN101811596A (en) | 2010-08-25 |
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