CN117487363A - Degradable edible walnut oil fresh-keeping packaging material and preparation method and application thereof - Google Patents
Degradable edible walnut oil fresh-keeping packaging material and preparation method and application thereof Download PDFInfo
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- CN117487363A CN117487363A CN202311298313.5A CN202311298313A CN117487363A CN 117487363 A CN117487363 A CN 117487363A CN 202311298313 A CN202311298313 A CN 202311298313A CN 117487363 A CN117487363 A CN 117487363A
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- Prior art keywords
- walnut oil
- packaging material
- edible
- dialdehyde
- degradable
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- 235000019498 Walnut oil Nutrition 0.000 title claims abstract description 64
- 239000008170 walnut oil Substances 0.000 title claims abstract description 64
- 239000005022 packaging material Substances 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000000284 extract Substances 0.000 claims abstract description 23
- 108010010803 Gelatin Proteins 0.000 claims abstract description 22
- 229920000159 gelatin Polymers 0.000 claims abstract description 22
- 239000008273 gelatin Substances 0.000 claims abstract description 22
- 235000019322 gelatine Nutrition 0.000 claims abstract description 22
- 235000011852 gelatine desserts Nutrition 0.000 claims abstract description 22
- 238000004806 packaging method and process Methods 0.000 claims abstract description 14
- 229920001282 polysaccharide Polymers 0.000 claims abstract description 14
- 239000005017 polysaccharide Substances 0.000 claims abstract description 14
- -1 dialdehyde polysaccharide Chemical class 0.000 claims abstract description 10
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000003756 stirring Methods 0.000 claims description 21
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 19
- 239000004014 plasticizer Substances 0.000 claims description 19
- ZNZYKNKBJPZETN-WELNAUFTSA-N Dialdehyde 11678 Chemical compound N1C2=CC=CC=C2C2=C1[C@H](C[C@H](/C(=C/O)C(=O)OC)[C@@H](C=C)C=O)NCC2 ZNZYKNKBJPZETN-WELNAUFTSA-N 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- JQWHASGSAFIOCM-UHFFFAOYSA-M sodium periodate Chemical compound [Na+].[O-]I(=O)(=O)=O JQWHASGSAFIOCM-UHFFFAOYSA-M 0.000 claims description 10
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 9
- 239000008157 edible vegetable oil Substances 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- IXPNQXFRVYWDDI-UHFFFAOYSA-N 1-methyl-2,4-dioxo-1,3-diazinane-5-carboximidamide Chemical compound CN1CC(C(N)=N)C(=O)NC1=O IXPNQXFRVYWDDI-UHFFFAOYSA-N 0.000 claims description 8
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 8
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 8
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 8
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 8
- 239000000661 sodium alginate Substances 0.000 claims description 8
- 235000010413 sodium alginate Nutrition 0.000 claims description 8
- 229940005550 sodium alginate Drugs 0.000 claims description 8
- 239000006228 supernatant Substances 0.000 claims description 8
- 229920002085 Dialdehyde starch Polymers 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 238000001035 drying Methods 0.000 claims description 5
- 150000004676 glycans Chemical class 0.000 claims description 5
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000001105 regulatory effect Effects 0.000 claims description 5
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 3
- 239000000600 sorbitol Substances 0.000 claims description 3
- 229920001661 Chitosan Polymers 0.000 claims description 2
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 2
- 229920002907 Guar gum Polymers 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 2
- 239000000665 guar gum Substances 0.000 claims description 2
- 235000010417 guar gum Nutrition 0.000 claims description 2
- 229960002154 guar gum Drugs 0.000 claims description 2
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000811 xylitol Substances 0.000 claims description 2
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 2
- 229960002675 xylitol Drugs 0.000 claims description 2
- 235000010447 xylitol Nutrition 0.000 claims description 2
- 239000003925 fat Substances 0.000 claims 1
- 239000003921 oil Substances 0.000 claims 1
- 235000019198 oils Nutrition 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 21
- 238000007254 oxidation reaction Methods 0.000 abstract description 21
- 238000009447 edible packaging Methods 0.000 abstract description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 7
- 239000001301 oxygen Substances 0.000 abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 abstract description 7
- 235000013305 food Nutrition 0.000 abstract description 5
- 239000004519 grease Substances 0.000 abstract description 5
- 238000004321 preservation Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000000654 additive Substances 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 12
- 239000008367 deionised water Substances 0.000 description 11
- 229910021641 deionized water Inorganic materials 0.000 description 11
- 235000009496 Juglans regia Nutrition 0.000 description 9
- 238000005303 weighing Methods 0.000 description 9
- 241000758789 Juglans Species 0.000 description 8
- 235000020234 walnut Nutrition 0.000 description 8
- 239000004698 Polyethylene Substances 0.000 description 6
- 238000004108 freeze drying Methods 0.000 description 6
- 239000011259 mixed solution Substances 0.000 description 6
- WSMYVTOQOOLQHP-UHFFFAOYSA-N Malondialdehyde Chemical compound O=CCC=O WSMYVTOQOOLQHP-UHFFFAOYSA-N 0.000 description 5
- 230000003078 antioxidant effect Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 5
- 239000002131 composite material Substances 0.000 description 5
- 238000000502 dialysis Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 229940118019 malondialdehyde Drugs 0.000 description 5
- 150000002978 peroxides Chemical class 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 4
- 239000003963 antioxidant agent Substances 0.000 description 3
- 239000011091 composite packaging material Substances 0.000 description 3
- 239000000796 flavoring agent Substances 0.000 description 3
- 235000019634 flavors Nutrition 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 2
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 2
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 2
- 239000005642 Oleic acid Substances 0.000 description 2
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 2
- 150000002632 lipids Chemical class 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000014571 nuts Nutrition 0.000 description 2
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 235000006667 Aleurites moluccana Nutrition 0.000 description 1
- 244000147058 Derris elliptica Species 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- OYHQOLUKZRVURQ-HZJYTTRNSA-N Linoleic acid Chemical compound CCCCC\C=C/C\C=C/CCCCCCCC(O)=O OYHQOLUKZRVURQ-HZJYTTRNSA-N 0.000 description 1
- 206010028980 Neoplasm Diseases 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- DTOSIQBPPRVQHS-PDBXOOCHSA-N alpha-linolenic acid Chemical compound CC\C=C/C\C=C/C\C=C/CCCCCCCC(O)=O DTOSIQBPPRVQHS-PDBXOOCHSA-N 0.000 description 1
- 235000020661 alpha-linolenic acid Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000003110 anti-inflammatory effect Effects 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- OHDRQQURAXLVGJ-HLVWOLMTSA-N azane;(2e)-3-ethyl-2-[(e)-(3-ethyl-6-sulfo-1,3-benzothiazol-2-ylidene)hydrazinylidene]-1,3-benzothiazole-6-sulfonic acid Chemical compound [NH4+].[NH4+].S/1C2=CC(S([O-])(=O)=O)=CC=C2N(CC)C\1=N/N=C1/SC2=CC(S([O-])(=O)=O)=CC=C2N1CC OHDRQQURAXLVGJ-HLVWOLMTSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 201000011510 cancer Diseases 0.000 description 1
- 230000005189 cardiac health Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- HHEAADYXPMHMCT-UHFFFAOYSA-N dpph Chemical compound [O-][N+](=O)C1=CC([N+](=O)[O-])=CC([N+]([O-])=O)=C1[N]N(C=1C=CC=CC=1)C1=CC=CC=C1 HHEAADYXPMHMCT-UHFFFAOYSA-N 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 235000019197 fats Nutrition 0.000 description 1
- 235000021588 free fatty acids Nutrition 0.000 description 1
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 1
- 150000002432 hydroperoxides Chemical class 0.000 description 1
- 230000036737 immune function Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 235000020778 linoleic acid Nutrition 0.000 description 1
- OYHQOLUKZRVURQ-IXWMQOLASA-N linoleic acid Natural products CCCCC\C=C/C\C=C\CCCCCCCC(O)=O OYHQOLUKZRVURQ-IXWMQOLASA-N 0.000 description 1
- 229960004488 linolenic acid Drugs 0.000 description 1
- KQQKGWQCNNTQJW-UHFFFAOYSA-N linolenic acid Natural products CC=CCCC=CCC=CCCCCCCCC(O)=O KQQKGWQCNNTQJW-UHFFFAOYSA-N 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 208000030159 metabolic disease Diseases 0.000 description 1
- 230000007102 metabolic function Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000021281 monounsaturated fatty acids Nutrition 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 235000021049 nutrient content Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000000050 nutritive effect Effects 0.000 description 1
- SOQBVABWOPYFQZ-UHFFFAOYSA-N oxygen(2-);titanium(4+) Chemical compound [O-2].[O-2].[Ti+4] SOQBVABWOPYFQZ-UHFFFAOYSA-N 0.000 description 1
- 239000012785 packaging film Substances 0.000 description 1
- 229920006280 packaging film Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 235000020777 polyunsaturated fatty acids Nutrition 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
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- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010345 tape casting Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/463—Edible packaging materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
- B65D65/38—Packaging materials of special type or form
- B65D65/46—Applications of disintegrable, dissolvable or edible materials
- B65D65/466—Bio- or photodegradable packaging materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2389/00—Characterised by the use of proteins; Derivatives thereof
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/02—Cellulose; Modified cellulose
- C08J2401/04—Oxycellulose; Hydrocellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2401/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2401/08—Cellulose derivatives
- C08J2401/26—Cellulose ethers
- C08J2401/28—Alkyl ethers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/05—Alcohols; Metal alcoholates
- C08K5/053—Polyhydroxylic alcohols
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Medicinal Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Materials Engineering (AREA)
- Wrappers (AREA)
Abstract
The invention belongs to the technical field of preservation packaging materials, and discloses a degradable edible walnut oil preservation packaging material, which is prepared by taking gelatin as a matrix and dialdehyde polysaccharide and coffee leaf extract as additives. The degradable edible packaging material for walnut oil preservation has excellent steam, oxygen and ultraviolet blocking performance and excellent oxidation resistance, has good mechanical property and heat sealing property, can effectively prevent the grease in the package from overflowing, reduces the chance of the grease in the package contacting air and light, effectively prevents the walnut oil from oxidative rancidity and prolongs the shelf life of the walnut oil. The packaging material has the advantages of simple preparation method, low cost, no special equipment requirement and great application potential in the field of food packaging.
Description
Technical Field
The invention belongs to the technical field of fresh-keeping packaging films, and particularly discloses a degradable edible walnut oil fresh-keeping packaging material, a preparation method and application thereof.
Background
Walnut is one of the four world's well known nuts, and walnut yield is currently the second in nut production worldwide. Is widely planted in the world and is also an important woody oil tree seed in China. The walnut has a very rich nutrient content, and eating walnut or walnut-containing food has been proven to be beneficial for heart health, prevention of cancer and metabolic disorders, because they have antioxidant and anti-inflammatory properties, and maintain healthy metabolism and immune function. In addition, the walnut is the edible oil with higher nutritive value, which is obtained by squeezing or solvent leaching walnut kernel, and is deeply favored by consumers along with the enhancement of health care consciousness of people, and the output and the demand of the edible oil are increased year by year.
However, walnut oil contains not only rich monounsaturated fatty acids such as oleic acid, but also higher polyunsaturated fatty acids such as linoleic acid and linolenic acid. The walnut oil is extremely easy to generate oxidation rancidity in the processing, storage and selling processes, so that the flavor of the walnut oil is deteriorated, the nutritional value is reduced, even substances which are toxic and harmful to human bodies are generated, and the human health is adversely affected, so that the quality and flavor of the walnut oil are affected, the difficulty is increased for storing the walnut oil product, and the shelf life of the product is affected. Thus, how to delay and reduce walnut oil oxidation has become a critical issue in processing and storage.
Packaging walnut oil by adopting an antioxidant packaging material is an effective way for solving the problems. Chinese patent CN113086397a discloses a package of poplar and walnut oil oxidation, the package is an anti-ultraviolet self-standing bag, a layer of antioxidation coating is provided on the inner wall of the anti-ultraviolet self-standing bag, the anti-ultraviolet self-standing bag is divided into an outer layer and an inner layer, the outer layer is a coating made of a mixture of film forming resin and nano titanium dioxide, the inner layer is a polyethylene layer, and the mouth of the anti-ultraviolet self-standing bag is provided with a one-way check valve. The self-standing bag is used for packaging walnut oil, and can effectively prolong the shelf life and shelf life of the walnut oil. However, the main component of the self-standing pouch in this patent is plastic, which is a petroleum-based packaging material. It is well known that the use of plastics in large quantities not only contributes to the exacerbation of the "white pollution" of the environment, but also the migration of toxic plasticizers in plastics into foods, which poses a safety risk to human health. Therefore, the preparation and development of a biodegradable safe walnut oil fresh-keeping packaging material are urgently needed.
Disclosure of Invention
The invention aims at providing a degradable edible walnut oil fresh-keeping packaging material.
The second purpose of the invention is to provide a preparation method for preparing the packaging material based on the degradable edible walnut oil fresh-keeping packaging material.
The invention further aims to provide application of the degradable edible oil fresh-keeping packaging material, and particularly application of the degradable edible oil fresh-keeping packaging material to walnut oil fresh keeping.
The technical purpose is realized by the following scheme:
the degradable edible walnut oil fresh-keeping packaging material comprises the following components in parts by weight: 2 to 6 parts of gelatin, 0.2 to 0.6 part of dialdehyde polysaccharide, 0.1 to 0.3 part of coffee leaf extract and 0.4 to 1.2 parts of edible plasticizer; the coffee leaf extract is obtained by extracting dry coffee leaf powder (conventionally purchased) with water.
Preferably, the edible plasticizer is one or more of glycerol, ethylene glycol, sorbitol, xylitol, polyethylene glycol.
Preferably, the dialdehyde polysaccharide is one or more of dialdehyde carboxymethyl cellulose, dialdehyde sodium alginate, dialdehyde starch, dialdehyde chitosan, dialdehyde guar gum.
Preferably, the coffee leaf extract is prepared by adding dry coffee leaf powder into boiling water, keeping the solid-to-liquid ratio at 1:20-40 g/mL for 15-30 min, taking supernatant, drying and pulverizing.
Preferably, 5-15 g of polysaccharide is added into 200mL of deionized water, then 5.35-5.45 g of sodium periodate is added, the pH is regulated to 3-5 by acid/alkali after stirring uniformly at room temperature, the reaction time is 5-6 h, finally 3.5mL of glycol is added to terminate the reaction, the solution obtained by the reaction is dialyzed in deionized water for 6-8 days by a dialysis bag, and the dialyzed solution is freeze-dried to obtain the dialdehyde polysaccharide.
The second purpose of the invention is to provide a preparation method of the degradable edible walnut oil fresh-keeping packaging material, wherein the invention adopts the conventional tape casting film forming process to treat, more specifically, gelatin is added into water for stirring, and then plasticizer is added for stirring; and sequentially adding the dialdehyde polysaccharide and the coffee leaf extract to obtain a mixture, stirring, and forming a film.
Preferably, the concentration of gelatin in the mixture is 20 to 60g/mL.
The invention further aims to provide an application of the degradable edible fresh-keeping packaging material in preparation of fresh-keeping packaging materials. Further, the fresh-keeping packaging material is edible oil which is easy to oxidize and rancid under the natural preservation condition. Further, the edible oil is walnut oil.
Compared with the prior art, the excellent effects of the invention are mainly reflected in the following aspects:
(1) The preparation method of the degradable edible walnut oil fresh-keeping packaging material is simple, is easy to operate, does not need complex instruments and equipment, and is a simple, green and environment-friendly preparation method with mild conditions;
(2) The walnut oil fresh-keeping packaging material prepared by the invention has excellent water vapor, oxygen and ultraviolet blocking performance and excellent oxidation resistance, and has good mechanical property and heat sealing property. Not only can the problems of cracking of the packaging material and overflowing of the walnut oil be effectively prevented, but also the rancidity of grease caused by external environment factors such as light, oxygen, water vapor and the like can be effectively slowed down, and the added coffee leaf extract has excellent oxidation resistance, so that the oxidation rancidity of grease can be further effectively prevented, and the shelf life of the walnut oil is effectively prolonged.
(3) The walnut oil fresh-keeping packaging material prepared by the invention has good biodegradability and edibility, can be treated and degraded in a composting mode, a soil burying mode and the like after being used, is environment-friendly and pollution-free, can be used for conveniently packaging small-sized walnut oil, is eaten together with the walnut oil in the using process, and is nontoxic and harmless.
Drawings
FIG. 1 is a graph showing the effect of degradable and edible packaging materials, PE films and non-packaging treatments (control) on the peroxide value POV of walnut oil under a simulated accelerated oxidation process;
FIG. 2 is a graph showing the effect of degradable and edible packaging material, PE film and non-packaging treatment (control) on the acid value AV of walnut oil under simulated accelerated oxidation;
FIG. 3 is a graph depicting the effect of degradable and edible packaging material, PE film and control of unpackaged process (control) on MDA content of walnut oil malondialdehyde;
fig. 4 is a picture of the wrapping of walnut oil with the freshness protection package material of examples 1-3, and examples 1 to 3 are shown in sequence from left to right.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The preparation is carried out according to the conventional conditions or the conditions suggested by manufacturers without specifying the specific conditions in the examples of the invention, and the reagents or instruments used are conventional products which can be obtained through commercial purchase without specifying the manufacturers.
Example 1
(1) Weighing 2g of commercial gelatin, adding the commercial gelatin into 100mL of deionized water, stirring for 1h at 50 ℃, then adding 0.4g of glycerol as a plasticizer, and continuing stirring for 20min;
(2) Weighing 0.2g of dialdehyde carboxymethyl cellulose, adding the dialdehyde carboxymethyl cellulose into the gelatin solution containing the plasticizer in the step (1), and continuously stirring for 20min at 50 ℃; the specific preparation method of the dialdehyde carboxymethyl cellulose comprises the steps of adding 10g of polysaccharide (carboxymethyl cellulose) into 200mL of deionized water, then adding 5.35g of sodium periodate, stirring uniformly at room temperature, regulating pH to 3 by using acid/alkali, reacting for 6 hours, finally adding 3.5mL of glycol to terminate the reaction, dialyzing the solution obtained by the reaction in deionized water for 6 days by using a dialysis bag, and freeze-drying the dialyzed solution.
(3) Weighing 0.1g of coffee leaf extract, adding into the mixed solution containing the plasticizer, gelatin and dialdehyde carboxymethyl cellulose in the step (2), and continuously stirring for 20min at 50 ℃; and then pouring the mixed solution into a self-made glass plate to form a film, and drying at room temperature to obtain the composite packaging material containing the plasticizer gelatin, the dialdehyde carboxymethyl cellulose and the coffee leaf extract.
The specific preparation method of the coffee leaf extract comprises the steps of adding a certain amount of dry coffee leaf powder into boiling water, keeping the solid-to-liquid ratio at 1:20g/mL for 15min, taking supernatant, and freeze-drying and grinding the supernatant to obtain the coffee leaf extract.
Example 2:
(1) Weighing 4g of commercial gelatin, adding the commercial gelatin into 100mL of deionized water, stirring for 1.5h at 50 ℃, then adding 0.8g of ethylene glycol as a plasticizer, and continuing stirring for 30min;
(2) Weighing 0.4g of dialdehyde sodium alginate, adding the dialdehyde sodium alginate into the gelatin solution containing the plasticizer in the step (1), and continuously stirring for 30min at 50 ℃;
the specific preparation method of the dialdehyde sodium alginate comprises the steps of adding 5g of polysaccharide (sodium alginate) into 200mL of deionized water, then adding 5.35g of sodium periodate, stirring uniformly at room temperature, regulating the pH to 3 by using acid/alkali, reacting for 6 hours, finally adding 3.5mL of glycol to terminate the reaction, dialyzing the solution obtained by the reaction in deionized water for 7 days by using a dialysis bag, and freeze-drying the solution after dialysis.
(3) Weighing 0.2g of coffee leaf extract, adding into the mixed solution containing the plasticizer, gelatin and dialdehyde sodium alginate in the step (2), and continuously stirring for 30min at 50 ℃; and then pouring the mixed solution into a self-made glass plate to form a film, and drying at room temperature to obtain the composite packaging material containing the plasticizer gelatin, the dialdehyde sodium alginate and the coffee leaf extract.
The specific preparation method of the coffee leaf extract comprises the steps of adding a certain amount of dry coffee leaf powder into boiling water, keeping the solid-to-liquid ratio at 1:30g/mL for 20min, taking supernatant, and freeze-drying and grinding the supernatant to obtain the coffee leaf extract.
Example 3:
(1) Weighing 6g of commercial gelatin, adding the commercial gelatin into 100mL of deionized water, stirring for 2 hours at 50 ℃, then adding 1.2g of sorbitol as a plasticizer, and continuing stirring for 40 minutes;
(2) Weighing 0.6g of dialdehyde starch, adding the dialdehyde starch into the gelatin solution containing the plasticizer in the step (1), and continuously stirring for 20min at 50 ℃;
the specific preparation method of the dialdehyde starch comprises the steps of adding 15g of polysaccharide (starch) into 200mL of deionized water, then adding 5.45g of sodium periodate, stirring uniformly at room temperature, regulating pH to 3.5 by using acid/alkali, reacting for 5.5 hours, finally adding 3.5mL of glycol to terminate the reaction, dialyzing the solution obtained by the reaction in deionized water for 8 days by using a dialysis bag, and freeze-drying the dialyzed solution.
(3) Weighing 0.3g of coffee leaf extract, adding into the mixed solution containing the plasticizer, the gelatin and the dialdehyde starch in the step (2), and continuously stirring for 30min at 50 ℃; and then pouring the mixed solution into a self-made glass plate to form a film, and drying at room temperature to obtain the composite packaging material containing the plasticizer gelatin, dialdehyde starch and coffee leaf extract.
The specific preparation method of the coffee leaf extract comprises the steps of adding a certain amount of dry coffee leaf powder into boiling water, keeping the solid-to-liquid ratio at 1:40g/mL for 30min, taking supernatant, and freeze-drying and grinding the supernatant to obtain the coffee leaf extract.
Application example one: the performance detection of the degradable edible packaging material prepared by the embodiment
Detecting the water vapor transmittance, the oxygen transmittance, the ultraviolet light transmittance, the oxidation resistance and the mechanical properties of the degradable edible packaging materials prepared in the examples 1-3; wherein the water vapor transmission rate is measured by the method described in GB 1037-1988; the oxygen transmission rate is detected by referring to the method in GB/T19789-2005; the ultraviolet light transmittance is detected by an ultraviolet-visible spectrophotometer; IC with oxidation resistance scavenging by ABTS and DPPH free radicals 50 Value characterization; tensile strength was measured according to the method in GB13022-91 and heat seal strength was measured according to the method in QB/T2358-1998. The results are shown in tables 1 to 3.
TABLE 1 Water vapor Transmission, oxygen Transmission and ultraviolet light Transmission of the products
Table 2 antioxidant Activity of the products
As can be seen from the above tables 1-2, the degradable edible packaging material prepared by the method has better water vapor, oxygen and ultraviolet light barrier property and excellent antioxidant activity;
TABLE 3 mechanical Properties and Heat sealability of the products
As can be seen from the table 3, the degradable edible packaging material prepared by the method has better mechanical property and heat sealing property.
Application example II: in order to further verify the fresh-keeping effect of the compound package on the walnut oil, the applicant performs research and discussion experiments on the stability of the walnut oil packaged by the invention, and meanwhile, the packaging of unpackaged control and conventional commercial PE materials is used as a control;
the specific experiments comprise:
(1) Raw materials: walnut oil (old walnut tree), purchased from qiaojia county, local flavor food limited, the label of which claims not to add any antioxidant.
(2) The test method comprises the following steps:
the packaging materials prepared in examples 1-3 were used by taking 10g of walnut oil samples and putting them into 20mL of the package of the present invention under the condition of simulating the accelerated oxidation of edible oil in an incubator at 50 ℃, and taking out a certain amount of edible oil at 0, 3, 6, 9 and 12 days. The peroxide value (GB 5009.227-2016), acid value (GB 5009.229-2016) and malondialdehyde (GB 5009.181-2016) were determined. And PE film packaging is compared, and the influence of novel composite packaging on the oxidative rancidity of walnut oil is explored.
(3) Analysis of results:
according to the requirements of food safety in the national standard of walnut oil (GB/T22327-2019 walnut oil), the peroxide value POV is less than or equal to 0.25g/100g and the acid value (calculated by KOH) is less than or equal to 3mg/g, and the results are shown in figures 1, 2 and 3.
As can be seen from FIG. 1, the peroxide value of the fresh walnut oil treated by different packaging methods fluctuates within a certain range within 0-12 days along with the extension of the oxidation time, and the peroxide value of the walnut oil generally shows an ascending trend along with the extension of the oxidation time. Examples 1-3 the oxidation rate of the walnut oil was slower than other packages and the POV values of the blank group were as high as 0.28g/100g on day 12, exceeding the requirements of the relevant national standards. In contrast, examples 1-3 had slower oxidation rates of walnut oil than other packages, and the group 3 composite films had POV values of only 0.07g/100g at a minimum. This is because the composite film of example 3 has high water vapor and oxygen gas barrier properties, and the high content of the coffee leaf extract of example 3 provides hydrogen atoms for lipid radicals or peroxy radicals and eliminates them, thereby blocking the chain reaction of the radicals and hindering the production of hydroperoxides.
As can be seen from fig. 2, the acid value of the fresh walnut oil treated by different packaging methods fluctuates within a certain range within 0-12 days, and the acid value of the walnut oil generally shows an ascending trend along with the prolongation of the oxidation time. The acid value of the blank group on day 12 is 3.71mg/kg (calculated by KOH) which is more than 3mg/g, and the requirement of the relevant national standard is exceeded. In contrast, during the 0-12 day fat oxidation stage, examples 1-3 walnut oils had lower acid value contents than other packages, and did not produce significant amounts of free fatty acids. In particular, the walnut oleic acid value of the composite film fresh-keeping of the example 3 is only 1.21mg/kg (calculated by KOH) which is far smaller than that of a blank group. The composite membrane of example 3 can effectively slow down the oxidation speed of lipid and inhibit the degradation of grease.
As can be seen from FIG. 3, the acid value of the fresh walnut oil treated by different packaging methods is gradually increased within 0-12 days, but the malondialdehyde content of the walnut oil in the embodiment 1-3 is lower than that of other groups, and the malondialdehyde content of the walnut oil in the blank group is as high as 3.97mmol/g on 12 days, compared with the malondialdehyde content of the fresh walnut oil in the embodiment 3, which is the lowest, is only 1.65mmol/g. Demonstration that example 3 was effective in slowing down the rate of lipid oxidation and inhibiting the production of secondary oxidation products. In conclusion, the results show that the package disclosed by the invention can effectively maintain the quality of the walnut oil and prolong the shelf life of the walnut oil during storage.
Fig. 4 shows the packaging of walnut oil by the fresh-keeping packaging materials of examples 1 to 3.
The embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, and yet fall within the scope of the invention.
Claims (10)
1. The degradable edible walnut oil fresh-keeping packaging material is characterized by comprising the following components in parts by weight: 2 to 6 parts of gelatin, 0.2 to 0.6 part of dialdehyde polysaccharide, 0.1 to 0.3 part of coffee leaf extract and 0.4 to 1.2 parts of edible plasticizer; the coffee leaf extract is obtained by extracting dry coffee leaf powder with water.
2. The degradable edible walnut oil fresh-keeping packaging material according to claim 1, wherein the edible plasticizer is one or more of glycerol, ethylene glycol, sorbitol, xylitol and polyethylene glycol.
3. The degradable edible walnut oil fresh-keeping packaging material of claim 1, wherein the dialdehyde polysaccharide is one or more of dialdehyde carboxymethyl cellulose, dialdehyde sodium alginate, dialdehyde starch, dialdehyde chitosan and dialdehyde guar gum.
4. The degradable edible walnut oil fresh-keeping packaging material according to claim 1, wherein the coffee leaf extract is prepared by adding dry coffee leaf powder into boiling water, keeping the solid-to-liquid ratio at 1:20-40 g/mL, extracting for 15-30 min, taking supernatant, drying and crushing.
5. The degradable edible walnut oil fresh-keeping packaging material according to claim 1 or 3, wherein 5-15 g of polysaccharide is added into 200mL of water, then 5.35-5.45 g of sodium periodate is added, the pH is regulated to 3-5 by acid/alkali after stirring uniformly at room temperature, the reaction time is 5-6 h, finally glycol is added to terminate the reaction, the solution obtained by the reaction is dialyzed in water for 6-8 days, and the dialyzed solution is freeze-dried to obtain the dialdehyde polysaccharide.
6. A method for preparing the degradable edible walnut oil fresh-keeping packaging material according to claim 1, which is characterized in that gelatin is added into water and stirred, and then edible plasticizer is added and stirred; and sequentially adding the dialdehyde polysaccharide and the coffee leaf extract to obtain a mixture, stirring, and forming a film.
7. The method according to claim 6, wherein the concentration of gelatin in the mixture is 20 to 60g/mL.
8. The use of the degradable edible walnut oil fresh-keeping packaging material of claim 1 in the preparation of fresh-keeping packaging products.
9. The use according to claim 8, wherein the freshness package product is used for preserving edible fats and oils that are susceptible to oxidative rancidity under natural conditions.
10. The use according to claim 9, wherein the edible oil is walnut oil.
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