Compound plant extract antibacterial preservative film and preparation method thereof
A technology of plant extracts and fresh-keeping film, applied in biological packaging, flexible coverings, sustainable manufacturing/processing, etc. Bacteria and mildew-proof effect, excellent effect of sterilization and anti-mold performance
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Embodiment 1
[0020] A compound plant extract antibacterial preservative film, the preservative film includes the following raw materials in parts by weight: 10 parts of galangal, 20 parts of thyme, 5 parts of licorice, 5 parts of rhubarb, 15 parts of cnidium, 15 parts of litsea cubeba, 5 parts of chitosan, 2 parts of glycerin, 5 parts of adhesive starch and 5 parts of gelling agent.
[0021] The binder starch is tapioca starch or corn starch.
[0022] The gelling agent is one of edible gelatin, sodium algae silica and carrageenan.
[0023] A preparation method of a compound plant extract antibacterial preservative film, the specific preparation steps are:
[0024] Step 1: Preparation of different plant extracts: galangal, thyme, licorice, rhubarb, cnidium and litsea cubeba plant samples were weighed. After being pulverized into particles, use 4-8 times the amount of ethanol to extract twice at room temperature for 48 hours each time, combine the two extracts, and filter under reduced pre...
Embodiment 2
[0030] A compound plant extract antibacterial preservative film, said preservative film comprising the following raw materials in parts by weight: 20 parts of galangal, 30 parts of thyme, 10 parts of licorice, 10 parts of rhubarb, 25 parts of Fructus Cnidii, 20 parts of Litsea cubeba, 10 parts of chitosan, 6 parts of glycerin, 10 parts of adhesive starch and 10 parts of gelling agent.
[0031] The binder starch is tapioca starch or corn starch.
[0032] The gelling agent is one of edible gelatin, sodium algae silica and carrageenan.
[0033] A preparation method of a compound plant extract antibacterial preservative film, the specific preparation steps are:
[0034] Step 1: Preparation of different plant extracts: Weigh plant samples of galangal, thyme, licorice, rhubarb, cnidium, and litsea cubeba respectively. After being pulverized into particles, use 4-8 times the amount of ethanol to extract twice at room temperature for 48 hours each time, combine the two extracts, and...
Embodiment 3
[0040] A compound plant extract antibacterial preservative film, the preservative film includes the following raw materials in parts by weight: 30 parts of galangal, 40 parts of thyme, 20 parts of licorice, 20 parts of rhubarb, 35 parts of cnidium, 30 parts of litsea cubeba, 15 parts of chitosan, 10 parts of glycerin, 20 parts of adhesive starch and 15 parts of gelling agent.
[0041] The binder starch is tapioca starch or corn starch.
[0042] The gelling agent is one of edible gelatin, sodium algae silica and carrageenan.
[0043] A preparation method of a compound plant extract antibacterial preservative film, the specific preparation steps are:
[0044] Step 1: Preparation of different plant extracts: Weigh plant samples of galangal, thyme, licorice, rhubarb, cnidium, and litsea cubeba respectively. After being pulverized into particles, use 4-8 times the amount of ethanol to extract twice at room temperature for 48 hours each time, combine the two extracts, and filter u...
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