An anthocyanin beverage and applications of red elephant grass (pennisetum purpureum schumab cv) in the preparation of the anthocyanin beverage
A technology of red elephant grass and anthocyanins, applied in the field of agricultural and sideline product processing, to achieve the effects of good taste, easy industrial development, and high yield
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specific Embodiment approach 2
[0031] The licorice, peppermint, citric acid, chitosan, stevioside, and sorbic acid are food-grade, mainly used to adjust the mouthfeel; EDTA and D-sodium erythorbate are analytically pure, and mainly play a color-fixing role; EDTA is ethylenediamine tetraacetic acid. All the above food additives are solid.
[0032] The role of each food additive is as follows:
[0033] Citric acid: used as flavoring agent and stabilizer in food and beverage industry.
[0034] Peppermint: Adds fragrance.
[0035] Chitosan: Chitosan and its derivatives have good antibacterial activity, can inhibit the growth and reproduction of some fungi, bacteria, and viruses, and have antiseptic effects.
[0036] EDTA: stabilizer.
[0037] Stevioside: Natural sweetener, increases sweetness.
[0038] D-sodium erythorbate: antioxidant, antiseptic preservative.
[0039] Sorbic acid: Antiseptic preservative.
[0040]
[0041] The third embodiment of the present invention provides the application of red el...
specific Embodiment approach 3
[0042] The preparation technology of described beverage specifically comprises the following steps:
[0043] ① Beating: choose freshly washed stems and / or leaves of red elephant grass as raw materials. Before beating, it is best to cut the stems and / or leaves of freshly washed red elephant grass to facilitate beating. Then add water and beat according to the weight ratio of red elephant grass: pure water = 1:2-4 to obtain a slurry mixture. When beating, use a beater to beat the stems and / or leaves of red elephant grass into fibrous strands, usually using a beater at 3500 rpm for 8-10 minutes to complete the beating process.
[0044] ②Leaching: firstly extract the slurry mixture obtained in step ① at 50-70°C with volatile organic solvent ethanol for more than 1 hour, then filter and collect to obtain a primary extract, and then filter the filtered residue with 4-6 times The weight of pure water is leached at 50-70 °C for more than 1.5 hours, and the filter residue is filtered...
Embodiment 1
[0054] ① Beating: Cut the freshly washed stems and / or leaves of Red Elephant Grass into 2-3cm stem segments. After that, add water and beat according to the weight ratio of red elephant grass: pure water = 1:3, and use a beater at 3500 rpm for 9 minutes to obtain a slurry mixture.
[0055] ②Leaching: First, mix the slurry mixture obtained in step ① with 85% ethanol aqueous solution at 60°C according to the volume ratio of 4 parts of slurry mixture: 1 part of ethanol aqueous solution, reflux for 1 hour, and then filter Collect the primary extract, then extract the filtered filter residue with 5 times the weight of pure water at 60°C for 1.5 hours, filter and discard the filter residue to obtain the secondary extract;
[0056] 3. Filtration: After combining the primary extract and the secondary extract obtained in step 2, filter with an 8000Da membrane, discard the filter residue to obtain the extract of Red Elephant Grass.
[0057] 4. mixing and blending: the extract of Red El...
PUM
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