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A kind of processing method of dendrobium candidum leaf tea concentrated juice

A technology for Dendrobium officinale and tea concentrated juice, which is applied in the field of processing Dendrobium officinale leaf tea concentrated juice, and can solve the problems of underutilization of leaves, waste of resources and the like

Active Publication Date: 2020-12-29
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Dendrobium officinale has been widely promoted and planted in recent years, but consumers or manufacturers often pay more attention to the stems with medicinal value, while the leaves as non-medicinal parts are often not fully utilized, resulting in waste of resources

Method used

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  • A kind of processing method of dendrobium candidum leaf tea concentrated juice

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Experimental program
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Effect test

Embodiment 1

[0024] Wash 40 kg of fresh leaves of Dendrobium candidum in tap water, drain, soak in 0.05% (w / v) pectinase dilution solution for 45 minutes, drain and wither in hot air for 8 hours until the withering liquid The moisture content is 58%; the withered leaves are fixed with a hot air cleaning machine, the temperature of the cleaning treatment is 240°C, and the moisture content of the fixed leaves is 48%; after the leaves are cooled, they are kneaded with a 40-type kneading machine for 60 minutes until the iron sheet Dendrobium leaf juice overflows; knead the leaves for extraction (65°C, 90 minutes, leaf water ratio 1:5) treatment, the amount of cellulase in the extract is 0.1% (w / v), to obtain Dendrobium officinale leaf extract juice 175 kg. Use NaOH solution to adjust the pH value of the extract juice of Dendrobium officinale to 6.0, then use a microfiltration membrane (0.2 μm pore size) to filter, and then use a reverse osmosis membrane to concentrate the extract juice to a co...

Embodiment 2

[0028] Wash 60 kg of fresh Dendrobium officinale leaves in tap water, drain, soak in 0.01% (w / v) pectinase dilution solution for 90 minutes, drain and wither in natural wind for 72 hours until withering The water content of the liquid is 65%; the withered leaves are fixed with a hot air cleaning machine, the temperature of the cleaning treatment is 280 ° C, and the water content of the finished leaves is 52%; Leaf juice of Dendrobium officinale overflows; knead the leaves for extraction (45°C, 180 minutes, leaf water ratio 1:10), and add 0.05% (w / v) of cellulase in the extract to obtain Dendrobium officinale leaf extraction Juice 555 kg. Use NaOH solution to adjust the pH value of Dendrobium officinale leaf extract to 5.5, then filter it with a microfiltration membrane (0.2 μm pore size), and then use a reverse osmosis membrane to concentrate the extract juice to a concentrate with a solid content of 12°Brix . Finally, it was sterilized by UHT (135°C, 30 s), and hot-filled i...

Embodiment 3

[0032] Wash 50 kg of fresh leaves of Dendrobium candidum in tap water, drain, soak in 0.2% (w / v) pectinase dilution solution for 30 minutes, drain and wither in a blowing environment for 48 hours until withering The moisture content of the liquid is 55%; the withered leaves are fixed with a hot air cleaning machine, the temperature of the cleaning treatment is 260°C, and the moisture content of the finished leaves is 50%; The leaves were extracted (55°C, 120 minutes, leaf-to-water ratio 1:7), and the amount of cellulase added to the extract was 0.01% (w / v) to obtain 305 kg of Dendrobium officinale leaf extract. Using Na 2 CO 3 Solution Adjust the pH value of Dendrobium candidum leaf extract to 5.8, then filter it with a microfiltration membrane (0.2 μm pore size), and then use a reverse osmosis membrane to concentrate the extract juice to a concentrate with a solid content of 15°Brix. Finally, it was sterilized by UHT (135°C, 30 s), and hot-filled into Dendrobium officinale ...

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Abstract

The invention relates to a processing method of concentrated dendrobium candidum leaf tea juice, and belongs to the technical field of processing of dendrobium candidum. According to the processing method disclosed by the invention, dendrobium candidum leaves are used as raw materials, in a withering process, pectinase treatment is performed, then high-temperature hot-blast fixation and rolling are performed, further, auxiliary leaching is performed with cellulases, and then, leaching is performed, so that dendrobium candidum leaf leaching juice is obtained; and then the pH of the leaching juice is regulated to 5.5-6.0, and then filtering, concentration, sterilization and filling are performed, so that the concentrated dendrobium candidum leaf tea juice is obtained. The concentrated dendrobium candidum leaf tea juice processed by the method disclosed by the invention not only is high in yield, and good in flavor quality, but also has multiple health-care efficacies.

Description

technical field [0001] The invention belongs to the technical field of dendrobium candidum processing, and in particular relates to a method for processing dendrobium candidum leaf tea concentrated juice. Background technique [0002] Dendrobium officinale leaves are the dried leaves of Dendrobium officinale. Studies have shown that the active ingredients of Dendrobium officinale are mainly polysaccharides, which have the effects of enhancing immunity, anti-tumor, lowering blood fat, lowering blood sugar and anti-oxidation. Although the medicinal part of Dendrobium candidum is the plant stem, and the leaves are non-medicinal parts, there are literatures showing that the characteristic peaks of the HPLC fingerprints of Dendrobium candidum stems and leaves are basically the same, and the stems and leaves of Dendrobium candidum have the same Polysaccharide components, and the polysaccharide content of leaves is about one-third of that of stems. [0003] Dendrobium officinale h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23F3/34
CPCA23F3/34
Inventor 许勇泉尹军峰邹纯高颖陈建新
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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