Vaccinium beacteatum Thunb freeze-dried powder injection and its preparation method and application

A technology of freeze-dried powder and black rice leaves, which is applied in the direction of food preparation, application, powder transportation, etc., can solve the problems of single variety, limited application, backward development and utilization, etc., and achieve less loss of nutrients, good stability, and easy long-term saved effect

Inactive Publication Date: 2008-01-09
INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of leaf that can maintain the biological activity and characteristics, color, flavor and nutritional components of black rice tree, which is produced by vacuum freeze-drying method, aiming at the shortcomings of current folk black rice leaf application limitation, single variety, and relatively backward development and utilization. Concentrated powder of Wufan leaves

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Gather 2250 grams of fresh black rice leaves, carry out preliminary sorting and leave 2020 grams, wash and break, then add 2000 milliliters of pure water, squeeze the juice of black rice leaves, get fresh juice 900 grams, remove some impurities after filtering, and then Carry out centrifugation, the juice of the centrifuged black rice leaf is concentrated, obtains 883 grams of concentrated juices. Transfer the juice of the concentrated black rice leaves into a freeze dryer for pre-freezing, and freeze to a temperature of -20°C within 3 hours to ensure that all the moisture in the material is frozen. Start vacuuming to 10Pa, freeze-dry at -50°C for 36 hours to obtain a dry solid with a residual moisture of 0-8%, put it in an environment with a relative humidity of less than 50%, and pulverize it to obtain the present invention 268 grams of black rice tree freeze-dried powder. The yield of freeze-dried powder is 13.26%.

Embodiment 2

[0027] Gather 2550 grams of fresh black rice leaves, carry out preliminary sorting and leave 2220 grams, wash and break, then add 3000 milliliters of pure water, squeeze the juice of black rice leaves, get fresh juice 2000 grams, remove some impurities after filtering, and then Carry out centrifugation, the juice of the centrifuged black rice leaf is concentrated, obtains 1960 grams of concentrated juices. Transfer the juice of the concentrated black rice leaves to a freeze dryer for pre-freezing, and freeze to a temperature of -20°C within 4 hours to ensure that all the moisture in the material is frozen. Start vacuuming to 6Pa, freeze-dry for 31 hours at a temperature of -50°C to obtain a dry solid with a residual moisture of 0-8%, place it in an environment with a relative humidity of less than 50%, and pulverize it to obtain the present invention 332 grams of black rice tree freeze-dried powder. The yield of freeze-dried powder is 14.96%.

Embodiment 3

[0029] Take 1 gram of the black rice tree freeze-dried powder of Example 1, dissolve it in 100 milliliters of water and turn it into a yellow-green liquid, pack 100 grams of glutinous rice or japonica rice that has been washed clean, into bags, soak in the juice overnight and drain, the usual method Boil it or steam it in a cage to get black rice. The prepared black rice is blue-black, the rice grains are translucent and transparent, and emits a delicate fragrance.

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PUM

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Abstract

The present invention discloses a vacinium bracteatum leaf freeze-dried powder, its preparation method and application. Said preparation method includes the following steps: collecting vaccinium bracteatum leaves, sorting, cleaning, breaking, pressing to obtain vaccinium bracteatum leaf juice, filtering, removing impurity, making centrifugal purification, concentrating, vacuum freeze-drying to obtain dried solid, pulverizing to obtain the invented vaccinium bracteatum leaf freeze-dried powder. It can be directly made into various health-care foods of vaccinium bracteatum wine and vaccinium bracteatum beverage, etc.

Description

technical field [0001] The invention belongs to the technical field of food processing, and in particular relates to a freeze-dried black rice leaf powder with health care function and its preparation method and application. Background technique [0002] Vaccinium bracteatum Thunb. is an evergreen shrub of the Rhododendronaceae Vaccinium bracteatum. It was known as dyed shrub in ancient times, commonly known as Nanzhuye, Mofanye, also known as beef tendon, black rice grass, Nanzhu, Nanxu, dyed pepper, sand lotus seed, rice flower, etc. Its roots, leaves and fruits can be used as medicine. It was first recorded in "Kaibao Materia Medica" in the Song Dynasty, which said: "The branches and leaves are bitter and flat, non-toxic, relieve diarrhea, eliminate sleepiness, strengthen muscles and strengthen energy, take long-term clothes to lighten the body, and make people not hungry for many years, and turn white to age. ....Its son is Nanzhuzi. It can strengthen muscles and bones...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L1/29A23P1/06A61K36/45A61K9/14A61P13/12A61P15/00A61P19/00A61P27/02A61P17/00A23L33/00A23P10/40
Inventor 徐增莱汪琼於虹贺善安陈重明史云云
Owner INST OF BOTANY JIANGSU PROVINCE & CHINESE ACADEMY OF SCI
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