CN103099839A - Rapid drying and storing method for keeping levodopa content of broad bean flowers - Google Patents
Rapid drying and storing method for keeping levodopa content of broad bean flowers Download PDFInfo
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- CN103099839A CN103099839A CN2013100239234A CN201310023923A CN103099839A CN 103099839 A CN103099839 A CN 103099839A CN 2013100239234 A CN2013100239234 A CN 2013100239234A CN 201310023923 A CN201310023923 A CN 201310023923A CN 103099839 A CN103099839 A CN 103099839A
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- viciae fabae
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Abstract
The invention relates to a rapid drying and storing method for keeping levodopa content of broad bean flowers. The rapid drying and storing method for keeping levodopa content of broad bean flowers comprises the following steps of: sorting materials; drying; and refrigerating at low temperature. According to the rapid drying and sorting method, by microwave vacuum drying, and meanwhile considering influences on broad bean flowers caused by drying temperature and microwave power under vacuum condition, the rapid drying and storing method for keeping levodopa content of the broad bean flowers provided by the invention has the advantages of high broad bean flower drying efficiency, short drying time, good heating uniformity, small influence on the levodopa content of the broad bean flowers through drying the broad bean flowers at lower temperature and the like; the used microwave power is low, and energy sources can be saved; the broad bean flowers are frozen or refrigerated at low temperature after vacuum drying, the levodopa content of the broad bean flowers is reduced slowly during the storage process, and the color of the broad bean flowers is not changed, so that the storage period of the broad bean flowers is prolonged.
Description
Technical field
The present invention relates to drying process and the storage procedures of Flos Viciae fabae, be specifically related to utilize a kind of rapid draing and storage procedures that keeps Flos Viciae fabae levodopa content of Flos Viciae fabae microwave vacuum drying process and low temperature cold storage technology.
Background technology
Flos Viciae fabae is the Traditional Folk Chinese crude drug, and property is flat, puckery, nontoxic." modern Practical Chinese medicinal " describes Flos Viciae fabae is the flower of leguminous plant Semen Viciae fabae.Gather when blooming around the Ching Ming Festival, dry, or oven dry.The ground such as Jiangsu, the main place of production, Zhejiang, Anhui, Sichuan.Pitchy, shrinkage is about 2 centimetres; Calyx is close to the corolla pipe, tip 5 slivers, every because of drying cataclasm and incomplete; The vexil of flower and is wrapped in ala and fossil fragments outside, and is curling because of shrinkage, is difficult for differentiating.Feeble QI is fragrant, and is lightly seasoned., atropurpureus person dry, complete take flower is as good." Suzhou this product medical material " thinks Flos Viciae fabae " sweet, flat ", " Traditional Chinese Medicine in Sichuan will " record Flos Viciae fabae " property is flat, puckery, nontoxic ", " Chinese herbal medicine commonly use in Shanghai " record Flos Viciae fabae " Gan Weixin puts down ".Flos Viciae fabae has the medicinal efficacies such as removing heat from blood, hemostasis, cures mainly hemoptysis, epistaxis, dysentery, leukorrhagia, hypertension." Shanghai City Chinese crude drug standard " (1994) have stipulated the Chinese medicine standard of Flos Viciae fabae.
Levodopa (L-3,4-dihydroxyphenylalanine, L-DOPA) extensively is present in the leguminous plants such as Semen Viciae fabae, cat bean.In plant, levodopa mainly produces by-product tyrosine by the phenylalanine approach, then forms through the tyrosine hydroxylase effect.Being one of precursor that synthesizes in the humans and animals body norepinephrine and dopamine, is classical antiparkinsonian drug, is used for clinically parkinsonian treatment.Flos Viciae fabae levodopa content far above broadbean seed, is also the vegetalitas resource of finding that so far levodopa content is the highest.
The Flos Viciae fabae collecting season often runs into continuous rainy weather, and air humidity is large, temperature is low, and the dehydration of naturally drying in the shade is slow, and phenomenons such as often causing brown stain, go rotten, be rotten has a strong impact on Flos Viciae fabae quality and appearance property.Usually adopt the hot air drying mode, baking temperature is low, and dewatering efficiency is low, and baking temperature is high, and the Flos Viciae fabae color is more black, and levodopa content significantly reduces.Show according to test, different hot air drying temperature are different to the Flos Viciae fabae dewatering efficiency, and Flos Viciae fabae is dried the time of moisture content below 13%, 85-100
oThe C oven dry is 1.5h, 70
oThe C oven dry needs 2h, and 55 ℃ of oven dry need 7.5h, 40
oThe C oven dry needs 22h.From Flos Viciae fabae levodopa content, hyperthermia drying significantly reduces Flos Viciae fabae levodopa content, the Flos Viciae fabae levodopa content of 40 ℃ of oven dry is 8.094 %, the Flos Viciae fabae levodopa content of 55 ℃ of oven dry is 7.313%, the Flos Viciae fabae levodopa content of 70 ℃ of oven dry is that the Flos Viciae fabae levodopa content of 6.284%, 85 ℃ of oven dry is that the Flos Viciae fabae levodopa content of 5.966%, 100 ℃ of oven dry is 5.342%, 66 % that are equivalent to 40 ℃ of oven dry, loss 1/3rd.Illustrate that bake out temperature has obvious impact to the content of levodopa.Flos Viciae fabae will prevent the levodopa loss as far as possible in dry and storage process.
Summary of the invention
Purpose of the present invention has the characteristics such as baking temperature is low, drying efficiency is high, heating uniformity is good, sterilization and disinsection for a kind of Flos Viciae fabae drying process of fast dewatering at a lower temperature is provided, and is little to Flos Viciae fabae levodopa content influence.And by regulating the temperature of storage environment, reach that the long period is preserved Flos Viciae fabae and the storage procedures that do not reduce levodopa content.
This method is by microwave vacuum drying process and low temperature cold storage technology, thereby guarantees that the levodopa composition in Flos Viciae fabae reduces the loss in rapid draing and storage process.
To achieve these goals, technical scheme of the present invention is:
This keeps rapid draing and the storage procedures of Flos Viciae fabae levodopa content, and it comprises the following steps:
Select materials: Flos Viciae fabae is Semen Viciae fabae inflorescence or the alabastrum that full-bloom stage is gathered and just opened;
Dry: as the Flos Viciae fabae Uniform Dispersion to be loaded in the rotating disk of microwave vacuum drying chamber, under ℃ condition of the temperature 45-55 in microwave power 500-700W and microwave vacuum drying chamber, Flos Viciae fabae to be carried out drying, be dried to the Flos Viciae fabae moisture content below 13%; This drying means Flos Viciae fabae levodopa content reduces 1.14-21.29% than before dry.
Low temperature cold storage: after dried Flos Viciae fabae sealing, in storing below 10 ℃.This storage procedures store Flos Viciae fabae after 6 months levodopa reduce less than 5.0%.
Preferably, in described drying steps, under the temperature 45 C condition in microwave power 500W and microwave vacuum drying chamber, Flos Viciae fabae is carried out drying, be dried to the Flos Viciae fabae moisture content below 13%.
Further, in described low temperature cold storage step, after dried Flos Viciae fabae sealing, in storing below 0 ℃.
Microwave vacuum drying technology is that microwave drying and two dry technologies of vacuum drying are combined, utilize dielectric heating principle, make the whole heating of heating object, the saturation temperature (boiling point) of wet stock contained humidity reduces under vacuum condition simultaneously, make material rapid draing at a lower temperature, the nutritional labeling of preserving preferably material simultaneously.
The present invention adopts above technical scheme: pass through microwave vacuum drying, under vacuum condition, consider that simultaneously baking temperature and microwave power are on the impact of Flos Viciae fabae, the present invention has that the Flos Viciae fabae drying efficiency is high, drying time is short, heating uniformity reaches at a lower temperature well Flos Viciae fabae is carried out drying, to advantages such as its levodopa content influence are little, microwave power used is low, but energy savings.After the Flos Viciae fabae microwave vacuum drying to it freezing or deepfreeze, Flos Viciae fabae levodopa content reduces slowly at storage process, the Flos Viciae fabae color and luster remains unchanged, thereby extends the storage life of Flos Viciae fabae.
The specific embodiment
The present invention includes following steps:
Select materials: Flos Viciae fabae is Semen Viciae fabae inflorescence or the alabastrum that full-bloom stage is gathered and just opened; Dry: as the Flos Viciae fabae Uniform Dispersion to be loaded in the rotating disk of microwave vacuum drying chamber, under ℃ condition of the temperature 45-55 in microwave power 500-700W and microwave vacuum drying chamber, Flos Viciae fabae to be carried out drying, be dried to the Flos Viciae fabae moisture content below 13%; This drying means Flos Viciae fabae levodopa content reduces 1.14-21.29% than before dry.
Low temperature cold storage: after dried Flos Viciae fabae sealing, in storing below 10 ℃.This storage procedures stores that after 6 months, the Flos Viciae fabae levodopa reduces less than 5.0%.
Preferably, in described drying steps, under the temperature 45 C condition in microwave power 500W and microwave vacuum drying chamber, Flos Viciae fabae is carried out drying, be dried to the Flos Viciae fabae moisture content below 13%, Flos Viciae fabae levodopa content reduces by 1.14% than before dry.
Further, in described low temperature cold storage step, after dried Flos Viciae fabae sealing, in storing below 0 ℃.
The present invention is further described below in conjunction with specific embodiment:
Embodiment 1
This keeps rapid draing and the storage procedures of Flos Viciae fabae levodopa content, and it comprises the following steps:
Select materials: Flos Viciae fabae is Semen Viciae fabae inflorescence or the alabastrum that full-bloom stage is gathered and opened;
Dry: as to get the Flos Viciae fabae 50g of initial moisture content 87.94%, evenly spread in 0.12m
2On the charging tray of microwave vacuum drying chamber, at vacuum-0.097MPa, under the temperature 45 C condition in microwave power 500W and microwave vacuum drying chamber, Flos Viciae fabae is carried out drying, be dried to the Flos Viciae fabae moisture content below 13%, 45min consuming time; Flos Viciae fabae levodopa content 8.403% has reduced by 1.14% than (Flos Viciae fabae levodopa content is 8.5%) before dry.
Chilled storage: will be dried be positioned over after the Flos Viciae fabae sealing in the refrigerator-freezer below 0 ℃ and store, stores and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 4.0%.
Deepfreeze: store being positioned under 0-10 ℃ of low temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 4.8%; Store being positioned under 10-16 ℃ of low temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 14.0%.
Room temperature is deposited: store being positioned under room temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 29.0%.
Embodiment 2
This keeps rapid draing and the storage procedures of Flos Viciae fabae levodopa content, and it comprises the following steps:
Select materials: Flos Viciae fabae is Semen Viciae fabae inflorescence or the alabastrum that full-bloom stage is gathered and opened;
Dry: as to get the Flos Viciae fabae 50g of initial moisture content 87.94%, evenly spread in 0.12m
2On the charging tray of microwave vacuum drying chamber, at vacuum-0.097MPa, under the temperature 50 C condition in microwave power 600W and microwave vacuum drying chamber, Flos Viciae fabae is carried out drying, be dried to the Flos Viciae fabae moisture content below 13%, 30min consuming time; Flos Viciae fabae levodopa content 7.620% has reduced by 10.35% than (Flos Viciae fabae levodopa content is 8.5%) before dry.
Chilled storage: will be dried be positioned over after the Flos Viciae fabae sealing in the refrigerator-freezer below 0 ℃ and store, stores and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 4.2%.
Deepfreeze: store being positioned under 0-10 ℃ of low temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 4.9%; Store being positioned under 10-16 ℃ of low temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 14.6%.
Room temperature is deposited: store being positioned under room temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 31.0%.
Embodiment 3
This keeps rapid draing and the storage procedures of Flos Viciae fabae levodopa content, and it comprises the following steps:
Select materials: Flos Viciae fabae is Semen Viciae fabae inflorescence or the alabastrum that full-bloom stage is gathered and opened;
Dry: as to get the Flos Viciae fabae 50g of initial moisture content 87.94%, evenly spread in 0.12m
2On the charging tray of microwave vacuum drying chamber, under 55 ℃ of conditions of temperature in microwave power 700W and microwave vacuum drying chamber, Flos Viciae fabae is carried out drying, be dried to the Flos Viciae fabae moisture content below 13%, 15min consuming time, Flos Viciae fabae is dried to identical moisture content, and the present invention is 1/30 of 55 ℃ of hot air drying times the time used; Flos Viciae fabae levodopa content 6.690% has reduced by 21.29% than (Flos Viciae fabae levodopa content is 8.5%) before dry.
Chilled storage: will be dried be positioned over after the Flos Viciae fabae sealing in the refrigerator-freezer below 0 ℃ and store, stores and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 4.5%.
Deepfreeze: store being positioned under 0-10 ℃ of low temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 5.0%; Store being positioned under 10-16 ℃ of low temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 16.2%.
Room temperature is deposited: store being positioned under room temperature after the sealing of dried Flos Viciae fabae, store and measure Flos Viciae fabae levodopa content after 6 months, with store before compare, levodopa content reduction by 33.2%.
Claims (3)
1. rapid draing and storage procedures that keeps Flos Viciae fabae levodopa content, it is characterized in that: it comprises the following steps:
Select materials: Flos Viciae fabae is Semen Viciae fabae inflorescence or the alabastrum that full-bloom stage is gathered and just opened;
Dry: as the Flos Viciae fabae Uniform Dispersion to be loaded in the rotating disk of microwave vacuum drying chamber, under ℃ condition of the temperature 45-55 in microwave power 500-700W and microwave vacuum drying chamber, Flos Viciae fabae to be carried out drying, be dried to the Flos Viciae fabae moisture content below 13%;
Low temperature cold storage: after dried Flos Viciae fabae sealing, in storing below 10 ℃.
2. a kind of rapid draing and storage procedures that keeps Flos Viciae fabae levodopa content according to claim 1, it is characterized in that: in described drying steps, under temperature 45 C condition in microwave power 500W and microwave vacuum drying chamber, Flos Viciae fabae is carried out drying, be dried to the Flos Viciae fabae moisture content below 13%.
3. a kind of rapid draing and storage procedures that keeps Flos Viciae fabae levodopa content according to claim 1 and 2 is characterized in that: in described low temperature cold storage step, after dried Flos Viciae fabae sealing, in storing below 0 ℃.
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| CN2013100239234A CN103099839A (en) | 2013-01-23 | 2013-01-23 | Rapid drying and storing method for keeping levodopa content of broad bean flowers |
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| CN2013100239234A CN103099839A (en) | 2013-01-23 | 2013-01-23 | Rapid drying and storing method for keeping levodopa content of broad bean flowers |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104186288A (en) * | 2014-08-13 | 2014-12-10 | 福建省农业科学院作物研究所 | LED light source cultivation method for improving levodopa content of broad bean sprouts |
| CN104489668A (en) * | 2014-12-12 | 2015-04-08 | 重庆市农业科学院 | Method for preparing rapidly rehydrated broad bean flowers |
| CN111561805A (en) * | 2020-06-03 | 2020-08-21 | 云南昊辰食品有限公司 | Microwave vacuum drying method for improving quality of Chinese angelica |
| CN114340399A (en) * | 2019-08-30 | 2022-04-12 | 微波化学有限公司 | Roasted cocoa beans and method for roasting raw cocoa beans |
-
2013
- 2013-01-23 CN CN2013100239234A patent/CN103099839A/en active Pending
Non-Patent Citations (2)
| Title |
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| 曹奕鸯: "《中国优秀硕士学位论文全文数据库 农业科技辑》", 15 April 2011 * |
| 朱宏吉等: "《制药设备与工程设计》", 30 June 2004, 化学制药机械 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104186288A (en) * | 2014-08-13 | 2014-12-10 | 福建省农业科学院作物研究所 | LED light source cultivation method for improving levodopa content of broad bean sprouts |
| CN104186288B (en) * | 2014-08-13 | 2015-12-02 | 福建省农业科学院作物研究所 | A kind of LED light source cultivation method improving broad bean shoot vegetable levodopa content |
| CN104489668A (en) * | 2014-12-12 | 2015-04-08 | 重庆市农业科学院 | Method for preparing rapidly rehydrated broad bean flowers |
| CN104489668B (en) * | 2014-12-12 | 2016-06-29 | 重庆市农业科学院 | A kind of preparation method of fast rehydrating Flos Viciae fabae |
| CN114340399A (en) * | 2019-08-30 | 2022-04-12 | 微波化学有限公司 | Roasted cocoa beans and method for roasting raw cocoa beans |
| CN111561805A (en) * | 2020-06-03 | 2020-08-21 | 云南昊辰食品有限公司 | Microwave vacuum drying method for improving quality of Chinese angelica |
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Application publication date: 20130515 |