CN1063485C - Method for extracting plant alkaline protease - Google Patents

Method for extracting plant alkaline protease Download PDF

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Publication number
CN1063485C
CN1063485C CN 91103165 CN91103165A CN1063485C CN 1063485 C CN1063485 C CN 1063485C CN 91103165 CN91103165 CN 91103165 CN 91103165 A CN91103165 A CN 91103165A CN 1063485 C CN1063485 C CN 1063485C
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CN
China
Prior art keywords
yucca
enzyme
blade
proteolytic enzyme
extracting method
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 91103165
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Chinese (zh)
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CN1066469A (en
Inventor
叶启腾
陈强
李春香
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GUANGXI SUB-TROPICAL CROPS RESEARCH INSTITUTE
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GUANGXI SUB-TROPICAL CROPS RESEARCH INSTITUTE
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Priority to CN 91103165 priority Critical patent/CN1063485C/en
Publication of CN1066469A publication Critical patent/CN1066469A/en
Application granted granted Critical
Publication of CN1063485C publication Critical patent/CN1063485C/en
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  • Enzymes And Modification Thereof (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)

Abstract

A method for extracting alkaline protease from plant comprises directly drying Grating tissue of leaf surface to obtain crude enzyme product, or squeezing juice, centrifuging, and salting out with ammonium sulfate to obtain enzyme preparation. The method is simple and practical, and the prepared yucca protease is suitable for pH 7-12.5 and has the highest activity at the pH 12. The enzyme can be used in detergent, fruit juice clarification, etc.

Description

A kind of extracting method of plant alkalescence proteolytic enzyme
The present invention relates to a kind of method of from plant, extracting new proteolytic enzyme.
Zymin has been widely used on industrial production.It is abundant that plant protease generally has source resource, cheap characteristics.Thereby easily developed in a large number.Plant protease of selling on the market such as papoid, bromeline, ficin etc. just are widely used in that silk comes unstuck, aspect such as leather depilation, clarify beer, tenderization and medicine.
Proteolytic enzyme has different special nature, has determined they self application valency to plant.Commercially available plant protease all is the proteolytic enzyme of neutral slant acidity at present, and is more stable under the neutral slant acidity condition of pH, just devitalization easily under alkaline condition.The extracting method of known plants proteolytic enzyme is different different because of plant, is to extract the effusive juice of fruit surface again through preparation as caricin; Bromeline is to get fruit or cane to press juice, again through saltout, technology such as filtration, chromatography carry out separation and purification, obtain fruit enzyme and stem enzyme respectively.
The objective of the invention is to seek that the simple extraction process of a kind of usefulness is prepared, under the pH alkaline condition the stable new plant albumen enzyme of enzyme activity.
The scheme that the object of the invention realizes is that to adopt Liliaceae (LILIACEAE) Yucca (YUCCA) plant leaf be raw material, and blade is cleaned airing, scrapes and gets green palisade tissue, directly palisade tissue is ground into the enzyme raw product after with warm air drying.Or scrape by above-mentioned technology and to press leaf after getting palisade tissue, add the water of one times of juice amount, left standstill centrifugal removal suspended substance 10 minutes.Clear liquid adds ammonium sulfate by 8% weight ratio and leaves standstill centrifugal removal precipitation after about 4 hours.Supernatant liquor is supplied ammonium sulfate to 50% saturation ratio.Leave standstill centrifugal collecting precipitation after 12 hours, vacuumize and be lyophilized into zymin.
The present invention adopts yucca spp to make the enzyme extraction raw material, and its kind is filamentosa, golden-rimmed yucca (Golden side Yucca).Plain edge yucca (Bare leaf Yucca) and gloriosa, through survey above-mentioned 4 kind of plant enzymic activitys with the DHT-Casain method, gloriosa kind activity is the highest.In the blade of gloriosa kind, enzyme mainly is present in normal expansion, the growth normal healthy leaf, and that not open white tender leaf and withered Lao Ye contain the enzyme amount is few.
Extract the yucca plant protease of preparation with the inventive method.Adapt to the pH scope in PH7~12.5, enzymic activity is the highest during pH12.This enzyme proves two proteolytic enzyme components through polyacrylamide gel electrophoresis, and the thin layer isoelectric focusing electrophoresis confirms that these two component iso-electric points respectively are pH9.77 and 9.61.The yucca plant protease can be used for aspects such as washing composition, juice clarification.
The present invention directly scrapes and gets yucca plant leaf palisade tissue drying and make the enzyme raw product, method is simple and practical, broken through the complicated technology that vegetable-protein enzyme extraction is in the past adopted, made enzyme raw product is active high, still stable under the pH alkaline condition, can be directly used in fields such as washing powder production.
Embodiment 1:
Get 30.05 kilograms in the ripe healthy blade of gloriosa, scrape and get 12.6 kilograms of green palisade tissues.Scrape get thing and put-mesh is in the mesh bag of 1 * 1 (mm), is dried to moisture content<7% o'clock in the warm air drying room under 55 ℃, get dry thing with ball mill pulverize 3.94 kilograms of powdery enzyme raw product, surveying activity with DHT-casein method is 15718 μ/grams.
Embodiment 2:
Get 15 kilograms in ripe healthy golden-rimmed yucca blade, scrape and get 6.1 kilograms of green palisade tissues, make 1.87 kilograms of powdery enzyme raw product by embodiment 1 method, activity is 8700 μ/grams.
Embodiment 3:
Get 17 kilograms in ripe healthy light leaf yucca blade, scrape and get 7.0 kilograms of green palisade tissues, make 2.03 kilograms of powdery enzyme raw product by embodiment 1 method, activity is 9500 μ/grams.
Embodiment 4:
Get 3.2 kilograms in ripe healthy yucca fiber crops blade, scrape and get 0.97 kilogram of green palisade tissue, 410 milliliters of extracting juices, getting supernatant water after the juice centrifugal (2000 rev/mins) doubles behind the deionized water, take by weighing the ammonium sulfate of juice amount 8%, slowly add and be stirred to dissolving in the juice, continue again to stir centrifugal after room temperature leaves standstill 4 hours (2000 rev/mins) 10 minutes.Get the ammonium sulfate precipitation that supernatant water is added to 50% saturation ratio again, leave standstill centrifugal after 12 hours (2000 rev/mins), the collecting precipitation thing gets enzyme and sticks with paste 0.082 kilogram.Enzyme is stuck with paste and is got 0.043 kilogram of zymin through vacuum lyophilization, and surveying activity with DHT-casein method is 51300 μ/grams.

Claims (3)

1. the extracting method of a plant alkalescence proteolytic enzyme.It is characterized in that adopting the yucca spp blade is raw material, and blade is cleaned airing, scrapes and gets green palisade tissue, and palisade tissue is ground into the enzyme raw product after with warm air drying; Or palisade tissue squeezed the juice, adding centrifugal removal suspended substance behind the water of one times of juice amount, clear liquid adds ammonium sulfate by 8% weight ratio and leaves standstill the centrifugal removal precipitation in back, and supernatant liquor is supplied ammonium sulfate to 50% saturation ratio, leaves standstill the back centrifugal collecting precipitation, vacuumizes into zymin.
2. according to the extracting method of the described plant alkalescence proteolytic enzyme of claim 1, it is characterized in that using fila-mentosa, golden-rimmed yucca (Golden side yucca), plain edge yucca, (Bare leaf yucca) and glo-riosa make raw material.
3. according to the extracting method of claim 1 or 2 described plant alkalescence proteolytic enzyme.It is characterized in that adopting normal expansion, growth normal healthy blade.
CN 91103165 1991-05-09 1991-05-09 Method for extracting plant alkaline protease Expired - Fee Related CN1063485C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 91103165 CN1063485C (en) 1991-05-09 1991-05-09 Method for extracting plant alkaline protease

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 91103165 CN1063485C (en) 1991-05-09 1991-05-09 Method for extracting plant alkaline protease

Publications (2)

Publication Number Publication Date
CN1066469A CN1066469A (en) 1992-11-25
CN1063485C true CN1063485C (en) 2001-03-21

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CN 91103165 Expired - Fee Related CN1063485C (en) 1991-05-09 1991-05-09 Method for extracting plant alkaline protease

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787360B (en) * 2010-01-20 2012-01-04 云南万芳生物技术有限公司 Tobacco processing active complex enzyme preparation for improving and enhancing tobacco quality and preparation method thereof

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101785578B (en) * 2010-01-14 2014-07-30 云南万芳生物技术有限公司 Enzyme preparation using glucose oxidase as assistant for tobacco processing and preparation and application method
CN103468780B (en) * 2013-09-16 2015-07-29 张家港市金源生物化工有限公司 A kind of aspartic protease is saltoutd the detection method of effect
CN115583710A (en) * 2022-07-19 2023-01-10 江苏驰佳环保科技有限公司 Chelating agent and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101787360B (en) * 2010-01-20 2012-01-04 云南万芳生物技术有限公司 Tobacco processing active complex enzyme preparation for improving and enhancing tobacco quality and preparation method thereof

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Publication number Publication date
CN1066469A (en) 1992-11-25

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C15 Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993)
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C19 Lapse of patent right due to non-payment of the annual fee
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