CN107271393A - A kind of detection method of Fast Evaluation ferment fat-reducing effect - Google Patents

A kind of detection method of Fast Evaluation ferment fat-reducing effect Download PDF

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Publication number
CN107271393A
CN107271393A CN201710563972.5A CN201710563972A CN107271393A CN 107271393 A CN107271393 A CN 107271393A CN 201710563972 A CN201710563972 A CN 201710563972A CN 107271393 A CN107271393 A CN 107271393A
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China
Prior art keywords
ferment
fat
enzyme activity
reducing effect
detection method
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CN201710563972.5A
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Inventor
陈聪
许伟铭
邢丽娜
李岩
崔淑莲
唐浩
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Guangdong Lingnan Institute of Technology
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Guangdong Lingnan Institute of Technology
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/33Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light

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  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

The invention belongs to detect inspection technology field, a kind of detection method of Fast Evaluation ferment fat-reducing effect is disclosed.Detection method obtains enzyme activity by the amount of analytical unit time endo enzyme decomposition glucose so as to calculate, and is evaluated.Enzyme activity is 1mL or 1g ferment breakdown of glucose amount hourly.Evaluation criterion is (μm ol/h):Enzyme activity >=60,4 grade;40≤enzyme activity<60,3 grades;20≤enzyme activity<40,2 grades;0≤enzyme activity<20,1 grades;Enzyme activity<0,0 grade.The present invention carries out lateral comparison by carrying out glucolase vigor test to ferment, reflects its fat-reducing effect.First using the decrement of glucose in the enzyme phenol oxidizing process analytical unit time in method, detection method is easy to operate, and speed of experiment is fast, and sensitivity is high.Reflect the ability of the decomposition sugar of the ferment of unit quantity with glucose decrement, calculate ferment enzyme activity to evaluate its fat-reducing effect with this.

Description

A kind of detection method of Fast Evaluation ferment fat-reducing effect
Technical field
The invention belongs to detect inspection technology field, more particularly to a kind of detection side of Fast Evaluation ferment fat-reducing effect Method.
Background technology
Ferment (enzyme) is also known as enzyme, be can in organism produced by the active macromolecules with catalytic action. Recently as the development of society, people are more and more stronger to self health perception and health care consciousness, and market is upper recently Go a kind of commodity --- pectase, it, which is turned on, can eliminate the effects such as halitosis, abdomen, small pox and constipation, but at present still There is no any detection method to can determine that its effect and security.
Ferment extensively liked as a kind of emerging product by consumer, but the good and bad jumbled together for ferment product on the market, portion The exaggeration of point advertising effect, wherein just including ferment has this saying of weight losing function, and the detection in this industry to ferment Standard is still in a blank, and consumer is also to its concept obfuscation.
Fat main cause is because hoarding for fat is excessive, so as to easily trigger the diseases such as hypertension.Human body lactones The main source of fat comes from the sugared decomposition of intake.So under normal operation, it is more that carbohydrate is taken in, what body weight rose gets over It hurry up.
The content of the invention
In order to overcome the shortcomings and deficiencies of the prior art described above, primary and foremost purpose of the invention is to provide a kind of Fast Evaluation The detection method of ferment fat-reducing effect.
The present invention is detected by determining capacity of decomposition of the ferment to glucose within the unit interval, and carries out quantitative pair Than for evaluating its fat-reducing effect.
The purpose of the present invention is realized by following proposal:
A kind of detection method of Fast Evaluation ferment fat-reducing effect, passes through analytical unit time endo enzyme decomposition glucose Amount obtains enzyme activity so as to calculate, and is evaluated.
Described enzyme activity is 1mL the or 1g ferment breakdown of glucose amount of 1 hour.
Evaluation criterion is:
Enzyme activity >=60 μm ol/h, 4 grades;
40 μm of ol/h≤enzyme activities<60 μm of ol/h, 3 grades;
20 μm of ol/h≤enzyme activities<40 μm of ol/h, 2 grades;
0 μm of ol/h≤enzyme activity<20 μm of ol/h, 1 grade;
Enzyme activity<0 μm of ol/h, 0 grade.
Represent that the ferment has notable fat-reducing effect when evaluation result is 4 grades;
Represent that the ferment has stronger fat-reducing effect when evaluation result is 3 grades;
Represent that the ferment has fat-reducing effect when evaluation result is 2 grades, but effect is general;
Represent that the ferment has weaker fat-reducing effect when evaluation result is 1 grade;
Represent that the ferment hardly possesses weight losing function when evaluation result is 0 grade, or even itself contains sugar.
Above-mentioned detection method is specially:By the amount of ultraviolet spectrometry analytical unit time endo enzyme decomposition glucose so as to Calculating obtains enzyme activity, and is evaluated.
Described referred to by ultraviolet spectrometry determines light absorption value after decomposition, reference standard curve, concentration after being decomposed, according to The amount that concentration conversion is decomposed before decomposing, obtains enzyme activity, and evaluated so as to calculate.
More specifically it may include following steps:By the way that ferment is added in glucose solution, 37 DEG C of water-baths, boiling water bath goes out It is living, enzyme phenol reagent is added, 37 DEG C of water-bath insulation reactions determine its light absorption value, calculating obtains enzyme activity, and is evaluated.
The time (i.e. ferment adds the glucose sugar juice reaction time) of 37 DEG C of water-baths can adjust as needed, such as Can be 30min, enzyme activity is converted to decomposition amount hourly during final evaluation.
The time of the inactivation is Conventional Time, such as 1min.
The time for adding insulation reaction after enzyme phenol reagent is preferably 10min.
The enzyme phenol reagent is the enzyme phenol reagent of conventional determining concentration of glucose.
The measure UV absorption is determined preferably at 500nm.
The inventive method obtains enzyme activity by the amount of analytical unit time endo enzyme decomposition glucose so as to calculate, and goes forward side by side Row is evaluated.
Detection method can be carried out anti-using Glucose estimation kit (glucose oxidase method/single reagent method) Should, the ability of ferment decomposition glucose is measured indirectly.In the available reagent box of this area solution is calibrated containing Glucose standards (5.55mmol/L), glucose standards solution (10.00mmol/L), Glucose standards storing solution (100.00mmol/L), enzyme phenol Mix reagent.Operated according to kit specification requirement, wherein, the time of insulation reaction is after addition enzyme phenol reagent 10min。
The principle of the invention:Glucose oxidase (GOD) catalysis glucose is oxidized to gluconic acid (in maltonic acid δ Ester), and produce hydrogen peroxide:
Glucose+2H2O+O2→ gluconic acid+2H2O2
H2O2+ 4- amino antipyrine → red quinones+H2O
In the presence of chromogenic oxygen acceptor (such as dianisidine, 4-AA phenazo), peroxidase Catalyzing hydrogen peroxide, aoxidizes chromogen substance, generates colored compound.Its shade contains with serum glucose within the specific limits Amount is directly proportional, and absorbance is determined at 500nm, concentration of glucose can be measured by being compared with standard pipe.
The present invention can convert according to original liquid concentration and be decomposed by determining concentration of glucose after the quantitative ferment reaction of addition The amount of glucose reduction, enzyme activity is obtained so as to calculate, and ferment fat-reducing effect is evaluated with this.
The present invention carries out lateral comparison by carrying out glucolase vigor test to multiple ferment samples, reflects that it subtracts Fertilizer efficiency fruit.First using the decrement of glucose in the enzyme phenol oxidizing process analytical unit time in method, detection method is easy to operate, Speed of experiment is fast, and sensitivity is high.Reflect the ability of the decomposition sugar of the ferment of unit quantity with glucose decrement, calculated with this Ferment enzyme activity is to evaluate its fat-reducing effect.
Brief description of the drawings
Fig. 1 is enzyme activity determination standard curve, wherein, y=0.0486x+0.0148, R2=0.9793.
Embodiment
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this. The material being related in the following example can be obtained from commercial channel.
The measure of standard curve:
Precision weighs dextrose standard sample 1.8016g, is dissolved in water, and is transferred in 1L volumetric flasks, is settled to graduation mark, i.e., Into 10mmol/L Glucose standards storing solutions, every milliliter of μ g containing glucose 1801.6.
Take Glucose standards storing solution 0mL, 5mL, 10mL, 15mL, 20mL in 100mL volumetric flasks respectively, add water to quarter It (is that 0.0mmol/L, 5.0mmol/L, 10.0mmol/L, 15.0mmol/L, 20.0mmol/L glucose are molten equivalent to concentration to spend line Liquid).20 μ L are respectively taken in test tube, 3.0mL enzyme phenol mix reagent (Zhejiang Eastern Europe) is added, 37 DEG C of water-baths are incubated 10min. Its light absorption value is determined at 500nm, record draws standard curve, sees Fig. 1.
The measure of sample:Using Glucose estimation kit (glucose oxidase method/single reagent method), wherein containing grape Standard for Sugars calibration solution (5.55mmol/L), glucose standards solution (10.00mmol/L), Glucose standards storing solution (100.00mmol/L), distilled water, enzyme phenol mix reagent.
The sample commercially available to 7 is measured:4mL glucose standards solutions are taken, 1.0mL ferment, 37 DEG C of water is separately added into Bath reaction 30min, boiling water bath inactivation 1min, enzyme-added phenol reagent, 37 DEG C of water-baths are incubated 10min, its extinction are determined at 500nm Value, adds 1.0mL ferment using 4mL distilled water and is managed as calibration, calculating obtains enzyme activity, and is evaluated.
1st, glucose reduces concentration (mmol/L)
In formula:c0For glucose standards solution concentration;csSolution concentration is calibrated for Glucose standards;A1To determine pipe extinction Degree;AsFor calibration pipe absorbance.
2、
In formula:c1By reduction concentration of glucose;V is sample pretreatment volume;Δ t be sample processing time (i.e. plus Enter the water-bath time after ferment).
3rd, result of calculation, is shown in Table 1~3.
The concentration of standard solution of table 1 determines table
The calibration solution absorbance measurement table of table 2
Sample number into spectrum 1 2 3 4 5 6 7
Absorbance A 0.024 0.024 0.122 0.348 0.013 0.016 0.033
The sample enzyme activity determination table of table 3
It can be seen from enzyme activity compares evaluation criterion:
The enzyme activity of sample 1 (μm ol/h)=72.813,4 grade.
The enzyme activity of sample 2 (μm ol/h)=39.473,2 grade.
The enzyme activity of sample 3 (μm mol/h)=5.846,1 grade.
The enzyme activity of sample 4 (μm ol/h)=17.361,1 grade.
The enzyme activity of sample 5 (μm ol/h)=5.386,1 grade.
The enzyme activity of sample 6 (μm ol/h)=28.480,2 grade.
The enzyme activity of sample 7 (μm ol/h)=- 0.367,0 grade.
Evaluation criterion:
Enzyme activity >=60 μm ol/h, 4 grades;
40 μm of ol/h≤enzyme activities<60 μm of ol/h, 3 grades;
20 μm of ol/h≤enzyme activities<40 μm of ol/h, 2 grades;
0 μm of ol/h≤enzyme activity<20 μm of ol/h, 1 grade;
Enzyme activity<0 μm of ol/h, 0 grade.
Represent that the ferment has notable fat-reducing effect when evaluation result is 4 grades;
Represent that the ferment has stronger fat-reducing effect when evaluation result is 3 grades;
Represent that the ferment has fat-reducing effect when evaluation result is 2 grades, but effect is general;
Represent that the ferment has weaker fat-reducing effect when evaluation result is 1 grade;
Represent that the ferment hardly possesses weight losing function when evaluation result is 0 grade, or even itself contains sugar.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (10)

1. a kind of detection method of Fast Evaluation ferment fat-reducing effect, it is characterised in that decomposed by analytical unit time endo enzyme The amount of glucose obtains enzyme activity so as to calculate, and is evaluated.
2. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 1, it is characterised in that:Described enzyme activity Power is 1mL the or 1g ferment breakdown of glucose amount of 1 hour.
3. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 1, it is characterised in that evaluation criterion is:
Enzyme activity >=60 μm ol/h, 4 grades;
40 μm of ol/h≤enzyme activities<60 μm of ol/h, 3 grades;
20 μm of ol/h≤enzyme activities<40 μm of ol/h, 2 grades;
0 μm of ol/h≤enzyme activity<20 μm of ol/h, 1 grade;
Enzyme activity<0 μm of ol/h, 0 grade.
4. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 1, it is characterised in that be specially:Pass through The amount of ultraviolet spectrometry analytical unit time endo enzyme decomposition glucose obtains enzyme activity so as to calculate, and is evaluated.
5. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 4, it is characterised in that:It is described to pass through purple Outer optical spectroscopy refers to light absorption value after measure is decomposed, and reference standard curve, concentration after being decomposed is obtained according to concentration conversion before decomposition The amount of decomposition, obtains enzyme activity, and evaluated so as to calculate.
6. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 1, it is characterised in that specifically include with Lower step:By the way that ferment is added in glucose solution, 37 DEG C of water-baths, boiling water bath inactivation adds enzyme phenol reagent, 37 DEG C of water Insulation reaction is bathed, its light absorption value is determined, calculating obtains enzyme activity, and is evaluated.
7. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 6, it is characterised in that:37 DEG C of water The time of bath reaction is 30min.
8. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 6, it is characterised in that:The inactivation Time is 1min.
9. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 6, it is characterised in that:The addition enzyme The time of insulation reaction is 10min after phenol reagent.
10. the detection method of Fast Evaluation ferment fat-reducing effect according to claim 6, it is characterised in that:It is described to determine UV absorption is determined at 500nm.
CN201710563972.5A 2017-07-12 2017-07-12 A kind of detection method of Fast Evaluation ferment fat-reducing effect Pending CN107271393A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101676719A (en) * 2008-09-19 2010-03-24 河南瑞驰生物科技有限公司 Method for measuring diastatic enzyme activity using a spectrophotometer
CN105586388A (en) * 2016-03-14 2016-05-18 河南大学 Measuring method for activity of glucose oxidase
CN106841069A (en) * 2017-02-24 2017-06-13 北京挑战生物技术有限公司 A kind of glucose oxidase activity quick measuring reagent box and its detection method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101676719A (en) * 2008-09-19 2010-03-24 河南瑞驰生物科技有限公司 Method for measuring diastatic enzyme activity using a spectrophotometer
CN105586388A (en) * 2016-03-14 2016-05-18 河南大学 Measuring method for activity of glucose oxidase
CN106841069A (en) * 2017-02-24 2017-06-13 北京挑战生物技术有限公司 A kind of glucose oxidase activity quick measuring reagent box and its detection method

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BARBARA JANSON COHEN: "《曼姆勒人体健康与疾病》", 31 July 2014, 金盾出版社 *
刘福堃 等: "《微生物酵素及其应用》", 31 January 2014, 辽宁科学技术出版社 *
李丕武 等: "两种葡萄糖氧化酶活力测定方法的比较", 《食品工业科技》 *
王淼: "《生物化学》", 31 January 2017, 中国轻工业出版社 *

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Application publication date: 20171020