Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A detection method and sweetness technology, which are applied in the field of food sweetness detection, can solve the problems of long detection time, no detection method for sweetness, influence on the accuracy of detection results, etc., and achieve the effect of convenient detection method.
Active Publication Date: 2015-07-15
ZHEJIANG GONGSHANG UNIVERSITY
View PDF7 Cites 6 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
Although Abbe refractometer is also used to detect the sweetness of samples, but what Abbe refractometer detects is the soluble solids content of food, not the real sweetness of samples
For a long time, there has not been a real method of detecting sweetness based on modern instruments
[0003] In addition, the currently commonly used sensory evaluation methods also have certain disadvantages: (1) sensory personnel e
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0028] 1. Weigh graphite powder, liquid paraffin and nickel hydroxide in a ratio of 30:15:1 by weight, mix them evenly, and grind them to obtain a uniform paste.
[0029] 2. Pack the paste into a polytetrafluoroethylene casing, one end is flush with the bottom surface of the casing, and the other end is inserted into a copper rod.
[0030] 3. After the paste solidifies for 30 minutes, sand the flat end with fine sandpaper for 15 minutes to make a sweetness sensor.
[0031] 4. Prepare a potassium hydroxide solution with a concentration of 1mol / L.
[0032] 5. Glucose, fructose, lactose, maltose, xylitol, erythritol, sorbitol, and mannitol were respectively prepared into aqueous solutions with sweetness of 0.2, 0.4, 0.6, 0.8, and 1.0 as standard products; the concentration of the preparation was 5 % sucrose solution as the sample to be tested. Take 1.5mL of each of the above samples and add them into 50mL of 1mol / L potassium hydroxide solution respectively to prepare the test s...
Embodiment 2
[0040] 1. Weigh graphite powder, liquid paraffin and nickel hydroxide in a ratio of 30:15:1 by weight, mix them evenly, and grind them to obtain a uniform paste.
[0041] 2. Pack the paste into a polytetrafluoroethylene casing, one end is flush with the bottom surface of the casing, and the other end is inserted into a copper rod.
[0042] 3. After the paste solidifies for 60 minutes, sand the flat end with fine sandpaper for 30 minutes to make a sweetness sensor.
[0043] 4. Prepare a potassium hydroxide solution with a concentration of 1mol / L.
[0044] 5. Glucose, fructose, lactose, maltose, xylitol, erythritol, sorbitol, and mannitol were respectively prepared into aqueous solutions with sweetness of 0.1, 0.3, 0.5, 0.7, and 0.9 as standard products; watermelon pulp Squeeze the juice, filter and take the clarified liquid as the sample to be tested. Take 1.5mL of each of the above samples and add them into 50mL of 1mol / L potassium hydroxide solution respectively to prepare ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention belongs to the technical field of food detection, and relates to a detection method of food sweetness degree. The method comprises the following steps: (1) preparing a sweetness degree sensor; (2) soaking the sweetness degree sensor in a potassium hydroxide solution, carrying out detection under a certain voltage, and taking the current value at the 120th second as the (I) standard; (3) preparing sweetener solutions with different sweetness degrees, and then mixing the sweetener solutions with a potassium hydroxide solution individually; (4) soaking the sweetness degree sensor in the mixed solution of sweetener and potassium hydroxide, carrying out detection under a certain voltage, taking the current value at the 60th second as the (I) sample, and taking the ratio of (I) standard to (I) sample as the sample characteristic signal value (S) sample; (5) taking the (S) sample and the actual sample sweetness degree (T) sample as the horizontal ordinate and vertical ordinate respectively to obtain a standard curve; (6) detecting a sample by the sweetness degree sensor, and substituting the measured value into the standard curve to obtain the sweetness degree of the sample. The provided detection method overcome the shortages of conventional sweetness degree detection methods; the sweetness degree sensory analysis and instrument analysis are unified, if the primary standard curve is established, the post detection becomes easier, the provided detection method can be used to detect the sweetness degrees of various sugar-containing beverages and fruits, the detection precision is high, and the application range is wide.
Description
technical field [0001] The invention relates to the technical field of food measurement, in particular to a method for detecting the sweetness of food. Background technique [0002] Sweetness, which characterizes the sweetness of food, is, from a certain perspective, the most important sensory index that characterizes the senses of food. Usually, the detection of sweetness is carried out by means of artificial sensory evaluation. Although an Abbe refractometer is also used to detect the sweetness of a sample, what the Abbe refractometer detects is the soluble solids content of the food, not the real sweetness of the sample. For a long time, there has not been a real method of detecting sweetness based on modern instruments. [0003] In addition, the currently commonly used sensory evaluation methods also have certain disadvantages: (1) sensory personnel engaged in manual evaluation need to undergo professional training before they can take up the post, which will increase ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more