Preparation method of starch nanocrystals with high yield and short complexation time
A starch nanocrystal and high-yield technology, which is applied in the field of nanomaterials, can solve the problems that starch products do not have a nanoscale and do not obtain starch nanocrystals, and achieve the effect of increasing yield and improving the degree of industrialization
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0026] 0.5 g of amylose was dissolved in 10 mL of dimethyl sulfoxide at 90° C. to obtain an amylose dimethyl sulfoxide solution. 0.05 g of stearic acid was dissolved in 15 mL of dimethyl sulfoxide, and preheated to 90° C. in a water bath to obtain a stearic acid dimethyl sulfoxide solution. The two solutions were mixed and stirred at a speed of 200 r / min for 5 minutes to obtain a mixed solution. Then add 475 mL of distilled water at a temperature of 90° C. and stir for 15 min at a rotational speed of 200 r / min to obtain a complex solution. The complexing solution was placed statically, and cooled to room temperature at a cooling rate of 2.33 °C / min. The complex solution was centrifuged and dried at a speed of 6000 r / min for 30 minutes to remove the supernatant to obtain a precipitate. The precipitate was washed by centrifugation once with 70% ethanol, then twice by absolute ethanol, and dried to obtain amylose / stearic acid complex starch nanocrystals. According to the X-ray...
Embodiment 2
[0028] 0.5 g of amylose was dissolved in 10 mL of dimethyl sulfoxide at 90° C. to obtain an amylose dimethyl sulfoxide solution. Dissolve 0.05 g of lauric acid in 15 mL of dimethyl sulfoxide, and preheat it to 90° C. in a water bath to obtain a lauric acid dimethyl sulfoxide solution. The two solutions were mixed and stirred at a speed of 200 r / min for 5 minutes to obtain a mixed solution. Then add 475 mL of distilled water at a temperature of 90° C. and stir for 15 min at a rotational speed of 200 r / min to obtain a complex solution. The complexing solution was placed statically, and cooled to room temperature at a cooling rate of 2.17 °C / min. The complex solution was centrifuged and dried at a speed of 10000 r / min for 15 minutes to remove the supernatant to obtain a precipitate. The precipitate was centrifuged once with 60% ethanol, then twice with absolute ethanol, and dried to obtain amylose / lauric acid complex starch nanocrystals. According to the X-ray diffraction patt...
Embodiment 3
[0030] 0.4 g of amylose was dissolved in 10 mL of dimethyl sulfoxide at 50° C. to obtain an amylose dimethyl sulfoxide solution. 0.2 g of stearic acid was dissolved in 15 mL of dimethyl sulfoxide, and preheated to 50° C. in a water bath to obtain a stearic acid dimethyl sulfoxide solution. The two solutions were mixed and stirred at a speed of 300 r / min for 5 minutes to obtain a mixed solution. Then add 375 mL of distilled water at a temperature of 50° C. and stir for 45 min at a rotational speed of 50 r / min to obtain a complex solution. The complexing solution was placed statically and cooled to room temperature at a cooling rate of 0.17 °C / min. The complex solution was centrifuged and dried at a speed of 8000 r / min for 30 minutes to remove the supernatant to obtain a precipitate. The precipitate was washed by centrifugation once with 60% ethanol, then twice by absolute ethanol, and dried to obtain amylose / stearic acid complex starch nanocrystals. The average particle size...
PUM
| Property | Measurement | Unit |
|---|---|---|
| size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
| particle size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More