Method for preparing agar with low sulfate radical content
A technology of sulfate and agar, which is applied in the field of preparation of agar with low sulfate content, can solve the problems of reduced sulfate and unclear forms of sulfate, and achieve the effect of low sulfate content and easy operation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0022] A preparation method of agar with low sulfate content, comprising the following steps:
[0023] Step 1. Add 250 mL of 4% NaOH solution to 10 g of agar powder.
[0024] Step 2: bathe in water at 60°C and 80°C for 10 hours respectively.
[0025] Step 3: washing with water until neutral, drying at 55°C until constant weight and pulverizing.
[0026] In this example, the sulfate radical contents in the extraction agar were 0.40% and 0.44%, which were respectively reduced by 20% and 12% compared with the raw material agar (0.5%).
Embodiment 2
[0028] A preparation method of agar with low sulfate content, comprising the following steps:
[0029] Step 1. Add 6.5g / L of EDTA-Na to 15g of agar powder 2 The solution was 250 mL, the pH was adjusted to 9, and the reaction was carried out at 60° C. for 4 h.
[0030] Step 2: After washing with water, dry at 55°C until constant weight and pulverize.
[0031] In this example, the sulfate radical content in the extracted agar is 0.25%, which is 50% lower than that of the raw agar (0.5%).
Embodiment 3
[0033] A preparation method of agar with low sulfate content, comprising the following steps:
[0034] Step 1. Add 250 mL of distilled water to dissolve 7 g of agar powder, and keep it warm at 60°C.
[0035] Step 2, add EDTA-Na in the glue solution mentioned in step 1 2 The solution was 100 mL, adjusted to pH 9, and reacted at 60° C. for 2 h.
[0036] Step 3: After the reaction is finished, wait for the glue to solidify, freeze in the refrigerator, then thaw in a warm water bath, wash, dry and pulverize to obtain the agar product.
[0037] In this embodiment, the sulfate radical content in the extracted agar is 0.35%, which is 30% lower than that of the raw agar (0.5%).
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com