Method for producing xylitol and arabitol simultaneously by utilizing xylose mother liquid
A technology of arabinitol and xylose mother liquor, applied in chemical instruments and methods, preparation of organic compounds, organic chemistry, etc., can solve the problems of low utilization rate of xylose and low conversion rate of xylitol, and achieve high conversion rate Effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0040] Example 1: Take 1000 g of xylose mother liquor with a mass concentration of 65%, and its composition is: xylose 52.53%, arabinose 25.56%, glucose 14.97%, and galactose 3.483%. Dilute with desalinated water to a mass concentration of 32%, decolorize and filter with activated carbon and purify and remove impurities by ion exchange; add yeast extract with 2% xylose mother liquor mass, 1% magnesium sulfate, and 0.5% dipotassium hydrogen sulfate to adjust the pH value 4.5, sterilized, then insert the yeast seed solution according to the inoculum amount of 8%, and ferment for 20 hours at a temperature of 30°C, an aeration rate of 0.4vvm, and a stirring speed of 130r / min to obtain a fermented liquid; the fermented liquid was first plated Frame filtration, and then sterilized by metal microfiltration with a molecular weight cut-off of 10,000 to 1,000,000, then decolorized, filtered, and ion-exchanged to remove impurities, and initially concentrated to a mass concentration of 50%...
Embodiment 2
[0041]Example 2: Take 1000 g of xylose mother liquor with a mass concentration of 65%, and its composition is: xylose 52.53%, arabinose 25.56%, glucose 14.97%, and galactose 3.483%. Dilute with desalinated water to a mass concentration of 25%, decolorize and filter through activated carbon and purify and remove impurities by ion exchange; add yeast extract with 1% xylose mother liquor quality, 0.5% peptone, 0.2% corn steep liquor, 0.5% magnesium sulfate, 0.5% dipotassium hydrogen sulfate, 0.01% sodium dihydrogen sulfate, adjust the pH value to 3.5, sterilize, then insert the yeast seed solution according to the inoculum amount of 5%, at a temperature of 28°C and an air flow of 0.2vvm 1. Ferment for 10 hours under the condition of stirring speed of 100r / min to obtain the fermented liquid; filter the fermented liquid with plate and frame firstly, then pass through metal microfiltration with a molecular weight cut-off of 10,000 to 1,000,000 to sterilize bacteria, then go through d...
Embodiment 3
[0042] Example 3: Take 1000 g of xylose mother liquor with a mass concentration of 65%, and its composition is: xylose 52.53%, arabinose 25.56%, glucose 14.97%, and galactose 3.483%. Dilute with desalinated water to a mass concentration of 40%, decolorize and filter through activated carbon and purify and remove impurities by ion exchange; add 4% ammonium sulfate, 1% beef extract, and 2% disodium bisulfate to adjust the pH value of the xylose mother liquor 5.5, sterilized, then insert the yeast seed solution according to 10% inoculum amount, and ferment for 28 hours under the conditions of temperature 35°C, ventilation rate 0.5vvm, and stirring speed 150r / min to obtain fermentation liquid; Frame filtration, and then sterilized by metal microfiltration with a molecular weight cut-off of 10,000 to 1,000,000, then decolorized, filtered, and ion exchanged to remove impurities, and initially concentrated to a mass concentration of 55%; adjust the pH of the initially concentrated sug...
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