FR2047193A5 - Xylose and xylitol prepd from waste cellul - ose products - Google Patents
Xylose and xylitol prepd from waste cellul - ose productsInfo
- Publication number
- FR2047193A5 FR2047193A5 FR7016020A FR7016020A FR2047193A5 FR 2047193 A5 FR2047193 A5 FR 2047193A5 FR 7016020 A FR7016020 A FR 7016020A FR 7016020 A FR7016020 A FR 7016020A FR 2047193 A5 FR2047193 A5 FR 2047193A5
- Authority
- FR
- France
- Prior art keywords
- xylose
- waste
- xylitol
- degrees
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- SRBFZHDQGSBBOR-IOVATXLUSA-N D-xylopyranose Chemical compound O[C@@H]1COC(O)[C@H](O)[C@H]1O SRBFZHDQGSBBOR-IOVATXLUSA-N 0.000 title abstract 10
- PYMYPHUHKUWMLA-UHFFFAOYSA-N arabinose Natural products OCC(O)C(O)C(O)C=O PYMYPHUHKUWMLA-UHFFFAOYSA-N 0.000 title abstract 5
- SRBFZHDQGSBBOR-UHFFFAOYSA-N beta-D-Pyranose-Lyxose Natural products OC1COC(O)C(O)C1O SRBFZHDQGSBBOR-UHFFFAOYSA-N 0.000 title abstract 5
- 239000002699 waste material Substances 0.000 title abstract 4
- 235000010447 xylitol Nutrition 0.000 title abstract 4
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 title abstract 3
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 title abstract 3
- 239000000811 xylitol Substances 0.000 title abstract 3
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 title abstract 3
- 229960002675 xylitol Drugs 0.000 title abstract 3
- 239000001913 cellulose Substances 0.000 title 1
- 229940106135 cellulose Drugs 0.000 title 1
- 235000010980 cellulose Nutrition 0.000 title 1
- 239000000463 material Substances 0.000 abstract 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 3
- 230000003301 hydrolyzing effect Effects 0.000 abstract 2
- 240000009226 Corylus americana Species 0.000 abstract 1
- 235000001543 Corylus americana Nutrition 0.000 abstract 1
- 235000007466 Corylus avellana Nutrition 0.000 abstract 1
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract 1
- 240000006711 Pistacia vera Species 0.000 abstract 1
- 108010009736 Protein Hydrolysates Proteins 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 230000003226 decolorizating effect Effects 0.000 abstract 1
- 206010012601 diabetes mellitus Diseases 0.000 abstract 1
- 235000013305 food Nutrition 0.000 abstract 1
- 235000003599 food sweetener Nutrition 0.000 abstract 1
- 239000000543 intermediate Substances 0.000 abstract 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract 1
- 239000003765 sweetening agent Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13K—SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES
- C13K13/00—Sugars not otherwise provided for in this class
- C13K13/002—Xylose
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C31/00—Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
- C07C31/18—Polyhydroxylic acyclic alcohols
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Prepn. of xylose and xylitol from waste cellulosic materials e.g. almond and hazelnut shells by (a) washing the waste materials with water at 100 degrees C, contg. 0.1-1% strong alkali; (b) hydrolysing the washed materials at 140-145 degrees C and 4-4.5 atm. with a 1.5% aqs. H2SO4 soln; (c) decolourising the hydrolysate, hydrolysing it again at 100-110 degrees C.; neutralising to pH 3.5, deionising, concentrating or 15% original volume and crystallising xylose by addn. of viscous CH3OH and (d) catalytically hydrogenating the xylose solns. to yield xylitol. In stage (a); ratio of water (l): cellulosic material (kg) is almost 2; in (b); ratio of water (Hl.) : cellulosic material (kg) is between 125 and 150. Xylose and xylitols which are used in sweeteners and diabetic foods and as chemical intermediates are easily obtained in good yield and high purity from waste products.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1637269 | 1969-05-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2047193A5 true FR2047193A5 (en) | 1971-03-12 |
Family
ID=11148838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7016020A Expired FR2047193A5 (en) | 1969-05-03 | 1970-04-30 | Xylose and xylitol prepd from waste cellul - ose products |
Country Status (3)
| Country | Link |
|---|---|
| ES (1) | ES379267A1 (en) |
| FR (1) | FR2047193A5 (en) |
| IL (1) | IL34444A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313448A2 (en) * | 1975-05-22 | 1976-12-31 | Sued Chemie Ag | PROCESS FOR DISAGREGING THE OAT BALL |
| FR2538381A1 (en) * | 1982-12-27 | 1984-06-29 | M T Inc | PROCESS FOR RECOVERING INOSITOL AND POSSIBLY SORBITOL FROM AQUEOUS ALMOND ENVELOPE EXTRACTS |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002070753A2 (en) * | 2001-02-28 | 2002-09-12 | Iogen Energy Corporation | Method of processing lignocellulosic feedstock for enhanced xylose and ethanol production |
-
1970
- 1970-04-30 FR FR7016020A patent/FR2047193A5/en not_active Expired
- 1970-05-02 ES ES379267A patent/ES379267A1/en not_active Expired
- 1970-05-03 IL IL34444A patent/IL34444A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2313448A2 (en) * | 1975-05-22 | 1976-12-31 | Sued Chemie Ag | PROCESS FOR DISAGREGING THE OAT BALL |
| FR2538381A1 (en) * | 1982-12-27 | 1984-06-29 | M T Inc | PROCESS FOR RECOVERING INOSITOL AND POSSIBLY SORBITOL FROM AQUEOUS ALMOND ENVELOPE EXTRACTS |
Also Published As
| Publication number | Publication date |
|---|---|
| IL34444A (en) | 1973-06-29 |
| ES379267A1 (en) | 1972-10-16 |
| IL34444A0 (en) | 1970-07-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |