FR2327315A1 - Xylose recovery from annual plants - esp. straw, by treating with base and then with mineral acid - Google Patents

Xylose recovery from annual plants - esp. straw, by treating with base and then with mineral acid

Info

Publication number
FR2327315A1
FR2327315A1 FR7630167A FR7630167A FR2327315A1 FR 2327315 A1 FR2327315 A1 FR 2327315A1 FR 7630167 A FR7630167 A FR 7630167A FR 7630167 A FR7630167 A FR 7630167A FR 2327315 A1 FR2327315 A1 FR 2327315A1
Authority
FR
France
Prior art keywords
straw
esp
treating
acetic acid
annual plants
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.)
Withdrawn
Application number
FR7630167A
Other languages
French (fr)
Inventor
Hans Buckl
Hermann Friese
Bernd Brenner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sued Chemie AG
Original Assignee
Sued Chemie AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sued Chemie AG filed Critical Sued Chemie AG
Publication of FR2327315A1 publication Critical patent/FR2327315A1/en
Withdrawn legal-status Critical Current

Links

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

Abstract

Recovery of xylose (I) from annual plants, esp. straw, comprises first treating with sufficient alkali hydroxide to liberate and neutralise acetic acid bound-up in the straw. The solid residue is then treated with an inorganic acid. Pref. the hydroxide is 1.1-1.2 moles per mole acetic acid and the straw is esp. derived from wheat, rye, barley, oats or rice. (I) is used in the food industry, and its reduction prod. Xylitol is a sweetener for diabetics. Complete removal of acetic acid and N-contg. crystallisation inhibitors is achieved without affecting the pentosans and yields of (I) are =26%. Lignin can be easily extracted from the reaction residue (it is thermoplastic and very reactive, useful e.g. for making dyes and antiparasitic agents) leaving a further residue from which cellulose can be recovered.
FR7630167A 1975-10-08 1976-10-07 Xylose recovery from annual plants - esp. straw, by treating with base and then with mineral acid Withdrawn FR2327315A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752545112 DE2545112C3 (en) 1975-10-08 1975-10-08 Process for the production of xylose by digesting annual plants, especially straw

Publications (1)

Publication Number Publication Date
FR2327315A1 true FR2327315A1 (en) 1977-05-06

Family

ID=5958666

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7630167A Withdrawn FR2327315A1 (en) 1975-10-08 1976-10-07 Xylose recovery from annual plants - esp. straw, by treating with base and then with mineral acid

Country Status (7)

Country Link
JP (1) JPS5251037A (en)
AT (1) ATA687376A (en)
BE (1) BE847082A (en)
DE (1) DE2545112C3 (en)
FI (1) FI762624A (en)
FR (1) FR2327315A1 (en)
SE (1) SE7611092L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668165A1 (en) * 1990-10-23 1992-04-24 Toulouse Inst Nat Polytech PROCESS AND PLANT FOR PREPARING CONCENTRATED JUICE OF PENTOSIS AND / OR HEXOSES FROM HEMICELLULOSE - RICH VEGETABLE MATERIAL.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668165A1 (en) * 1990-10-23 1992-04-24 Toulouse Inst Nat Polytech PROCESS AND PLANT FOR PREPARING CONCENTRATED JUICE OF PENTOSIS AND / OR HEXOSES FROM HEMICELLULOSE - RICH VEGETABLE MATERIAL.
WO1992007098A1 (en) * 1990-10-23 1992-04-30 Agrocinq Recherche S.A. Process and plant for preparing pentose and/or hexose concentrated juice from hemicellulose-rich plant substances

Also Published As

Publication number Publication date
DE2545112B2 (en) 1979-02-15
DE2545112C3 (en) 1979-10-11
FI762624A (en) 1977-04-09
BE847082A (en) 1977-01-31
DE2545112A1 (en) 1977-04-28
JPS5251037A (en) 1977-04-23
SE7611092L (en) 1977-04-09
ATA687376A (en) 1977-10-15

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Legal Events

Date Code Title Description
ST Notification of lapse