EP0145600B1 - Verfahren zum Enthülsen harter Körner und dessen Anwendung insbesondere zum Isolieren reiner Polysaccharide - Google Patents

Verfahren zum Enthülsen harter Körner und dessen Anwendung insbesondere zum Isolieren reiner Polysaccharide Download PDF

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Publication number
EP0145600B1
EP0145600B1 EP19840402537 EP84402537A EP0145600B1 EP 0145600 B1 EP0145600 B1 EP 0145600B1 EP 19840402537 EP19840402537 EP 19840402537 EP 84402537 A EP84402537 A EP 84402537A EP 0145600 B1 EP0145600 B1 EP 0145600B1
Authority
EP
European Patent Office
Prior art keywords
seeds
hulling
tara
hard grains
polysaccharides
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
Application number
EP19840402537
Other languages
English (en)
French (fr)
Other versions
EP0145600A2 (de
EP0145600A3 (en
Inventor
Bernard Vacher
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.)
Sanofi Aventis France
Original Assignee
Francaise Hoechst Ste
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 Francaise Hoechst Ste filed Critical Francaise Hoechst Ste
Publication of EP0145600A2 publication Critical patent/EP0145600A2/de
Publication of EP0145600A3 publication Critical patent/EP0145600A3/fr
Application granted granted Critical
Publication of EP0145600B1 publication Critical patent/EP0145600B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B1/00—Preparing grain for milling or like processes
    • B02B1/08—Conditioning grain with respect to temperature or water content
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming

Definitions

  • the present invention relates to a process for shelling carob, guar or tara seeds, with thermal pretreatment of these seeds in order to facilitate their shelling, and its application in particular to the isolation of pure polysaccharides contained in these hard seeds.
  • this preliminary treatment consists in treating these seeds with concentrated, hot mineral acids, or heating them for a certain time either by superheated steam, or by passage through an oven, a sand bath or of molten paraffin, heated by conventional means (see for example French patent No. 1,091,671). These treatments are either polluting or heavy consumers of energy. In addition, they are not entirely satisfactory.
  • the subject of the invention is therefore a process for shelling carob, guar or tara seeds, with thermal pretreatment of these seeds in order to facilitate their shelling, characterized in that this thermal pretreatment is carried out by irradiation of these seeds with infrared radiation with an intensity of at least 100 kw / m 2 .
  • This pretreatment according to the invention can be easily adjusted as a function of the characteristics of the seeds to be treated by variation, either of its duration, or of the intensity of the infrared radiation applied to the seed. Simple preliminary tests make it possible to quickly determine the value of these parameters.
  • the thermal pretreatment according to the invention makes it possible to shell the carob, guar or tara seeds easily and economically and then to cleanly isolate their endosperm, rich in polysaccharides, without it being altered and / or soiled by residues of seed coat and / or embryo.
  • the pretreatment according to the invention can be implemented, advantageously, in a known tunnel oven, equipped on its internal surface with infrared sources arranged regularly and uniformly, and in which circulates at uniform speed a conveyor belt, endless, transparent or partially transparent to infrared.
  • This conveyor belt is made up of a cloth, metallic or made of glass fibers, whether or not coated with a suitable temperature-resistant material, with mesh sufficiently narrow to avoid the flow of seeds, but wide enough not to form a screen against radiation. infrared. It is fed continuously with raw seeds calibrated and free from damaged seeds and which are distributed evenly and over a single thickness.
  • the seeds are collected in a hopper and then they are subjected to mechanical shelling according to means known per se, either following, or after a more or less prolonged storage period.
  • Such an oven is, for example, an infrared tunnel oven used for drying photographic prints, 60 cm wide by 60 cm long, provided with a conveyor belt made of Teflon-coated glass fibers circulating at constant speed in the interval of approximately 5 cm separating the two layers of industrial infrared lamps with an installed power of 100 kw per m 2 arranged on either side of the conveyor belt.
  • the treadmill is continuously fed with 3 kg per m 2 of tara seeds, graded and free from damaged seeds, distributed evenly and over a single thickness.
  • the tara seeds stay in the oven for about 90 seconds before being shelled and sorted mechanically according to the usual means.
  • a flour from the endosperm of the tara seed is thus isolated, consisting almost entirely of galactomanannan, perfectly white, free from seed coat and embryo residues, almost entirely soluble in water and having a Brookfield viscosity determined at 20. ° C in 1% solution in water of 10,400 mPa - s (axis 5, speed 10 rpm, dissolution carried out at 80 ° C for 15 minutes).
  • the Brookfield viscosity of the endosperm of tara seeds of the same origin, not heat treated was determined. To do this, particles of tara seeds were dispersed in cold water at a concentration of 2% by weight. This dispersion was then heated with stirring for 3 hours at 60 ° C. The dispersion is then filtered, then the water-soluble polysaccharide is precipitated by addition to the filtrate of 6 volumes of isopropanol. The precipitate obtained is filtered, washed and dried for one hour at 105 ° C.
  • the polysaccharide isolated from the tara seed treated according to the method of the invention therefore has a Brookfield viscosity substantially identical to that of a tara seed which is not heat treated.

Landscapes

  • Polysaccharides And Polysaccharide Derivatives (AREA)

Claims (3)

1. Verfahren zum Enthülsen von Körnern von Johannisbrot, Guar oder Tara mit thermischer Vorbehandlung dieser Körner zur Erleichterung ihrer Enthülsung, dadurch gekennzeichnet, daß die thermische Vorbehandlung durch Bestrahlung dieser Körner mittels Infrarotstrahlung mit einer Intensität von wenigstens 100 kW/m2 durchgeführt wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Bestrahlung in einem Infrarot-Tunnelofen, in welchem ein mit den harten Körnern beschicktes Laufband umläuft, durchgeführt wird.
3. Anwendung des Verfahrens nach einem der Ansprüche 1 oder 2 auf die Isolierung des Endospermas der Körner und insbesondere der Polysaccharide, das dieses enthält.
EP19840402537 1983-12-14 1984-12-10 Verfahren zum Enthülsen harter Körner und dessen Anwendung insbesondere zum Isolieren reiner Polysaccharide Expired EP0145600B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8320008 1983-12-14
FR8320008A FR2556613B1 (fr) 1983-12-14 1983-12-14 Procede de decorticage de graines dures et son application, notamment a l'isolement de polysaccharides purs

Publications (3)

Publication Number Publication Date
EP0145600A2 EP0145600A2 (de) 1985-06-19
EP0145600A3 EP0145600A3 (en) 1985-07-24
EP0145600B1 true EP0145600B1 (de) 1987-09-09

Family

ID=9295158

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840402537 Expired EP0145600B1 (de) 1983-12-14 1984-12-10 Verfahren zum Enthülsen harter Körner und dessen Anwendung insbesondere zum Isolieren reiner Polysaccharide

Country Status (7)

Country Link
EP (1) EP0145600B1 (de)
JP (1) JPS60144302A (de)
DE (1) DE3465891D1 (de)
ES (1) ES8604037A1 (de)
FR (1) FR2556613B1 (de)
IN (1) IN159715B (de)
PT (1) PT79646A (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019059751A1 (fr) 2017-09-25 2019-03-28 Université Sidi Mohammed Ben Abdellah Nouveau procédé de décorticage de la caroube

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3012702B2 (ja) * 1991-04-19 2000-02-28 大日本製薬株式会社 ヒメネア属種子多糖類
ES2255817B1 (es) * 2004-07-06 2007-07-16 Procesos De Industrializacion De La Garrofa, S.L. Procedimiento para el pelado del garrofin.
CN106824350A (zh) * 2017-03-16 2017-06-13 宁夏红阳合粮油有限公司 一种富硒米加工新工艺
CN112679626A (zh) * 2020-12-21 2021-04-20 中国林业科学研究院资源昆虫研究所 一种塔拉多糖及其制备方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085751B (de) * 1952-05-07 1960-07-21 Siemens Ag Verfahren und Einrichtung zur Vorbereitung hinsichtlich der Mahl- und Backfaehigkeit von Getreide, insbesondere von Roggen, mit Infrarot-Strahlen
DE1010361B (de) * 1955-05-20 1957-06-13 Koerber & Naumann Verfahren zum Schaelen von Reis, Hafer u. dgl.
GB1379116A (en) * 1972-07-25 1975-01-02 Newton D Treatment of cereals and other seeds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019059751A1 (fr) 2017-09-25 2019-03-28 Université Sidi Mohammed Ben Abdellah Nouveau procédé de décorticage de la caroube

Also Published As

Publication number Publication date
IN159715B (de) 1987-06-06
ES8604037A1 (es) 1986-01-16
FR2556613B1 (fr) 1987-01-09
FR2556613A1 (fr) 1985-06-21
JPS60144302A (ja) 1985-07-30
DE3465891D1 (en) 1987-10-15
EP0145600A2 (de) 1985-06-19
PT79646A (fr) 1985-01-01
EP0145600A3 (en) 1985-07-24
ES538516A0 (es) 1986-01-16

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