GB802487A - A process for the production of yeast - Google Patents

A process for the production of yeast

Info

Publication number
GB802487A
GB802487A GB2903755A GB2903755A GB802487A GB 802487 A GB802487 A GB 802487A GB 2903755 A GB2903755 A GB 2903755A GB 2903755 A GB2903755 A GB 2903755A GB 802487 A GB802487 A GB 802487A
Authority
GB
United Kingdom
Prior art keywords
per cent
sugar
sugars
influx
specific gravities
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
GB2903755A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2903755A priority Critical patent/GB802487A/en
Publication of GB802487A publication Critical patent/GB802487A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
    • C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
    • C12N1/14—Fungi; Culture media therefor
    • C12N1/16—Yeasts; Culture media therefor

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Genetics & Genomics (AREA)
  • Biotechnology (AREA)
  • Organic Chemistry (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Mycology (AREA)
  • Microbiology (AREA)
  • Biomedical Technology (AREA)
  • Botany (AREA)
  • Virology (AREA)
  • Tropical Medicine & Parasitology (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

Torula (Torulopsis) utilis is cultivated on a substrate of molasses waste liquors from the production of citric acid having specific gravities of 1.03 to 1.075 and containing sugars and/or nutrient organic non-sugars, vigorous aeration with finely divided air being employed. As substrates, liquors of specific gravities 1.03 to 1.045 and sugar contents 1.0 to 2.5 per cent, or of specific gravities 1.04 to 1.075 and sugar contents 0 to 1 per cent and containing a sufficient proportion of organic non-sugar nutrient are especially suitable. According to an example, 3.75 1. waste molasses liquor containing 4.2 per cent reducing sugars and of specific gravity 1.072 is acidified to pH 4.5, ammonium sulphate, diammonium phosphate and superphosphate are added and the liquid is boiled with aeration for 20-30 minutes. After replacing the water lost by evaporation, filtering and making up to 7.5 l., the solution had a specific gravity of 1.034 and sugar content of 2.1 per cent. Fermentation was started with 1.5 l. and an inoculum of 50 g. adapted seed yeast Torula utilis at 28 DEG C. Further quantities of solution were added from time to time, the maximum influx being reached after 4 1/2 hours, the temperature raised to about 31 DEG C. and the air rate increased from 300 l./hr. at the start to 750 l./hr. at the maximum influx. During the further course of fermentation the influx was decreased and within the ninth hour the temperature was reduced to 28 DEG C. A total of 550 g. yeast (25 per cent dry matter) was obtained.
GB2903755A 1955-10-12 1955-10-12 A process for the production of yeast Expired GB802487A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2903755A GB802487A (en) 1955-10-12 1955-10-12 A process for the production of yeast

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2903755A GB802487A (en) 1955-10-12 1955-10-12 A process for the production of yeast

Publications (1)

Publication Number Publication Date
GB802487A true GB802487A (en) 1958-10-08

Family

ID=10285221

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2903755A Expired GB802487A (en) 1955-10-12 1955-10-12 A process for the production of yeast

Country Status (1)

Country Link
GB (1) GB802487A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461035A (en) * 1963-11-13 1969-08-12 Pfizer & Co C Process for increasing the yield of yeast
US3846558A (en) * 1969-11-24 1974-11-05 Int Farm Systems Method for converting animal waste products into a food supplement
CN112980708A (en) * 2019-12-16 2021-06-18 中国石油天然气股份有限公司 Culture method of saccharomyces cerevisiae

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461035A (en) * 1963-11-13 1969-08-12 Pfizer & Co C Process for increasing the yield of yeast
US3846558A (en) * 1969-11-24 1974-11-05 Int Farm Systems Method for converting animal waste products into a food supplement
CN112980708A (en) * 2019-12-16 2021-06-18 中国石油天然气股份有限公司 Culture method of saccharomyces cerevisiae

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