Title:
METHOD FOR PRODUCING MEDIUM-CHAIN CARBOXYLIC ACID FROM AGRICULTURAL WASTE BY MEANS OF FERMENTATION, AND APPLICATION
Document Type and Number:
WIPO Patent Application WO/2022/100598
Kind Code:
A1
Abstract:
Provided are a method for producing a medium-chain carboxylic acid from agricultural waste by means of fermentation, and an application. A fermentation substrate of the method is a mixture of livestock and poultry manure and agricultural waste, the agricultural waste is crop residue and/or fruit and vegetable waste; the method comprises: A, a first level fermentation phase: fermentation bacteria being lactic acid bacteria, the fermentation temperature being 45-60 °C, and the pH being 4.0-6.0; and B, a second level fermentation phase: utilizing acclimated sludge to serve as an inoculum and performing anaerobic fermentation, the fermentation temperature being 25-40 °C, and the pH being 4.0-7.0. A high added value medium-chain carboxylic acid is obtained from livestock and poultry manure and agricultural waste by means of a two phase gradient temperature control fermentation method under the constraint that an exogenous electron donor is not added, and a feasible new avenue for high value utilization of agricultural waste is provided.
Inventors:
DONG HONGMIN (CN)
ZHANG WANQIN (CN)
YIN FUBIN (CN)
CAO QITAO (CN)
LIAN TIANJING (CN)
WANG SHUNLI (CN)
ZHANG WANQIN (CN)
YIN FUBIN (CN)
CAO QITAO (CN)
LIAN TIANJING (CN)
WANG SHUNLI (CN)
Application Number:
PCT/CN2021/129717
Publication Date:
May 19, 2022
Filing Date:
November 10, 2021
Export Citation:
Assignee:
INST OF ENVIRONMENT AND SUSTAINABLE DEVELOPMENT IN AGRICULTURE CHINESE ACADEMY OF AGRICULTURAL SCIEN (CN)
International Classes:
C12P7/40; C12P7/64; C12P7/52; C12P7/54; C12P7/56; C12P39/00
Foreign References:
CN107363076A | 2017-11-21 | |||
CN110643645A | 2020-01-03 | |||
US20080124775A1 | 2008-05-29 | |||
EP3581659A1 | 2019-12-18 | |||
CN104357487A | 2015-02-18 | |||
CN104357496A | 2015-02-18 |
Other References:
CARVAJAL-ARROYO JOSÉ M., CANDRY PIETER, ANDERSEN STEPHEN J., PROPS RUBEN, SEVIOUR THOMAS, GANIGUÉ RAMON, RABAEY KORNEEL: "Granular fermentation enables high rate caproic acid production from solid-free thin stillage", GREEN CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, GB, vol. 21, no. 6, 18 March 2019 (2019-03-18), GB , pages 1330 - 1339, XP055929142, ISSN: 1463-9262, DOI: 10.1039/C8GC03648A
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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