Mannanase, endo-1,4-beta- - Names and Identifiers
Mannanase, endo-1,4-beta- - Physico-chemical Properties
Mannanase, endo-1,4-beta- - Reference
Reference Show more | 1. [IF=4.952] Erna Li et al."In-vitro digestion by simulated gastrointestinal juices of Lactobacillus rhamnosus cultured with mulberry oligosaccharides and subsequent fermentation with human fecal inocula."Lwt Food Sci Technol. 2019 Mar;101:61 2. [IF=4.411] Erna Li et al."Purification, Characterization, Prebiotic Preparations and Antioxidant Activity of Oligosaccharides from Mulberries."Molecules. 2019 Jan;24(12):2329 3. [IF=6.576] Erna Li et al."Analysis of Lactobacillus rhamnosus GG in Mulberry Galacto-Oligosaccharide Medium by Comparative Transcriptomics and Metabolomics."Front Nutr. 2022; 9: 853271 4. [IF=2.679] Kangyu Zhao et al."Response Surface Optimization of Enzyme Pretreatment Improves Yield of Ethanol-Extracted Lipids from Nannochloropsis oceanica."EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY |
Mannanase, endo-1,4-beta- - Research progress on preparation and application of microbial β-mannanase
Author:
Peony , Yang Weidong , Xu Baohong , Curley
Abstract:
β-mannanase is the abbreviation of β-1, 4-d-mannanase, which is a kind of endo-hydrolase capable of hydrolyzing substances containing β-1-4-d-mannosidic bonds. It widely exists in nature, including some lower animals, legumes, and microorganisms are the main source of β-mannanase. Microbial sources of β-mannanase have high activity, low cost, stable source, easy extraction and a wider role than plants and animals, pH, temperature range and substrate specificity and other significant characteristics, the application prospect is extremely broad. This paper reviews the source, preparation, properties, mechanism of action of microbial β-mannanase and its application in feed, food, light industry and petroleum industry.
Key words:
β-mannanase preparation apply
DOI:
10.3969/j.issn.1007-5038.2006.09.008
cited:
123
year:
2006
Last Update:2024-01-02 23:10:35
Mannanase, endo-1,4-beta- - Production conditions and general characteristics of alkaline β-mannanase
Author:
Ma Yan and Tian Xinyu
Abstract:
A strain of Alkalophilic Bacillus sp., which can produce β-mannanase, was isolated from the udonao Alkali Lake in Inner Mongolia, China, the optimum medium for enzyme production was 2.0 locust bean gum, 1.5 sodium glutamate, 0.1 K_2HPO_4, 0.02 MgSO_4 · 7H_2O, 8.0 NaCl and Na_2CO_31.0. The optimum temperature and pH for enzyme production were 32 ℃ and 10.0, respectively. The optimum temperature and pH for enzyme production were 70 ℃ and 9.5-10.0, respectively, the enzyme is stable in the range of pH 9.0-10.0. The hydrolysis products of konjac flour and locust bean gum were mainly oligosaccharides.
Key words:
Alkalophilic bacillus; Β-mannanase
DOI:
CNKI:SUN:WSXB.0.1991-06-005
cited:
148
year:
1991
Last Update:2023-08-16 22:09:08
Mannanase, endo-1,4-beta- - Introduction
β-1, 4-mannanase is abbreviated as β-mannanase, which is a type of mannooligosaccharides containing β-l, 4-mannosidine bonds, mannan polysaccharides (including mannan, galactomannan, glucomannan, etc.) of the hydrolysis of endonuclease, belonging to the type of hemicellulase. β-mannanase can degrade polysaccharides such as mannan, which are widely found in bean seeds, into oligosaccharides such as glucose and mannan oligosaccharides, which not only eliminates the anti-nutritional effect of mannan on various nutrients in monogastric animals, but also plays an important role in animal production. Mannanase is an enzyme preparation produced by fermentation of Aspergillus niger. Its main activity is mannanase. It also contains β-glucanase, xylanase, and cellulolytic enzyme activities. These enzymes are very effective when digesting plant raw materials. Mannanase is suitable for soybeans and other grains containing mannan. It can effectively improve the nutrients of soybeans, coconuts and other grains and increase the digestibility of feed fiber. Improve the health status of feed animals, increase the conversion of non-nutrients, and reduce the excretion of dry matter in animal feces. Effective temperature range: 30-70 c suitable temperature range: 40-55 c effective pH range: 3.0-6.5 suitable pH range: 3.5-5.0
Last Update:2022-10-16 17:30:43
Mannanase, endo-1,4-beta- - Study on solid-state fermentation of acidic β-mannanase
Last Update:2023-08-16 22:09:08
Mannanase, endo-1,4-beta- - Introduction
Mannanase, endo-1,4-beta-is an enzyme that catalyzes the degradation of Mannan, a polysaccharide. It belongs to a class of glycoside hydrolases, which are widely found in fungi, bacteria, plants and other organisms in nature.
Mannanase, endo-1, the main function of 4-beta-is to break down Mannan into monosaccharide mannose, so that Mannan can be used by organisms. Mannans are found mainly in fungal cell walls, insect exoskeletons and woody parts of higher plants.
Mannanase, endo-1,4-beta-is widely used. In the food industry, it is often used to prepare polysaccharide beverages, oligosaccharides and sweeteners. In the field of biomedicine, Mannanase, endo-1,4-beta-contributes to the development of drugs for the treatment of diabetes and the diagnosis of tumors and inflammation. In addition, Mannanase, endo-1,4-beta-can also be used in the pulp and paper industry, the degradation of cellulose and uronic acids, etc.
The method for preparing Mannanase, endo-1,4-beta-is usually obtained by fermentation of fungi or bacteria. These microorganisms were cultured in a suitable medium, and purified to obtain pure Mannanase, endo-1,4-beta-after enzyme activity determination and separation and purification-.
Mannanase, endo-1,4-beta-safety issues during use need attention. In industrial applications, appropriate protective measures must be taken to avoid direct contact with enzymes and coughing or inhalation of dust. In addition, operating procedures should be followed to ensure safety and control during use.
Last Update:2024-04-09 20:52:54