Biochemischer Abbau von Cyanamid und Dicyandiamid

Estermaier, Lydia M.; Sieber, Axel; Lottspeich, Friedrich; Matern, Dagmar H. M.; Hartmann, Guido

doi:10.1002/ange.19921040538

Cited by 6 publications

(2 citation statements)

References 23 publications

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“…9(C)). The ‘NH’ in the middle of the urea glycolic acid was close to the ‘O’ in nature, because if there is a fairly specific urease for the substrate urea recognition, it can recognize and degrade dicyandiamide 35 (Fig. 9(D)).…”

Section: Discussionmentioning

confidence: 95%

Identification and expression of bifunctional acid urea‐degrading enzyme/urethanase from Enterobacter sp. R‐SYB082 and its application in degradation of ethyl carbamate in Chinese rice wine (Huangjiu)

et al. 2022

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BACKGROUND Ethyl carbamate (EC) is a potential carcinogen existing in fermented foods such as Chinese rice wine (Huangjiu). Since urea is an important precursor of EC, the degradation of urea could be an effective way to reduce EC in foods. RESULTS In this study, an Enterobacter sp. R‐SYB082 with acid urea degradation characteristics was obtained through microbial screening. Further research isolated a new acid urea‐degrading enzyme from R‐SYB082 strain – ureidoglycolate amidohydrolase (UAH) – which could degrade EC directly. The cloning and expression of UAH in Escherichia coli BL21 (DE3) suggested that the activity of urea‐degrading enzyme reached 3560 U L−1, while urethanase activity reached 2883 U L−1 in the optimal fermentation condition. The enzyme had the dual ability of degrading substrate urea and product EC. The removal rate of EC in Chinese rice wine could reach 90.7%. CONCLUSION This study provided a new method for the integrated control of EC in Chinese rice wine and other fermented foods. © 2022 Society of Chemical Industry.

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Section: Discussionmentioning

confidence: 95%

Identification and expression of bifunctional acid urea‐degrading enzyme/urethanase from Enterobacter sp. R‐SYB082 and its application in degradation of ethyl carbamate in Chinese rice wine (Huangjiu)

et al. 2022

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“…This is based on the ability of dicyandiamide to inhibit the urease and nitrification activity of soil microorganisms [165].…”

Section: Vol 10 Cyanamidesmentioning

confidence: 99%

Cyanamides

Güthner¹,

Mertschenk²

2006

Ullmann's Encyclopedia of Industrial Chemistry

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The article contains sections titled: 1. Calcium Cyanamide 1.1. Physical Properties 1.2. Chemical Properties 1.3. Production 1.3.1. Overall Process 1.3.2. Manufacture 1.3.3. Processing of Technical Calcium Cyanamide 1.4. Quality Specifications 1.5. Storage and Transportation 1.6. Uses 1.7. Legal Aspects 2. Cyanamide 2.1. Physical Properties 2.2. Chemical Properties 2.3. Production 2.4. Analysis 2.5. Storage and Transportation 2.6. Uses 2.7. Legal Aspects 3. Dicyandiamide 3.1. Physical Properties 3.2. Chemical Properties 3.3. Production 3.4. Quality Specifications and Analysis 3.5. Storage and Transportation 3.6. Uses 3.7. Legal Aspects 4. Substituted Cyanamides 5. Toxicology and Occupational Health Calcium cyanamide is produced from calcium carbide and nitrogen gas by an exothermic solid nitrogenation at 1000°C. It is used as a slow release nitrogen fertilizer with beneficial side effects against soilborne deseases. In chemical industry, it is the base for cyanamide and thiourea chemistry. Cyanamide is a fairly stable, toxic substance obtained from calcium cyanamide by reaction with water and carbon dioxide. It has vast applications in industrial nitrogen organic chemistry, and is also directly used as a plant protection agent. Dicyandiamide is derived from cyanamide by dimerization in presence of alkali. The nontoxic compound has found widespread industrial applications in resins, plastics, water treatment, and pharmaceuticals.

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Cooperative Binding of Nitrile Moieties Within a Bimetallic Pocket: Enforcing Side-On π-Interaction With a High-Spin Nickel(II) Site

Meyer¹,

Hyla‐Kryspin²,

Kaifer³

et al. 2000

Eur. J. Inorg. Chem.

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Biochemischer Abbau von Cyanamid und Dicyandiamid

Abstract: Huzinaga et al. vorgeschlagen [18], wurden zwei p-artige Polarisationsfunktionen hinzugefugt (Pd (MP) (SpSsSd2~) /[3p3~3d2p]

Cited by 6 publications

References 23 publications

Identification and expression of bifunctional acid urea‐degrading enzyme/urethanase from Enterobacter sp. R‐SYB082 and its application in degradation of ethyl carbamate in Chinese rice wine (Huangjiu)

Identification and expression of bifunctional acid urea‐degrading enzyme/urethanase from Enterobacter sp. R‐SYB082 and its application in degradation of ethyl carbamate in Chinese rice wine (Huangjiu)

Cyanamides

Cooperative Binding of Nitrile Moieties Within a Bimetallic Pocket: Enforcing Side-On π-Interaction With a High-Spin Nickel(II) Site

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