L-알라닌

개요알라닌은 일반적으로 피루브산의 환원적 아미노화 반응에 의해 생성된다. 아미노 전이 반응은 가역적이며, 피루브산이 널리 분포하므로, 알라닌은 쉽게 형성되며, 따라서 해당작용이나, 당합성작용, 그리고 시트르산 회로와 같은 대사과정에 밀접하게 관여되어있으며, 따라서 비필수 아미노산이다. 알라닌은 알라닌 회로를 통해서 젖산과 더불어 단백질로부터 포도당을 합성한다. 수육, 가금류, 어류, 난류, 유제품과 같은 단백질이 포함된 식품은 알라닌이 풍부하다.

개요L-Alanine is a non-essential amino acid. It is produced by direct β-decarboxylation of L-aspartate by L-aspartate β-decarboxylase or transamination of pyruvate in the glucose-alanine cycle and is a precursor for gluconeogenesis. Dysregulation of L-alanine metabolism is associated with various disease states, including diabetes, metabolic syndrome, ketotic hypoglycemia, and acquired acute lactic acidosis.

출처Natural constituent of protein in plants and animals; found in apple, beef, carob, pea, soybean, wine and zucchini

용도L-Alanine plays a vital role in glucose-alanine cycle between tissue and liver. It is used for protein construction as well as involved in the metabolism of tryptophan and vitamin pyridoxine. It provides energy for muscles and central nervous system in order to strengthen the immune system. It helps in the metabolism of sugars and organic acids, and enhances the germination rates of Bacillus subtilis spores. It also displays a cholesterol-reducing effect in animals.

일반 설명L-Alanine, a non-essential amino acid,is produced enzymatically fromL-aspartate using aspartate β-decarboxylase.It is the smallest among all the amino acids.Pharmaceutical secondary standards for application in quality control, provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards.

생산 방법L -Alanine is industrially produced from L -aspartic acid by means of immobilized Pseudomonas dacunhae cells in a pressurized bioreactor. An alanine racemase-deficient mutant of Arthro-bacter oxydans was reported, that produces75 g/L L -alanine from glucose with a yield of 52% and 95% e.e. A small amount of L -alanine is still isolated from protein hydrolysates.

Anthrobacter oxydans HAP-1 hyper produces DL-alanine in a nongrowth-associated manner.