DL-알라닌

DL-알라닌 속성

DL-알라닌 MSDS

DL-Alanine

DL-알라닌 C화학적 특성, 용도, 생산

순도시험

  (1) 용상 : 이 품목 1g을 물 10mL에 녹일 때, 그 액은 무색징명하여야 한다.

  (2) 액성 : 이 품목의 수용액(1→20)의 pH는 5.5～7.0이어야 한다.

  (3) 비소 : 이 품목을 비소시험법에 따라 시험할 때, 그 양은 4.0ppm 이하이어야 한다.

  (4) 납 : 이 품목 5.0g을 취하여 원자흡광광도법 또는 유도결합플라즈마발광광도법에 따라 시험할 때, 그 양은 5.0ppm 이하이어야 한다.

확인시험

  (1) 이 품목 0.2g을 묽은황산 10mL에 녹이고 과망간산칼륨 0.1g을 가하여 끓이면 아세트알데히드의 냄새를 발생한다.

  (2) 이 품목의 수용액(1→1,000) 5mL에 닌히드린시액 1mL를 가하여 3분간 가열하면 자색을 나타낸다.

정량법

  이 품목 약 0.2g을 정밀히 달아 개미산 3mL에 녹이고 이하 「글리신」의 정량법에 따라 정량한다.

0.1N 과염소산용액 1mL ＝ 8.909mg C₃H₇NO₂

강열잔류물

  이 품목의 강열잔류물은 0.2% 이하이어야 한다.

개요

DL-Alanine is the racemic modification of alanine, which si a non-essential amino acid that occurs in high levels in its free state in plasma. DL-Alanine is a colorless to white needle crystal or crystalline powder that is odorless and has a peculiarly sweet taste. It begins to sublime above 200℃ and the melting point is 297℃ (decomposition). It dissolves readily in water(25℃, 17%), slightly in ethanol and insoluble in ether. DL-Alanine is mainly used in food processing industry for nutritional supplements and seasoning, and also used in pharmaceutical industry. DL-alanine could enhance the effect of chemical seasoning sauce. Wiith a special sweet taste, DL-Alanine can improve the artificial sweetener, the acidity of organic acid and the flavor of vinegar. With sour, DL-Alanine could make salt fast tasty, to improve the effect of pickled vegetables and pichles. It could shorten the curing time and improve the flavor. As sour correction agent and buffer in synthesis of wine and drink, DL-Alanine could prevent foaming wine aging and reduce the smell of yeast. With antioxidant properties, DL-Alanine could be used in a vatiety of food processing, such as oil, egg yolk sauce, grains, soy sauce dipping food, rice bran preservend food.

화학적 성질

DL-Alanine is a colorless to white odorless needle crystal or crystalline powder with a sweet taste. Taste threshold 0.06%. Those recrystallized from water-ethanol liquid are orthorhombic crystals, and those recrystallized from water are needle crystals or crystalline powders. The PH value of 5% aqueous solution is 5.5~7.0. It melts and decomposes at about 295~300°C. Chemical properties is stable. In case of nitrous acid, it can be transformed into L-lactic acid. Soluble in water (16.72g/100ml, 25°C). Slightly soluble in ethanol. No optical activity.

출처

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

용도

DL-Alanine is used in mixed ligand (chelate) studies with transition metals such as Cu(II), Zn(ll) and Cd(ll). It is a functional component in the alanine cycle which regulates the level of alanine aminotransferases which can be used as a diagnostic tool to predict type II diabetes. It is used as a model reagent for development of amino acid racemic resolution techniques.

제조 방법

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

정의

ChEBI: DL-Alanine is an alpha-amino acid that consists of propionic acid bearing an amino substituent at position 2. It has a role as a fundamental metabolite. It is functionally related to a propionic acid. It is a conjugate base of an alaninium. It is a conjugate acid of an alaninate. It is a tautomer of an alanine zwitterion.

참고 문헌

1.https://www.ncbi.nlm.nih.gov/mesh/68000409
2.https://www.ulprospector.com/en/na/Food/Detail/16049/381925/DL-Alanine
3.http://www.sinogel.com/products_detail_en/id/3.html
4.http://www.hugestone-china.com/product_detail/id/63.html

DL-알라닌 준비 용품 및 원자재

원자재

준비 용품

DL-알라닌 공급 업체

공급자	전화	이메일	국가	제품 수	이점
DONBOO AMINO ACID COMPANY	+8613063595538	donboo@donboo.com	China	9363	58
Hebei Weibang Biotechnology Co., Ltd	+8615531157085	abby@weibangbio.com	China	8810	58
Hebei Mojin Biotechnology Co., Ltd	+86 13288715578 +8613288715578	sales@hbmojin.com	China	12840	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-13131129325	sales1@chuanghaibio.com	China	5892	58
Hebei Kingfiner Technology Development Co.Ltd	+86-15532196582 +86-15373005021	lisa@kingfinertech.com	China	3010	58
Zibo Hangyu Biotechnology Development Co., Ltd	+86-0533-2185556 +8617865335152	Mandy@hangyubiotech.com	China	10986	58
Hebei Mojin Biotechnology Co.,Ltd	+86-15028179902	angelia@hbmojin.com	China	1177	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29791	60
Shanghai Daken Advanced Materials Co.,Ltd	+86-371-66670886	info@dakenam.com	China	18775	58
Shanghai Bojing Chemical Co.,Ltd.	+86-86-02137122233 +8613795318958	bj1@bj-chem.com	China	299	55

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