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中文名(CN) 英文名(EN) CAS No. 规格(SP) 报价(CNY) 产地(From) 类别(Key)
琼脂粉 (植物细胞级) Agar (plant cell culture tested) 9002-18-0 100G 530.00 Sigma-A7921 培养基
琼脂粉 (植物细胞级) Agar (plant cell culture tested) 9002-18-0 500G 2300.00 Sigma-A7921 培养基
琼脂粉 (植物细胞级) Agar (plant cell culture tested) 9002-18-0 1K0G 3890.00 Sigma-A7921 培养基
琼脂粉 (植物细胞级) Agar (plant cell culture tested) 9002-18-0 2.5KG 8500.00 Sigma-A7921 培养基

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中文名称 琼脂粉,琼脂,琼胶,洋菜
英文名称 Agar powder,Agar-Agar,Gelose,2X YT Agar,Agar,Gum agar
CAS识别号 9002-18-0
MDL识别号 MFCD00081288
EC识别号 232-658-1
Beilstein Null,without related properties.
分子式 (C12H18O9)n
分子量 Null,without related properties.
分子结构图 分子图
产品性状 条状琼脂呈无色半透明或类白色至淡黄色,表面皱缩,微有光泽,质轻软而韧,不易折,完全干燥后,则脆而易碎;粉状琼脂为白色或淡黄色鳞片状粉末。琼脂无臭,味淡。不溶于冷水,但能徐徐吸水,膨润软化,可以吸收20多倍的水。易分散于沸水成溶胶,溶胶呈中性反应。0.1%~0.6%以P的溶胶于28~42℃下可变成凝胶,并在85℃以下不熔化。琼胶不参与人体代谢,无营养价值。大白鼠经口LD5011g/kg,小白鼠经口LD5016g/kg,ADI不限(No limited,FAO/WHO,1994)。
质量标准 Agar is a polysaccharide complex obtained through bleaching and hot water extraction of agarocytes from the red alga Rhodophyceae, found in the Pacific and Indian Oceans and in the Sea of Japan. The genera Gelidium, Acanthopeltis, Ceramium, Pterocladia and Gracilaria predominate in agar production. Agar is composed of about 70% agarose and 30% agaropectin.2,3 Agarose: A neutral gelling fraction which consists of a linear polymer of alternating D-galactose and 3,6- anhydrogalactose units (see Figure 1). Agaropectin: A non-gelling fraction which consists of $-1,3-glycosidically linked D-galactose units, some of which are sulfated at position 6 (see Figure 2).
储存条件 常温密封避光保存,Stored in cool, dry and airproof.
包装说明 Bellancom原装进口,正品保证,Bellancom Chemistry The original.
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