中文名称: 氨基琼脂糖凝胶4B
英文名称: EAH Sepharose 4B
产品规格: 进分
氨基琼脂糖凝胶4B包装:25毫升
产品规格: 国产
包装:25毫升
氨基琼脂糖凝胶4B级别:BR
Active group:amino group
Active group concentration:7-12umoles amino groups/ml drained matrix
Spacer:1.6-diaminohexane(11 atom)
Coupling capacity:Application dependent
Bead structure:4% agarose
Bead size range:45~165um
Mean bead size:90um
Max linear flow rate:75cm/h at 25℃;HR 16/10 column;5cm bed height
pH stability:long term and working,short term :3~14
Chemical stability:Stable to all commonly used aqueous buffers
Physical stability:Negligible volume variation due to changes in pH or ionic strength
性状:含20%乙醇,底部为乳白色胶体
用途:生化研究。
保存:2~8℃
矢车菊素半乳糖苷 Cyanidin 3-galactoside chloride >97%
氯化花青素-3-槐糖苷 Cyanidin 3-O-sophoroside chloride >98%
花青素鼠李葡糖苷 Cyanidin 3-rutinoside chloride >98%
矢车菊素-3-桑布双糖苷 Cyanidin 3-sambubioside chloride >98%
矢车菊素-3-桑布双糖苷-5-葡萄糖苷 Cyanidin 3-sambubioside-5-glucoside chloride >98%
矢车菊素-3-槐糖苷 Cyanidin 3-sophoroside chloride >97%
氯化花青素 Cyanidin chloride >98%
飞燕草素3,5-葡萄糖苷 Delphinidin 3,5-diglucoside chloride >98%
飞燕草素-3-阿拉伯糖苷 Delphinidin 3-arabinoside chloride
飞燕草素半乳糖苷 Delphinidin 3-galactoside chloride >98%
飞燕草素葡萄糖苷 Delphinidin 3-glucoside chloride >98%
飞燕草素鼠李葡糖苷 Delphinidin 3-rutinoside chloride >98%
飞燕草素-3-桑布双糖苷 Delphinidin 3-sambubioside chloride >98%
飞燕草素-3-桑布双糖苷-5-葡萄糖苷 Delphinidin 3-sambubioside-5-glucoside chloride >98%
氯化花翠素 Delphinidin chloride >98%
异翅果定碱 Isopteropodine(Uncarine E) >98%
恩卡林碱E Isopteropodine(Uncarine E) >98%
甘草皂苷G2 Licoricesaponin G2 (24-Hydroxyglycyrrhizin) >98%
24-氢氧甘草甜素 Licoricesaponin G2 (24-Hydroxyglycyrrhizin) >98%
甘草皂苷H2 Licoricesaponin H2 (Liquiritinic acid diglucoside) >98%
二葡萄糖苷酸 Licoricesaponin H2 (Liquiritinic acid diglucoside) >98%
氨基琼脂糖凝胶4B用途:白色无臭结晶性粉末。有特殊甜味,甜度约为蔗糖的70%。为甘氨酸的1.6倍,属最甜的氨基酸。 在水产动物(虾、蟹)中含量较多,并形成特征性呈味成分。200℃以上开始升华,熔点297℃(分解)。对热及化学性能稳定。易溶于水(17%,25℃),微溶于乙醇(80%冷酒精中0.2%),不溶于乙醚。5%水溶液的ph值5.5~7.0。用途:能改善甜感,增强甜感醇厚度,改进酸感调味效果,能提高腌制品和醋渍品风味,缓和涩味、苦味、辛辣味,防止啤酒老化。能抑制大肠杆菌、革式阳性菌、乳酸菌及好气菌等生长发育。另有异构体L-β-丙氨酸,未见有存在与蛋白质中的报告,含于苹果汁等中,甜度比α型为小。