生物来源
oranges
质量水平
检测方案
≥85% (titration)
形式
powder
颜色
white to brown
mp
60 °C
溶解性
aqueous NaOH: 1%, clear to hazy
储存温度
room temp
InChI
1S/C6H10O7/c7-1-2(8)4(5(10)11)13-6(12)3(1)9/h1-4,6-9,12H,(H,10,11)/t1-,2+,3+,4-,6-/m0/s1
InChI key
AEMOLEFTQBMNLQ-BKBMJHBISA-N
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一般描述
聚半乳糖醛酸由半乳糖醛酸单元组成，有一种很长的聚合物链。聚半乳糖醛酸的甲酯形成果胶质。
应用
聚半乳糖醛酸可螯合金属离子。 它还可在Ca2+存在下产生凝胶，从而用于药物释放或在生物分子生产中固定细胞或酶。
聚半乳糖醛酸已被用于：
- 2F4 初级抗体溶液的预吸附
- 作为测定聚半乳糖醛酸酶活性的底物
- 制备寡半乳糖醛酸盐混合物，其可用作测定不同乙酰酯酶特异性的底物。
生化/生理作用
在陆生植物中，聚半乳糖醛酸是细胞壁多糖（果胶）的主要成分。与多聚半乳糖醛酸酶抑制肽（PGIP）结合可保护果胶免于被真菌多聚半乳糖醛酸酶降解。
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type N95 (US)
法规信息
植物油/植物胶产品
Bacterial Wilt Disease: Molecular and Ecological Aspects, 171-171 (1998)
Zhangyong Dong et al.
BMC biochemistry, 12, 51-51 (2011-09-17)
Fusarium wilt is an economically devastating disease that affects banana production. Although Cavendish banana cultivars are resistant to Fusarium oxysporum f.sp. cubense race 1 (FOC1) and maitain banana production after Gros Michel was destructed by race 1, a new race
L Kurillová et al.
Journal of microencapsulation, 17(3), 279-296 (2000-05-20)
The structure of standard and stabilized calcium pectate gel (CPG) beads has been examined by scanning (SEM) and transmission (TEM) electron microscopy. A two-stage crosslinking procedure with polyethyleneimine (PEI) and glutaraldehyde (GA) led to the formation of a more compact
Mouyong Zou et al.
PloS one, 8(11), e79357-e79357 (2013-11-16)
An alkaline polygalacturonate lyase (PGL) from Bacillus subtilis 7-3-3, PelC, with diverse depolymerization abilities for different pectin substrates was found. The PGL activity of PelC decreased with increasing degree of methyl esterification of the substrate. PelA and PelC displayed notable
Biotechnology for Livestock Production, 246-246 (1989)
实验方案
To measure pectinase activity, a titrimetric stop reaction assay is used. One unit of pectinase will liberate 1 μmol of galacturonic acid from poly-galacturonic acid per hour at pH 4.0 at 25 °C.
在测定果胶酶活性时，使用了一种滴定终止反应法进行测定。在25 °C、pH 4.0条件下，一个单位的果胶酶每小时可从多聚半乳糖醛酸释放1 μmol 的半乳糖醛酸。
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