Isolation and identification of procyanidins in apple pomace
Isolation and identification of procyanidins in apple pomace
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DOI：
10.1016/s0308-8146(98)00150-2
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发表时间：
1999-03
期刊：
影响因子：
8.8
通讯作者：
L. Foo;Yinrong Lu
中科院分区：
文献类型：
--
作者：
L. Foo;Yinrong Lu
对苹果果渣中原花青素成分的化学性质进行了研究，这是寻求利用苹果汁工业产生的大量果渣的方案的一部分。分离鉴定了一系列表儿茶素低聚物，即表儿茶素-(4β-6)表儿茶素、表儿茶素（4β-8）表儿茶素、表儿茶素（4β-8）表儿茶素和表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素（4β-8）表儿茶素(4β-8)-表儿茶素。原花青素聚合物也被Sephadex LH20柱分离和纯化，并显示仅由表儿茶素单位组成。通过13c - nmr、酸催化与间苯三酚的降解反应和电喷雾质谱法确定了这些原花青素的化学结构。
The chemical nature of the procyanidin components in apple pomace was investigated as part of a programme seeking alternative uses of the large quantity of pomace that is being generated from the apple juice industry. The homogeneous nature of the procyanidin fractions was demonstrated by the isolation and identification of a range of epicatechin oligomers, namely epicatechin-(4β-6) epicatechin, epicatechin (4β-8) epicatechin, epicatechin (4β-8) epicatechin (4β-8) epicatechin and epicatechin (4β-8) epicatechin (4β-8) epicatechin (4β-8)-epicatechin. The procyanidin polymers were also isolated and purified by a Sephadex LH20 column and shown to consist exclusively of epicatechin units. The chemical structures of these procyanidins were established by13C-NMR spectroscopy, by acid-catalysed degradation reaction with phloroglucinol and by electrospray mass spectrometry.