Characterization of the perylenequinone pigments in Japanese Andosols and Cambisol
Characterization of the perylenequinone pigments in Japanese Andosols and Cambisol
复制标题
日本 Andosols 和 Cambisol 中苝醌颜料的表征
DOI：
10.1080/00380768.2018.1536846
复制
发表时间：
2019
影响因子：
2
通讯作者：
Sumida H
中科院分区：
文献类型：
--
作者：
Kobayashi T;Rasmussen C;Sumida H
腐殖酸的绿色组分（Pg）和氯仿提取的绿色组分（CEGF）是土壤有机质的特征组分。由于存在4，9-二羟基二萘嵌苯-3，10-醌（DHPQ）发色团，这些碱性溶液是绿色的。虽然两者都是土壤科学和地球化学领域土地利用和古气候环境影响的潜在指标，但CEGF及其与土壤中Pg的关系尚未完全记录。本研究首先采用紫外-可见光谱（UV-Vis）和红外光谱（IR）方法研究了土壤CEGF组分的化学性质。通过使用氢氧化铵（NH 4 OH）水溶液随后使用氢氧化钠（NaOH）水溶液的连续液-液萃取分离两种CEGF组分。结果表明，NH_4OH可萃取组分的紫外-可见光谱形状与DHPQ非常相似，只是发生了红移。NaOH可提取部分的溶解度和紫外-可见光谱与合成的DHPQ完全相同。它们的红外光谱形状也几乎相同。随后，CEGF的分布在胡敏酸（HA），富里酸（FA）和胡敏素（HN）从日本的安多土和形成土的定量评估顺序提取。大多数CEGF在HA（60-78%）和HN（22-40%）中检测到，但在FA中未检测到。从灰岩土HA中提取的CEGF的UV-Vis光谱形状显示DHPQ的比例比其衍生物相对更高，而在形成土HA中观察到相反的情况，其CEGF与菌核颗粒（CEGF的可能来源之一）的CEGF相似。这些结果表明产生CEGF的土壤真菌的多样性。定量数据还表明，35-49%的Pg由氯仿可溶性级分组成（即，CEGF），其余51-65%的Pg是氯仿不溶性的。基于这些结果，我们提出CEGF由DHPQ和DHPQ衍生物组成，CEGF是PG的主要组分之一。
The green fraction of humic acid (Pg) and the chloroform-extractable green fraction (CEGF) are characteristic soil organic matter (SOM) components. These alkaline solutions are green-colored due to the presence of 4,9-dihydroxyperylene-3,10-quinone (DHPQ) chromophore. While both of which are potential indicators for the effect of land use and paleoclimatic environment in the fields of soil science as well as geochemistry, CEGF as well as its relationship with Pg in soils are not yet fully documented. In this study, we firstly investigated the chemical properties of soil CEGF fractions by ultraviolet–visible (UV–Vis) and infrared (IR) method. Two CEGF components were separated by sequential liquid-liquid extraction using aqueous ammonium hydroxide (NH4OH) followed by aqueous sodium hydroxide (NaOH). Results showed that the UV–Vis spectral shape of NH4OH-extractable component is very similar to that of DHPQ, except that it is red-shifted. The solubility and UV–Vis spectrum of the NaOH-extractable fraction were completely identical with those of synthesized DHPQ. Their IR spectral shapes were also almost the same. Subsequently, the distribution of CEGF in humic acid (HA), fulvic acid (FA) and humin (HN) from Japanese Andosols and Cambisol was quantitatively evaluated by sequential extraction. Most of CEGF was detected in the HA (60–78%) and HN (22–40%), but not in the FA. While the UV–Vis spectral shape of CEGF extracted from Andosols HAs showed a relatively higher proportion of DHPQ than its derivative, the opposite was observed in Cambisol HA, whose CEGF is similar to that of sclerotium grain (one of the possible origin of CEGF). These results suggest the diversity of CEGF-producing soil fungi. Quantitative data also indicated that 35–49% of Pg consisted of a chloroform-soluble fraction (i.e., CEGF) and the remaining 51–65% of Pg was chloroform-insoluble. Based on these results, we propose that CEGF is composed of DHPQ and DHPQ-derivatives and that CEGF is one of the major fractions of Pg.
登录
查看更多内容
土壤腐植酸绿色部分的傅里叶变换离子回旋共振质谱分析。
DOI：
10.1002/rcm.6718
发表时间：
2013
期刊：
Rapid communications in mass spectrometry : RCM
影响因子：
--
作者：
K. Ikeya;R. Sleighter;P. Hatcher;A. Watanabe
通讯作者：
A. Watanabe
日本九州南部火山灰土层序中腐植酸Pg组分的存在状态及形成环境
DOI：
10.4116/jaqua.40.19
发表时间：
2001
期刊：
The Quaternary Research (daiyonki-kenkyu)
影响因子：
--
作者：
Makiko Watanabe;Takayuki Kobayashi
通讯作者：
Takayuki Kobayashi
蚜虫色素 – 第 X 部分. 4 : 9-二羟基苝-3 : 10-醌的制备和性能
DOI：
--
发表时间：
1954
期刊：
影响因子：
--
作者：
A. Calderbank;A. Johnson;A. Todd
通讯作者：
A. Todd
一种类似于凋落物分解真菌产生的P型腐植酸及相关化合物的PG级分的绿色颜料
影响因子：
2
作者：
O. Sato
通讯作者：
O. Sato
影响因子：
4.2
作者：
A. Watanabe;H. Fujimori;Y. Nagai;T. Miyajima;S. Kuwatsuka
通讯作者：
S. Kuwatsuka